CN211484832U

CN211484832U - Simple and easy portable thorax puncture device

Info

Publication number: CN211484832U
Application number: CN201922318822.5U
Authority: CN
Inventors: 黄彬; 曹聪; 覃栩; 李俊
Original assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Current assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-15
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a simple portable thoracic cavity puncture device, which comprises an outer sleeve, a puncture needle and a bidirectional propelling piece, wherein the outer sleeve is internally provided with a needle feeding channel, a liquid containing space and a pumping space which are mutually independent; the bidirectional propelling part comprises a propelling block, a pushing plug rod, a pushing needle rod, a pressure pumping rod and a reversing part, the pushing plug rod is connected with the propelling block, and one end of the pushing plug rod is positioned in the liquid containing space; the push needle rod is connected with the push block, extends towards the inside of the needle inlet channel and is connected with the puncture needle; the pumping rod passes through the wall body of the outer sleeve in a sliding way, and one end of the pumping rod is positioned in the pumping space; the reversing element is arranged on the outer sleeve and positioned between the push needle rod and the pumping and pressing rod, and the reversing element is connected with the push needle rod and the pumping and pressing rod, so that the step of performing thoracocentesis can be simplified.

Description

Simple and easy portable thorax puncture device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to simple and easy portable thorax puncture device.

Background

Thoracentesis refers to the operation of puncturing the skin, intercostal tissues, and parietal pleura with a sterile puncture needle into the pleural cavity. In the clinical work of respiratory medicine, thoracentesis is a relatively common, convenient and simple diagnosis and treatment method. The general process of performing thoracocentesis clinically by using a thoracocentesis needle is as follows:

1. the puncture site is marked.

2. Wearing sterile gloves, disinfecting skin by routine, and covering with a sterilized hole towel.

3. Local infiltration anesthesia is performed layer by layer from the skin to the parietal pleura by extracting 2% lidocaine from the upper edge of the next rib at the puncture point with an injector. Note: before each injection of the anesthetic, the anesthetic is required to be withdrawn to confirm whether the injector for injecting the local anesthetic punctures the blood vessel or not and prevent the anesthetic from being pushed into the blood vessel.

4. After anesthesia is finished, puncturing is carried out at a puncturing point by using a thoracic cavity puncture needle, the puncture needle needs to be inserted and withdrawn simultaneously to observe whether blood is withdrawn, if blood exists, the needle point enters a blood vessel, the puncturing position needs to be immediately stopped and then replaced; if no blood is back pumped in the process of needle insertion, the puncture needle can be continuously placed into the thoracic cavity along the chest wall. If the gas or other non-blood liquid is finally confirmed to be pumped back, the thoracocentesis needle is successfully placed in the thoracic cavity, and the next step can be carried out for clinical diagnosis and treatment. If only a small amount of effusion needs to be extracted for diagnosis, the puncture needle can be used for extracting the effusion. If a large amount of liquid is pumped and decompressed to relieve the oppression of pleural effusion or pneumatosis to the lungs, the guide wire guide tube is put into the thoracic cavity through the puncture needle, then the puncture needle is pulled out, the double-cavity deep venous catheter is put into the thoracic cavity through the guide function of the guide wire, and the guide wire is pulled out, thus achieving the purpose of draining the pleural effusion through the guide wire guide tube.

From the above processes, the process of performing thoracocentesis requires steps of positioning, sterilizing, towel spreading, anaesthetizing, puncturing, and the like; and anesthesia and needle insertion all need to withdraw constantly and judge, when outdoor or when carrying out the first aid, utilize prior art's thorax pjncture needle to need just can accomplish through above-mentioned five steps, can not accomplish anesthesia, puncture needle insertion and withdraw and observe and go on in step, waste time and energy, the step is loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problems provided by the above, and provides a simple and convenient thoracocentesis device, which can simplify the steps of thoracocentesis.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

a simple and convenient thoracic cavity puncture device, which comprises an outer sleeve, a puncture needle and a bidirectional propelling piece,

the outer sleeve is internally provided with a needle inserting channel, a liquid containing space and a pressure pumping space, and the needle inserting channel penetrates through the outer sleeve to form a first opening and a second opening at two opposite ends of the outer sleeve respectively; the liquid containing space and the pressure pumping space are both arranged on the wall body of the outer sleeve; the outer sleeve positions corresponding to the liquid containing space and the pressure pumping space are set as transparent areas;

