WO2010029428A1 - Dispositivo localizador del espacio epidural - Google Patents
Dispositivo localizador del espacio epidural Download PDFInfo
- Publication number
- WO2010029428A1 WO2010029428A1 PCT/IB2009/006833 IB2009006833W WO2010029428A1 WO 2010029428 A1 WO2010029428 A1 WO 2010029428A1 IB 2009006833 W IB2009006833 W IB 2009006833W WO 2010029428 A1 WO2010029428 A1 WO 2010029428A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- epidural space
- further characterized
- locating
- distal
- epidural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3401—Puncturing needles for the peridural or subarachnoid space or the plexus, e.g. for anaesthesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00115—Electrical control of surgical instruments with audible or visual output
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/064—Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
Definitions
- the present invention is related to the techniques applied in the design of devices and equipment for surgical procedures, and more specifically, it is related to an epidural space locating device, which clearly indicates to the surgeon the moment at which a spinal needle has arrived. to the epidural space of a patient during anesthesia and epidural analgesia procedures.
- anesthesia or spinal analgesia there are two basic techniques for introducing medications into a patient's spinal area, namely; epidural and subdural or subarachnoid, these can be used to create anesthesia or spinal analgesia.
- epidural and subdural or subarachnoid these can be used to create anesthesia or spinal analgesia.
- an anesthetic is injected into the spinal cord and the nerves of the nerves in order to block pain sensations of a region of the body, such as the abdomen, hips, legs, or Ia Pelvis during delivery.
- meninges are composed of three layers: the hard mother, the arachnoid and the mother pia.
- the tough mother is the strongest, most inflexible and external layer of the three;
- the arachnoid is the middle membrane and the mother pia is the most internal and delicate of the meninge layers.
- cerebrospinal fluid is a clear body fluid that occupies the subarachnoid space, which is the space between the arachnoid layers and the mother pia of the meninges.
- Epidural anesthesia involves the insertion of a hollow spinal needle (for example a Tuohy needle) until it reaches the epidural space that is the space that is under the hard mother. The area where the needle is inserted is blocked with local anesthesia. Then, the needle is inserted and removed after the catheter has passed through the epidural space, said catheter remains in this area.
- the anesthetic is injected into the catheter to block the area of the body that is above or below the point of injection, as needed. The catheter is secured on the back so that it can be used again, in case it is necessary to apply more anesthetic.
- Ka subdural or subarachnoid anesthesia is carried out in the same way, except that the anesthetic is injected directly into the cerebrospinal fluid that surrounds the spinal cord with the help of a second spinal needle, such as a Whitacre needle, a Quinkle or a needle Sprotte, this needle is introduced into the first spinal needle (Tuohy needle).
- a second spinal needle such as a Whitacre needle, a Quinkle or a needle Sprotte
- Subdural or Subarachonidea anesthesia blocks the part of the body that is below the site where the anesthetic is supplied, or, above it, depending on the dose of the anesthetic and the technique used to apply it.
- the tip of the second needle is directed to the upper part of the body and the anesthetic is dosed, this part of the body is the one that will be blocked, the same occurs when the anesthetic is applied to the lower part of the body.
- a spinal catheter can be inserted and left in the place where the injection was made to perform continuous spinal anesthesia instead of using the second needle.
- any spinal needle must pierce the skin, the subcutaneous fat, the supraspinatus ligament, ligaments, the epidural space (in the case of epidural anesthesia), the hard mother and the arachnoid layer until the needle reaches the subarachnoid space, in which are the spinal cord and nerve roots that are surrounded by the CSF (in the case of spinal anesthesia).
- anesthesia which consists in the application of both anesthesia, epidural and subdural or subarachnoid.
- the first is used for surgery and anesthetic delivery, particularly to administer booster doses, and the second is used to provide a longer anesthetic time for the patient.
