JP2013011565A - Component measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily detach a measurement chip of a component measuring device in a state where a casing is held with one hand.SOLUTION: A component measuring device (blood glucose measuring device) 10 includes: a measuring part 30 for measuring a blood glucose level; a casing 12 for holding the measuring part 30; and a measurement chip 84 detachably attached to the measuring part 30. The casing 12 includes a panel 18 to which an ejecting member 36 for coming into contact with the measurement chip 84 to push out the measurement chip 84 is connected. By sliding the panel 18 relatively to the casing 12, the ejecting member 36 pushes out the measurement chip 84, and the measurement chip 84 is detached from the measuring part 30.

Description

  The present invention relates to a component measuring apparatus that measures a predetermined component in a body fluid.

  2. Description of the Related Art Conventionally, component measuring apparatuses that detect biological components in body fluids such as blood and urine and measure the amount and properties of the components are known.

  For example, Patent Document 1 discloses a measurement display (component measurement device) that measures a blood glucose level. The component measuring apparatus disclosed in Patent Document 1 holds a sensor unit (test tool) by a sensor mounting structure provided at the front end of a housing, and stores blood in contact with an inflow part in the test tool with a specimen holding part. The blood glucose level of the blood is measured via the terminal, and the measurement result is displayed.

JP-A-2005-43116

  By the way, in the component measuring apparatus disclosed in Patent Document 1, when the measurement of the blood sugar level is completed, the slider provided at the upper end side of the casing (upper part of the sensor mounting structure) is pushed out with a finger and slid. The sensor unit (test device) is removed from the sensor mounting structure. When removing the part to be measured, a slide operation is usually performed by placing a finger (for example, thumb) of one hand on the slider while the user holds the casing with one hand.

  However, when the size of the user's hand is small, there is an inconvenience that it is difficult for the finger to reach the slider in a posture while holding the housing, or it is difficult to slide the slider even if the finger reaches. In this case, since the user often grasps the housing in order to adjust the finger to the position of the slider after grasping the housing, the usability (operation feeling) is deteriorated.

  Further, even if the slider is simply enlarged, it interferes with a display screen arranged on the same surface of the housing, so that the arrangement state is limited. If the display screen is made smaller in accordance with the increase in the slider, it is very inconvenient for a diabetic patient who has many blind people in visually confirming the measurement result.

  The present invention has been made in view of the above circumstances, and is not affected by the size of the user's hand, and does not need to be held again. It is an object of the present invention to provide a component measuring apparatus that can be easily removed, thereby improving the usability of the apparatus.

  In order to achieve the above object, the present invention provides a measuring unit for measuring a predetermined component contained in body fluid, a housing for holding the measuring unit, and a detachably attached to the measuring unit for housing the body fluid. A component measuring apparatus comprising: a test tool; an eject unit that can move forward and backward with respect to the test tool in order to remove the test tool; and a display unit that displays a measurement result. A movable part having a transmission part for visually recognizing the part and connected to the eject part, and a fixed part for supporting the measurement part, and sliding the movable part relative to the fixed part Then, the ejecting part is moved forward, and the test tool mounted on the measuring part is detached under the moving action of the ejecting part.

  According to the above, by having the transmission part for visually recognizing the display part and the movable part connected to the ejection part, the finger of one hand holding the casing even when the user's hand size is small Can be pressed against the transmission part (or other part of the movable part) to easily slide the movable part. Thereby, the movable part is slid relative to the fixed part to move the eject part forward and backward, and the test tool attached to the measurement part can be easily removed by the eject part. That is, the ejection operation (detachment of the test tool) can be performed without being affected by the size of the user's hand and without having to hold the casing while holding it, thereby improving the usability of the component measuring apparatus.

  Further, in the conventional apparatus, when the ejector is simply enlarged, the area of the display unit has to be reduced. However, according to the above configuration of the present invention, the movable unit having the transmission unit is used for the ejection operation. Because the test tool can be removed without reducing the display area, it is possible to improve the visibility of measurement results, etc., for example, even in diabetic patients with many blind people Device.

  Here, the display unit has a display screen that is arranged so as to face the movable unit inside the fixed unit and displays the measurement result, and the transmission unit includes the movable unit having the predetermined component. It is good to arrange | position so that when it exists in the origin position located when measuring, it overlaps with the said display screen and this display screen can be visually recognized.

  As described above, when the movable part is at the origin position where the measurement of the predetermined component is performed, the transmission part overlaps the display screen, so that the user can surely see the measurement result.

  Furthermore, a cap that is detachably attached to an end of the housing and covers the measurement unit may be provided, and the cap may be detached from the housing by sliding of the movable unit.

  As described above, the cap that covers the measurement unit is configured to be detached from the housing by the sliding of the movable unit, so that the cap can be removed by one hand (one hand) holding the housing. For this reason, it is possible to easily receive the cap removed by the other hand, and it is possible to reduce inconveniences such as dropping and losing the cap.

  Further, the movable part is constituted by a panel extending at least half the total length in the longitudinal direction of the casing, and the fixing part is a panel mounting part for slidably mounting the panel in the longitudinal direction. It can be set as the structure which has these.

  As described above, since the fixed portion has the panel mounting portion for slidably mounting the panel in the longitudinal direction, a panel (for example, a cover member for protecting the display screen or the like) that has been conventionally mounted on the component measuring device can be attached. It can be used as it is. Therefore, it is not necessary to provide a member (for example, a slider of Patent Document 1) for removing the test tool, and the manufacturing cost of the apparatus can be suppressed. In addition, the panel for detaching the test tool extends at least half as long as the entire length of the casing in the longitudinal direction, so that the user can easily slide the panel while holding the casing with one hand. Can be made.

  In this case, an operation unit for operating the component measuring device is disposed inside the fixed unit so as to face the panel, and the panel is located at an origin position where the predetermined component is measured. It is preferable to have a push button that can come into contact with the operation portion and slides together with the panel.