one end of the puncture needle is arranged in the needle inserting channel and is in sliding connection with the inner wall of the outer sleeve; an anesthesia channel and a liquid pumping channel which are mutually independent are arranged in the puncture needle, the anesthesia channel is communicated with the liquid containing space through a transfusion hose, and the liquid pumping channel is communicated with the pressure pumping space through a pressure pumping hose; a liquid outlet and a liquid pumping port are arranged at one end, facing the second opening, of the puncture needle, the liquid outlet is located between the first opening and the liquid pumping port, the liquid outlet is communicated with the anesthesia channel and the outer portion of the puncture needle, and the liquid pumping port is communicated with the liquid pumping channel and the outer portion of the puncture needle;

the bidirectional propelling part comprises a propelling block, a pushing plug rod, a pushing needle rod, a pressure pumping rod and a reversing part, and the propelling block is positioned on one side of the outer sleeve, which is provided with the first opening; the pushing rod penetrates through the wall body of the outer sleeve in a sliding mode, one end of the pushing rod is connected with the pushing block, and the other end of the pushing rod is located in the liquid containing space and is connected with the inner wall which is surrounded into the liquid containing space in a sliding mode; one end of the push needle rod is connected with the push block, and the other end of the push needle rod extends into the needle inserting channel and is connected with the puncture needle; one end of the pumping rod is positioned in the pumping space and is in sliding connection with the inner wall which surrounds the pumping space, and the other end of the pumping rod extends towards the outside of the outer sleeve; the reversing element is arranged on the outer sleeve and is positioned between the push needle rod and the pressure pumping rod, the reversing element is connected with the push needle rod and the pressure pumping rod, and the pressure pumping rod can be driven by the reversing element to slide towards the direction far away from the pressure pumping space when the push needle rod moves towards the needle inserting channel under the stress, so that the pressure pumping space can be subjected to negative pressure pumping work.

Furthermore, the puncture needle comprises a sliding seat and a needle tube, the sliding seat is connected with the inner wall of the outer sleeve in a sliding manner, and the sliding seat is connected with one end of the push needle rod, which is far away from the push block; the needle tube with the sliding seat deviates from the one end of propulsion piece is connected, anesthesia passageway, liquid outlet and drawing liquid mouth all set up on the needle tube, drawing liquid passageway follow the needle tube extends to the sliding seat.

Further, the liquid extracting channel extends from the needle tube to the sliding seat and penetrates through one end of the sliding seat, which faces away from the second opening; the sliding seat is connected with the push needle rod through a connecting frame, and a reserved gap is formed in the connecting frame; the outer sleeve is also provided with a preformed hole which is communicated with the needle inserting channel; the simple and convenient thoracic cavity puncture device further comprises a guide wire guide tube and a sealing and pressing clamp, the guide wire guide tube penetrates into the needle inserting channel from the reserved hole and is connected with the sliding seat after passing through the reserved gap, and the guide wire guide tube is communicated with the liquid pumping channel; the sealing and pressing clamp is detachably clamped on the guide wire guide tube.

Further, the length of the needle tube is 70 mm; the anesthesia channel is a circular channel with the diameter of 1 mm; the liquid pumping channel is a circular channel with the diameter of 2 mm; the length of the transfusion hose is 40-50 mm; the length of the pumping hose is 40-50 mm; the distance between the liquid outlet and the liquid pumping port is 30-50 mm; the internal diameter of the guide wire guide tube is 2 mm.

Furthermore, a position avoiding hole is formed in the pushing block in a penetrating mode, so that when the pumping rod moves towards the direction far away from the pumping space, the position avoiding hole can be penetrated and moved to avoid the position avoiding hole.

Furthermore, the outer sleeve is provided with an avoiding space corresponding to the infusion hose and the pressure pumping hose, and the avoiding space is communicated with the needle inserting channel.

Further, the reversing element is a gear which is rotatably arranged on the outer sleeve; one side of the push needle rod facing the gear is provided with a driving tooth print meshed with the gear along the length direction; one side of the pumping rod, which faces the gear, is provided with a driven tooth print meshed with the gear along the length direction.

