WO2010067501A1 - 減圧機構、穿刺装置、血液分析装置及びセンサ装着機構 - Google Patents
減圧機構、穿刺装置、血液分析装置及びセンサ装着機構 Download PDFInfo
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- WO2010067501A1 WO2010067501A1 PCT/JP2009/005380 JP2009005380W WO2010067501A1 WO 2010067501 A1 WO2010067501 A1 WO 2010067501A1 JP 2009005380 W JP2009005380 W JP 2009005380W WO 2010067501 A1 WO2010067501 A1 WO 2010067501A1
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- puncture
- sensor
- piston
- skin
- sealing means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
- A61B5/150061—Means for enhancing collection
- A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150175—Adjustment of penetration depth
- A61B5/150198—Depth adjustment mechanism at the proximal end of the carrier of the piercing element
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150358—Strips for collecting blood, e.g. absorbent
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15111—Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15134—Bladeless capillary blood sampling devices, i.e. devices for perforating the skin in order to obtain a blood sample but not using a blade, needle, canula, or lancet, e.g. by laser perforation, suction or pressurized fluids
- A61B5/15136—Bladeless capillary blood sampling devices, i.e. devices for perforating the skin in order to obtain a blood sample but not using a blade, needle, canula, or lancet, e.g. by laser perforation, suction or pressurized fluids by use of radiation, e.g. laser
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/1519—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for propelling the piercing unit
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
- A61B5/15188—Constructional features of reusable driving devices
- A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
- A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/157—Devices characterised by integrated means for measuring characteristics of blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150221—Valves
Definitions
- the present invention relates to a decompression mechanism, a puncture device, a blood analyzer, and a sensor mounting mechanism used for a puncture device for collecting blood in blood measurement such as blood glucose level measurement.
- a puncture needle is attached to the puncture tool and at the same time a biasing force for puncture is stored.
- a puncture device has also been invented (see, for example, Patent Document 1). Such a puncture device performs puncture and removal operations using two compression springs, that is, a first compression spring for puncture and a second compression spring for removal.
- a puncture needle that discards the entire part touching the skin has been developed to prevent infection due to blood adhesion.
- Patent Document 2 includes a first urging means for urging the puncture plunger in the distal direction and a sealing member having airtightness, and a suction plunger that brings the inside of the housing into a reduced pressure state by moving in the proximal direction.
- a puncture device is provided.
- Patent Document 3 describes an apparatus for collecting a blood sample from a patient in a painless manner for glucose monitoring.
- FIG. 1 is a view showing a reduced-pressure blood collection mechanism using a spring used in a conventional puncture device.
- the vacuum blood collection mechanism 1 includes a piston 2, a cylinder 3 that slidably accommodates the piston 2, a spring 4 that urges the piston 2 to push outward, and an end of the piston 2. It is comprised from the packing 5 attached to the outer peripheral part of 2a.
- the packing 5 maintains the airtightness of the sealed space 7 including the end surface 2b of the end portion 2a of the piston 2, the inner peripheral surface 3a of the cylinder 3, and the skin 6 in contact therewith.
- FIG. 1A shows a normal state in which the puncturing operation is not performed.
- the operation of decompressing the puncture device using the decompression blood collection mechanism 1 will be described.
- the skin 6 is brought into contact with the inner peripheral surface 3a of the cylinder 3 in a state in which the spring 4 is previously contracted to create a sealed space 7.
- the piston 2 is pushed down again to adjust the atmospheric pressure to atmospheric pressure, and then the skin 6 is released.
- FIG. 2 is a perspective view of the blood sampling device described in Patent Document 3.
- the device housing is open.
- the blood extraction device 1100 has a housing 1102, and the housing 1102 has a receiving part 1102a and a protruding part 1102b.
- the gasket 1104 seals the portions 1102a and 1102b of the housing 1102 and separates the receiving portion 1102a from the protrusion 1102b.
- the receiving part 1102a fits firmly with the protrusion part 1102b by friction.
- the protruding elements 1102c and 1102d are used to guide the protruding portion 1102b to the receiving portion 1102a.
- a housing 1102 is provided with a vacuum pump (not shown), a lancing assembly 1108, a battery (not shown), and electronic equipment (not shown).
- the switch 1109 is provided to put the electronic device in an operating state.
- the receiving portion 1102a and the protruding portion 1102b are firmly fitted to each other.
- the portion of the receiving portion 1102a of the housing 1102 of the device 1100 that is in contact with the skin is provided with a seal 1110.
- the seal 1110 surrounds the opening 1112 of the receiving part 1102a.
- the opening 1112 of the receiving part 1102a provides communication between the blood extraction chamber adjacent to the glucose detector 1114 and the skin surface.
- device 1100 is positioned such that incision assembly 1108 is placed over an area on the surface of the skin from which the sample is taken.
- the receiving portion 1102a of the housing 1102 of the device 1100 is placed against the skin and a vacuum is created by the seal 1110.
- the vacuum pump moves and a suction action occurs.
- the skin surrounded by the seal 1110 becomes congested by the suction action of the vacuum pump.
- the skin is stretched and lifted to the opening 1112.
- the incision assembly 1108 is fired and lifted to the opening 1112 to penetrate the lancet 1116 through the congested skin.
- the lancet 1116 is preferably fired automatically using a solenoid valve (not shown) that fires the lancet 116 by a vacuum actuated piston (not shown).
- the glucose detector 1114 is inserted into the slot 1118 of the protrusion 1102b of the housing 1102.
- the receptacle 1102a of the housing 1102 moves the glucose detector 1114 into place for testing.
- the result obtained from the glucose detector 1114 is displayed on the screen 1120.
- the receiving portion 1102a is separated from the protruding portion 1102b when the lancet 1116 or the glucose detector 1114 is replaced. In the process of collecting the blood sample, the receiving part 1102a is firmly fitted to the protruding part 1102b.
- the sensor (glucose detector 1114) is arranged in the decompressed space. In order to perform decompression, it is indispensable to install and measure the entire sensor in a predetermined space.
- JP 2000-245717 A Japanese Patent Laid-Open No. 11-206742 JP 2004-000459 A
- the conventional manual decompression blood collection device requires several manual decompression operations such as pushing the piston 2 into the cylinder 3. This is because the puncture device is incorporated in the decompression space in the device housing, and thus the volume of the decompression space is large and several operations are required to obtain a desired decompression value.
- the present invention has been made in view of the above points, and a decompression mechanism, a puncture device, a blood analysis device, and a sensor capable of generating a desired decompression with a simple operation and improving operability and maintainability.
- An object is to provide a mounting mechanism.
- the pressure reducing mechanism of the present invention includes a cylinder having a bottom, a piston having a first end protruding from the bottom, and a second end inside the cylinder and sliding along the axis of the cylinder, A first sealing means for sealing the bottom portion and the outer periphery of the piston; a second sealing means for sealing the second end portion and the inner periphery of the cylinder; and the first and second sealing means, and the piston And an air chamber surrounded by an inner periphery of the cylinder, and the piston has a communication hole that connects the air chamber and a hollow space opened at the first end.
- the puncture device of the present invention is provided with a housing, a puncture means for puncturing the skin, a puncture mechanism for operating the puncture means, a cylinder having a bottom, and a first end protruding from the bottom And a piston having a second end portion inside the cylinder and sliding along an axis of the cylinder, a first sealing means for sealing the bottom portion and the outer periphery of the piston, and the second end portion And a second sealing means for sealing the cylinder inner periphery, and a third sealing means for sealing the hollow space opened at the first end and the puncture mechanism at the connecting portion between the piston and the puncture mechanism. And an air chamber sealed by the first and second sealing means and surrounded by an outer periphery of the piston and an inner periphery of the cylinder, wherein the piston communicates with the air chamber and the hollow space.
- the puncture device of the present invention includes a housing, and a puncture means provided in the housing for puncturing the skin,
- a puncture mechanism that operates the puncture means, a cylinder having a bottom, a piston that slides along the axis of the cylinder, and an end of the piston and an inner periphery of the cylinder are hermetically sealed.
- a decompression mechanism including a communication hole that connects the air chamber and the decompression target space of the puncture mechanism.
- the blood analyzer of the present invention is a blood analyzer for analyzing blood exuded by puncture with a sensor, and a casing, a puncturing means provided in the casing and puncturing the skin, and operating the puncturing means
- Comprising the piston Has a communicating hole that connects said air chamber and said hollow space, said first end portion has a configuration having a contact portion which can come into contact with the skin, and a holding portion for holding the sensor.
- the blood analyzer of the present invention is a blood analyzer for analyzing blood exuded by puncture with a sensor, and a casing, a puncturing means provided in the casing and puncturing the skin, and operating the puncturing means
- a puncture mechanism a cylinder having a bottom, a piston inside the cylinder that slides along the axis of the cylinder, a first sealing means for sealing the end of the piston and the inner periphery of the cylinder, A second sealing means for sealing the opening of the cylinder and the outer periphery of the piston; an air chamber sealed by the first and second sealing means and surrounded by the outer periphery of the piston and the inner periphery of the cylinder; And a decompression mechanism comprising a communication hole that connects the air chamber and a decompression target space of the puncture mechanism.
- the blood analyzer of the present invention comprises a housing, a sensor having an opening, and a puncturing means housed in the housing and puncturing with a puncture needle or laser light, and the puncture needle or laser light is transmitted through the opening.
- a blood analyzer that pierces the skin and punctures the skin and introduces and analyzes the blood exuded from the puncture into the sensor, and slidably protrudes from the end of the casing, which is one end of the casing
- a support portion that is slidably supported by the support portion and holds the sensor, a skin contact portion that is provided at a protruding end portion of the support portion and can contact the skin, and the support
- the sensor holding part slidably supported by the part, the first spring urging with the first expansion / contraction strength so as to keep the skin contact part at a predetermined interval, and the slidably supported by the support part
- the sensor holding part and the housing end are spaced at a predetermined interval.
- the second spring that is biased with the second stretch strength, and the opening of the sensor held by the sensor holding portion and the skin when the skin contact portion is pushed toward the housing end portion
- the sensor mounting mechanism of the present invention includes a support portion that protrudes slidably from an end portion of the housing, a sensor holding portion that is slidably supported by the support portion and holds the sensor, and a protruding end portion of the support portion.
- the skin contact portion that is provided and capable of contacting the skin, the sensor holding portion that is slidably supported by the support portion, and the skin contact portion are biased with a first stretch strength so as to be maintained at a predetermined interval.
- the present invention by maintaining airtightness between the reduced-pressure blood collection mechanism and the puncture operation generating mechanism, it is possible to generate a reduced pressure only by pushing the skin contact portion toward the apparatus main body.
- the skin and the device can be appropriately separated, and scattering of blood due to rapid inflow of air can be prevented.
- the sensor holding part, the skin contact part, and the housing end part are sealed through the first and second sealing means, so that a desired reduced pressure can be generated by a simple operation. And maintainability can be improved.
- the figure which shows the pressure reduction blood-collecting mechanism by the spring used for the conventional puncture device Perspective view of a conventional blood sampling device
- the figure explaining the principle of the decompression blood collection mechanism of this invention The figure explaining the principle of the decompression blood collection mechanism of this invention
- Sectional drawing which shows the structure of the laser puncture type puncture device which has the pressure reduction blood-collecting mechanism of this invention
- Sectional drawing which shows the structure of the puncture blood collection apparatus which has a pressure reduction blood collection mechanism of this invention.