  Thus, since the panel has the push button, the push button can be easily operated while confirming the display screen at the time of measuring the component. Further, by sliding the push button together with the panel, the push button does not get in the way when the panel is slid.

  Further, the movable part includes an upper casing that constitutes an upper portion of the casing and has a length that is at least half of the total length in the longitudinal direction of the casing, and the fixed portion includes a lower portion of the casing. It may comprise and may have a lower case which attaches the upper case slidably in the longitudinal direction.

  As described above, the movable part has the upper case that forms the upper part of the case, and the fixed part has the lower case that forms the lower part of the case, so that the upper part of the case is slid entirely. Thus, the slide operation can be performed more easily. In other words, the upper casing can be easily slid regardless of where the finger is pressed against the upper casing.

  In this case, the upper casing is provided with a substrate having a circuit for driving and controlling the measurement of the predetermined component, the display section, and an operation section for operating the component measuring apparatus, together with the upper casing. It is preferable to configure to slide.

  As described above, the substrate, the display unit, and the operation unit slide together with the upper housing, thereby eliminating problems such as displacement of the arrangement positions of the substrate, the display unit, and the operation unit due to the sliding of the upper housing. Can do.

  According to the present invention, the test device can be easily removed in the state of gripping the housing with one hand without being affected by the size of the user's hand and without holding the housing. Usability of the apparatus can be improved.

It is a perspective view showing the whole blood sugar level measuring device composition concerning a 1st embodiment. It is a disassembled perspective view which shows the blood glucose level measuring apparatus of FIG. It is sectional drawing of the III-III line of FIG. It is sectional drawing of the IV-IV line of FIG. FIG. 5A is an enlarged cross-sectional view illustrating a measurement unit of the blood sugar level measuring apparatus in FIG. 3, FIG. 5A is a diagram illustrating a cap attached state, and FIG. 5B is a diagram illustrating a cap detached state. 6A and 6B are enlarged cross-sectional views showing attachment and detachment of the measurement chip of the blood sugar level measuring apparatus of FIG. 3, FIG. 6A is a view showing a mounting state of the measurement chip, and FIG. 6B is a view showing a detached state of the measurement chip. It is a perspective view which shows the state which the measurement chip | tip removed from the blood glucose level measuring apparatus. It is a perspective view which shows the whole structure of the blood glucose level measuring apparatus which concerns on 2nd Embodiment. FIG. 9 is a partially exploded perspective view (cross-sectional view) showing the blood sugar level measuring apparatus of FIG. 8. It is sectional drawing of the XX line of FIG. It is sectional drawing of the XI-XI line of FIG. FIGS. 12A and 12B are explanatory views (cross-sectional views) showing attachment / detachment of the measurement chip to / from the blood glucose level measuring apparatus of FIG. 8, FIG. 12A is a view showing a mounting state of the measurement chip, and FIG. .

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments (first and second embodiments) of a component measuring apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  In the description of the present invention, a blood glucose level measuring device for measuring glucose concentration (blood glucose level) in blood will be described in detail as a component measuring device. This blood glucose level measuring device is a device in which a user (physician, nurse, diabetic patient, etc.) collects blood exuded from a puncture site, measures the blood glucose level, and manages the measurement data of the blood glucose level. . Of course, the component measuring device is not limited to the blood glucose level measuring device.

[First Embodiment]
FIG. 1 is a perspective view showing the overall configuration of a blood sugar level measuring device (component measuring device) 10 according to the first embodiment, and FIG. 2 is an exploded perspective view showing the blood sugar level measuring device 10 of FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. As shown in FIG. 1, the blood glucose level measuring apparatus 10 according to the first embodiment includes a casing 12 that is formed in a slender and vertically flat stick shape so that a person can easily hold it with one hand.

  In the following description, the width direction (short direction) of the housing 12 in FIG. 1 is the X direction, the extending direction (longitudinal direction) of the housing 12 is the Y direction, and the height direction of the housing 12 is the Z direction. Also called. Further, the front (front end) of the housing 12 is in the Y1 direction, the rear (base end) of the housing 12 is in the Y2 direction, the right side of the blood glucose measuring device 10 viewed from the front end side is the X1 direction, the left is the X2 direction, The upper direction is also called the Z1 direction, and the lower direction is also called the Z2 direction. In addition, these directions are for convenience of explanation, and it is needless to say that the blood glucose level measuring device 10 can be used in any direction.

  The housing 12 of the blood glucose level measuring device 10 includes an upper case 14 extending a predetermined length in the longitudinal direction (Y direction), a lower case 16 having the same length as the upper case 14 and extending in the Y direction, The panel 18 has the same length as the case 14, extends in the Y direction, and covers the upper surface of the upper case 14. The housing 12 constitutes a fixed portion 17 by superposing the upper case 14 and the lower case 16 in the vertical direction (Z direction), and a panel 18 as a movable portion with respect to the fixed portion 17 is disposed on the upper surface of the upper case 14. Can be assembled by slidably mounting.

  The panel 18 attached to the upper surface of the upper case 14 includes a transmission part 20 that covers substantially the entire surface in the center in the Y direction, and a peripheral part 21 that surrounds the transmission part 20 and extends in the distal direction and the proximal direction. Further, a push button 22 is provided on the peripheral portion 21 on the base end side (Y2 direction side) with respect to the transmission portion 20, and a plurality of ribs 24 are provided on the peripheral portion 21 on the distal end side (Y1 direction side) of the transmission portion 20. Is provided.

  The transmissive portion 20 corresponds to a transparent portion where the color material is not applied to the peripheral portion 21 where the color material is applied and the design surface is formed in the panel 18 made of a transparent resin material. Inside the transmission part 20 (inside the upper case 14), a liquid crystal display 26 (display part: see FIG. 2) that displays the measurement result (for example, blood sugar level) measured by the blood sugar level measuring device 10 and the operation state. ) Is arranged.