- the anesthetic can affect the nervous, cardiovascular and respiratory systems. Both subdural or subarachnoid and epidural anesthesia can significantly affect breathing, heartbeat and other vital functions. In addition, there is a potential risk of toxicity caused by large doses of medication not necessary to obtain an adequate blockage. As mentioned, the flow direction in which the anesthetic is dosed in the epidural or subarachnoid space is very important to achieve the objective of blocking the desired part of the body.
- a spinal needle such as a Tuhoy needle is connected to a syringe where the piston thereof is initially displaced in order to leave inside the syringe housing of 4 to 10 cubic centimeters of air. Then, the needle is inserted into the patient's body while the end of the piston rod is pressed with the thumb to exert a slight pressure as the needle is introduced into the patient's body.
- the syringe plunger moves without resistance in the direction of the patient, which indicates that the epidural space has been reached.
- said technique has to be performed very carefully because as mentioned, the hard mother and arachnoid layers are so close to each other that sometimes it is not possible to pierce the hard mother without going through the arachnoid layer . In addition, there is a risk of introducing extra air into the epidural space that can damage the patient's condition.
- this syringe is characterized in that it comprises a piston that descends into a housing located in the upper part of the needle in order to visually indicate to the surgeon the moment in which the needle has reached the epidural space.
- US Patent No. 6,773,417 shows an epidural space locator device comprising a body section having a first end and a second end; a channel that extends between said ends, wherein the first end is attachable to a luer connector; and, a collapsible rear chamber that has one end coupled to the second end of the body section and the other end is exposed in such a way that it allows to exert pressure with one or more fingers of the hand, such that when there is a positive pressure inside the chamber, it maintains its shape and when the pressure is negative or zero inside the chamber, it collapses, indicating the location of the epidural space through a needle that attaches to a luer connector; and the loss of pressure within the chamber is detected with the fingers of the hand as the shape of the chamber collapses.
- a pressure must be exerted on the distal end of the device.
- the devices of the prior art continue using or are related to a syringe or a means where pressure has to be exerted with the fingers, in addition when the syringe and the spinal needle are coupled, the resulting length can be of several centimeters, which represents a disadvantage in the manipulation of the needle and the device once coupled whenever the weight can overcome the coupling, for this reason, there is a need for more precise and compact instruments and devices that allow detecting the surgeon to feel the moment in which the epidural space has been reached.
- the device comprises a handle with a distal end and a proximal end; a hollow distal chamber attached to the distal end of the handle and which is provided with a connector where a spinal needle is inserted into the patient's body, such that there is a flow connection between the spinal needle and the distal chamber.
- Another element of the device of the present invention is a pressure loss or fall detection system comprising an embolus that runs inside the distal chamber from an initial position to an end position when there is a loss of pressure due to the fact that the spinal needle arrives to the epidural space; and, means for signaling the pressure drop inside the distal chamber and that are connected to the plunger; in such a way that said means generate a warning signal when the piston moves towards its final position because the needle has reached the epidural space.
- the objective of the securing means is to have the piston immobilized at the moment when the spinal needle is attached to the device, once the device and the spinal needle are coupled, and the latter is inside the patient, the securing means are released so that the plunger can move freely within the distal chamber for the moment at which the spinal needle arrives to the epidural space.
- the warning signal that can be a visual, tactile, sound signal or a combination thereof, the signal is generated by a signal generating source, preferably, a visual signal is generated in the form of light, preferably emitted by a signal generating source such as a light emitting diode (LED).
- a signal generating source such as a light emitting diode (LED).
- the device of the present invention can be disposable or reusable and it is preferred that the distal chamber is transparent. With the device of the present invention, the epidural space is more reliably located in comparison with the prior art techniques and devices.
- Figure 1 is a side view of a syringe and a spinal needle, of which the syringe is specially designed to perform the "resistance loss” technique that is used in the prior art to detect the epidural space.
- Figure 2 is a side view of the syringe and the spinal needle of Figure 1, once the needle has reached the epidural space.
- Figure 3 is a side view of a preferred embodiment of the epidural space locator device of the present invention.