- Sectional drawing which shows the structure of the puncture needle type puncture device which has the pressure reduction blood-collecting mechanism of this invention
- FIG. The figure explaining the puncture operation
- FIG. The figure explaining the pressure reduction operation
- FIG. 1 The figure which shows the other structural example of the packing shape of the piston of the puncture device which concerns on the said Embodiment 1.
- FIG. 1 The figure which shows the guide for puncture needle shake prevention attached to the piston of the puncture device which concerns on the said Embodiment 1.
- FIG. 1 The figure which shows the guide for puncture needle shake prevention attached to the piston of the puncture device which concerns on the said Embodiment 1.
- FIG. 1 The figure which shows the other structural example of the packing shape of the piston of the puncture device which concerns on the said Embodiment 1.
- FIG. 1 The figure which shows the guide for puncture needle shake prevention attached to the piston of the puncture device which concerns on the said Embodiment 1.
- FIG. The figure explaining the shape of
- FIG. 3 The figure which shows the puncture device by Embodiment 3 of this invention
- FIG. 4 The figure which shows the puncture device by Embodiment 4 of this invention
- the top view which shows the structure of the sensor mounting mechanism of the blood analyzer which concerns on Embodiment 5 of this invention. Sectional drawing of the sensor holding part of the sensor mounting mechanism of the blood analyzer which concerns on the said Embodiment 5.
- FIG. 5 The figure explaining operation
- FIG. The figure which shows the other structural example of the sensor insertion part of the sensor holding part of the blood analyzer which concerns on the said Embodiment 5.
- FIG. The figure which shows the other structural example of the sensor insertion part of the sensor holding part of the blood analyzer which concerns on the said Embodiment 5.
- FIG. Sectional drawing which shows the blood analyzer which concerns on Embodiment 6 of this invention.
- FIG. 3A, FIG. 3B, FIG. 3C, FIG. 3D, FIG. 3E and FIG. 3F are diagrams for explaining the principle of the vacuum blood collection mechanism of the present invention.
- the reduced-pressure blood collection mechanism 10 has a skin contact portion 11a that contacts the skin at one end, a piston 11 that has an end portion 11b at the other end, and an opening portion 12a that communicates the piston 11.
- the piston 11 communicates with a cylindrical internal space 16, a cylinder 12 inner peripheral surface 12 b facing the opening 12 a, an end surface 11 c of the end portion 11 b of the piston 11, and a sealed space 17 including the outer peripheral portion of the piston 11. 11d.
- the communication hole 11d is always opened at a position communicating with the sealed space 17 sealed with the packing 13 and the packing 14, regardless of the sliding state of the piston 11. For this reason, the opening position of the communication hole 11 d is a position close to the end portion 11 b of the piston 11. Moreover, it is preferable that a plurality of communication holes 11d are opened.
- the packing 13 and the packing 14 keep the airtight space 17 airtight. Further, when the skin 18 abuts against the skin abutting portion 11 a of the piston 11, the packing 13 and the packing 14 include a cylindrical inner space 16 closed by the abutting skin 18 and the cylindrical inner space 16. The hermetic space 17 communicating through the communication hole 11d is kept airtight.
- the reduced-pressure blood collection mechanism 10 includes a cylinder 12 having an opening 12a, a skin contact portion 11a protruding from the opening 12a, and an end 11b that slides along the axis of the cylinder 12 inside the cylinder 12.
- a seal 11 that seals the opening 12 a and the outer periphery of the piston 11, a packing 13 that seals the end 11 b and the inner periphery of the cylinder 12, and an outer periphery of the packing 13, the packing 14, and the piston 11.
- the piston 11 has a communication hole 11d that connects the sealed space 17 and the cylindrical internal space 16 that opens to the skin contact portion 11a.
- FIG. 3A shows a normal state where the puncturing operation is not performed (referred to as an initial state).
- an initial state a normal state where the puncturing operation is not performed
- the entire vacuum blood collection mechanism 10 is brought close to the skin 18, thereby bringing the skin contact portion 11 a of the piston 11 into contact with the skin 18.
- the cylindrical inner space 16 of the piston 11 is open at the lower end in the initial state (the state shown in FIG. 3A), but becomes the initial sealed space 16A for the following reason. That is, when the skin contact portion 11 a contacts the skin 18, the cylindrical internal space 16 becomes a sealed space 16 A, and when the piston 11 is pushed toward the skin 18, the seal 13 is sealed with the packing 13 and the packing 14.
- a negative pressure is generated by enlarging the sealed space 17, and this negative pressure communicates with the communication hole 11 d to depressurize the sealed space 16 ⁇ / b> A.
- FIG. 3C shows a state where the piston 11 is pushed deeper into the cylinder 12 and the sealed space 17 and the sealed space 16A are further depressurized. In this state, the piston 11 is acting to return to the original state.
- FIG. 3D shows the same state as FIG. 3C and shows the force that the piston 11 tries to return to the original state (see the arrow indicating the downward direction in FIG. 3D).
- the relationship between the adhesion strength of the skin and the skin contact portion is as follows. That is, the greater the reduced pressure value, the greater the pushing force and the greater the adhesion, but the adhesion is less at the point where the skin leaves. For this reason, it is difficult for the piston 11 to completely return to the original state due to the relationship between the sliding resistance between the piston 11 and the cylinder 12 and the atmospheric leakage. Therefore, as shown in FIG. 3F, it is preferable to provide a spring 15 in the cylinder 12 that is always offset to the original state. The spring 15 also has an effect of increasing the adhesion force between the skin 18 and the skin contact portion 11a in the initial stage of occurrence of decompression.
- an operation for reducing the pressure when a necessary amount of blood is obtained by collecting blood under reduced pressure only by pressing a previously punctured portion against the piston 11 and pushing it into the apparatus main body.
- the pressure adjustment to bring the pressure closer to the atmospheric pressure is performed in a series of operations, and the skin 18 and the device are separated from each other.
- the reduced-pressure blood collection mechanism 10 described in the above principle can be applied to a puncture device having any puncture means.
- FIGS. 4 and 5 a puncture device having a laser puncture method as a puncture means is shown in FIGS. 4 and 5, and a puncture device having a needle puncture method is shown in FIG. 6, respectively.
- FIG. 4A and 4B are cross-sectional views showing the configuration of a laser puncture type puncture device having a reduced-pressure blood collection mechanism 10A.
- the same components as those in FIG. 3 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- the laser puncture method puncture device 20 includes a laser puncture device 21 that punctures the skin in a non-contact manner with a laser beam, and a reduced-pressure blood collection mechanism 10A.
- the reduced-pressure blood collection mechanism 10A differs from the reduced-pressure blood collection mechanism 10 of FIG. 3 only in the configuration of the end portion 11b of the piston 11.
- the piston 11 of the vacuum blood collection mechanism 10A is provided with a laser light transmitting member 11e at the center of the end 11b through which the laser light from the laser puncture device 21 passes.
- the entire vacuum blood collection mechanism 10A is brought close to the skin 18, thereby bringing the skin contact portion 11a of the piston 11 into contact with the skin 18.
- the piston 11 in contact with the skin 18 is pushed up into the cylinder 12, and the sealed space 17 and the sealed space 16A are brought into a reduced pressure state.
- the sealed space 16A is depressurized, the skin 18 is swelled and is easily punctured.
- the laser puncture device 21 emits laser light, passes through the laser light transmissive member 11e, reaches the skin 18 through the sealed space 16A, and is punctured.
- FIG. 5A, 5B, and 5C are cross-sectional views showing the configuration of a puncture blood collection device having a reduced-pressure blood collection mechanism 10B.
- the same components as those in FIG. 3 and FIG. 5 are cross-sectional views showing the configuration of a puncture blood collection device having a reduced-pressure blood collection mechanism 10B. The same components as those in FIG. 3 and FIG.
- a laser puncture type puncture device 30 includes a laser puncture device 21 that punctures skin without contact with laser light, a reduced-pressure blood collection mechanism 10B, and a holder that holds a blood sensor (hereinafter referred to as a sensor) 32. 31.
- the vacuum blood collection mechanism 10B is different from the vacuum blood collection mechanism 10A in FIG. 4 only in the configuration of the skin contact portion 11a of the piston 11.
- the piston 11 of the vacuum blood collection mechanism 10B includes a holder mounting portion 11f instead of the skin contact portion 11a of the piston 11 in FIG.
- the holder mounting portion 11 f is provided with a packing 11 g on the outer peripheral portion thereof, and a presser claw 11 h is provided on an end surface facing the holder 31.
- the holder 31 and the holder mounting part 11f hold the sensor 32 placed on the holder 31 with the sensor 32 interposed therebetween.
- the decompression operation of the decompression blood collection mechanism 10B is the same as in FIG. 3 and FIG.
- the laser light generated by the laser puncture device 21 passes through the opening 32a of the sensor 32 and reaches the skin 18.
- a part of the skin on the surface of the skin 18 is evaporated by the laser light, so that blood exuded from the surface of the skin 18 flows out from the end face of the opening 32a of the sensor 32 into the sensor 32.
- a reagent (not shown) (for example, a reagent for measuring a blood glucose level, a lactic acid level, or a cholesterol level) is arranged inside the sensor 32.
- a reagent for example, a reagent for measuring a blood glucose level, a lactic acid level, or a cholesterol level
- the blood reacts with the blood analysis reagent, and the analysis result can be known.
- the sensor 32 may be a holder integrated type or may be a single sensor alone. The configuration of the sensor alone will be described later with reference to an embodiment.
- FIG. 6 is a cross-sectional view showing a configuration of a puncture needle type puncture device having a reduced-pressure blood collection mechanism 10C.
- the same components as those in FIG. 3 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- the puncture needle type puncture device 40 includes a puncture needle 41, a mechanism portion 42 that performs puncture and accommodation of the puncture needle 41, and a reduced-pressure blood collection mechanism 10C.
- the vacuum blood collection mechanism 10C operates on the same operating principle as the vacuum blood collection mechanism 10 of FIG.
- the decompression blood collection mechanism 10C holds the puncture needle 41 in a decompression space (corresponding to the decompression space 16A in FIG. 3).
- the mechanism unit 42 is outside the decompression space and generates a puncturing operation of the puncture needle 41.
- the detailed configuration of the puncture needle type puncture device 40 will be described in the following embodiment.
- FIG. 7 is a cross-sectional view showing a puncture device according to Embodiment 1 of the present invention based on the above basic principle.
- the present embodiment is an example in which a reduced-pressure blood collection mechanism based on the above basic principle is applied to a puncture needle type puncture device.
- a puncture needle type puncture device 100 is provided inside a housing 101 and the housing 101.
- the puncture needle type puncture device 100 is outside the decompression blood collection mechanism and has a puncture needle 160 (corresponding to the puncture needle 41 in FIG. 6).
- a puncture operation generating mechanism 110 (corresponding to the mechanism portion 42 in FIG. 6) for performing a puncture operation, and a reduced-pressure blood collection mechanism 120 (depressurized blood collection in FIG. 6) that holds the sensor 170 and depressurizes the space formed by the contacted skin.