Furthermore, a silica gel heparin cap is arranged on the wall body of the outer sleeve corresponding to the liquid containing space.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

1. in the initial state, the liquid containing space is filled with anesthetic, and the needle pushing rod pushes the puncture needle out towards the second opening and punctures the skin in the thoracic cavity in the process of pushing the pushing block towards the direction of the needle inserting channel; meanwhile, the push needle rod drives the pumping rod to slide towards the direction far away from the pumping space through the reversing piece, the pumping space is pumped to negative pressure, liquid on the skin flows into the pumping channel from the pumping port under the action of the negative pressure, and at the moment, whether the pumped liquid contains blood or not can be observed from a transparent area corresponding to the pumping space so as to judge whether the puncture needle punctures a blood vessel or not; when the puncture needle does not puncture a blood vessel, the puncture needle is continuously pushed towards the interior of the skin by the pushing block, and in the process, the pushing rod drives anesthetic into the anesthetic channel through the infusion hose and finally seeps out of the liquid outlet to perform local anesthesia on the skin; therefore, through the operation, when the simple and convenient thoracocentesis device is used for thoracocentesis, a user does not need to repeatedly perform withdrawal operation, the steps of thoracocentesis are greatly simplified, and the time for applying medical measures is shortened. In addition, because the liquid outlet is located between first opening and the drawing liquid mouth for there is the distance between liquid outlet and the drawing liquid mouth, this distance makes the user have sufficient time to judge whether the liquid that extracts contains blood, effectively avoids during narcotic drug squeezes into the blood vessel, has reduced the risk that medical malpractice takes place.

2. In an initial state, the sealing and pressing clamp is clamped on the part of the guide wire guide tube positioned outside the outer needle cylinder, so that the pressure pumping rod can conveniently perform pressure pumping work; if the pressure of pleural effusion or pneumatosis on the lung needs to be relieved by massive liquid pumping and decompression, a deep vein guide wire can be extended into the interior of the thoracic cavity from a guide wire guide tube for related treatment operation. Therefore, the arrangement of the guide wire guide tube and the sealing and pressing clamp increases the practicability of the simple and convenient thoracic cavity puncture device.

3. The avoiding space is arranged, so that the infusion hose and the pumping hose can move along with the movement of the sliding seat when the sliding seat slides along the needle inserting channel, and the infusion hose and the pumping hose are prevented from being clamped between the sliding seat and the outer sleeve.

4. When the reverse piece is the gear, push away the needle bar atress and drive the gear towards anticlockwise rotation towards the in-process of second opening motion, gear anticlockwise rotation's in-process can drive the pressure lever and move towards the direction of keeping away from the pressure space of taking out to the realization is taken out the function of negative pressure to the pressure space of taking out, and this mechanism sets up simple structure, and easy and simple to handle.

5. The outer sleeve is equipped with a silica gel heparin cap on the wall body that corresponds flourishing liquid space, is observing that the narcotic is not enough, can supply the narcotic in flourishing liquid space through silica gel heparin cap.

Drawings

Fig. 1 is a schematic structural view of the simple portable thorax puncture device of the present invention.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged view at C in fig. 2.

Fig. 4 is a cross-sectional view taken along line B-B of fig. 1.

In the attached drawing, 1-an outer sleeve, 11-a needle inserting channel, 110-a first opening, 111-a second opening, 12-a liquid containing space, 13-a pumping space, 14-a reserved gap, 15-an avoiding space, 2-a puncture needle, 21-a sliding seat, 22-a needle tube, 23-a transfusion hose, 24-a pumping hose, 25-a partition plate, 3-a bidirectional propelling piece, 31-a propelling block, 311-an avoiding hole, 32-a pushing rod, 33-a pushing rod, 34-a pumping rod, 35-a gear, 36-a connecting frame, 41-an anesthesia channel, 410-a liquid outlet, 42-a liquid extracting channel, 420-a liquid extracting port, 5-a guide wire guide tube, 6-a sealing clamp and 7-a silica gel heparin cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, a preferred embodiment of the present invention provides a simple portable thoracic cavity puncturing device, which comprises an outer sleeve 1, a puncturing needle 2 and a bidirectional pushing member 3.