  In other words, the transmission unit 20 transmits light from the display screen 26a of the liquid crystal display 26, thereby enabling the user to visually recognize the display screen 26a. In the blood sugar level measuring apparatus 10 according to the present invention, a substantially large display screen can be obtained even if the blood sugar level measuring apparatus 10 is downsized because the substantially entire surface of the central portion of the housing 12 is configured by the transmission unit 20. 26a can be mounted, and the visibility of measurement results and the like can be improved.

  On the other hand, the push button 22 is a circular member made of a flexible elastic member (for example, rubber) in plan view. The push button 22 has a peripheral portion (not shown) connected to the panel 18. That is, the push button 22 is configured to move in the Z2 direction by the user's operation (press), and automatically return to the original position by the elastic force of the peripheral portion when the user releases the press.

  In addition, the ribs 24 provided on the distal end side extend in the X direction and are provided side by side in the Y direction. The rib 24 can function as a slip stopper when a finger is touched when the panel 18 is slid, and is further reinforced to receive stress (pressing force) applied in the Z2 direction when the panel 18 is slid. It also plays a role as a member. In the present embodiment, the panel 18 functions as a movable part.

  Caps 28 are attached to both ends of the housing 12 in the Y direction. These caps 28 are provided at the base end of the measurement unit 30 (see FIG. 2) exposed at the distal end portion of the housing 12 and the housing 12 when the blood glucose level measurement device 10 is not used. 2 has a function of protecting a connection terminal 32 (see FIG. 2) for connecting a computer, for example, a USB (Universal Serial Bus) from an external environment (for example, dust or water droplets).

  As shown in FIG. 2, in the internal space constituted by the upper case 14 and the lower case 16, as an internal mechanism for measuring blood components, a tip block 34, an eject member (eject part) 36, in order from the tip side, The photometry block 38 and the control system board 40 are accommodated. The front end block 34 is fixed to the front end portion of the housing 12 by being fitted into the inner peripheral surfaces of the upper case 14 and the lower case 16. The eject member 36 is attached to the front portion of the photometry block 38, and the photometry block 38 is mounted and fixed to the tip block 34, so that it is interposed between the tip block 34 and the photometry block 38 (see FIG. 3). ). The control system board 40 extends along the longitudinal direction of the housing 12, and the liquid crystal display 26 and the operation unit 42 are mounted on the upper surface thereof.

  The panel 18 constituting the housing 12 includes the transmission unit 20 and the push button 22 at positions facing the liquid crystal display 26 and the operation unit 42 of the control system substrate 40. In addition, a pair of (two) protrusions 44 (see FIG. 4) projecting in the Z2 direction are provided on the lower surface of the front end side of the panel 18, and the pair of protrusions 44 has a lower end portion formed on the eject member 36. Connected. That is, in the blood glucose level measuring apparatus 10 according to the first embodiment, the eject member 36 is moved forward and backward through the pair of protrusions 44 by sliding the panel 18 covering the upper surface of the upper case 14. Yes.

  For this reason, a panel attachment portion 46 to which the panel 18 is slidably attached is provided on the upper side of the upper case 14. Further, the upper case 14 has a pair of upper case side portions 48 extending obliquely downward from the panel mounting portion 46.

  The panel mounting portion 46 includes a concave portion 50 formed in a substantially concave shape in a front sectional view (see FIG. 4), a display screen window 52, a swinging portion 54, and a long hole 56 formed on the bottom surface of the concave portion 50. Have The width of the bottom surface of the recess 50 substantially coincides with the width of the panel 18, and the bottom surface of the recess 50 extends flatly from the distal end to the base end.

  The display screen window 52 is formed by cutting out substantially the entire surface in the Y-direction central portion on the bottom surface of the concave portion 50, and is formed at a position overlapping the transmission portion 20 of the panel 18 attached to the panel attachment portion 46. Yes. As described above, the liquid crystal display 26 is disposed inside the upper case 14, and the display screen window 52 has a function of exposing the display screen 26 a of the liquid crystal display 26 to the upper surface side.

  The swinging part 54 is provided on the base end side (Y2 direction side) from the display screen window 52 on the bottom surface of the recess 50. The swinging portion 54 has a disc 54a at a position facing the push button 22, and the disc 54a is connected to the upper case 14 via an elastically deformable connecting portion, thereby swinging in the Z direction. It is possible to move. In addition, a button protrusion 58 (see FIG. 3) is formed on the lower surface side of the swinging portion 54 (disk 54a). The button protruding portion 58 is disposed opposite to the operation portion 42 provided on the upper surface of the control system board 40 so that the top portion thereof is separated by a predetermined distance. That is, the oscillating portion 54 is pressed in the Z2 direction in accordance with the operation (pressing) of the push button 22, and operates the operation portion 42 by bringing the button protruding portion 58 into contact with the operation portion 42. The swinging portion 54 returns the disk 54a to the original position by the elastic force of the connecting portion when the operation is released.

  Two long holes 56 are formed side by side in the X direction on the front side (Y1 direction side) of the display screen window 52 on the bottom surface of the recess 50. The pair of long holes 56 have a width that substantially matches the outer diameter of the protrusion 44 of the panel 18, and the pair of protrusions 44 are inserted in the assembled state of the housing 12. Further, the pair of long holes 56 extend a predetermined length in the longitudinal direction (Y direction) of the housing 12, and the pair of protrusions 44 are within the range restricted by the long holes 56 in the longitudinal direction of the upper case 14. It is possible to move along.

  Furthermore, as shown in FIG. 4, panel hook portions 60 projecting inward in the width direction are formed in the upper portions of both side surfaces in the recess 50 of the panel mounting portion 46. The panel hook portion 60 extends in the Y direction (see FIG. 3). On the other hand, on the upper surface of both end portions in the width direction of the panel 18, an engaging stepped portion 62 having a thickness thinner than the thickness of the central portion is formed. The panel 18 is attached to the panel attaching portion 46 so that the engaging stepped portion 62 engages with the panel hook portion 60. That is, the panel 18 is prevented from coming off in the Z1 direction by the engaging stepped portion 62 being hooked on the panel hook portion 60, and is guided in the concave portion 50 in the Y direction.