- the sensor mounting mechanism 130 is provided inside a housing 101 and the housing 101.
- the puncture needle type puncture device 100 is outside the decompression blood collection mechanism and has a puncture needle 160 (corresponding to the puncture needle 41 in FIG. 6).
- a puncture operation generating mechanism 110 (corresponding to the mechanism portion 42 in FIG. 6) for performing a puncture operation, and a reduced-pressure blood collection mechanism 120 (depressurized blood collection in FIG. 6) that holds the sensor 170
- the puncture operation generating mechanism 110 includes a lancet unit 111 that is outside the vacuum blood collection mechanism 120 and generates a puncture operation by the puncture needle 160, and a rod 112 that transmits the puncture operation of the lancet unit 111 to the puncture needle 160.
- the lancet part 111 has a base plate 111a, and a plunger 111b, a lever 111c, and a tension spring 111d are attached to the base plate 111a.
- the rod 112 is connected to the plunger 111b, and can slide within a predetermined range in a piston 121 of the vacuum blood collection mechanism 120 described later in conjunction with the operation of the plunger 111b.
- the plunger 111b returns to the natural state by the rotation of the lever 111c urged by the pulling spring 111d.
- the puncture operation generating mechanism 110 is provided in the reduced-pressure blood collection mechanism 120, and includes a packing 113 provided at the end 112a of the rod 112 and a puncture needle holder 114 attached to the packing 113 and mounted with the puncture needle 160. Prepare.
- the puncture operation generating mechanism 110 includes an eject knob 115 that also serves as a puncture depth adjusting unit. After the puncturing operation is finished, the eject knob 115 is pushed. Accordingly, the puncture needle holder 114 is pushed forward of the housing 101 by an eject rod (not shown) biased by an eject rod spring (not shown), and is removed from the puncture tool without touching the puncture needle. Can do. In the case of adjusting the puncture depth, the eject knob 115 is turned.
- the eject knob 115 has a spiral groove (not shown) and a protrusion 116 that engages with the groove, and the protrusion 116 is connected to the lock plate 117. By turning the eject knob 115, the position of the protrusion 116 for adjusting the puncture depth in the axial direction can be changed, and the position of the lock plate 117 can be moved in the front-rear direction of the housing 101.
- the lancet unit 111 and a cylinder 122 of the vacuum blood collection mechanism 120 described later are connected by a rod 118.
- the decompression blood collection mechanism 120 is a decompression mechanism based on the same principle as the decompression blood collection mechanisms 10 and 10A to 10C described in FIGS. However, even though the basic principle is the same, the detailed configuration is slightly different from the viewpoint of mounting. In the case of the present embodiment shown in FIG. 7, the main difference is that the puncture operation generating mechanism 110 operates the puncture needle in the piston 121 of the reduced-pressure blood collection mechanism 120. This will be specifically described below.
- the vacuum blood collection mechanism 120 has a piston 121 having an end 121a that forms part of the sensor mounting mechanism 130 at one end and an end 121b that slidably supports the rod 112 of the lancet 111 at the other end, and a piston 121.
- the piston 121 has a cylindrical shape and has an internal space 140 inside the cylindrical shape.
- the puncture needle holder 114 and the packing 113 to which the puncture needle 160 is attached slide in the cylindrical inner space 140 according to the puncture operation of the rod 112.
- the piston 121 has a sealed space composed of the cylindrical inner space 140, a packing 123 attached to the outer periphery of the piston 121, and a packing 124 attached to the opening 122a of the cylinder 122 (hereinafter, this sealed space is referred to as a decompression chamber). ) 150 is provided with a communication hole 121c. Regardless of the sliding state of the piston 121, the communication hole 121 c is always opened at a position communicating with the decompression chamber 150 sealed with the packing 123 and the packing 124. For this reason, the opening position of the communication hole 121c is a position between the packing 123 and the packing 124 in a natural state. Moreover, it is preferable that a plurality of communication holes 121c are opened.
- the outer peripheral part of the end part 121a of the piston 121 is folded back to return to the housing 101 to form an insertion part 121d.
- the insertion part 121d is slidably inserted into a restriction part 101a (not shown) opened in the housing 101. Since the outer peripheral portion of the end portion 121a of the piston 121 is inserted into the restricting portion 101a of the housing 101 as an insertion portion 121d over the entire circumference and serves as a guide, rattling of the piston 121 during a puncturing operation is prevented.
- the packing 123 and the packing 124 keep the decompression chamber 150 airtight. Further, when the skin comes into contact with the skin contact portion 131 of the sensor mounting mechanism 130, the packing 123 and the packing 124 include a cylindrical internal space 140 that is closed by the contacted skin, and the cylindrical internal space 140. The pressure-reducing chamber 150 communicating through the communication hole 121c is kept airtight.
- the packing 125 is in close contact with the packing 113 at the time of decompression, and maintains the decompressed state more reliably.
- the sensor mounting mechanism 130 includes a skin contact portion 131, a sensor holding portion 132 for holding the sensor 170 in a predetermined position, an end 121a of a piston 121 that is a main body portion of the sensor mounting mechanism 130, and a skin contact portion.
- a first spring 133 that biases between the sensor holding portion 132 and the sensor holding portion 132 with a first stretch strength; a second spring 134 that biases between the sensor holding portion 132 and the end portion 121a with a second stretch strength; First packing 135 that seals between contact portion 131 and sensor 170, second packing 136 that seals between end portion 121a and sensor 170 at the time of puncturing, skin contact portion 131, sensor holding portion 132, and end
- the movable portion holding column 137 (FIG. 21A described later) that moves and holds the portion 121a is configured.
- the sensor mounting mechanism 130 sandwiches and holds the sensor 170 placed on the holder 132 between the inside of the skin contact portion 131 and the end portion 121a of the piston 121. Further, in this state, the first packing 135 and the second packing 136 are in close contact with the sensor 170 to close the gap between the sensor 170 and the skin contact portion 131 and the end portion 121a.
- FIG. 8A, 8B, 8C, 8D, 8E, 8F, 8G, 8H, and 8I are puncturing operations of the puncture needle type puncture device 100 FIG.
- FIG. 8A shows a state where only the puncture needle 160 is attached (this state is referred to as an initial state).
- the sensor 170 is mounted on the sensor mounting mechanism 130.
- the lancet part 111 of the puncture operation generating mechanism 110 is drawn into the housing 101 (in FIG. 8C, the puncture needle 160 is moved upward) to charge the puncture state. Specifically, the tension spring 111d of the lancet 111 is charged, and the packing 113 and the packing 125 are brought into close contact with each other.
- the skin 180 of the finger (palm, upper arm) is pressed against the skin contact portion 131 of the sensor mounting mechanism 130 to ensure the airtightness of the cylindrical inner space 140 inside the piston 121. Thereby, the airtightness in the decompression chamber 150 communicated by the communication hole 121c is also ensured.
- the skin 180 is kept pressed against the skin contact portion 131 and is continuously pressed (moved upward in FIG. 8D), so that the inside of the decompression chamber 150 is decompressed as shown by the shaded area in FIG. 8E. It becomes a state.
- the packing 125 tends to sink into the decompression chamber 150, since the packing 125 is fixed by the packing 113, the adhesiveness between the packings 125 and 113 is very large during decompression.
- FIG. 8F shows a punctured state.
- the packing 125 sinks into the decompression chamber 150, and the puncture needle 160 is moved by the force at that time. It also protrudes further due to inertial force.
- the protruding length of the puncture needle 160 can be adjusted by the depth adjustment mechanism by the rotation of the eject knob 115 as described above.
- the puncture needle 160 After puncturing the skin 180 with the puncture needle 160, blood exuded from the surface of the skin 180 is introduced into the sensor 170 as shown in FIG. 8G, and measurement starts. Moreover, the puncture needle 160 returns to the position before charge by the cam mechanism (not shown) of the lancet unit 111.
- the skin 180 pressed against the skin contact portion 131 is returned (moves downward in FIG. 8H), so that the inside of the decompression chamber 150 reaches atmospheric pressure. Return.
- the finger (palm, upper arm) is separated from the skin contact portion 131, and puncture and blood collection are completed.
- the sensor 170 is discharged.
- FIG. 9A, FIG. 9B, FIG. 9C, FIG. 9D, FIG. 9E and FIG. 9F are diagrams for explaining the decompression operation of the decompression blood collection mechanism 120.
- FIG. 9A shows a normal state (initial state).
- FIG. 9B shows a puncture standby state, in which the puncture needle 160 is charged in the puncture needle type puncture device 100 so that the puncture is possible, and the packing 113 fixed to the puncture needle holder 114 and the packing 125 are brought into close contact with each other. . More preferably, the packing 113 is pushed into the packing 125 and the packing 125 is slightly distorted. This effect is as follows in the early stage of decompression.
- the decompression chamber 150 is kept airtight only by the rod 112 and the packing 125.
- FIG. 9C shows a state where the cylinders 121 and 122 are depressurized.
- a force is generated to push into the decompression chamber 150.
- the packing 125 is more firmly attached to the packing 113 fixed to the puncture needle holder 114 and prevents air from leaking into the decompression chamber 150.
- the airtightness is not maintained by the packing 125 and the rod 112 but the inner wall of the decompression chamber of the packing 125 and the packing 113 are kept in close contact. Since the packing 125 and the packing 113 are in close contact, the airtightness is strong. The more the pressure is reduced, the better the airtightness.
- FIG. 9D shows a state during puncturing. As shown by the arrow in FIG. 9D, the force to push into the decompression chamber 150 of the packing 125 and the force of the spring (not shown) of the puncture needle type puncture device 100 work, and the puncture needle 160 is moved by these two forces. Move.
- FIG. 9E shows a state where the puncture needle 160 protrudes most. As shown in FIG. 9E, the puncture needle holder 114 slides only for the protruding distance of the puncture needle 160. This utilizes the inertial force when the puncture needle 160 and the puncture needle holder 114 move.
- FIG. 9F shows a state where the puncture needle 160 has returned to a predetermined position. As shown by the arrow in FIG. 9F, the puncture needle 160 returns to the initial position by the needle return mechanism of the puncture needle type puncture device 100 (cam mechanism using the pulling spring 111d: see FIG. 7 above).
- FIGS. 10A, 10B, and 10C are diagrams showing other configuration examples of the packing shape of the piston 121.
- FIG. 10A, 10B, and 10C are diagrams showing other configuration examples of the packing shape of the piston 121.
- 10A has the same configuration as the packing of the piston 121 of FIG. 7, and the piston 121 has a packing 123 on the outer peripheral portion and a packing 125 on the inner peripheral portion.
- the packing 123 and the packing 125 may be combined and configured with the same member to form a packing 125A.
- the packing 123 and the packing 125 may be combined and configured with the same member to form a packing 125B.
- the packing 125B is attached to the end of the piston 121B.
- the piston 121B has an advantage that it is easy to introduce because there is no stepped portion protruding in the outer diameter direction.
- the packing 125B needs to have a sufficient adhesion area with respect to the outer peripheral surface of the piston 121B so as not to drop off due to the force applied in the sliding direction.
- FIG. 11 11A and 11B (hereinafter collectively referred to as FIG. 11) and FIGS. 12A and 12B (hereinafter collectively referred to as FIG. 12) are puncture needle shake prevention guides attached to the piston 121.
