CN113069191A - Puncture cannula for tension pneumothorax clinical first aid - Google Patents

Puncture cannula for tension pneumothorax clinical first aid Download PDF

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Publication number
CN113069191A
CN113069191A CN202110342024.5A CN202110342024A CN113069191A CN 113069191 A CN113069191 A CN 113069191A CN 202110342024 A CN202110342024 A CN 202110342024A CN 113069191 A CN113069191 A CN 113069191A
Authority
CN
China
Prior art keywords
puncture
cannula
patient
assembly
tension pneumothorax
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.)
Pending
Application number
CN202110342024.5A
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Chinese (zh)
Inventor
吴源周
胡佳
李辉
陈群清
王晓武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southern Medical University Zhujiang Hospital
Original Assignee
Southern Medical University Zhujiang Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southern Medical University Zhujiang Hospital filed Critical Southern Medical University Zhujiang Hospital
Priority to CN202110342024.5A priority Critical patent/CN113069191A/en
Publication of CN113069191A publication Critical patent/CN113069191A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/04Artificial pneumothorax apparatus

Abstract

The invention discloses a puncture cannula for tension pneumothorax clinical first aid, which comprises a puncture cannula for puncturing the chest of a patient, wherein the puncture cannula comprises a cannula assembly and a puncture needle, the puncture needle is arranged in the cannula assembly in a penetrating manner to avoid the puncture needle from falling off, the cannula assembly comprises a conduit and a connecting part, the conduit is arranged on the connecting part, a valve cannula is arranged between the conduit and a port of the connecting part, the puncture cannula is decompressed during the tension pneumothorax clinical first aid through the valve cannula, a one-way valve device is not required to be manufactured during the first aid, the patient can be rescued in time, the delay of the treatment of the patient is avoided, the structure is simple, and the operation is convenient.