The outer sleeve 1 is provided with a needle inserting channel 11, a liquid containing space 12 and a pressure pumping space 13 at intervals. The needle inserting channel 11 penetrates the outer sleeve 1 to form a first opening 110 and a second opening 111 at two opposite ends of the outer sleeve 1 respectively; the liquid containing space 12 and the pressure pumping space 13 are distributed in the wall body of the outer sleeve 1 and are respectively positioned at two opposite sides of the needle inserting channel 11; wherein, the liquid containing space 12 is used for containing anesthetic, and the pressure pumping space 13 is used for storing pumped liquid. The positions of the outer sleeve 1 corresponding to the liquid containing space 12 and the pressure pumping space 13 are set as transparent areas, so that an operator can conveniently observe the input condition of the anesthetic and the extracted liquid.

One end of the puncture needle 2 is arranged in the needle inserting channel 11 and is connected with the inner wall of the outer sleeve 1 in a sliding way. An anesthesia channel 41 and a liquid drawing channel 42 which are mutually independent are arranged in the puncture needle 2, the anesthesia channel 41 is communicated with the liquid containing space 12 through a transfusion hose 23, and the liquid drawing channel 42 is communicated with the pressure drawing space 13 through a pressure drawing hose 24. A liquid outlet 410 and a liquid pumping port 420 are arranged at one end, facing the second opening 111, of the puncture needle 2, the liquid outlet 410 is positioned between the first opening 110 and the liquid pumping port 420, so that a distance exists between the liquid outlet 410 and the liquid pumping port 420, and the distance enables a user to have enough time to judge whether the pumped liquid contains blood, thereby effectively avoiding anesthetic from being pumped into blood vessels and reducing the risk of medical accidents; the liquid outlet 410 communicates the anesthetic passage 41 with the outside of the puncture needle 2, and the liquid drawing port 420 communicates the liquid drawing passage 42 with the outside of the puncture needle 2. In this embodiment, the exit orifice 410 is located immediately adjacent the sharp end of the needle 2.

The bidirectional propelling component 3 comprises a propelling block 31, a pushing plug rod 32, a pushing needle rod 33, a drawing and pressing rod 34 and a reversing component, wherein the propelling block 31 is positioned at one side of the outer sleeve 1 provided with the first opening 110; the push-plug rod 32 passes through the wall body of the outer sleeve 1 in a sliding way, one end of the push-plug rod 32 is connected with the push block 31, and the other end of the push-plug rod 32 is positioned in the liquid containing space 12 and is connected with the inner wall which is enclosed to form the liquid containing space 12 in a sliding way; one end of the push rod 33 is connected with the push block 31, and the other end of the push rod 33 extends into the needle inserting channel 11 and is connected with the puncture needle 2; the pumping rod 34 passes through the wall body of the outer sleeve 1 in a sliding manner, one end of the pumping rod 34 is positioned in the pumping space 13 and is connected with the inner wall which surrounds the pumping space 13 in a sliding manner, and the other end of the pumping rod 34 extends to the outside of the outer sleeve 1; the reversing element is accommodated in the outer sleeve 1 and is arranged between the push needle rod 33 and the pressure pumping rod 34, the reversing element is connected with both the push needle rod 33 and the pressure pumping rod 34, and when the push needle rod 33 is forced to move towards the needle inserting channel 11, the reversing element can drive the pressure pumping rod 34 to slide towards the direction far away from the pressure pumping space 13, so as to perform negative pressure pumping work on the pressure pumping space 13. In the present embodiment, the reversing element is a gear 35, the gear 35 is rotatably mounted on the outer sleeve 1, specifically, a cross bar (not labeled) is fixed on the inner wall of the outer sleeve 1, and the gear 35 is rotatably mounted on the cross bar. The push needle rod 33 is provided with a driving tooth print capable of being meshed with the gear 35 along the length direction towards one side of the gear 35; one side of the drawing rod 34 facing the gear 35 is provided with a passive tooth print capable of meshing with the gear 35 along the length direction. The push needle bar 33 is forced to drive the gear 35 to rotate anticlockwise in the process of moving towards the second opening 111, the gear 35 can drive the pumping rod 34 to move towards the direction far away from the pumping space 13 in the anticlockwise rotating process, so that the function of pumping negative pressure to the pumping space 13 is realized, and the mechanism is simple in structure and easy and convenient to operate.