- Figure 4 is an exploded view of the epidural space locator device illustrated in Figure 3.
- Figure 5 is an enlarged cross-sectional view taken along line A-A 'of the epidural space locator device of Figure 3.
- Figure 6 is an enlarged view of a cross-sectional section taken along line B-B 'of Figure 3, where the plunger is in its initial position.
- Figure 7 is an enlarged view of a cross-sectional section taken along line B-B 'of Figure 3, where the plunger is in its final position.
- Figures 1 and 2 describe the technique called "loss of resistance" in which a spinal needle 10 of the type is used Tuohy and a syringe 20 coupled to the spinal needle 10.
- the plunger 21 of the syringe 20 is displaced towards the proximal end of the housing 22 of the syringe 20 whenever there is a volume inside the same of air, that is to say, the cannula 1 1 of the needle 10 has not reached the epidural space 1 that is between the hard mother 2 and arachnoid membranes 3.
- the numerical reference 4 corresponds to the pious mother membrane.
- the device 30 comprises a handle 40 with a distal end 45 and a proximal end 46, the handle is preferably hollow and cylindrically formed by an upper half 41 and a lower half 42 coupled together.
- the distal chamber 50 On the right side of Figure 3, there is a hollow distal chamber 50, also in a cylindrical shape, the distal chamber 50 is attached to the distal end 45 of the handle 40 and is provided with a distal connector 51 where a spinal needle 10 is received , Which is introduced into the patient's body, so that there is a flow connection between the spinal needle 10 and the distal chamber 50.
- the distal connector 51 is preferably a "Luer” type connector, which is widely known in Ia technique and does not need to be described in detail in this document.
- another element of the device of the present invention is also observed, which is a piston 60 with a rubber head 61 running inside the distal chamber 50 from an initial position indicated with the letter "I" to an end position "F".
- the piston 60 moves in the distal direction, as indicated by the movement arrows 31 when there is a loss of pressure within the distal chamber 50 because the spinal needle 10 reaches the epidural space. At this point, it is important to note that, from the moment in which there is a loss of pressure within the distal chamber 50, the piston 60 moves in the distal direction, therefore, it follows that the epidural space has been reached.
- the initial "I” and final “F” positions in Figure 3 are only illustrative to represent the movement performed by the piston 60, the movement may have a greater or lesser stroke length.
- the device of the present invention comprises means for securing the piston 60 in its initial position "I", in particular, in Figure 3, a rocker button 71 is mounted on the handle 40, the button 71 is part of said insurance means, other elements of the insurance means for the preferred embodiment described will be described later.
- signaling means are provided that are connected to the plunger 60.
- some elements that form the signaling means are observed, such as the mobile compartment 81 formed by an internal body 82 and a cover 83 coupled together.
- a diode light emitter (LED) 84 (illustrated with dashed lines); said compartment 81 is attached to the piston 60, in this way if the piston 60 moves distally because the spinal needle 10 reaches the epidural space, so does the behavior 81, which, as introduced into the handle 40 as illustrated by the movement arrows 32, it causes the LED 84 to light, whose light can be observed through the proximal end 80 of the mobile compartment 81.
- LED diode light emitter
- Figure 4 shows an exploded view of the epidural space locating device 30, in this figure the parts thereof can be distinguished more clearly, for example, the upper and lower halves 41 can be observed 42 of the handle 40 that are coupled with one another.
- the distal chamber 50 is appreciated, which is preferably transparent and has a proximal end 52 in the form of a ring, which is received within a distal internal seat 43 of the handle 40.
- the plunger 60 which It has an elongated shape, on the distal end 62 of the piston 60 the rubber head 61 is mounted, which adjusts in dimensions with the interior of the distal chamber 50 to seal it.