  Further, the upper case side portions 48 connected to both sides in the width direction of the upper case 14 are formed in an arc shape from both sides of the panel mounting portion 46 and extend obliquely downward. A groove portion 64 is formed on the inner surface of the upper case side portion 48, and the assembly protrusion portion 66 of the lower case 16 is hooked on the groove portion 64.

  As shown in FIGS. 2 to 4, the lower case 16 of the housing 12 includes a pair of lower case side parts 68 on which the assembly protrusions 66 are erected, and lower ends of the pair of lower case side parts 68. And a flat lower surface portion 70 connected to the side.

  The lower case side portion 68 is formed in an arc shape from both sides in the width direction of the lower surface portion 70 so as to be substantially symmetrical with the upper case side portion 48 and extends obliquely upward. The assembling protrusions 66 are formed so as to protrude upward from three places (a total of six places on the left and right) of the front end portion, the center portion, and the rear end portion of the lower case side portion 68 along the longitudinal direction. The assembly protrusion 66 includes a hook 66 a that is hooked in the groove 64 at the upper end. In the case 12, the upper case 14 and the lower case 16 are firmly assembled by the hooks 66a engaging with the groove portions 64, respectively.

  The lower surface portion 70 of the lower case 16 extends in a flat shape in the longitudinal direction, and a battery window 72 through which a battery can be inserted is formed at a substantially central portion in the Y direction. A battery lid 72 a is fitted into the battery window 72. In the blood glucose level measuring apparatus 10, a battery storage unit 74 is provided on the lower surface of the control system board 40, and a button type battery 74 a is stored in the battery storage unit 74. At this time, the battery lid 72 a is removed, and the button-type battery 74 a is accommodated through the battery window 72. As a power source for driving the blood glucose level measuring apparatus 10, in addition to the button type battery 74a, a round battery, a square battery, a secondary battery, a power cord connected to an external power source, or the like may be applied. Of course.

  5 is an enlarged cross-sectional view showing the measurement unit 30 of the blood glucose level measuring device 10 of FIG. 3, FIG. 5A is a view showing a state where the cap 28 is attached, and FIG. 5B is a view showing a state where the cap 28 is detached. is there. 6 is an enlarged cross-sectional view showing attachment / detachment of the measurement chip 84 of the blood sugar level measuring apparatus 10 of FIG. 3, FIG. 6A is a view showing a mounting state of the measurement chip 84, and FIG. FIG.

  As shown in FIG. 5, the measurement unit 30 includes a tip block 34 that houses a mechanism for optically detecting blood. The tip block 34 is a tip of the housing 12 (upper case 14 and lower case 16). Attached and fixed to the opening. The distal end block 34 includes a fixed cylindrical portion 76 that is fixed to the housing 12 on the proximal end side, and a cylindrical portion 78 that protrudes from the front surface of the fixed cylindrical portion 76.

  The fixed cylinder portion 76 is formed in a bottomed cylinder shape that substantially coincides with the inner peripheral surface of the housing 12. That is, the upper surface and the lower surface are formed in a flat shape, and both side surfaces are formed in an arc shape along the inner surfaces of the upper case side portion 48 and the lower case side portion 68. Further, as shown in FIG. 2, a locking groove 80 is formed in an intermediate portion in the Y direction on the side surface of the fixed cylindrical portion 76, and the locking groove 80 has an upper case 14 and a lower case 16. A locking projection 82 formed on the inner peripheral surface is fitted. When the front end block 34 is assembled to the housing 12, the locking projections 82 are fitted into the locking grooves 80, so that the tip block 34 is prevented from falling off and is fixed to the housing 12.

  The cylindrical portion 78 of the distal end block 34 is opened by projecting a predetermined length in the distal direction (Y1 direction), and a measuring chip 84 (test tool) is detachably attached to the opening 78a. In addition, the cylindrical portion 78 is formed in a tapered shape in which the inner wall surrounding the opening portion 78a gradually decreases in diameter from the tip portion toward the rear, and the cylindrical portion side stepped portion 78b is formed by expanding the diameter at a predetermined position. Has been.

  As shown in FIG. 6, the measuring chip 84 attached to the cylindrical portion 78 includes a base portion 86 formed in a disk shape, a nozzle 88 projecting in the Y1 direction from the front surface of the base portion 86, and the base portion 86. And an engaging portion 90 protruding in the Y2 direction from the rear surface. The base portion 86 is formed so that the outer diameter thereof substantially matches the outer diameter of the cylindrical portion 78. The nozzle 88 protrudes from the central portion of the base portion 86, and a sampling hole 88a penetrating from the front end surface to the rear surface along the central axis is formed.

  On the other hand, the engaging portion 90 of the measuring chip 84 is formed in a cylindrical shape that engages with the opening 78 a of the cylindrical portion 78. The engaging portion 90 is formed with four locking claws 90a protruding rearward and elastically swingable at equal intervals on the circumference. When the measuring tip 84 is attached, each locking claw 90a gets over the tapered shape in the cylindrical portion 78 and engages with the cylindrical portion side stepped portion 78b. Thereby, the blood sugar level measuring apparatus 10 can hold the measuring chip 84 in the cylindrical portion 78.

  In addition, a test paper container 92 that communicates with the sampling hole 88a is provided inside the engaging portion 90. The test paper storage unit 92 stores a test paper 94 carrying a coloring reagent that reacts with components in blood when blood is collected. The blood sugar level measuring apparatus 10 measures blood components by irradiating the test paper 94 with measurement light and receiving reflected light from the test paper 94.