In the initial state, the liquid containing space 12 is filled with anesthetic, and in the process of pushing the pushing block 31 towards the needle inserting channel 11, the needle pushing rod 33 pushes the puncture needle 2 towards the second opening 111, and the puncture needle 2 punctures into the skin; meanwhile, the needle pushing rod 33 drives the pumping rod 34 to slide towards the direction far away from the second opening 111 through the reversing piece, the pumping space 13 is pumped to negative pressure, liquid on the skin flows into the pumping channel 42 from the pumping port 420 under the action of the negative pressure, and the form of the pumped liquid can be observed from the transparent area corresponding to the pumping space 13 at the moment, so as to judge whether the puncture needle 2 punctures the blood vessel. When it is confirmed that the puncture needle 2 has not punctured the blood vessel, the puncture needle 2 is continuously pushed toward the inside of the skin by the push block 31, and in the process, the plunger rod 32 pushes the anesthetic into the anesthetic passage 41 through the infusion hose 23 and finally oozes out from the liquid outlet 410 to perform local anesthesia on the skin. Therefore, through the operation, when the simple and convenient thoracocentesis device is used for thoracocentesis, a user does not need to repeatedly perform withdrawal operation, the steps of thoracocentesis are greatly simplified, and the time for applying medical measures is shortened.

In the present embodiment, the puncture needle 2 includes a slider 21 and a needle tube 22. The sliding seat 21 is connected with the inner wall of the outer sleeve 1 in a sliding way, and the sliding seat 21 is connected with one end of the pushing rod 33, which is far away from the pushing block 31. Needle tube 22 is connected with one end of sliding seat 21 far away from pushing block 31, anesthesia channel 41, liquid outlet 410 and liquid drawing port 420 are all arranged on needle tube 22, and liquid drawing channel 42 extends from needle tube 22 to sliding seat 21. One end of the transfusion hose 23 is connected with the bottom of the outer sleeve 1 corresponding to the liquid containing space 12, and the other end of the transfusion hose 23 is connected with the top of the needle tube 22 corresponding to the anesthesia channel 41. One end of the pumping hose 24 is connected to the bottom of the sliding seat 21 at a position corresponding to the pumping passage 42, and the other end of the pumping hose 24 is connected to the bottom of the outer sleeve 1 corresponding to the pumping space 13.

In this embodiment, aspiration channel 42 extends from needle cannula 22 to slide block 21 and through the end of slide block 21 facing away from second opening 111. The sliding seat 21 is connected with the pushing needle bar 33 through a connecting frame 36, and the connecting frame 36 is provided with a reserved gap 14. The outer sleeve 1 is also provided with a preformed hole which is communicated with the needle inserting channel 11. The simple and convenient thoracic cavity puncture device further comprises a guide wire guide tube 5 and a sealing and pressing clamp 6, the guide wire guide tube 5 penetrates into the needle insertion channel 11 from the reserved hole and is connected with the sliding seat 21 after passing through the reserved gap 14, and the guide wire guide tube 5 is communicated with the liquid pumping channel 42; the sealing and pressing clamp 6 can be detachably clamped on the guide wire guide tube 5. In the initial state, the sealing clamp 6 is clamped at the part of the guide wire guide tube 5 positioned outside the outer needle cylinder 1, so that the pressure pumping rod 34 can conveniently perform pressure pumping work; if the pressure of pleural effusion or pneumatosis is relieved by massive fluid extraction and decompression, the sealing clamp 6 is opened, and a deep vein guide wire can be extended from the guide wire guide tube 5 and extended from the fluid extraction port 420 into the interior of the thoracic cavity for related treatment operation. Therefore, the arrangement of the guide wire guide tube 5 and the sealing clamp 6 increases the practicability of the simple and convenient thoracic cavity puncture device.

In the present embodiment, a spacer 25 is provided in the needle tube 22. One end of the partition plate 25 is fixed to the sliding seat 21, the other end of the partition plate 25 extends toward the second opening 111, the periphery of the partition plate 25 is fixedly connected to the inner wall of the needle tube 22, and an anesthetic passage 41 and a fluid-drawing passage 42 are formed in the needle tube 22 independently of each other. One end of the pumping hose 24 communicates with the pumping passage 42, and the other end of the pumping hose 24 communicates with the pumping space 13.