- FIG. 12 11A and 11B (hereinafter collectively referred to as FIG. 11) and FIGS. 12A and 12B (hereinafter collectively referred to as FIG. 12) are puncture needle shake prevention guides attached to the piston 121.
- FIG. 11A shows a cross-sectional view parallel to the axial direction of the rod 112
- FIG. 11B shows a cross-sectional view perpendicular to the axial direction of the rod 112 at the puncture needle shake prevention guide 127 and its peripheral positions. Yes.
- the piston 121 includes a groove 121e along the sliding direction of the puncture needle 160.
- the grooves 121e are provided equally on the top, bottom, left and right of the inner peripheral surface of the piston 121.
- the puncture needle holder 114 is provided with front and rear protrusions 114a that are slidably fitted into the groove 121e.
- the groove 121e of the piston 121 and the convex portion 114a of the puncture needle holder 114 constitute a puncture needle shake prevention guide 127.
- the piston 121C includes an upper groove 121e and a lower groove 121f along the sliding direction of the puncture needle 160.
- the upper groove 121e is provided at a predetermined position (referred to as “upper” for convenience) on the inner peripheral surface of the piston 121C.
- the lower groove 121f has a notch shape and is provided at two predetermined positions (referred to as “down” for convenience) on the inner peripheral surface of the piston 121C.
- the upper groove 121e and the lower groove 121f are provided at positions where the inner peripheral surface of the piston 121C is divided into three.
- the puncture needle holder 114 includes a spring-shaped convex portion 114b that is slidably fitted into the upper groove 121e, and a protrusion 114c that is slidably fitted to the lower groove 121f.
- the upper groove 121e of the piston 121C and the spring-shaped convex portion 114b of the puncture needle holder 114 constitute an upper guide 127a for preventing puncture needle shake
- the lower groove 121f of the piston 121C and the projection 114c of the puncture needle holder 114 are The lower guide 127b for prevention is comprised.
- the upper guide 127a for preventing puncture needle shake prevents the puncture needle 160 from shaking during puncture and always generates a downward force (in FIG. 12B) by the spring-shaped convex portion 114b as shown by an arrow in FIG. 12B. .
- This downward force is uniformly applied to the plurality of puncture needle shake prevention lower guides 127b that are evenly arranged.
- the puncture needle 160 can be prevented from shaking during puncture.
- FIG. 13 and FIG. 14 are diagrams for explaining the shape of the packing 113 fixed to the puncture needle holder 114.
- FIG. 13 and FIG. 14 are diagrams for explaining the shape of the packing 113 fixed to the puncture needle holder 114.
- FIG. 13 is a view shown as a comparative example for explaining a modification of the shape of the packing 113 in FIG. 14, and has the same configuration as that in FIG.
- the side surface portion of the packing 113 and the side surface portion of the packing 125 are in close contact with each other, and the airtightness during decompression is maintained.
- the shape of the side surface portion of the packing 113 or the side surface portion of the packing 125 it is possible to more efficiently improve the adhesion force (improvement of airtightness) during decompression.
- the packing 113a fixed to the puncture needle holder 114 has a ring-shaped semicircular protrusion so as to go around the rod 112.
- illustration is abbreviate
- the packing 125a further has a ring-shaped semicircular protrusion that circulates around the rod 112 on the side surface facing the packing 113a.
- the adhesion between the packing 113a and the packing 125a can be further increased.
- the packing 113a may be made of the same material as the puncture needle holder 114 instead of an elastic body.
- the packing 113b fixed to the puncture needle holder 114 has a suction cup-shaped outer peripheral protrusion that adsorbs the side surface portion to the side surface portion of the packing 125. Since the packing 113b has a suction cup structure and the side surface portion of the packing 125 is flat, when the packing 113b and the packing 125 are in close contact with each other, the adhesion can be further increased even in a state where the decompression force is not large.
- the joint surface of the packing 125 with the packing 113b may not be an elastic body.
- the packing 113c fixed to the puncture needle holder 114 has a ring-shaped recess so as to go around the rod 112.
- the packing 125b has a ring-shaped convex portion so as to fit into the concave portion of the packing 113c.
- the convex portion of the packing 125b forms an end surface that slides on the rod 112, and is thicker than other portions.
- the packing 125b is provided with a convex portion on the back side surface portion similar to the ring-shaped convex portion that fits into the concave portion of the packing 113c. Since the contact point between the packing 113c and the rod 112 slides, it is slightly thicker than other parts.
- puncture needle type puncture device 100 has end 121a that forms part of sensor mounting mechanism 130 at one end and rod 112 of lancet 111 at the other end.
- a piston 121 having an end 121b that slidably supports the cylinder 121, a cylinder 122 that slidably accommodates the end 121b of the piston 121 therein, and an inner periphery of the end 121b of the piston 121; And a packing 125 for keeping the outer periphery airtight.
- the lancet system in the vacuum chamber. That is, in a system in which the puncture needle is movable and performs puncture, the puncture needle needs to be moved smoothly, and in order to place the puncture mechanism outside the decompression chamber, the decompression chamber and the movable portion are kept in a certain sealed state. Need to operate the needle.
- the relationship between the sealing force and the movable portion resistance is such that the movable portion resistance increases as the sealing force increases. In order to move the puncturable distance, a very large force is required for the lancet system.
- the puncture needle type puncture device 100 includes the reduced-pressure blood collection mechanism 120 (see FIG. 7 described above), and the reduced-pressure blood collection mechanism 120 and the puncture operation generation mechanism 110 (described above). 7 and FIG. 8), airtightness is maintained by the packing 125. That is, the puncture operation generating mechanism 110 is outside (external) the decompression generated by the decompression blood collection mechanism 120, and therefore the decompression volume is only the internal space 140 and decompression chamber 150 of the decompression blood collection mechanism 120, and the decompression portion is narrow. It is. For this reason, there exists a peculiar effect that decompression can be generated only by the operation which pushes skin contact part 131 to the device body side.
- a packing 125 designed so that a force works in the internal direction of the decompression chamber 150 at the time of decompression is provided at a portion connecting the decompression chamber 150 and the outside (lancet unit 111), and a force to sink inside is provided.
- the lancet unit 111 (see FIG. 7 described above) is used as a force for moving and a force for maintaining airtightness. By using this method, it is possible to puncture without making the puncture spring 111d (see FIG. 7 described above) mounted on the lancet unit 111 strong.
- the force of pushing in when a necessary amount of blood is obtained by collecting the pre-punctured portion against the skin contact portion 131 of the piston 121 and only pushing the portion into the apparatus main body side.
- the pressure adjustment to bring the pressure close to the atmospheric pressure by the action of weakening the pressure is performed in a series of actions, and the skin 180 and the device are separated from each other.
- FIG. 15 is a conceptual diagram for explaining a difference in configuration between the first embodiment and the second embodiment.
- FIG. 15A schematically shows a cross section of the puncture needle type puncture device 100 according to the first embodiment.
- 15B schematically shows a cross section of the puncture needle type puncture device 200 of the second embodiment.
- the reduced-pressure blood collection mechanism 120 is a direct acting system in which a [puncture mechanism] and a [decompression mechanism] are installed concentrically.
- puncture mechanism 220 and decompression mechanism 230 are installed in parallel.
- the puncture needle type puncture device 200 of the second embodiment can reduce the external dimensions (particularly the thickness dimension) of the device.
- FIG. 16 is a cross-sectional view showing a puncture device according to Embodiment 2 of the present invention.
- the same components as those in FIG. 7 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- a puncture needle type puncture device 200 is provided with a housing 201, a puncture operation generating mechanism 210 that is provided inside the housing 201 and that is outside the reduced-pressure blood collection mechanism and punctures the puncture needle 160, A puncture mechanism 220 that punctures skin through a held sensor 170, a decompression mechanism 230 that is installed in parallel to the puncture mechanism 220 and decompresses the space formed by the contacted skin, and a sensor mounting mechanism 130. Mainly composed.
- the puncture operation generating mechanism 210 is outside the puncture mechanism 220 and the decompression mechanism 230, and the lancet unit 111 that generates the puncture operation by the puncture needle 160, the rod 112 that transmits the puncture operation of the lancet unit 111 to the puncture needle 160, A knob 215 is provided that transmits the charge operation of the lancet unit 111 to the rod 112 and transmits the decompression generation operation by the decompression mechanism 230 to the rod 211.
- the lancet section 111 has a base plate 111a, and a plunger 111b, a lever 111c, and a tension spring 111d are attached to the base plate 111a.
- the rod 112 is connected to the plunger 111b and can slide within a predetermined range in a puncture mechanism cylinder 241 (described later) of the puncture mechanism 220 in conjunction with the operation of the plunger 111b.
- the plunger 111b returns to the natural state by the rotation of the lever 111c urged by the pulling spring 111d.
- the knob 215 is formed hollow so as to cover the entire lancet 111.
- One end 215a of the knob 215 is engaged with the protrusion 111e of the plunger 111b when the pulling spring 111d is charged, and the lancet 111 is pulled out of the housing 201 (in FIG. 16, the puncture needle 160 is moved in the right direction). ) And charge to the puncture ready state.
- the other end 215b of the knob 215 is connected to the rod 211, and when the pressure is reduced, the rod 211 is pushed into the housing 201 (in FIG. 16, the rod 211 is moved to the left), and the pressure reduction mechanism 230 generates a pressure reduction.
- the end 215b of the knob 215 moves in a direction in which the end 215a is separated from the protrusion 111e of the plunger 111b in the operation at the time of pressure reduction. Further, the end 215 b of the knob 215 does not contact the lancet 111 with the inside of the knob 215. For this reason, the charging operation is not affected.
- the puncture operation generating mechanism 210 is provided in the puncture mechanism 220, and includes a packing 113 provided at the end 112a of the rod 112 and a puncture needle holder 114 attached to the packing 113 and mounting the puncture needle 160. .
- the puncture mechanism 220 and the decompression mechanism 230 are decompression mechanisms based on the same principle as the decompression blood collection mechanism 120 described in FIG.
- the reduced-pressure blood collection mechanism 120 (FIG. 7) is divided into [puncture mechanism] and [decompression mechanism], and the puncture mechanism 220 and the decompression mechanism 230 are installed in parallel.
- the puncture mechanism 220 has a puncture mechanism side cylinder 241 on the sensor mounting mechanism 130 side inside the housing 201.
- the decompression mechanism 230 includes a decompression mechanism cylinder 242 provided in parallel with the puncture mechanism cylinder 241.
- puncture mechanism cylinder 241 and decompression mechanism cylinder 242 are integrally formed as cylinder block 240.
- the puncture mechanism cylinder 241 and the decompression mechanism cylinder 242 may be provided in parallel within the housing 201 or may be separate.
- the puncture operation generating mechanism 210 operates the puncture needle in the puncture mechanism cylinder 241.
- the puncture mechanism cylinder 241 is generated by an end 241a that forms a part of the sensor mounting mechanism 130 at one end, an end 241b that slidably supports the rod 112 of the lancet 111, and a decompression mechanism 230.
- a communication hole 241c for transmitting the reduced pressure into the puncture mechanism cylinder 241 is provided.
- a second packing 136 that seals between the sensor 170 at the time of puncturing is attached to the end 241a.