  As shown in FIGS. 2 to 6, the measuring unit 30 of the blood sugar level measuring apparatus 10 is a part that optically detects a blood component (blood sugar level) soaked in the test paper 94. The measurement unit 30 includes a tip block 34, a photometry block 38, and an optical system substrate 96. The front end block 34 is a member attached to the front end portion of the housing 12 as described above, and the photometric block 38 is fixedly supported in the fixed cylindrical portion 76. The tip block 34 is formed of a synthetic resin such as ASB resin or polycarbonate, for example.

  The photometric block 38 has a function of holding an optical system board 96 on which electronic components for detecting blood components are mounted and shielding external light and the like when measuring blood components. The photometric block 38 can be formed of the same material as the distal end block 34, and has a substrate holding portion 98 formed in a flat plate shape on the proximal end side, and a light guide portion 100 protruding from the substrate holding portion 98 in the distal direction. And have.

  In addition, two optical paths (measurement light optical path 102 and reflected light optical path 104) are formed in the photometry block 38 so as to penetrate in the width direction. As described above, the blood sugar level measuring apparatus 10 can reduce the number of components and the manufacturing cost by integrally forming the two optical paths 102 and 104 in the photometric block 38.

  The substrate holding portion 98 of the photometry block 38 has a flat rear surface, and an optical system substrate 96 is disposed on the rear surface. A positioning projection 98a for positioning the optical system substrate 96 is provided upright at the center of the rear surface. The positioning protrusion 98 a penetrates the optical system substrate 96 and is interposed between the light emitting element 106 and the light receiving element 108 mounted on the optical system substrate 96, and directly transmits light from the light emitting element 106 to the light receiving element 108. Propagation is blocked.

  On the other hand, the light guide unit 100 of the photometry block 38 is formed in a deviated cylindrical body whose upper and lower surfaces are linear and whose both side surfaces are arcs. A light guide unit side opening 100a through which the two optical paths 102 and 104 communicate is formed on the front surface of the light guide unit 100, and a lens (not shown) is inserted and held in the light guide unit side opening 100a. . As the lens held in the photometry block 38, a lens in which the measurement light lens and the reflected light lens are integrally formed corresponding to the two optical paths 102 and 104 can be applied.

  The optical system substrate 96 is formed in a shape that can be disposed on the rear surface of the substrate holding portion 98, and a positioning projection 98a is inserted through a substantially central portion thereof. The optical system substrate 96 receives two light emitting elements 106 (first light emitting element 106a and second light emitting element 106b) that emit measurement light on opposite surfaces of the two optical paths 102 and 104, and the reflected light. A light receiving element 108 is mounted.

  The first light emitting element 106a and the second light emitting element 106b are provided to emit measurement light having different wavelengths. As the light emitting element 106, for example, a light emitting diode (LED) that emits light of a predetermined wavelength can be used. As the light receiving element 108, for example, a photodiode (PD) can be applied. In a state where the optical system substrate 96 is disposed on the rear surface of the substrate holding portion 98, the light emitting element 106 is disposed on the proximal end side of the measurement light optical path 102, and the light receiving element 108 is disposed on the proximal end side of the reflected light optical path 104. The photometric block 38 ensures light shielding from the outside.

  In a state where the photometry block 38 is attached to the tip block 34, a clearance 110 is formed between the inner peripheral surface of the tip block 34 and the outer peripheral surface of the photometry block 38. An eject member 36 is slidably disposed in the clearance 110.

  The eject member 36 has an extruding portion 112 formed on the tip side, and a flat sliding plate 114 extending from the extruding portion 112 in the Y2 direction. The extruding portion 112 is formed in a circular arc shape in which a side portion in the X2 direction of the cylindrical shape is cut out by a predetermined amount, and a sliding plate 114 is continuously provided on the upper base end side thereof.

  The sliding plate 114 has a central portion cut out in the longitudinal direction, and a spring projection 116 is formed at the rear end of the cutout portion 114a. A pair of round holes 118 into which the pair of projections 44 of the panel 18 are fitted are formed at the rear end of the sliding plate 114.

  The eject member 36 is attached to the tip block 34 with the spring member 120 interposed. For this reason, a spring arrangement protrusion 121 protruding backward is provided on the top of the tip block 34. One end of the spring member 120 is fitted into the spring arrangement projection 121, and the other end is fitted into the spring projection 116 of the eject member 36.

  In a state in which the photometric block 38 and the eject member 36 are arranged in the distal end block 34, the pushing portion 112 is arranged on the outer peripheral surface (upper and lower surfaces and right side surface) of the light guide unit 100 of the photometric block 38. In addition, the eject member 36 is slidably disposed in the longitudinal direction of the casing 12, and the ejecting portion 112 slides on the outer periphery of the light guide portion 100 (i.e., Move forward and backward through the clearance 110). When the measurement tip 84 is attached to the tip block 34, the pushing portion 112 pushes the locking claw 90 a of the measurement tip 84 by the movement of the eject member 36 in the tip direction (Y1 direction). Thereby, the measuring chip 84 can be removed from the tip block 34.

  Further, a control system substrate 40 extending in the longitudinal direction is disposed behind the photometry block 38. The control system substrate 40 is electrically connected to the optical system substrate 96 and is as described above. The liquid crystal display 26 and the operation unit 42 are mounted on the upper surface.

  A predetermined wiring circuit is formed on the control system board 40 by printing, a microcomputer for executing a predetermined process, a storage device such as a ROM or a RAM storing a predetermined program, and other electronic components (active Elements, passive elements, etc.) are mounted (both not shown). The light emitting element 106 emits measurement light based on a light emission instruction (control signal) from the control system substrate 40. The light receiving element 108 receives the reflected light emitted from the light emitting element 106 and reflected by the test paper 94, and transmits a detection signal to the control system substrate 40. The microcomputer provided on the control system board 40 receives this detection signal, performs a predetermined process, calculates a blood glucose level, and displays the measurement result on the display screen 26 a of the liquid crystal display 26.