- a rocker button 71 is included, which has a "securing" position and a “release” position, the button 71 is provided with a downward projection 72, which hooked on an annular disk 73 provided on the piston 60 in order to secure it, the annular disk 73 is pressed against that of the projection 72 by elastic means which, in the embodiment described, are the spring 74, which is driven inside the handle and its distal end 75 makes contact with the disc 73, in addition the spring 74 has a proximal end 76 that makes contact with the retainer 77 in order to rest.
- the piston 60 is secured by the button 71 that engages on the disc 73 and receives a slight force from the spring 74 to hold it in the initial position;
- the button 71 is moved towards the release position, the projection 72 is removed from the disc 73 of the plunger 60 so that the latter can move freely within the distal chamber 50 when there is a loss of pressure therein.
- the button 71, the descending projection 72, the annular disk 73 and the spring 74 form the securing means of the modality described.
- a system for detecting the loss or fall of pressure one of the parts of said system is the means to signal to the user the pressure drop within the distal chamber and that they are connected to the plunger; in such a way that said means generate a warning signal when the needle has reached the epidural space.
- the signaling means comprise the mobile compartment 81 formed by the internal body 82 and the cover 83 that are coupled together, within the compartment 81 a power source is housed, such as the batteries 85, the compartment 81 is connected to the piston 60 by coupling legs 63 included in the proximal end 64 of the piston 60, the coupling legs 63 run freely within the spring 74 and the retainer 77 to be inserted into coupling openings 86 included in the internal body 82 of the mobile compartment.
- the piston 60 together with the movable compartment 81 the latter can move in and out of the proximal end 46 of the handle 40.
- the switch 87 electrically connected with the batteries 85 and the LED 84, the switch is in the form of a flexible lamella and is mounted on the mobile compartment 81, the switch 87 closes once the piston 60 has arrived to its final position in order to turn on the LED 84 that is powered by the batteries 85.
- the internal body 82 and the cover 83 are joined by coupling projections 88 provided in the internal body 82 that are inserted into the windows 89 formed in the cover 83.
- Figures 6 and 7 show sectional views of the proximal end of the epidural space locating device 30
- Figure 6 corresponds to the initial position of the piston 60
- Figure 7 corresponds to the final position of the piston 60 when the epidural space has been reached.
- the piston 60 is attached to the mobile compartment 81 by means of coupling legs 63 that are inserted into the coupling openings 86 included in the internal body 82 of the mobile compartment 81, in this way when the piston 60 moves such as Io the arrows 32 indicate, the behavior also moves movable in the distal direction, causing the switch 87 to close to turn on the LED 84 which is powered by the batteries 85.
- the handle 40 includes a semi-circular internal shoulder 44 provided in the upper half 41 that lowers the switch 87 as the mobile compartment 81 is introduced in order to put the switch 87 in contact with the terminal 91 of the LED and thereby turn on the latter, whose light can be seen by a proximal window 90 provided at the proximal end 80 of the lid 83 , Which can also be transparent to perceive the LED light 84.
- the spring 74 is also observed whose proximal end 76 rests on the retainer 77.
- the signal warning is visual and the signal source is an LED, however, if you want to generate a touch signal, you can replace the LED by vibrating motor, or if you want to generate a sound signal If a horn is emitted that emits sounds instead of the LED, the possibilities are multiple. Due to its medical use, the locating device of the present invention is sterilized with Gamma rays or ethylene oxide, and is made of plastic materials in order to make it economical and disposable.