- the second packing 136 keeps the airtightness of the cylindrical inner space 140 closed by the contacted skin.
- a packing 125 that keeps the airtightness of the outer periphery of the rod 112 is attached to the opening and inner peripheral portion of the end portion 241b.
- the communication hole 241 c includes a sealed space composed of a cylindrical inner peripheral surface of the end portion 241 b, a packing 125 that keeps the air tightness of the outer periphery of the rod 112, and a packing 113 provided at the end portion 112 a of the rod 112, and a decompression chamber 250 of the decompression mechanism 230. (See FIGS. 17C and 17D).
- the communication hole 241 c is always sealed by the packing 125 and the packing 113 and opened to a position communicating with the decompression chamber 250 regardless of the sliding state of the rod 112. For this reason, the opening position of the communication hole 241c is a position between the packing 125 and the packing 113 in a natural state. Note that the packing 125 is in close contact with the packing 113 during decompression, and maintains the decompressed state more reliably.
- the puncture mechanism 220 includes a spring 126 that urges the cylinder block 240 to always return to the original state.
- the decompression mechanism 230 generates decompression in the decompression mechanism cylinder 242 by the movement of the rod 211 that is interlocked with the decompression generation operation by pushing the knob 215.
- the decompression mechanism cylinder 242 has an end 242a that forms a part of the sensor mounting mechanism 130 at one end, and an end 242b that slidably supports the rod 211 that is interlocked with the pushing of the knob 215 at the other end.
- the end 242a has an escape hole (not shown) for extracting air from the decompression mechanism cylinder 242 during decompression.
- the end 211 a of the rod 211 has a disc shape, and the disc-shaped end 211 a is in the pressure reducing mechanism cylinder 242 and slides according to the operation of the rod 211.
- a packing 212 is attached to the outer periphery of the end 211a.
- a packing 213 that keeps the airtightness between the decompression chamber 250 and the outer periphery of the rod 211 is attached to the opening and inner periphery of the end 242b.
- Decompression occurs in the sealed space composed of the cylindrical inner peripheral surface of the pressure reducing mechanism cylinder 242 and the packing 213 attached to the inner peripheral portion of the end portion 242b and the packing 212 attached to the outer peripheral portion of the end portion 211a of the rod 211.
- a decompression chamber 250 is formed.
- the communication hole 241c When viewed from the decompression mechanism 230 side, the communication hole 241c is always opened at a position communicating with the decompression chamber 250 sealed by the packing 212 and the packing 213 regardless of the sliding state of the end 211a of the rod 211. . For this reason, the opening position of the communication hole 241c is a position between the packing 212 and the packing 213 in a natural state.
- FIG. 17A, FIG. 17B, FIG. 17C, FIG. 17D, and FIG. 17E are diagrams for explaining the puncturing operation of the puncture needle type puncture device 200.
- the sensor 170 is mounted on the sensor mounting mechanism 130.
- the lancet 111 of the puncture operation generating mechanism 210 is pulled out of the housing 201 (in FIG. 17B, the puncture needle 160 is moved to the right) to charge the puncture state.
- the end 215a of the knob 215 is engaged with the protrusion 111e of the plunger 111b, and the lancet 111 is pulled out of the housing 201 to charge the pulling spring 111d of the lancet 111.
- the packing 113 and the packing 125 are brought into close contact with each other.
- the skin 180 of the finger (palm, upper arm) is pressed against the skin contact portion 131 of the sensor mounting mechanism 130, and the cylindrical inner space 140 inside the puncture mechanism cylinder 241 is secured.
- the airtightness in the sealed space which consists of the packing 125 which maintains the airtightness of the cylindrical inner peripheral surface of the end 241b and the outer periphery of the rod 112 and the packing 113 provided on the end 112a of the rod 112 is also ensured.
- the user pushes the knob 215 into the housing 201 by, for example, a thumb pressing operation (the rod 211 is moved leftward in FIG. 17C).
- the end 211a of the rod 211 slides in the decompression mechanism cylinder 242 to decompress the decompression chamber 250 in the decompression mechanism cylinder 242.
- the decompression chamber 250 communicates with the puncture mechanism cylinder 241 through the communication hole 241c.
- the sealed space formed by the cylindrical inner peripheral surface of the end portion 241b of the puncture mechanism cylinder 241 and the packing 125 and the packing 113 is also decompressed. By this decompression, the packing 125 and the packing 113 are more closely attached.
- the sealed space in the puncture mechanism cylinder 241 is depressurized, the cylindrical internal space 140 is also depressurized.
- the sealed inner space formed by the cylindrical inner peripheral surface of the end portion 241b of the puncture mechanism cylinder 241 and the packing 125 and the packing 113, and the cylindrical inner space 140 communicating with the sealed space form a decompression target space of the puncture mechanism 220.
- the decompression mechanism 230 decompresses the sealed space through the communication hole 241 c of the decompression chamber 250 and simultaneously decompresses the cylindrical internal space 140.
- the sealed space may be referred to as a pressure reduction target space in a narrow sense.
- FIG. 17D shows a puncturing operation.
- the packing 125 sinks into the sealed space in the puncture mechanism cylinder 241 and the puncture needle 160 is moved by the force at that time. It also protrudes further due to inertial force.
- the puncture needle 160 After puncturing the skin 180 with the puncture needle 160, blood exuded from the surface of the skin 180 is introduced into the sensor 170 as shown in FIG. 17E, and measurement starts. Moreover, the puncture needle 160 returns to the position before charge by the cam mechanism (not shown) of the lancet unit 111.
- the puncture needle type puncture device 200 of the present embodiment has a shape that is small and lightweight and easy to grasp.
- the user can generate a reduced pressure by moving the thumb up and down.
- the operation of generating reduced pressure by the vertical movement of the thumb is intuitive and very easy to operate.
- the puncture needle type puncture device 200 is provided with the puncture mechanism 220 and the decompression mechanism 230 in parallel, the external dimensions (particularly the thickness dimension) of the apparatus can be reduced.
- the third embodiment is an example provided with a puncture needle attaching / detaching mechanism.
- FIG. 18A is a cross-sectional view showing a puncture device according to Embodiment 3 of the present invention
- FIG. 18B is a side view seen from the direction of the arrow in FIG. 18A
- 19A is a cross-sectional view showing the puncture device during the detaching operation
- FIG. 19B is a side view seen from the direction of the arrow in FIG. 19A.
- the same components as those in FIG. 16 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- a puncture needle type puncture device 300 is provided inside a housing 201, and is a puncture operation generating mechanism 210 that is outside the reduced-pressure blood collection mechanism and punctures the puncture needle 160. And a puncture needle attaching / detaching mechanism 350 for attaching / detaching the needle 160.
- the puncture operation generating mechanism 210 has a knob 315 that transmits the charging operation of the lancet unit 111 to the rod 112 and also transmits the decompression generating operation by the decompression mechanism 230 to the rod 211.
- the knob 315 is formed to be hollow so as to cover the entire lancet portion 111 and accommodates the lancet portion 111 in the space portion.
- the puncture needle attaching / detaching mechanism 350 is realized by the knob 315 having the following components.
- the knob 315 has a bottomed cylindrical shape, and is configured to be rotatable about a cylindrical central axis.
- a semicircular opening 315b and an arcuate opening 315c are opened in a cylindrical bottom 315a.
- An end 316a of a rod 316 is fixed to the bottom 315a in a direction from the arbitrary position of the opening 315b toward the central axis.
- the rod 316 has an end 316a fixed to the bottom 315a, and the other end 316b contacts the end of the lancet 111 when the puncture needle is attached or detached.
- the knob 315 includes a rod 316 that is spaced apart from the central axis by a predetermined distance and parallel to the central axis. As shown in FIG. 18B, the end 316b of the rod 316 is rotated away from the end of the lancet 111 when not attached / detached, and is rotated when detached and attached as shown in FIG. 19B. Abut.
- the rod 211 is accommodated in the arc-shaped opening 315b so that the end surface 211a of the rod 211 faces.
- the rotation range of the knob 315 is restricted. Further, the status of the non-desorption / desorption of the puncture needle can be confirmed by the position of the end surface 211a of the rod 211 exposed at the opening 315b.
- the end surface 211a of the rod 211 may be colored in a more conspicuous color.
- the user does not rotate the knob 315 when the puncture needle is not detached.
- the end surface 211 a of the rod 211 is located away from the end of the lancet 111, and therefore the lancet 111 is not affected by the rod 211. This is the same as the puncturing operation of the puncture needle type puncture device 200 of the second embodiment (see FIG. 17).
- the user rotates the knob 315 when the puncture needle is attached or detached. Specifically, the user rotates the knob 315 until the end surface 211a of the rod 211 reaches the other end from one end of the arcuate opening 315b. As shown in FIG. 19B, the end 316 b of the rod 316 abuts on the end of the lancet 111.
- the puncture needle type puncture device 300 includes the puncture needle detachment mechanism 350 constituted by the knob 315 and the rod 316, so that the puncture needle 160 can be attached and detached very much. Has the effect of facilitating.
- the puncture needle attaching / detaching mechanism 350 can easily set non-detachment / detachment of the puncture needle only by the user turning the knob 315.
- the configuration in which the end 316b of the rod 316 is brought into contact with the end of the lancet 111 by the rotation of the knob 315 has been described.
- the rod 316 is slid onto the end of the lancet 111. It may be configured.
- the fourth embodiment is a configuration example in which the sensor holding unit is detachable from the main body.
- FIG. 20A is a cross-sectional view showing a puncture device according to Embodiment 4 of the present invention
- FIG. 20B is a cross-sectional view showing the puncture device during a detaching operation.
- the same components as those in FIG. 16 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- a puncture needle type puncture device 400 is provided inside a housing 401 and the housing 401, and is a puncture operation generating mechanism that punctures the puncture needle 160 by itself outside the reduced-pressure blood collection mechanism.
- a puncture mechanism 420 that punctures skin through a held sensor 170
- a decompression mechanism 230 that is installed in parallel to the puncture mechanism 220 and decompresses the space formed by the skin that comes into contact with
- a housing 401 It is mainly composed of a detachable sensor mounting mechanism 430.
- the puncture needle type puncture device 400 is more compact than the puncture needle type puncture device 200 shown in FIG. Shorter than 16). For convenience of explanation, the same numbers are assigned.
- the sensor mounting mechanism 430 has a mounting portion 431 that is detachably attached to the puncture mechanism 420 in addition to the configuration of the sensor mounting mechanism 130 of FIG.
- the attachment portion 431 has a cylindrical shape that constitutes a half of the puncture mechanism cylinder 241 of the puncture mechanism 220 of FIG. 16 (the left half in FIGS. 20A and 20B).
- the attachment portion 431 has a step structure in which the cylindrical opening 431a is thin.
- the puncture mechanism 420 has an attachment portion 421 that engages with the attachment portion 431 of the sensor mounting mechanism 430.
- a packing 422 is mounted on the outer peripheral surface of the cylinder facing the opening 431 a of the mounting portion 431 of the sensor mounting mechanism 430. The packing 422 keeps the sensor mounting mechanism 430 and the puncture mechanism 420 airtight.
- the sensor mounting mechanism 430 can be detached from the housing 401 as shown in FIG. 20A.