  The blood sugar level measuring apparatus 10 according to the first embodiment is basically configured as described above. Next, measurement of blood components by the blood sugar level measuring apparatus 10 will be described.

  When measuring blood components, first, the cap 28 attached to the tip of the housing 12 is removed. As shown in FIG. 5, the cap 28 attached to the housing 12 can be removed by a sliding operation of the panel 18. That is, while holding the housing 12 with one hand, the upper surface of the panel 18 is pressed with a finger, and the panel 18 is slid in the distal direction. As a result, the proximal end of the cap 28 is pushed by the distal end of the panel 18, and the cap 28 is removed from the housing 12.

  Thus, the cap 28 covering the measurement unit 30 is configured to be removed from the housing 12 by sliding the panel 18, so that the cap 28 is held by one hand (one hand) holding the housing 12. Can be removed. Of course, the cap 28 may be simply pulled out from the housing 12 in the distal direction and removed. Further, the cap 28 may be configured to be coupled to the housing 12 by a coupling mechanism such as a string or a hinge so as not to be separated from the housing 12.

  After the cap 28 is removed, the power is input by pressing the push button 22 of the panel 18 by the user. At this time, the panel 18 is disposed at the origin position where the transmission portion 20 faces the display screen 26 a of the liquid crystal display 26 and the push button 22 faces the swinging portion 54 of the upper case 14. Therefore, the push button 22 presses the swinging portion 54 of the upper case 14 in the Z2 direction so that the button protrusion 58 on the lower surface side of the swinging portion 54 contacts the operation portion 42 of the control system board 40. Let The blood sugar level measuring apparatus 10 starts light emission of the light emitting element 106 based on the operation signal from the operation unit 42. The operation unit 42 mainly functions as a power switch.

  Next, the measurement chip 84 is attached to the cylindrical portion 78 of the tip block 34, and the blood of the measurement subject is collected. Specifically, the fingertip is punctured with a dedicated puncture device (not shown), and a small amount (for example, about 0.3 to 1.5 μL) of blood is allowed to flow out onto the skin. Then, the tip of the nozzle 88 of the measurement chip 84 attached to the tip of the blood glucose level measuring device 10 is brought into contact with the blood that has flowed out of the fingertip.

  As a result, blood is taken into the collection hole 88a from the tip of the nozzle 88 and sucked to the rear end by capillary action. Then, the ink penetrates into the test paper 94 stored in the test paper storage unit 92 and spreads outward in the radial direction of the test paper 94. Simultaneously with the development of the blood, the glucose in the blood and the coloring reagent contained in the test paper 94 start to react, and the test paper 94 is colored according to the amount of glucose.

  The blood sugar level measuring apparatus 10 emits measurement light from the light emitting element 106. The measurement light passes through the measurement light optical path 102, enters the irradiation light lens, is condensed, and is irradiated onto the test paper 94. The measurement light applied to the test paper 94 is reflected by the test paper 94, and is incident on the reflected light lens as the reflected light and collected. The reflected light passes through the reflected light optical path 104, is received by the light receiving element 108, and the amount of light is detected. Thereby, the blood sugar level measuring apparatus 10 measures the degree of coloration of the test paper 94 based on the reflected light amount. Then, time measurement is started from the time when blood soaks into the test paper 94 and the amount of reflected light changes greatly, and the blood sugar level is calculated based on the amount of reflected light after a predetermined time has elapsed.

  Furthermore, in the blood glucose level measurement by the blood glucose level measuring apparatus 10, the measurement light of the first light emitting element 106a and the second light emitting element 106b is emitted alternately. And the pigment | dye produced by reaction with a coloring reagent and glucose is detected with the measurement light which the 1st light emitting element 106a irradiates, and the color density according to the quantity of glucose is measured. Further, red blood cells are detected by the measurement light emitted by the second light emitting element 106b, and the red density of the red blood cells is measured. Then, the blood glucose level can be obtained by correcting the glucose value obtained from the color density using the hematocrit value obtained from the red density.

  The measured blood glucose level is displayed on the display screen 26a of the liquid crystal display 26, and the user can visually recognize the measurement result through the transmission part 20 of the panel 18 at the origin position in the natural state.

  After the measurement is completed, the measurement tip 84 is removed from the tip block 34 as shown in FIG. 6B. Here, in the blood glucose level measuring apparatus 10 according to the first embodiment, as described above, the pair of protrusions 44 provided at the distal end portion of the panel 18 are ejected via the elongated holes 56 of the upper case 14. It is fitted in 36 round holes 118. In a state where the panel 18 is at the origin position, the projection 44 of the panel 18 is in contact with the rear end portion of the long hole 56, and the panel 18 and the eject member 36 are urged in the Y2 direction by the spring member 120.

  The user slides the panel 18 from the origin position in the distal direction, thereby contracting the spring member 120 and sliding the eject member 36 in the distal direction. By this slide, the pushing portion 112 of the eject member 36 can push the locking claw 90a of the measuring tip 84 forward, and the measuring tip 84 can be removed.

  In this case, the user presses the finger of one hand against any part (transmission part 20, peripheral part 21) of the upper surface of the panel 18 while holding the housing 12 with one hand, and the panel is touched by this finger. The panel 18 can be slid to an advanced position where the projection 44 abuts against the distal end portion of the long hole 56 by performing an operation so as to push it toward the distal end side while appropriately pressing the 18. The blood glucose level measuring apparatus 10 can be easily and quickly removed by touching the panel 18 without touching the hand by the sliding operation of the panel 18 and can be easily disposed of.

  When the measurement chip 84 is removed from the tip block 34 and the user releases the finger from the panel 18, the eject member 36 is biased in the Y2 direction by the biasing force of the spring member 120 attached to the tip block 34. As a result, the panel 18 and the eject member 36 slide in the Y2 direction until the pair of protrusions 44 come into contact with the rear end of the long hole 56, and return to the original origin position.