Description

Puncture cannula for tension pneumothorax clinical first aid
Technical Field
The invention relates to the technical field of medical puncture, in particular to a puncture cannula for clinical first aid of a patient in tension pneumothorax.
Background
In an industrial accident and a traffic accident, if the lung of a wounded person is substantially ruptured, a tension pneumothorax is triggered, high pressure in the thoracic cavity can cause a heartbeat breath to stop in an emergency, and once the high pressure in the thoracic cavity occurs, emergency measures must be taken on site, the existing emergency measures are to reduce the pressure of the thoracic cavity on site through instruments, puncture the pleural cavity by using a thick needle for decompression and externally connect a one-way valve device, but the emergency measures have some problems:
(1) when carrying the wounded, the needle head is easy to fall off and injure the viscera, and the needle head is also easy to block, so that the treatment of the wounded can be influenced, and the life of the wounded can be threatened;
(2) the existing first-aid device has complex operation, which affects the final effect of treatment;
(3) the existing one-way valve device is still manufactured before rescue in an emergency, and the rescue is delayed due to overlong manufacturing time;
(4) the existing one-way valve device has no fixed standard in manufacturing mode or used flow, and the treatment of a patient can be delayed.
The needle head of the existing puncture cannula is easy to slip, the fixing effect is not good, the first aid of a patient is influenced, and the medical rescue work is also influenced to a certain extent to solve the problems of development and the like.
Therefore, there is a need to develop a puncture cannula for clinical emergency treatment of pneumothorax with tension.
Disclosure of Invention
The puncture cannula provided by the invention has the advantages that the fixing effect of the puncture needle and the puncture cannula is good, the needle head movement of a patient in the transfer process is avoided, the puncture cannula is provided with the valve cannula, and the puncture cannula can be automatically suitable for tension pneumothorax clinical first aid.
The technical scheme of the invention is as follows:
the invention provides a puncture cannula for tension pneumothorax clinical first-aid, which comprises a puncture cannula for puncturing the chest of a patient, wherein the puncture cannula comprises a cannula assembly and a puncture needle, the puncture needle is arranged in the cannula assembly in a penetrating manner to avoid the puncture needle from falling off, the cannula assembly comprises a conduit and a connecting part, the conduit is arranged on the connecting part, a valve cannula is arranged between the conduit and a port of the connecting part, and the valve cannula is used for decompressing the puncture cannula during tension pneumothorax clinical first-aid.
Preferably, the terminal of thimble assembly is equipped with first helicitic texture, the terminal of pjncture needle is equipped with second helicitic texture, pjncture needle and thimble assembly carry out threaded connection through helicitic texture in order to prevent that the syringe needle of pjncture needle drops when carrying the patient.
Preferably, the head end of the catheter is provided with a soft part, and the soft part can be automatically curled to enable the puncture cannula to be capable of automatically adapting to the pressure condition in the chest cavity of the patient when the puncture cannula punctures the patient so as to avoid losing the lung tissue of the patient.
Preferably, the valve sleeve comprises two layers of membranes for unidirectional ventilation, each layer of membrane is composed of two mutually symmetrical valves, and the valves are fixed on the inner wall of the connecting part.
Preferably, the sleeve assembly comprises an insertion part, and the insertion part is connected with the connecting part.
Preferably, the implantation part is provided with gelatin sponge, and the cannula assembly performs hemostasis pressurization on the puncture point of the patient through the gelatin sponge.
Preferably, the position that portion and connecting portion link to each other of putting into is equipped with spacing piece, the gelatin sponge subsides are established on spacing piece, spacing piece is spacing to the position of gelatin sponge takes place to become flexible in order to prevent that gelatin sponge from taking place.
Preferably, the limiting sheet is provided with a fixing band, and the fixing band fixes the cannula assembly on the patient so as to realize the puncture fixation of the cannula assembly and the patient.
Preferably, the lower direction of the limiting piece is inclined downwards to form a medicine injection pipe, one end of the medicine injection pipe is provided with a medicine injection side port, the medicine injection side port is connected with the medicine injection pipe, and the cannula assembly injects medicines into a patient and cleans the cannula assembly through the medicine injection side port.
Preferably, the body of the implanting part is provided with at least two side holes, and the cannula assembly drains the catheter through the side holes.
Compared with the prior art, the scheme of the invention at least comprises the following beneficial effects:
(1) the puncture cannula comprises a cannula assembly and a puncture needle, wherein the puncture needle is arranged in the cannula assembly in a penetrating mode so as to avoid the puncture needle from falling off and avoid the phenomenon that the needle head falls off to damage viscera when a patient or an injured person is carried;
(2) the valve sleeve is arranged between the guide pipe and the port of the connecting part, the puncture sleeve is provided with the valve sleeve by the valve sleeve, the puncture sleeve is decompressed during the clinical emergency treatment of the tension pneumothorax by the valve sleeve, and the one-way valve device is not required to be manufactured during the emergency treatment, so that a patient can be rescued in time, the delay of the rescue of the patient is avoided, the structure is simple, the operation is convenient, the problem that the one-way valve device is manufactured in an emergency before the rescue in the prior puncture sleeve technology is solved, and the ordered operation of medical rescue work is ensured;