- the sensor mounting mechanism 430 can integrate the sensor mounting mechanism 430 and the housing 401 by engaging the mounting portion 431 with the mounting portion 421 of the puncture mechanism 420.
- the puncture mechanism 420 has the same function as the puncture mechanism 220 of the puncture needle type puncture device 200 of FIG.
- the puncture needle type puncture device 400 is configured such that the sensor mounting mechanism 430 can be attached to and detached from the housing 401, and thus the following effects can be obtained. (1) Simplification of the puncture needle attaching / detaching mechanism can be achieved. (2) The maintainability when blood adheres to the sensor mounting mechanism 430 can be improved. (3) The device can be made compact.
- the packing 422 is attached on the outer peripheral surface of the cylinder facing the opening 431a of the attachment portion 431 of the sensor attachment mechanism 430.
- the sensor attachment mechanism 430 is attached.
- a packing may be attached to the inner peripheral surface of the opening 431a.
- the attachment surface of the attachment portion 421 of the puncture mechanism 420 for attaching the attachment portion 431 of the sensor attachment mechanism 430 and the attachment / detachment surface of the attachment portion 431 of the sensor attachment mechanism 430 capable of closely contacting the attachment surface A configuration in which a convex portion is provided may be employed.
- the mounting surface and the detachable surface can be brought into close contact with each other, and the sensor mounting mechanism 430 and the puncture mechanism 420 can be kept airtight.
- the packing may be used in combination.
- Embodiment 5 will be described taking the sensor mounting mechanism 130 of the puncture needle type puncture device 100 (FIG. 7) of Embodiment 1 as an example. The same applies to the sensor mounting mechanism 430 of the fourth embodiment.
- FIG. 21 are top views showing the configuration of the sensor mounting mechanism 130 of FIG.
- FIG. 21 shows a state in which the skin contact portion 131 (FIG. 21A), the sensor holding portion 132 (FIG. 21B), and the end portion 121a (FIG. 21C) are developed on a plane.
- the sensor mounting mechanism 130 includes a skin contact portion 131, a sensor holding portion 132 for holding the sensor 170 in a predetermined position, and an end of a piston 121 that is a main body portion of the sensor mounting mechanism 130.
- a first spring 133 that urges the part 121a, the skin contact part 131, and the sensor holding part 132 with a first elastic strength; and a second spring that urges the sensor holding part 132 and the end part 121a with a second elastic strength.
- a spring 134 a first packing 135 that seals between the skin contact portion 131 and the sensor 170 during puncturing, a second packing 136 that seals between the end portion 121a and the sensor 170 during puncturing, and a skin contact portion 131, the sensor holding part 132, and the movable part holding
- pillar 137 (FIG. 21A) which moves and hold
- the movable part holding column 137 (FIG. 21A) is a support part that slidably protrudes from the housing end part 121a, and is integral with the rod 118 (FIG. 7).
- the end 121a and the sensor holding part 132 have through holes 138 (FIGS. 21B and 21C) that slidably pass through the movable part holding column 137 (that is, the rod 118). In this through-hole 138, the movable part holding column 137 (rod 118) slides.
- a skin contact portion 131 shown in FIG. 21A is attached to the tip of the movable portion holding support 137 (rod 118).
- the end 121a of the piston 121 constitutes a part of the sensor mounting mechanism 130.
- the end of the skin contact portion 131 is connected to the protruding end of the rod 118 protruding from the main body side.
- the rod 118 is slid toward the main body with the end between the skin contact portion 131 and the sensor holding portion 132 sandwiched by the first spring 133 and the end between the sensor holding portion 132 and the end portion 121a sandwiched by the second spring 134. Hold as possible.
- the skin contact portion 131 is made of a soft resin (for example, rubber) in order to improve the adhesion with the skin.
- the spring 126 that urges the piston 121 urges the piston 121 to return to the original state with the third stretch strength.
- the expansion / contraction strength of the first spring 133, the second spring 134, and the spring 126 is set as follows.
- the skin contact portion 131 has an opening 131a for puncturing, and a ring-shaped first packing 135 is attached so as to surround the opening 131a.
- 21B includes a connector 132a for mounting the sensor 170, a sensor insertion guide 132b for inserting the sensor 170 and guiding it to the connector 132a, and a part of the sensor holding portion 132 in the sensor insertion direction. And a notch 132c.
- the sensor insertion guide 132b has a function of smoothly attaching and detaching the sensor 170 and preventing blood after measurement from adhering to the measuring instrument.
- an opening 132d for puncturing is provided at a substantially central portion of the sensor insertion guide 132b.
- the notch 132c is a defect that prevents blood adhering to the sensor 170 from being attached to the inside of the measuring instrument after the measurement is completed.
- 21C has an opening 121b for puncturing, and a ring-shaped second packing 136 is attached so as to surround the opening 121b.
- FIG. 22 is a cross-sectional view seen from the side of the sensor holding part 132 and shows a state in which the sensor holding part 132 holds the sensor 170.
- the sensor holding part 132 has an upper surface part 132e and a lower surface part 132f for sandwiching the sensor 170.
- the lower surface portion 132f is formed as thin as possible.
- the upper surface portion 132e is formed with an appropriate thickness that can reinforce the reduction in rigidity due to the lower surface portion 132f being formed thin.
- FIG. 23 is a plan view of the state in which the sensor 170 is held by the sensor holding unit 132 as viewed from above.
- FIG. 23 shows a state where the lower end 121a of the sensor 170 is seen through.
- the sensor 170 is inserted from the notch 132c (see FIG. 21B) to the connector 132a along the sensor insertion guide 132b, and is attached to the connector 132a. At this time, the sensor 170 moves while being sandwiched between the upper surface portion 132e and the lower surface portion 132f of the sensor holding portion 132. This operation is performed by the user holding one end of the sensor 170 in his / her hand.
- 24A to 24C are cross-sectional views for explaining the operation of the sensor mounting mechanism 130 during puncturing.
- 24A to 24C show the puncture operation generating mechanism 110 and the sensor mounting mechanism 130 of FIG. 7 in a simplified manner.
- the sensor 170 is mounted on the sensor mounting mechanism 130. Specifically, after confirming that the sensor mounting mechanism 130 is in the initial state, the user holds one end of the sensor 170 in his hand and touches the other end of the sensor 170 against the notch 132c (see FIG. 21B). And a user inserts the other end of the sensor 170 along the sensor insertion guide 132b from the notch part 132c. One end of the sensor 170 exists outside the measuring instrument, and only the reaction part of the sensor 170 is inserted.
- the sensor 170 is inserted into the sensor mounting mechanism 130 by inserting the other end of the sensor 170 until it contacts the connector 132a (see FIG. 22). Completion of insertion is confirmed by contact between the other end of the sensor 170 and the connector 132a.
- the skin 180 such as a finger (palm, upper arm) is brought into contact with the skin contact portion 131 of the sensor mounting mechanism 130, and in the arrow direction (upward in FIG. 24B). Push up.
- the stretching strength of the first spring 133, the second spring 134, and the spring 126 is: spring 126 (third stretching strength)> second spring 134 (second stretching strength) ⁇ first spring 133 (first stretching strength). It is. Therefore, the first spring 133 (first elastic strength), the second spring 134 (second elastic strength), and the spring 126 (third elastic strength) contract in this order.
- the expansion / contraction strength of each spring is set such that the spring 126 (third expansion / contraction strength) starts to contract after the first spring 133 (first expansion / contraction strength) and the second spring 134 (second expansion / contraction strength) are almost contracted. .
- the skin 180 is brought into contact with the sensor 170 earlier, coupled with the fact that the lower surface portion 132f of the sensor holding portion 132 is thin. become. Since the sensor 170 and the skin 180 are brought into contact with each other earlier, airtightness can be ensured more quickly and reliably, and the puncture start time can be shortened and the operability can be improved.
- the skin contact part 131 and the end part 121a sandwich the sensor 170 held by the sensor holding part 132 up and down.
- the skin contact portion 131 and the end portion 121a are provided with a first packing 135 and a second packing 136, and the first packing 135, the second packing 136, and the sensor 170 are brought into close contact with each other according to the sandwiching operation.
- this portion is tightly sealed.
- the skin 180 in contact with the skin contact portion 131 closes the opening 131 a of the skin contact portion 131, thereby ensuring airtightness of the cylindrical internal space 140 inside the piston 121.
- the airtightness in the decompression chamber 150 communicated by the communication hole 121c is also ensured.
- the skin contact portion 131 is further pushed in the direction of the arrow (upward in FIG. 24C).
- the volume of the decompression chamber 150 is expanded, a negative pressure is generated in the internal space 140, and the skin 180 can be raised.
- FIG. 25 and 26 are diagrams showing another configuration example of the sensor insertion part of the sensor holding part 132.
- FIG. 21 The same components as those in FIG. 21 are denoted by the same reference numerals, and description of overlapping portions is omitted.
- the sensor holding portion 132A further includes a guide inlet portion 132g that guides the sensor 170 so that the sensor 170 can be easily inserted.
- the guide inlet portion 132g is a straight end portion, but may be a curved end portion.
- the guide inlet portion 132g is formed wide so that the sensor 170 can be easily inserted. For example, an angle corresponding to the outer periphery of the virtual circle 175 indicated by a broken line in FIG.
- the guide inlet portion 132g spreads at a certain angle toward the outside. This makes the sensor 170 easier to insert.
- the certain angle is an angle corresponding to the tangent to the outer periphery of the virtual circle 175.
- the size of the guide inlet portion 132g is preferably set so that the blood adhering portion does not shake until the blood adhering portion comes out of the measuring instrument when the sensor 170 is removed from the sensor holding portion 132A.
- the sensor 170 has a puncture hole 171 and an analysis window 172 through which blood penetrates. During puncture, blood may scatter around these points.
- the sensor holding part 132B has a convex part 132h in which the sensor insertion guide 132b including the guide inlet part 132g protrudes outward from the sensor holding part 132B main body.
- the sensor mounting mechanism 130 includes the skin contact portion 131, the sensor holding portion 132 that holds the sensor 170, and the end portion 121a that is the main body portion of the sensor mounting mechanism 130.
- a first spring 133 that urges between the skin contact portion 131 and the sensor holding portion 132 with the first stretch strength, and between the sensor holding portion 132 and the end portion 121a with the second stretch strength.
- a second spring 134 that energizes, a first packing 135 that seals between the skin contact portion 131 and the sensor 170 during puncturing, and a second packing 136 that seals between the end 121a and the sensor 170 during puncturing.
- the skin 180 is brought into contact with the skin contact portion 131, and the skin contact portion 131 is pushed up against the urging force of the first spring 133 and the second spring 134. Accordingly, the skin contact portion 131, the sensor holding portion 132, and the end portion 121a are in close contact with each other via the first packing 135 and the second packing 136, and the internal space 140 is sealed. Thereafter, the skin contact portion 131 is further pushed up against the urging force of the spring 126, whereby the piston 121 moves into the housing, and the internal space 140 becomes a decompressed space.
- the decompression space is only the internal space 140 that communicates with the space surrounded by the first packing 135 and the second packing 136 of the sensor mounting mechanism 130.
- the volume of the space itself is extremely small compared to the conventional example. For this reason, all the faults of the conventional example can be eliminated.