In the present embodiment, needle cannula 22 has a length of 70mm, and in the initial state, the end of needle cannula 22 facing away from one end of slide holder 21, i.e., the end of the sharpened end of needle cannula 22, is spaced from second opening 111 by a distance of 50 mm. The anesthetic passage 41 is a circular passage with a diameter of 1 mm. The liquid-extracting passage 42 is a circular passage having a diameter of 2 mm. The length of the infusion hose 23 is 40-50mm, and preferably, the length of the infusion hose 23 is 50 mm. The length of the suction hose 24 is 40-50mm, and preferably, the length of the suction hose 24 is 50 mm. The distance between the liquid outlet 410 and the liquid extraction port 420 is 30-50mm, and preferably, the distance between the liquid outlet 410 and the liquid extraction port 420 is 50 mm. The guide wire guide tube 5 has an inner diameter of 2 mm. The dimensions of the outer sleeve 1 are designed according to the above-mentioned dimensions, which design is routine for a person skilled in the art and will not be described in further detail here.

In the present embodiment, a clearance hole 311 is formed through the propelling block 31, and when the pumping rod 34 moves in a direction away from the pumping space 13, the pumping rod 34 can move through the clearance hole 311 to be cleared.

In the present embodiment, the outer sleeve 1 is provided with the escape space 15 corresponding to the infusion hose 23 and the suction hose 24, and the escape space 15 communicates with the needle insertion passage 11. When the sliding seat 21 slides along the needle insertion channel 11, the infusion hose 23 and the pressure suction hose 24 can move conveniently along with the movement of the sliding seat 21, and the infusion hose 23 and the pressure suction hose 24 are prevented from being clamped between the sliding seat 21 and the outer sleeve 1.

In the present embodiment, a silica gel heparin cap 7 is disposed on the wall body of the outer sleeve 1 corresponding to the liquid containing space 12. When insufficient anesthetic is observed, the anesthetic in the liquid holding space 12 can be replenished through the silicone heparin cap 7.

The simple and convenient thoracic cavity puncture device is used by the following method: in the initial state, the liquid containing space 12 contains anesthetic, the pressure-sealing clamp 6 is clamped at the part of the guide wire guiding tube 5 located outside the outer needle cylinder 1, the pushing block 31 is pushed towards the direction of the needle inserting channel 11, the pushing rod 33 pushes the sliding seat 21 towards the second opening 111 and causes the needle tube 22 to prick the skin, meanwhile, the pushing rod 33 drives the gear 35 to rotate counterclockwise, the pumping rod 34 is driven to move towards the direction away from the second opening 111 in the process of counterclockwise rotation of the gear 35, the pressure in the pumping space 13 is pumped to negative pressure, the liquid on the skin flows into the pumping space 13 from the pumping port 420 and the pumping channel 42 under the action of the negative pressure, at this time, whether the pumped liquid contains blood or not is observed from the transparent area corresponding to the pumping space 13, so as to judge whether the needle tube 22 punctures the blood vessel or not. When it is confirmed that the needle cannula 22 has not pierced the blood vessel, the needle cannula 22 is continuously pushed toward the inside of the skin of the thoracic cavity by the pushing block 31, and in the process, the plunger rod 32 pushes the anesthetic from the liquid holding space 12 into the anesthetic passage 41 through the infusion hose 23 and finally oozes out from the liquid outlet 410 to perform local anesthesia on the skin. When it is confirmed that the needle tube 22 has punctured the blood vessel, the pushing block 31 is immediately pulled out in a direction away from the needle insertion path 11, the anesthetic is returned to the liquid containing space 12, the pressure lever 34 pushes the pulled liquid out of the needle tube 22, and the puncture site is replaced.

When a large amount of liquid is pumped and decompressed to relieve the pressure of pleural effusion or pneumatosis on the lung, the blocking and pressing clamp 6 is removed, and the deep venous guide wire is extended into the interior of the thoracic cavity from the guide wire guide tube 5 for related treatment operation, which is a routine medical operation for the technicians in the field and is not described herein again.

It will be appreciated that the reversing element is not limited to being received within the outer sleeve 1 in this embodiment, and in other embodiments the reversing element may be secured to the exterior of the outer sleeve 1 by a securing rod.

It can be understood that the fluid-pumping channel 42 may not penetrate through the sliding seat 21, and at this time, the fluid-pumping channel 42 is communicated with the pumping space 13 through the pumping hose 24, and the simple and convenient thoracic cavity puncturing device is not provided with the guide wire guide tube 5, and correspondingly, the preformed space 14 and the preformed hole are not provided.