  Further, when the panel 18 slides in the distal direction, as shown in FIG. 7, the transmission part 20, the peripheral part 21, and the push button 22 move integrally with the panel 18. For this reason, at the time of a slide, the permeation | transmission part 20 and the pushbutton 22 do not become obstructive.

  Thus, the blood sugar level measuring apparatus 10 according to the first embodiment can easily remove the measuring chip 84 by sliding the panel 18 covering the upper surface of the housing 12. In the blood sugar level measuring apparatus 10 according to the first embodiment, the panel 18 extends at least half as long as the entire length in the longitudinal direction of the housing 12 (upper case 14 and lower case 16). Good. This is because, if the panel 18 has this length, the finger can reach the panel 18 even when the size of the user's hand is small. That is, with the housing 12 held with one hand, the panel 18 can be easily slid by pressing a finger against any part of the panel 18 attached to the upper surface of the housing 12. For this reason, it becomes possible to remove the measuring chip 84 while holding the housing 12 without being affected by the size of the user's hand, and the usability of the blood glucose level measuring apparatus 10 can be improved.

  In addition, since the conventional measurement device (for example, the measurement display of Patent Document 1) has a small ejector (slider), it is necessary to bring the device back to bring the finger to the ejector. In the value measuring apparatus 10, since the panel 18 is connected to the eject member 36, if the panel 18 having a large area is pushed, the ejecting operation (detachment of the measuring chip 84) is possible, and the apparatus is held while being held. Eject operation is possible. Furthermore, if the ejector is simply enlarged, the area of the liquid crystal display 26 (display unit) must be reduced, but the panel 18 and the ejection member 36 are connected as in the present embodiment, and the panel 18 is used for the ejection operation. This eliminates the need to reduce the area of the liquid crystal display 26.

  It goes without saying that the panel 18 can be slid more easily if the operation is performed by pressing a finger against the plurality of ribs 24 formed at the front end portion of the panel 18.

  In addition, since the blood sugar level measuring apparatus 10 slides the panel 18 that covers the display screen 26a and removes the measuring chip 84, a display screen protecting panel that has been conventionally attached to the blood sugar level measuring apparatus 10 is used. The measuring tip 84 can be removed. That is, it is not necessary to provide a member for removing the measurement chip 84 (for example, the slider of Patent Document 1), and the manufacturing cost of the apparatus can be suppressed.

[Second Embodiment]
FIG. 8 is a perspective view showing an overall configuration of a blood sugar level measuring device (component measuring device) 10A according to the second embodiment, and FIG. 9 is a partially exploded perspective view showing the blood sugar level measuring device 10A of FIG. 10 is a cross-sectional view taken along line XX of FIG. 8, and FIG. 11 is a cross-sectional view taken along line XI-XI of FIG. In the following description of the second embodiment, the same components as those of the blood glucose level measuring device 10 according to the first embodiment or components having the same functions are denoted by the same reference numerals, and detailed description thereof is omitted. .

  The blood sugar level measuring apparatus 10A according to the second embodiment is different from the blood sugar level measuring apparatus 10 according to the first embodiment (see FIGS. 1 to 7) in that the upper case 14 slides relative to the lower case 16. Is different.

  As in the first embodiment, the blood sugar level measuring apparatus 10 </ b> A has an upper case 14, a lower case 16, and a panel 18 as a housing 12, and the panel 18 is bonded and fixed to the upper case 14. That is, in the second embodiment, the upper case 14 and the panel 18 constituting the movable part 19 slide integrally with the lower case 16 (fixed part), so that the measurement chip 84 (and the cap 28) is detached. Is done.

  As shown in FIGS. 8 to 10, a control system substrate (substrate) 40 and a liquid crystal display (display unit) 26 are fixed to the upper case 14 as members that slide together with the upper case 14. On the control system board 40, an operation unit 42, a battery storage unit 74, and the like are mounted, and these members also slide integrally as the upper case 14 slides. The liquid crystal display 26 is screwed to the lower surface side of the upper case 14 so that the display screen 26a is always substantially coincident with the transmission portion 20 of the panel 18 and the display screen window 52 of the upper case 14. it can. Therefore, even when the upper case 14 is slid, the display screen 26a (see FIGS. 10 and 11) can be visually recognized by the user. For example, the detached state of the measurement chip 84 can be displayed on the display screen 26a. .

  In addition, a pair of protrusions 44 are formed to protrude from the lower surface of the distal end portion of the upper case 14. Similar to the projection 44 of the first embodiment, the projection 44 is connected to the ejection member 36 so that the ejection member 36 can slide together with the slide of the upper case 14.

  On the other hand, the front case block 34 and the photometric block 38 constituting the measuring unit 30 are fixedly supported on the lower case 16. An eject member 36 is slidably disposed between the tip block 34 and the photometry block 38. As in the first embodiment, the eject member 36 has round holes 118 (not shown in FIGS. 8 to 12) formed at both ends on the rear side of the sliding plate 114. The protrusion 44 of the upper case 14 is fitted and fixed.

  The optical system board 96 and the control system board 40 are electrically connected to each other via the flexible cable 122. The flexible cable 122 is flexibly bent as the control system board 40 slides, thereby ensuring the connection between the boards 40 and 96.