- the decompression space is small, a desired decompression can be obtained by a single operation of pushing the skin contact portion 131. Since the operation for depressurization is performed only once, operability and maintainability can be improved. In addition, since the failure to release the atmospheric pressure at the reduced pressure is eliminated, it is possible to prevent blood scattering due to this. Contamination of the device and the risk of infection due to this can be eliminated.
- the sensor mounting mechanism 130 can easily mount and remove the sensor 170, and can improve the operability for puncture.
- FIG. 6 is cross-sectional views showing the blood analyzer according to Embodiment 6 of the present invention.
- the present embodiment is an example applied to an electric negative pressure pump type blood analyzer.
- a laser puncture device 510 is applied instead of the puncture operation generating mechanism 110 of FIG.
- blood analyzer 500 is mainly composed of laser puncturing device 510 that punctures skin without contact with laser light, negative pressure pump 520, and sensor mounting mechanism 130.
- the laser puncture device 510 has a laser rod that emits laser light, a lens 512 that condenses the laser light for puncture, and an end 513 that faces the sensor 170.
- a ring-shaped second packing 136 is attached to the end 513 so as to surround the laser optical axis.
- the negative pressure pump 520 sucks air in the internal space 140 via the communication path 521 and depressurizes the internal space 140.
- the sensor 170 is mounted on the sensor mounting mechanism 130.
- the mounting of the sensor 170 on the sensor mounting mechanism 130 is completed. Completion of insertion is confirmed by contact between the other end of the sensor 170 and the connector 132a.
- the skin 180 of the finger (palm, upper arm) is brought into contact with the skin contact portion 131 of the sensor mounting mechanism 130 and pushed up.
- the skin contact portion 131 and the end portion 513 sandwich the sensor 170 held by the sensor holding portion 132 up and down.
- the skin contact part 131 and the end part 513 are provided with a first packing 135 and a second packing 136, and the first packing 135, the second packing 136, and the sensor 170 are brought into close contact with each other according to the sandwiching operation.
- the skin 180 that is in contact with the skin contact portion 131 closes the opening 131 a of the skin contact portion 131.
- the negative pressure pump 520 generates a negative pressure in the internal space 140 and raises the skin 180.
- the sensor mounting mechanism 130 can be applied to the blood analyzer 500 of the electric negative pressure pump system, and the same effect as that of the fifth embodiment can be obtained.
- a needle puncture device that performs puncture with a puncture needle is used as the puncture means, but the present invention is not limited to this, and a laser emitting device can also be used as the puncture means.
- the name “puncture device” is used. However, this is for convenience of explanation, and it is needless to say that the device may be a puncture device, a puncture device, or the like.
- each part constituting the puncture device for example, the kind of packing, the number thereof, and the connection method may be any.
- a decompression mechanism, a puncture device, a blood analyzer and a sensor mounting mechanism include a puncture needle for exchanging a puncture device used for blood collection and the like, and the puncture needle is movably accommodated therein, and It is useful as a disposable puncture device having a puncture needle holder that can be replaced simultaneously with the puncture needle.
- Puncture needle type puncture device 101 201, 401 Housing 110, 110A, 110B, 110C Puncturing motion generating mechanism 111 Lancet part 112, 118, 211, 316 Rod 113, 123, 124, 125, 125A, 125B, 134, 212, 213, 422 Packing 114 Puncture needle holder 120 Depressurized blood collection mechanism 121, 121A, 121B Piston 122 Cylinder 130, 430 Sensor mounting mechanism 131 Skin contact portion 150, 250 Decompression chamber 160 Puncture needle 170 Sensor 210 Puncture operation Generation mechanism 215, 315 Knob 220, 420 Puncture mechanism 230 Pressure reduction mechanism 240 Cylinder block 241 Puncture mechanism cylinder 242 Pressure reduction mechanism cylinder 241a, 241b, 242a, 242b, 316 , 316b ends 241c communication hole 315a bottom 315b, 315c, 431a opening 350 needle desorption mechanism 421, 431 mounting portion 500
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Abstract
Description
前記穿刺手段を動作させる穿刺機構と、底部を有するシリンダと、前記シリンダ内部にあって該シリンダの軸に沿って摺動するピストンと、前記ピストンの端部と前記シリンダ内周とを密閉する第1密閉手段と、前記シリンダの開口部と前記ピストンの外周とを密閉する第2密閉手段と、前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室と、前記気室と前記穿刺機構の減圧対象空間とを繋ぐ連通孔とからなる減圧機構と、を備える構成を採る。
まず、本発明の減圧採血機構の原理について説明する。
実施の形態1乃至4は、[減圧採血機構]について説明する。
図15は、実施の形態1と実施の形態2との構成の差異を説明する概念図であり、図15Aは、実施の形態1の穿刺針方式穿刺器具100の断面を模式的に示し、図15Bは、実施の形態2の穿刺針方式穿刺器具200の断面を模式的に示す。
穿刺機構220は、穿刺機構シリンダ241内において、穿刺動作発生機構210が穿刺針を動作させる。
減圧機構230は、減圧機構シリンダ242内において、ノブ215の押し込みによる減圧発生動作に連動するロッド211の動きにより減圧を発生させる。
実施の形態3は、穿刺針の脱着機構を備える例である。
実施の形態4は、センサ保持部が本体から脱着可能な構成例である。
実施の形態5及び6は、センサ装着機構について説明する。
図21Aに示すように、皮膚当接部131は、穿刺のための開口部131aを有し、開口部131aを取り囲むようにリング状の第1パッキン135が取り付けられる。
図27A及び図27Bは、本発明の実施の形態6における血液分析装置を示す断面図である。本実施の形態は、電動負圧ポンプ方式の血液分析装置に適用した例である。また、前記図7の穿刺動作発生機構110に代えて、レーザ穿刺装置510を適用する。図7と同一構成部分には同一符号を付して重複箇所の説明を省略する。
101,201,401 ハウジング
110,110A,110B,110C 穿刺動作発生機構
111 ランセット部
112,118,211,316 ロッド
113,123,124,125,125A,125B,134,212,213,422 パッキン
114 穿刺針ホルダ
120 減圧採血機構
121,121A,121B ピストン
122 シリンダ
130,430 センサ装着機構
131 皮膚当接部
150,250 減圧室
160 穿刺針
170 センサ
210 穿刺動作発生機構
215,315 ノブ
220,420 穿刺機構
230 減圧機構
240 シリンダブロック
241 穿刺機構シリンダ
242 減圧機構シリンダ
241a,241b,242a,242b,316a,316b 端部
241c 連通孔
315a 底部
315b,315c,431a 開口部
350 穿刺針の脱着機構
421,431 取付部
500 血液分析装置
Claims (39)
- 底部を有するシリンダと、
前記底部から突出する第1端部と前記シリンダ内部にあって該シリンダの軸に沿って摺動する第2端部とを有するピストンと、
前記底部と前記ピストンの外周とを密閉する第1密閉手段と、
前記第2端部と前記シリンダ内周とを密閉する第2密閉手段と、
前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室とを備え、
前記ピストンは、前記気室と前記第1端部に開口する中空空間とを繋ぐ連通孔を有する減圧機構。 - 前記第1密閉手段又は第2密閉手段は、パッキンである請求項1記載の減圧機構。
- 前記第1密閉手段は、前記底部が前記ピストンの外周に緊密に接触する凸部である請求項1記載の減圧機構。
- 前記第2密閉手段は、前記第2端部が前記シリンダの内周に緊密に接触する凸部である請求項1記載の減圧機構。
- 筐体と、
前記筐体内に設けられ、皮膚を穿刺する穿刺手段と、
前記穿刺手段を動作させる穿刺機構と、
底部を有するシリンダと、
前記底部から突出する第1端部と前記シリンダ内部にあって該シリンダの軸に沿って摺動する第2端部とを有するピストンと、
前記底部と前記ピストンの外周とを密閉する第1密閉手段と、
前記第2端部と前記シリンダ内周とを密閉する第2密閉手段と、
前記ピストンと前記穿刺機構との連結部に、前記第1端部に開口する中空空間と前記穿刺機構とを密閉する第3密閉手段と、
前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室とを備え、
前記ピストンは、前記気室と前記中空空間とを繋ぐ連通孔を有する穿刺装置。 - 前記第1密閉手段、第2密閉手段、又は第3密閉手段は、パッキンである請求項5記載の穿刺装置。
- 前記第1密閉手段は、前記底部が前記ピストンの外周に緊密に接触する凸部である請求項5記載の穿刺装置。
- 前記第2密閉手段は、前記第2端部が前記シリンダの内周に緊密に接触する凸部である請求項5記載の穿刺装置。
- 前記第1端部は、皮膚に当接可能な当接部である請求項5記載の穿刺装置。
- 前記穿刺手段は、レーザ光により皮膚を穿刺するレーザ発射装置である請求項5記載の穿刺装置。
- 前記穿刺手段は、穿刺針により皮膚を穿刺する針穿刺装置である請求項5記載の穿刺装置。
- 前記穿刺針を保持する穿刺針ホルダと、
前記穿刺機構の穿刺動作により、前記穿刺針ホルダを前記ピストン内で摺動させるロッドとを備え、
前記第3密閉手段は、前記ロッドを気密に保ちながら摺動可能に連通する請求項11記載の穿刺装置。 - 前記第3密閉手段は、パッキンであり、減圧時、前記穿刺針ホルダに密着する請求項12記載の穿刺装置。
- 前記第3密閉手段は、弾性変形可能なパッキンであり、減圧時、前記穿刺針ホルダを包み込むように変形する請求項12記載の穿刺装置。
- 前記第3密閉手段は、パッキンであり、
前記パッキン又は前記穿刺針ホルダは、互いに密着する面にリング状の凸部を有する請求項12記載の穿刺装置。 - 前記第3密閉手段は、パッキンであり、