(3) the soft part is arranged at the head end of the catheter, and the puncture cannula can be automatically adapted to the pressure condition in the thoracic cavity of the patient when being punctured on the patient by automatically curling the soft part, so that the lung tissue of the patient is prevented from being lost, and the comfort level of the patient during rescue is also improved by arranging the soft part.
Drawings
FIG. 1 is a schematic view of the overall structure of a puncture cannula for clinical emergency treatment of tension pneumothorax in accordance with the present invention;
fig. 2 is a schematic structural view of a puncture needle for clinical emergency treatment of tension pneumothorax according to the present invention.
In the figure, a cannula assembly 1, a catheter 11, a connecting part 12, a valve cannula 13, a first thread structure 14, an embedding part 15, a limiting sheet 16, a fixing band 17, a gelatin sponge 18, a medicine injection tube 19, a medicine injection side opening 191, a side opening 120, an extension tube 121, a soft part 122, a puncture needle 2 and a second thread structure 21.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the invention provides a puncture cannula for clinical first aid of tension pneumothorax, which comprises a puncture cannula for puncturing the chest of a patient, wherein the puncture cannula comprises a cannula assembly 1 and a puncture needle 2, and the puncture needle 2 is arranged in the cannula assembly 1 in a penetrating manner, so that the needle head of the puncture needle 2 can be prevented from falling off, and the condition that the needle head falls off to damage viscera when a wounded carries the puncture cannula can be avoided.
In particular, the cannula assembly 1 of the present invention comprises a catheter 11 and a connection portion 12, the catheter 11 being arranged on the connection portion 12, by providing a flap sleeve 13 between the catheter 11 and the port of the connection 12, this flap sleeve 13 is provided so that the puncture sleeve carries the flap sleeve 13, the puncture cannula can reduce the pressure when the puncture cannula carries out the tension pneumothorax clinical first aid to the patient through the valve cannula 13, the gas in the tension pneumothorax of the patient is discharged through the air outlet end of the valve cannula 13, the puncture cannula with the valve cannula 13 of the invention can reduce the pressure and rescue the patient, so that the patient can be rescued in time, the delay of the treatment of the patient is avoided, the puncture cannula device is simple in structure and convenient to operate, and simultaneously solves various problems in emergency manufacture of the one-way valve device before rescue in the existing puncture cannula technology.
According to the invention, the first thread structure 14 is arranged on the inner wall of the tail end of the cannula assembly 1, the second thread structure 21 is arranged on the outer wall of the tail end of the puncture needle 2, the puncture needle 2 and the cannula assembly 1 are in threaded connection through the thread structures, the puncture needle 2 and the cannula assembly 1 are conveniently fixed and detached by adopting the mode of the threaded connection through the thread structures, and meanwhile, the puncture needle 2 can be firmly fixed on the chest wall of a patient in the process of carrying the patient, so that the needle head can not be displaced or fall off, and the first-aid medical cannula has very good application value in emergency treatment; the removal of the needle 2 from the cannula assembly 1 is also facilitated by the screw.
Specifically, the head end of the catheter 11 is provided with the soft part 122, the soft part 122 is automatically curled, so that the puncture cannula can be automatically adapted to the pressure condition in the thoracic cavity of the patient when puncturing the body of the patient, thereby avoiding the loss of the lung tissue of the patient, the soft part 122 is arranged so that the puncture cannula can ensure that the thoracic cavity of the patient is not pressed and the lung tissue is not affected when puncturing the thoracic cavity of the patient, and the patient feels comfortable while the rescue effect is ensured.
Specifically, the valve sleeve 13 of the present invention includes two layers of membranes for one-way ventilation, wherein each layer of membrane is composed of two symmetric valves, the valves are fixed on the inner wall of the connecting portion 12, when the needle core of the puncture needle 2 is pulled out, the two valves are arranged in an arch shape towards the port of the connecting portion 12, when the puncture is performed, the gas is discharged from the inside of the thoracic cavity to the outside, the two valves are opened due to the large pressure in the thoracic cavity, when the outside gas is about to enter the thoracic cavity, the two valves are in an arch shape, and the gas can be prevented from entering the thoracic cavity.
The cannula assembly 1 further comprises an embedding part 15, the embedding part 15 is connected with the connecting part 12, the gelatin sponge 18 is arranged on the embedding part 15, the cannula assembly 1 performs hemostasis pressurization on the puncture point of a patient through the gelatin sponge 18, excessive bleeding of the puncture point of the patient is prevented, the selected gelatin sponge 18 is white or yellowish, is a sponge-like object with light, soft and porous quality, and is good in blood absorption.
Specifically, the position of the connection part 12 of the embedded part 15 is provided with the limiting piece 16, the gelatin sponge 18 is attached to the limiting piece 16, and the position of the gelatin sponge 18 is limited by the limiting piece 16, so that the gelatin sponge 18 is prevented from loosening, and the hemostasis and pressurization of the puncture point are prevented from being influenced.
According to the invention, the fixing belt 17 is arranged on the limiting sheet 16, and the sleeve assembly 1 is fixed on the body of a patient through the fixing belt 17, so that the puncture fixation of the sleeve assembly 1 and the patient is realized, and the development of rescue work is facilitated.