  As shown in FIG. 11, the casing 12 has a boundary portion between the upper case 14 and the lower case 16 formed as a slide mechanism. Specifically, the pair of upper case side portions 48 that form the side portion of the upper case 14 are, as viewed from the front, a rectangular valley portion 124 near the lower end portion of the inner peripheral surface, and a rectangular shape that continues to the valley portion 124. The mountain portion 126 is provided. On the other hand, a pair of lower case side portions 68 forming the side portion of the lower case 16 is provided with an assembly protrusion 66, and the assembly protrusion 66 has the valley portion 124 and the mountain portion 126. An engagement peak portion 128 and an engagement valley portion 130 that are engaged with each other are formed. That is, in a state where the housing 12 is assembled (a state where the upper case 14 and the lower case 16 are overlapped), the engagement peak portion 128 of the lower case 16 is engaged with the valley portion 124 of the upper case 14, and the upper case 14. The engagement valley portion 130 of the lower case 16 is engaged with the peak portion 126. Thereby, the lower case 16 can slide the upper case 14 in the Y direction while preventing the upper case 14 from coming off.

  The blood glucose level measuring apparatus 10A according to the second embodiment is basically configured as described above. Next, the operation of the blood sugar level measuring apparatus 10A will be described. FIG. 12 is an explanatory diagram (cross-sectional view) showing attachment / detachment of the measurement chip 84 to / from the blood glucose level measurement apparatus 10A of FIG. 8, FIG. 12A is a diagram showing a mounting state of the measurement chip 84, and FIG. FIG.

  When the measurement of the blood glucose level is completed, the blood glucose level measurement apparatus 10A removes the measurement chip 84 from the distal end block 34, similarly to the blood glucose level measurement apparatus 10 according to the first embodiment. Here, the upper case 14 is disposed at the origin position before the slide operation by the eject member 36 being urged rearward by the spring member 120.

  The user slides the upper case 14 from the origin position in the distal direction, thereby contracting the spring member 120 and sliding the eject member 36 toward the distal end side. By this slide, the pushing portion 112 of the eject member 36 comes into contact with the locking claw 90a of the measuring chip 84 and pushes it forward, so that the measuring chip 84 can be removed.

  In this case, compared with the blood glucose level measuring apparatus 10 according to the first embodiment, the upper part of the housing 12 can be slid entirely, so that the sliding operation can be performed more easily. That is, even when the finger is pressed against any part of the upper case 14 in a state where the lower case 16 is gripped, it can be easily slid.

  As described above, the blood sugar level measuring apparatus 10 </ b> A according to the second embodiment can easily remove the measuring chip 84 by sliding the upper case 14 of the housing 12. Even in this case, the upper case 14 can be slid to the distal end side with the lower case 16 held by one hand without being affected by the size of the user's hand. For this reason, the panel 18 can be slid in a state where the one hand is not in an unreasonable posture and the housing 12 is securely gripped.

  In addition, the liquid crystal display 26, the control system board 40, and the operation unit 42 slide together with the upper case 14, so that the arrangement positions of the liquid crystal display 26, the control system board 40, the operation unit 42, and the like shift with respect to the upper case 14. Etc. can be eliminated.

  The present invention is not limited to the above-described embodiment, and it is needless to say that various configurations and processes can be employed without departing from the gist of the present invention. For example, the blood sugar level measuring devices 10 and 10A may be provided with a slide lock mechanism or the like that prevents the sliding operation of the movable part during blood sugar level measurement.

DESCRIPTION OF SYMBOLS 10, 10A ... Blood glucose level measuring device 12 ... Housing 14 ... Upper case 16 ... Lower case 17 ... Fixed part 18 ... Panel 19 ... Movable part 20 ... Transmission part 21 ... Peripheral part 22 ... Push button 24 ... Rib 26 ... Liquid crystal display 26a ... Display screen 28 ... Cap 30 ... Measuring part 36 ... Eject member 40 ... Control system board 42 ... Operation part 44 ... Projection 46 ... Panel mounting part 56 ... Long hole 84 ... Measuring chip 94 ... Test paper 118 ... Round hole 120 ... Spring member 122 ... Flexible cable

Claims (7)

A measurement unit for measuring a predetermined component contained in body fluid; a housing for holding the measurement unit; a test tool that is detachably attached to the measurement unit and contains the body fluid; and a test tool for removing the test tool. A component measuring device having an eject part that is movable back and forth with respect to a test tool, and a display part that displays a measurement result,
The housing has a transmission part for visually recognizing the display part and a movable part connected to the ejection part;
A fixing part for supporting the measurement part,
The ejecting portion is moved forward by sliding the movable portion relative to the fixed portion, and the test tool attached to the measuring portion is detached under the moving action of the ejecting portion. Component measuring device. In the component measuring device according to claim 1,
The display unit is disposed inside the fixed unit so as to face the movable unit, and has a display screen for displaying the measurement result,
The transmission part is arranged to overlap the display screen so that the display screen is visible when the movable part is at an origin position where the predetermined component is measured. Component measuring device. In the component measuring device according to claim 1 or 2,
Furthermore, it has a cap that is detachably attached to the end of the housing and covers the measurement unit,
The component measuring apparatus according to claim 1, wherein the cap is detached from the housing by sliding of the movable part. In the component measuring apparatus as described in any one of Claims 1-3,
The movable part is constituted by a panel extending at least half the length in the longitudinal direction of the casing,
The component measuring apparatus according to claim 1, wherein the fixing portion includes a panel attachment portion for slidably attaching the panel in the longitudinal direction. In the component measuring device according to claim 4,
Inside the fixed part, an operation part for operating the component measuring device is arranged so as to face the panel,
The panel has a push button that can be brought into contact with the operation portion at an origin position that is located when the predetermined component is measured and slides together with the panel. In the component measuring apparatus as described in any one of Claims 1-3,
The movable portion comprises an upper casing that constitutes an upper portion of the casing and has a length that is at least half of the total length in the longitudinal direction of the casing;
The component measurement apparatus according to claim 1, wherein the fixing unit includes a lower casing that constitutes a lower portion of the casing and attaches the upper casing to be slidable in the longitudinal direction. The component measuring apparatus according to claim 6, wherein
A substrate having a circuit for driving and controlling the measurement of the predetermined component, the display unit, and an operation unit for operating the component measuring device are attached to the upper casing, and slides together with the upper casing. A component measuring apparatus characterized by the above.

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