It will be appreciated that when the distance between the pushing block 31 and the end of the pumping rod 34 outside the outer sleeve 1 is large enough, the pushing block 31 may not be provided with the clearance hole 311, and when the pumping rod 34 moves away from the pumping space 13, the end of the pumping rod 34 outside the outer sleeve 1 is not locked by the pushing block 31 and cannot move.

In other embodiments, the reversing element may comprise a rotating shaft (not shown) rotatably mounted on the outer sleeve 1, and a pulling rope (not shown) having one end fixed to the pushing rod 33 at the end located in the needle inserting passage 11 and the other end fixed to the end of the pressure rod 34 located in the pressure space 13 by passing around the rotating shaft. When the push needle bar 33 is forced to move towards the second opening 111, the end of the compression rod 34 in the compression space 13 can be pulled by the traction rope to slide towards the first opening 110, so that negative pressure is formed in the compression space 13.

It is understood that the needle tube 22 may not form the anesthesia channel 41 and the fluid-pumping channel 42 by providing the partition plate 25, and in other embodiments, the needle tube 22 includes a side tube and a main tube, the side tube and the main tube are integrally formed, wherein the side tube has the anesthesia channel 41 therein, the side tube is connected with the sliding seat 21 and extends toward the second opening 111, the side tube is communicated with the infusion hose 23, and one end of the side tube facing away from the sliding seat 21 is provided with the fluid outlet 410; a liquid extracting channel 42 is arranged in the main pipe, the main pipe penetrates through the sliding seat 21, one end of the main pipe facing the pushing block 31 extends towards the second opening 111, the opening of the main pipe facing the pushing block 31 is connected with the guide wire guide pipe 5 so that the liquid extracting channel 42 is communicated with the inside of the guide wire guide pipe 5, one end of the main pipe, which is far away from the pushing block 31, extends towards the second opening 111, and the other end of the main pipe is provided with a liquid extracting port 420; the pumping hose 24 extends into the sliding seat 21 and is connected with the side wall of the main pipe.

It is understood that the needle cannula 22, the anesthetic passage 41, the fluid drawing passage 42, the infusion tube 23, the pressure suction tube 24, the distance between the fluid outlet 410 and the fluid drawing port 420, and the size of the guide wire guide 5 are not limited to those in the present embodiment, and in other embodiments, those skilled in the art can design the size according to the production and practical application requirements.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a simple and easy portable thorax puncture device which characterized in that: comprises an outer sleeve (1), a puncture needle (2) and a bidirectional propelling piece (3),

a needle inserting channel (11), a liquid containing space (12) and a pressure pumping space (13) are arranged in the outer sleeve (1), the needle inserting channel (11) penetrates through the outer sleeve (1) to form a first opening (110) and a second opening (111) at two opposite ends of the outer sleeve (1) respectively; the liquid containing space (12) and the pressure pumping space (13) are both arranged on the wall body of the outer sleeve (1); the positions of the outer sleeve (1) corresponding to the liquid containing space (12) and the pressure pumping space (13) are set as transparent areas;

one end of the puncture needle (2) is arranged in the needle inserting channel (11) and is in sliding connection with the inner wall of the outer sleeve (1); an anesthesia channel (41) and a liquid pumping channel (42) which are mutually independent are arranged in the puncture needle (2), the anesthesia channel (41) is communicated with the liquid containing space (12) through a transfusion hose (23), and the liquid pumping channel (42) is communicated with the pressure pumping space (13) through a pressure pumping hose (24); a liquid outlet (410) and a liquid extracting port (420) are arranged at one end, facing the second opening (111), of the puncture needle (2), the liquid outlet (410) is located between the first opening (110) and the liquid extracting port (420), the liquid outlet (410) is communicated with the anesthesia channel (41) and the outer portion of the puncture needle (2), and the liquid extracting port (420) is communicated with the liquid extracting channel (42) and the outer portion of the puncture needle (2);