Specifically, the invention forms a medicine injection tube 19 in a downward inclined manner below the limiting piece 16, the medicine injection tube 19 is a communicating tube, one end of the medicine injection tube 19 is provided with a medicine injection side port 191, and the other end of the medicine injection tube 19 is fixed below the limiting piece 16, wherein the medicine injection side port 191 is connected with the medicine injection tube 19, the medicine is injected into the sleeve pipe assembly 1 through the medicine injection side port 191, and the medicine is further injected into a patient through the sleeve pipe assembly 1, and the sleeve pipe assembly 1 is conveniently cleaned through the medicine injection side port 191 and the medicine injection tube 19, so that the sleeve pipe equipment is cleaned and maintained.
At least two side holes 120 are formed in the tube body of the insertion portion 15, specifically, two side holes 120 are formed in the tube body of the insertion portion, and the cannula assembly 1 drains the catheter 11 through the two side holes 120.
Specifically, the tail end of the catheter 11 is provided with a matched extension tube 121, and the extension tube 121 and the catheter 11 are matched and connected with a thoracic drainage bottle.
In particular, with regard to the puncturing process of the present invention:
tool preparation: one set of puncture cannula, one J-shaped guide wire, one expansion tube, one disposable transfusion extension tube 121 and a closed drainage bottle;
firstly, fixing the skin of a puncture point with the left hand and holding the puncture cannula with the right hand;
secondly, the puncture needle 2 of the puncture cannula vertically penetrates along the upper edge of the rib of the puncture point, when the resistance is suddenly reduced, the puncture needle 2 is pumped back, and if gas is pumped out, the puncture needle 2 enters the pleural cavity;
thirdly, pushing the J-shaped guide wire into the thoracic cavity by about 12-15cm from the tail part of the puncture sleeve along the needle core of the puncture needle 2 by the right hand, and withdrawing the puncture needle 2 while fixing the J-shaped guide wire;
then, the J-shaped guide wire is left in the thoracic cavity, and the expansion tube is withdrawn after entering the skin along the guide wire expansion guide wire;
and finally, the catheter 11 rotates along the J-shaped guide wire, is pushed into the thoracic cavity by 12-15cm through skin and chest wall tissues, exits from the J-shaped guide wire after being fixed, is connected with the central venous catheter by the puncture cannula and is pumped back, if gas can be extracted, the catheter 11 of the puncture cannula can be determined to be in the thoracic cavity, the pigtail catheter is arranged along the J-shaped guide wire, the arrangement depth is 12-15cm, and the tail end of the catheter 11 is connected with a drainage bottle through an infusion extension tube 121.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a puncture sleeve pipe of clinical first aid of tension pneumothorax, includes the puncture sleeve pipe that punctures patient's chest, its characterized in that: the utility model discloses a tension pneumothorax puncture device, including puncture sleeve pipe, puncture sleeve pipe includes thimble assembly and pjncture needle, the pjncture needle is worn to establish and is avoided the pjncture needle to drop in the thimble assembly, thimble assembly includes pipe and connecting portion, the pipe is located on the connecting portion, be equipped with the valve sleeve pipe between the port of pipe and connecting portion, the valve sleeve pipe decompresses puncture sleeve pipe when the clinical first aid of tension pneumothorax.
2. The tension pneumothorax emergency puncture cannula of claim 1, wherein: the terminal of thimble assembly is equipped with first helicitic texture, the end of pjncture needle is equipped with second helicitic texture, the pjncture needle and thimble assembly carry out the syringe needle of screwed connection when preventing to carry the patient and drop with the thimble assembly through helicitic texture.
3. The tension pneumothorax emergency puncture cannula of claim 1, wherein: the head end of pipe is provided with the soft portion, the soft portion curls by oneself and can independently adapt to the pressure condition in patient's thorax in order to avoid losing patient's lung tissue when making puncture sleeve pipe puncture on one's body the patient.
4. The tension pneumothorax emergency puncture cannula of claim 1, wherein: the valve sleeve comprises two layers of sac membranes for one-way ventilation, each layer of sac membrane consists of two mutually symmetrical valves, and the valves are fixed on the inner wall of the connecting part.
5. The tension pneumothorax emergency puncture cannula of claim 1, wherein: the sleeve assembly comprises an embedding part, and the embedding part is connected with the connecting part.
6. The tension pneumothorax clinical emergency puncture cannula of claim 5, wherein: the implantation part is provided with gelatin sponge, and the cannula assembly performs hemostasis and pressurization on the puncture point of the patient through the gelatin sponge.
7. The tension pneumothorax clinical emergency puncture cannula of claim 5, wherein: the position that portion and connecting portion link to each other of putting into is equipped with spacing piece, the gelatin sponge subsides are established on spacing piece, spacing piece is spacing to the position of gelatin sponge takes place to become flexible in order to prevent that gelatin sponge from taking place.
8. The tension pneumothorax clinical emergency puncture cannula of claim 7, wherein: the limiting piece is provided with a fixing band, and the sleeve assembly is fixed on the patient by the fixing band so as to realize the fixation of the sleeve assembly and the patient.
9. The tension pneumothorax clinical emergency puncture cannula of claim 5, wherein: the lower direction of the limiting piece is downwards inclined and extends to form a medicine injection pipe, one end of the medicine injection pipe is provided with a medicine injection side port, the medicine injection side port is connected with the medicine injection pipe, and the sleeve pipe assembly is used for injecting medicine into a patient and cleaning the sleeve pipe assembly through the medicine injection side port.
10. The tension pneumothorax clinical emergency puncture cannula of claim 5, wherein: the catheter body of the embedding part is provided with at least two side holes, and the cannula assembly conducts drainage on the catheter through the side holes.
CN202110342024.5A 2021-03-30 2021-03-30 Puncture cannula for tension pneumothorax clinical first aid Pending CN113069191A (en)