前記穿刺針ホルダは、前記パッキンに密着する面に吸盤構造を有する請求項12記載の穿刺装置。 - 筐体と、
前記筐体内に設けられ、皮膚を穿刺する穿刺手段と、
前記穿刺手段を動作させる穿刺機構と、
底部を有するシリンダと、前記シリンダ内部にあって該シリンダの軸に沿って摺動するピストンと、前記ピストンの端部と前記シリンダ内周とを密閉する第1密閉手段と、前記シリンダの開口部と前記ピストンの外周とを密閉する第2密閉手段と、前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室と、前記気室と前記穿刺機構の減圧対象空間とを繋ぐ連通孔とからなる減圧機構と、
を備える穿刺装置。 - 前記穿刺機構と前記減圧機構は、並列に設置される請求項17記載の穿刺装置。
- 前記穿刺機構を前記筐体外方向に移動させて、前記穿刺手段を前記筐体外部に露出する脱着機構を備える請求項17記載の穿刺装置。
- 穿刺により滲出した血液を、センサにより分析する血液分析装置であって、
筐体と、
前記筐体内に設けられ、皮膚を穿刺する穿刺手段と、
前記穿刺手段を動作させる穿刺機構と、
底部を有するシリンダと、
前記底部から突出する第1端部と前記シリンダ内部にあって該シリンダの軸に沿って摺動する第2端部とを有するピストンと、
前記底部と前記ピストンの外周とを密閉する第1密閉手段と、
前記第2端部と前記シリンダ内周とを密閉する第2密閉手段と、
前記ピストンと前記穿刺機構との連結部に、前記第1端部に開口する中空空間と前記穿刺機構とを密閉する第3密閉手段と、
前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室とを備え、
前記ピストンは、前記気室と前記中空空間とを繋ぐ連通孔を有し、
前記第1端部は、皮膚に当接可能な当接部と、センサを保持する保持部とを有する血液分析装置。 - 筐体端部から摺動自在に突出する支持部と、
前記支持部により摺動自在に支持され、センサを保持するセンサ保持部と、
前記支持部の突端部に設けられ、皮膚が当接可能な皮膚当接部と、
前記支持部により摺動自在に支持された前記センサ保持部と前記皮膚当接部を所定間隔で保つように第1伸縮強度で付勢する第1バネと、
前記支持部により摺動自在に支持された前記センサ保持部と前記筐体端部を所定間隔で保つように第2伸縮強度で付勢する第2バネと、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記皮膚当接部間を密閉する第1密閉手段と、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記筐体端部間を密閉する第2密閉手段とからなるセンサ装着機構を備える請求項20記載の血液分析装置。 - 穿刺により滲出した血液を、センサにより分析する血液分析装置であって、
筐体と、
前記筐体内に設けられ、皮膚を穿刺する穿刺手段と、
前記穿刺手段を動作させる穿刺機構と、
底部を有するシリンダと、前記シリンダ内部にあって該シリンダの軸に沿って摺動するピストンと、前記ピストンの端部と前記シリンダ内周とを密閉する第1密閉手段と、前記シリンダの開口部と前記ピストンの外周とを密閉する第2密閉手段と、前記第1及び第2密閉手段で密閉され、前記ピストンの外周と前記シリンダの内周とにより囲まれた気室と、前記気室と前記穿刺機構の減圧対象空間とを繋ぐ連通孔とからなる減圧機構と、
を備える血液分析装置。 - 筐体端部から摺動自在に突出する支持部と、
前記支持部により摺動自在に支持され、センサを保持するセンサ保持部と、
前記支持部の突端部に設けられ、皮膚が当接可能な皮膚当接部と、
前記支持部により摺動自在に支持された前記センサ保持部と前記皮膚当接部を所定間隔で保つように第1伸縮強度で付勢する第1バネと、
前記支持部により摺動自在に支持された前記センサ保持部と前記筐体端部を所定間隔で保つように第2伸縮強度で付勢する第2バネと、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記皮膚当接部間を密閉する第1密閉手段と、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記筐体端部間を密閉する第2密閉手段とからなるセンサ装着機構を備える請求項22記載の血液分析装置。 - 前記センサ装着機構は、前記筐体から脱着自在に構成される、請求項21記載の血液分析装置。
- 前記筐体端部は、前記センサ装着機構を脱着自在に装着させる装着面を有し、
前記センサ装着機構は、前記装着面に密着可能な着脱面を有し、
前記装着面と前記着脱面とを密閉する第3密閉手段を備える、請求項21記載の血液分析装置。 - 前記第3密閉手段は、パッキンである請求項25記載の血液分析装置。
- 前記第3密閉手段は、前記装着面又は前記着脱面から突出する凸部である請求項25記載の血液分析装置。
- 前記穿刺手段は、レーザ光により皮膚を穿刺するレーザ発射装置である請求項22に記載の血液分析装置。
- 前記穿刺手段は、穿刺針により皮膚を穿刺する針穿刺装置である請求項22に記載の血液分析装置。
- 筐体と、開口部を有するセンサと、前記筐体に収容され、穿刺針又はレーザ光により穿刺する穿刺手段とを備え、前記穿刺針又はレーザ光を前記開口部に貫通させて皮膚を穿刺し、穿刺により皮膚から滲出した血液を前記センサ内に導入して分析する血液分析装置であって、
前記筐体の一端である筐体端部から摺動自在に突出する支持部と、
前記支持部により摺動自在に支持され、前記センサを保持するセンサ保持部と、
前記支持部の突端部に設けられ、皮膚が当接可能な皮膚当接部と、
前記支持部により摺動自在に支持された前記センサ保持部と前記皮膚当接部を所定間隔で保つように第1伸縮強度で付勢する第1バネと、
前記支持部により摺動自在に支持された前記センサ保持部と前記筐体端部を所定間隔で保つように第2伸縮強度で付勢する第2バネと、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサの前記開口部と前記皮膚当接部間を密閉する第1密閉手段と、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサの前記開口部と前記筐体端部間を密閉する第2密閉手段と、
を備える血液分析装置。 - 穿刺時に、前記皮膚当接部が前記第1バネの付勢力に抗して前記センサ保持部を前記筐体端部方向に押し、さらに前記センサ保持部が前記第2バネの付勢力に抗して前記筐体端部方向に押すことにより、前記センサ保持部と前記皮膚当接部及び前記筐体端部とが、前記第1及び第2密閉手段を介して密閉される請求項30記載の血液分析装置。
- 前記第1密閉手段は、前記皮膚当接部に設置されたリング状パッキンである請求項30記載の血液分析装置。
- 前記第2密閉手段は、前記筐体端部に設置されたリング状パッキンである請求項30記載の血液分析装置。
- 前記第1バネの第1伸縮強度は、前記第2バネの前記第2伸縮強度以下である請求項30記載の血液分析装置。
- 前記センサ保持部は、前記センサを挿入する挿入口を切欠く切欠部を有する請求項30記載の血液分析装置。
- 前記センサ保持部は、前記センサを挿脱自在にガイドするガイド部を有する請求項30記載の血液分析装置。
- 前記センサ保持部は、前記センサを挟持する、前記皮膚当接部に対向する下面板と前記筐体端部に対向する上面板とを有し、前記下面板の厚さは前記上面板の厚さより薄い請求項30記載の血液分析装置。
- 筐体端部から摺動自在に突出する支持部と、
前記支持部により摺動自在に支持され、センサを保持するセンサ保持部と、
前記支持部の突端部に設けられ、皮膚が当接可能な皮膚当接部と、
前記支持部により摺動自在に支持された前記センサ保持部と前記皮膚当接部を所定間隔で保つように第1伸縮強度で付勢する第1バネと、
前記支持部により摺動自在に支持された前記センサ保持部と前記筐体端部を所定間隔で保つように第2伸縮強度で付勢する第2バネと、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記皮膚当接部間を密閉する第1密閉手段と、
前記皮膚当接部が前記筐体端部方向に押された場合、前記センサ保持部が保持する前記センサと前記筐体端部間を密閉する第2密閉手段と、
を備えるセンサ装着機構。 - 穿刺時に、前記皮膚当接部が前記第1バネの付勢力に抗して前記センサ保持部を前記筐体端部方向に押し、さらに前記センサ保持部が前記第2バネの付勢力に抗して前記筐体端部方向に押すことにより、前記センサ保持部と前記皮膚当接部及び前記筐体端部とが、前記第1及び第2密閉手段を介して密閉される請求項38記載のセンサ装着機構。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010541967A JP5121940B2 (ja) | 2008-12-09 | 2009-10-15 | 減圧機構、穿刺装置、血液分析装置及びセンサ装着機構 |
| CN200980149331.9A CN102245104B (zh) | 2008-12-09 | 2009-10-15 | 减压机构、穿刺装置以及血液分析装置 |
| US13/133,258 US8469881B2 (en) | 2008-12-09 | 2009-10-15 | Pressure reduction mechanism, puncture device, blood analysis device, and sensor mounting mechanism |
| EP09831610.2A EP2356939B1 (en) | 2008-12-09 | 2009-10-15 | Pressure reduction mechanism, puncture device, blood analysis device, and sensor mounting mechanism |
| US13/895,805 US20130317323A1 (en) | 2008-12-09 | 2013-05-16 | Decompression mechanism, puncturing apparatus, and blood analysis apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2008313644 | 2008-12-09 | ||
| JP2008-313644 | 2008-12-09 | ||
| JP2008-317341 | 2008-12-12 | ||
| JP2008317341 | 2008-12-12 |
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| US13/895,805 Division US20130317323A1 (en) | 2008-12-09 | 2013-05-16 | Decompression mechanism, puncturing apparatus, and blood analysis apparatus |
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| Country | Link |
|---|---|
| US (2) | US8469881B2 (ja) |
| EP (1) | EP2356939B1 (ja) |
| JP (2) | JP5121940B2 (ja) |
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| WO (1) | WO2010067501A1 (ja) |
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- 2009-10-15 US US13/133,258 patent/US8469881B2/en not_active Expired - Fee Related
- 2009-10-15 CN CN200980149331.9A patent/CN102245104B/zh not_active Expired - Fee Related
- 2009-10-15 EP EP09831610.2A patent/EP2356939B1/en not_active Not-in-force
-
2012
- 2012-10-22 JP JP2012233128A patent/JP5395943B2/ja not_active Expired - Fee Related
-
2013
- 2013-05-16 US US13/895,805 patent/US20130317323A1/en not_active Abandoned
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| JP2004000459A (ja) | 1996-12-06 | 2004-01-08 | Abbott Lab | 診断テスト用血液の採取方法及び装置 |
| JPH11206742A (ja) | 1998-01-22 | 1999-08-03 | Terumo Corp | 穿刺具 |
| JP2000245717A (ja) | 1999-03-04 | 2000-09-12 | Terumo Corp | 穿刺具 |
| WO2008075768A1 (ja) * | 2006-12-21 | 2008-06-26 | Panasonic Corporation | 血液センサとそれを用いた血液検査装置 |
| JP2008206721A (ja) * | 2007-02-26 | 2008-09-11 | National Institute Of Advanced Industrial & Technology | センサデバイス |
| JP3144721U (ja) * | 2008-06-27 | 2008-09-11 | 独立行政法人産業技術総合研究所 | バイオセンサ |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013056167A (ja) * | 2008-12-09 | 2013-03-28 | Panasonic Corp | 穿刺装置、血液分析装置及びセンサ装着機構 |
| CN103338702A (zh) * | 2010-12-15 | 2013-10-02 | 爱-森新株式会社 | 采血针持针器及具有该采血针持针器的采血针装置 |
| EP2653102A4 (en) * | 2010-12-15 | 2014-05-07 | I Sens Inc | LANCET HOLDER AND LANCETTE DEVICE THEREFOR |
| US9351678B2 (en) | 2010-12-15 | 2016-05-31 | I-Sen, Inc. | Lancet holder and lancet device including the same |
| JP2013226233A (ja) * | 2012-04-25 | 2013-11-07 | Terumo Corp | 穿刺装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5121940B2 (ja) | 2013-01-16 |
| JP5395943B2 (ja) | 2014-01-22 |
| CN102245104B (zh) | 2014-05-14 |
| CN102245104A (zh) | 2011-11-16 |
| EP2356939B1 (en) | 2014-01-22 |
| US8469881B2 (en) | 2013-06-25 |
| US20110245635A1 (en) | 2011-10-06 |
| EP2356939A4 (en) | 2012-12-19 |
| JPWO2010067501A1 (ja) | 2012-05-17 |
| EP2356939A1 (en) | 2011-08-17 |
| JP2013056167A (ja) | 2013-03-28 |
| US20130317323A1 (en) | 2013-11-28 |
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