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200980145147.7A CN102215761B (zh) | 2008-09-12 | 2009-09-11 | 硬膜外腔定位装置 |
| BRPI0913544A BRPI0913544A2 (pt) | 2008-09-12 | 2009-09-11 | dispositivo de localização do espaço epidural |
| US13/063,838 US9186172B2 (en) | 2008-09-12 | 2009-09-11 | Epidural space locating device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MXMX/A/2008/011713 | 2008-09-12 | ||
| MX2008011713A MX2008011713A (es) | 2008-09-12 | 2008-09-12 | Dispositivo localizador del espacio epidural. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010029428A1 true WO2010029428A1 (es) | 2010-03-18 |
Family
ID=42004841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2009/006833 Ceased WO2010029428A1 (es) | 2008-09-12 | 2009-09-11 | Dispositivo localizador del espacio epidural |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9186172B2 (es) |
| CN (1) | CN102215761B (es) |
| BR (1) | BRPI0913544A2 (es) |
| CO (1) | CO6321146A2 (es) |
| MX (1) | MX2008011713A (es) |
| WO (1) | WO2010029428A1 (es) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2642171A1 (es) * | 2016-05-13 | 2017-11-15 | Juan Carlos GARCÍA PÉREZ | Jeringa médica con indicador de presión |
| WO2018172817A1 (es) * | 2017-03-23 | 2018-09-27 | Velez Rivera Hector De Jesus | Aguja para suministrar un anestésico con orientador luminoso |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10973545B2 (en) | 2002-05-31 | 2021-04-13 | Teleflex Life Sciences Limited | Powered drivers, intraosseous devices and methods to access bone marrow |
| US8641715B2 (en) | 2002-05-31 | 2014-02-04 | Vidacare Corporation | Manual intraosseous device |
| EP2064997B1 (en) | 2002-05-31 | 2011-04-27 | Vidacare Corporation | Apparatus to access the bone marrow |
| US20070049945A1 (en) | 2002-05-31 | 2007-03-01 | Miller Larry J | Apparatus and methods to install, support and/or monitor performance of intraosseous devices |
| US11337728B2 (en) | 2002-05-31 | 2022-05-24 | Teleflex Life Sciences Limited | Powered drivers, intraosseous devices and methods to access bone marrow |
| US8668698B2 (en) | 2002-05-31 | 2014-03-11 | Vidacare Corporation | Assembly for coupling powered driver with intraosseous device |
| US9504477B2 (en) | 2003-05-30 | 2016-11-29 | Vidacare LLC | Powered driver |
| US8944069B2 (en) | 2006-09-12 | 2015-02-03 | Vidacare Corporation | Assemblies for coupling intraosseous (IO) devices to powered drivers |
| US8328738B2 (en) * | 2007-06-29 | 2012-12-11 | Actuated Medical, Inc. | Medical tool for reduced penetration force with feedback means |
| US9987468B2 (en) | 2007-06-29 | 2018-06-05 | Actuated Medical, Inc. | Reduced force device for intravascular access and guidewire placement |
| US10219832B2 (en) | 2007-06-29 | 2019-03-05 | Actuated Medical, Inc. | Device and method for less forceful tissue puncture |
| EP2467057B1 (en) | 2009-08-19 | 2020-07-22 | Medline Industries, Inc., | Systems and devices for facilitating access to target anatomical sites or environments |
| US8814807B2 (en) * | 2009-08-19 | 2014-08-26 | Mirador Biomedical | Spinal canal access and probe positioning, devices and methods |
| US10463838B2 (en) | 2009-08-19 | 2019-11-05 | Medline Industries, Inc | Vascular access methods and devices |
| EP2579765B1 (en) * | 2010-06-13 | 2019-08-07 | Omeq Medical Ltd. | Anatomical-positioning apparatus with an expandable device |
| CN104287821B (zh) * | 2013-08-19 | 2018-08-17 | 池永龙 | 警报开路器 |