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CN202110342024.5A CN113069191A (en) 2021-03-30 2021-03-30 Puncture cannula for tension pneumothorax clinical first aid

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CN202110342024.5A CN113069191A (en) 2021-03-30 2021-03-30 Puncture cannula for tension pneumothorax clinical first aid

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114041858A (en) * 2021-12-07 2022-02-15 苏州美东汇成精密部件有限公司 Disposable puncture needle

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Publication number Priority date Publication date Assignee Title
CN2296729Y (en) * 1997-03-20 1998-11-11 毕宪杰 Disposable thoracico-ascitic fluid drainage device
CN1360668A (en) * 1999-06-15 2002-07-24 艾普万有限公司 Non-return valve
CN101259029A (en) * 2008-04-16 2008-09-10 林平 Disposable thoracic drainage needle
CN201271425Y (en) * 2008-10-04 2009-07-15 朱之国 Closed type disposal drainage device for pneumatothorax puncture
CN202313629U (en) * 2011-10-17 2012-07-11 鞠作泉 Penetrative positioning pleural casing puncture needle
CN202699816U (en) * 2012-05-29 2013-01-30 杨明 Universal oxygen inhalation mask for ophthalmologic operation
CN204016952U (en) * 2014-08-29 2014-12-17 张强 A kind of tension pneumothorax puncture needle group cover
CN204446729U (en) * 2015-02-17 2015-07-08 陈立材 A kind of medical thoracic duction instrument
CN205322878U (en) * 2016-01-27 2016-06-22 金华市中心医院 Be used for one -way exhaust apparatus of paracentetic flap valve formula of tension pneumothorax and combination package thereof
CN206714986U (en) * 2017-01-04 2017-12-08 中国人民解放军第三军医大学第三附属医院 A kind of puncture decompression drainage system
CN109758216A (en) * 2019-03-01 2019-05-17 无锡市人民医院 Bellows compressive puncture outfit and Thoracic gas drainage component
CN109938726A (en) * 2019-04-08 2019-06-28 中国人民解放军陆军特色医学中心 A kind of electrode fixing device
CN110812644A (en) * 2019-11-07 2020-02-21 青岛大学附属医院 Fretwork autogenous cutting metal casing
CN210447156U (en) * 2019-04-16 2020-05-05 佛山市禅城区中心医院有限公司 Portable pneumothorax puncture needle

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2296729Y (en) * 1997-03-20 1998-11-11 毕宪杰 Disposable thoracico-ascitic fluid drainage device
CN1360668A (en) * 1999-06-15 2002-07-24 艾普万有限公司 Non-return valve
CN101259029A (en) * 2008-04-16 2008-09-10 林平 Disposable thoracic drainage needle
CN201271425Y (en) * 2008-10-04 2009-07-15 朱之国 Closed type disposal drainage device for pneumatothorax puncture
CN202313629U (en) * 2011-10-17 2012-07-11 鞠作泉 Penetrative positioning pleural casing puncture needle
CN202699816U (en) * 2012-05-29 2013-01-30 杨明 Universal oxygen inhalation mask for ophthalmologic operation
CN204016952U (en) * 2014-08-29 2014-12-17 张强 A kind of tension pneumothorax puncture needle group cover
CN204446729U (en) * 2015-02-17 2015-07-08 陈立材 A kind of medical thoracic duction instrument
CN205322878U (en) * 2016-01-27 2016-06-22 金华市中心医院 Be used for one -way exhaust apparatus of paracentetic flap valve formula of tension pneumothorax and combination package thereof
CN206714986U (en) * 2017-01-04 2017-12-08 中国人民解放军第三军医大学第三附属医院 A kind of puncture decompression drainage system
CN109758216A (en) * 2019-03-01 2019-05-17 无锡市人民医院 Bellows compressive puncture outfit and Thoracic gas drainage component
CN109938726A (en) * 2019-04-08 2019-06-28 中国人民解放军陆军特色医学中心 A kind of electrode fixing device
CN210447156U (en) * 2019-04-16 2020-05-05 佛山市禅城区中心医院有限公司 Portable pneumothorax puncture needle
CN110812644A (en) * 2019-11-07 2020-02-21 青岛大学附属医院 Fretwork autogenous cutting metal casing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114041858A (en) * 2021-12-07 2022-02-15 苏州美东汇成精密部件有限公司 Disposable puncture needle
CN114041858B (en) * 2021-12-07 2023-12-12 苏州美东汇成精密部件有限公司 Disposable puncture needle

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Application publication date: 20210706