the bidirectional propelling part (3) comprises a propelling block (31), a pushing rod (32), a pushing rod (33), a pressure pumping rod (34) and a reversing part, and the propelling block (31) is positioned on one side of the outer sleeve (1) provided with the first opening (110); the push-plug rod (32) penetrates through the wall body of the outer sleeve (1) in a sliding mode, one end of the push-plug rod (32) is connected with the push block (31), and the other end of the push-plug rod (32) is located in the liquid containing space (12) and is connected with the inner wall which is surrounded to form the liquid containing space (12) in a sliding mode; one end of the push needle rod (33) is connected with the push block (31), and the other end of the push needle rod (33) extends into the needle inserting channel (11) and is connected with the puncture needle (2); one end of the compression rod (34) is positioned in the compression space (13) and is in sliding connection with the inner wall which encloses the compression space (13), and the other end of the compression rod (34) extends towards the outside of the outer sleeve (1); the reversing piece is arranged on the outer sleeve (1) and located between the push needle rod (33) and the pressure pumping rod (34), the reversing piece is connected with the push needle rod (33) and the pressure pumping rod (34), and when the push needle rod (33) is stressed to move towards the needle feeding channel (11), the pressure pumping rod (34) can be driven by the reversing piece to slide towards the direction far away from the pressure pumping space (13) so as to perform negative pressure pumping work on the pressure pumping space (13).

2. The easy and convenient thoracentesis device of claim 1 wherein: the puncture needle (2) comprises a sliding seat (21) and a needle tube (22), the sliding seat (21) is connected with the inner wall of the outer sleeve (1) in a sliding manner, and the sliding seat (21) is connected with one end, deviating from the pushing block (31), of the pushing rod (33); needle tubing (22) with sliding seat (21) deviates from the one end of propulsion piece (31) is connected, anesthesia passageway (41), liquid outlet (410) and drawing liquid mouth (420) all set up on needle tubing (22), drawing liquid passageway (42) follow needle tubing (22) extend to sliding seat (21).

3. The easy and convenient thoracentesis device of claim 2 wherein: the liquid extracting channel (42) extends from the needle tube (22) to the sliding seat (21) and penetrates through one end of the sliding seat (21) facing away from the second opening (111); the sliding seat (21) is connected with the push needle rod (33) through a connecting frame (36), and a reserved gap (14) is formed in the connecting frame (36); the outer sleeve (1) is also provided with a preformed hole which is communicated with the needle inserting channel (11); the simple and convenient thoracic cavity puncture device further comprises a guide wire guide tube (5) and a sealing and pressing clamp (6), the guide wire guide tube (5) penetrates into the needle inserting channel (11) from the preformed hole and is connected with the sliding seat (21) after passing through the preformed gap (14), and the guide wire guide tube (5) is communicated with the liquid pumping channel (42); the sealing and pressing clamp (6) can be detachably clamped on the guide wire guide tube (5).

4. The easy and convenient thoracentesis device of claim 3 wherein: the length of the needle tube (22) is 70 mm; the anesthesia channel (41) is a circular channel with the diameter of 1 mm; the liquid pumping channel (42) is a circular channel with the diameter of 2 mm; the length of the transfusion hose (23) is 40-50 mm; the length of the pressure suction hose (24) is 40-50 mm; the distance between the liquid outlet (410) and the liquid pumping port (420) is 30-50 mm; the inner diameter of the guide wire guide tube (5) is 2 mm.

5. The easy and convenient thoracentesis device of claim 1 wherein: the pushing block (31) is provided with a position avoiding hole (311) in a penetrating mode, so that when the pumping rod (34) moves towards the direction far away from the pumping space (13), the position avoiding hole (311) can be moved in a penetrating mode to avoid.

6. The easy and convenient thoracentesis device of claim 1 wherein: the outer sleeve (1) is provided with an avoidance space (15) corresponding to the infusion hose (23) and the pressure pumping hose (24), and the avoidance space (15) is communicated with the needle inserting channel (11).

7. The easy and convenient thoracentesis device of any of claims 1 to 5 wherein: the reversing piece is a gear (35), and the gear (35) is rotatably arranged on the outer sleeve (1); one side of the push needle rod (33) facing the gear (35) is provided with a driving tooth print meshed with the gear (35) along the length direction; one side of the drawing and pressing rod (34) facing the gear (35) is provided with a driven tooth print meshed with the gear (35) along the length direction.

8. The easy and convenient thoracentesis device of claim 1 wherein: the outer sleeve (1) is provided with a silica gel heparin cap (7) corresponding to the wall body of the liquid containing space (12).