| WO2016034910A1 (es) * | 2014-09-02 | 2016-03-10 | Salguero Beltrán Andrés Ernesto | Dispositivo para asistir en la detección de cavidades corporales |
| TWI572387B (zh) | 2014-11-21 | 2017-03-01 | 羅文甫 | 注射器定位裝置 |
| CN104586479B (zh) * | 2015-01-07 | 2016-11-09 | 东南大学 | 一种可自动报警的腹腔镜手术用穿刺装置 |
| US10940292B2 (en) | 2015-07-08 | 2021-03-09 | Actuated Medical, Inc. | Reduced force device for intravascular access and guidewire placement |
| US11793543B2 (en) | 2015-09-18 | 2023-10-24 | Obvius Robotics, Inc. | Device and method for automated insertion of penetrating member |
| CN106618687B (zh) * | 2016-12-09 | 2023-05-26 | 成都五义医疗科技有限公司 | 一种触觉反馈式穿刺针 |
| WO2019210140A1 (en) * | 2018-04-26 | 2019-10-31 | Virginia Commonwealth University | Pressure sensitive needle positioning devices, release mechanisms, and methods |
| CN108888300A (zh) * | 2018-05-21 | 2018-11-27 | 西南医科大学附属中医医院 | 一种适用于消化内镜粘膜下隧道技术的球囊扩张注射针 |
| WO2020076884A1 (en) * | 2018-10-12 | 2020-04-16 | The Regents Of The University Of Michigan | A hand-held, directional, multi-frequency probe for spinal needle placement |
| JP7704737B2 (ja) * | 2019-08-24 | 2025-07-08 | ガイドスター メディカル デバイシズ | 硬膜外腔内の針の検出及び配置のための硬膜外デバイス |
| DE102021210108A1 (de) | 2021-09-14 | 2023-03-16 | B. Braun Melsungen Aktiengesellschaft | Einführanordnung für eine medizinische Invasivkomponente |
| US12426965B2 (en) | 2023-06-15 | 2025-09-30 | Obvius Robotics, Inc. | Image-guided robotic arm for inserting a penetrating member into a body lumen |
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2008
- 2008-09-12 MX MX2008011713A patent/MX2008011713A/es active IP Right Grant
-
2009
- 2009-09-11 WO PCT/IB2009/006833 patent/WO2010029428A1/es not_active Ceased
- 2009-09-11 CN CN200980145147.7A patent/CN102215761B/zh not_active Expired - Fee Related
- 2009-09-11 US US13/063,838 patent/US9186172B2/en active Active
- 2009-09-11 BR BRPI0913544A patent/BRPI0913544A2/pt not_active Application Discontinuation
-
2011
- 2011-04-12 CO CO11045093A patent/CO6321146A2/es active IP Right Grant
Patent Citations (7)
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| WO1992015256A1 (es) * | 1991-02-28 | 1992-09-17 | Industrias Palex, S.A. | Metodo y aparato para localizacion de cavidades anatomicas |
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| KR20020085263A (ko) * | 2001-05-07 | 2002-11-16 | 차은종 | 경막외 마취를 보조하는 경막외강 자동탐지장치 |
| WO2004035104A2 (en) * | 2002-10-15 | 2004-04-29 | Mishail Ishak Ibrahim | Electronic epidural indicator |
| WO2004066853A2 (en) * | 2003-01-28 | 2004-08-12 | Indigo Orb, Inc. | Apparatus and method for detection, especially detection of the puncture of the epidural space |
| WO2006065818A1 (en) * | 2004-12-13 | 2006-06-22 | Smiths Medical Asd. Inc. | Bodily fluid space entry detection |
| CN2852933Y (zh) * | 2005-08-26 | 2007-01-03 | 中国人民解放军第四军医大学 | 硬膜外腔压力检测装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2642171A1 (es) * | 2016-05-13 | 2017-11-15 | Juan Carlos GARCÍA PÉREZ | Jeringa médica con indicador de presión |
| WO2018172817A1 (es) * | 2017-03-23 | 2018-09-27 | Velez Rivera Hector De Jesus | Aguja para suministrar un anestésico con orientador luminoso |
Also Published As
| Publication number | Publication date |
|---|---|
| US9186172B2 (en) | 2015-11-17 |
| CN102215761B (zh) | 2014-09-03 |
| US20110224623A1 (en) | 2011-09-15 |
| MX2008011713A (es) | 2010-03-12 |
| CN102215761A (zh) | 2011-10-12 |
| BRPI0913544A2 (pt) | 2015-11-24 |
| CO6321146A2 (es) | 2011-09-20 |
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