CN110859663B - Simple and convenient thoracic cavity puncture device and application method thereof - Google Patents
Simple and convenient thoracic cavity puncture device and application method thereof Download PDFInfo
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- CN110859663B CN110859663B CN201911322447.XA CN201911322447A CN110859663B CN 110859663 B CN110859663 B CN 110859663B CN 201911322447 A CN201911322447 A CN 201911322447A CN 110859663 B CN110859663 B CN 110859663B
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- 210000000115 thoracic cavity Anatomy 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 127
- 238000005086 pumping Methods 0.000 claims abstract description 123
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 8
- 230000003444 anaesthetic effect Effects 0.000 claims description 36
- 239000008280 blood Substances 0.000 claims description 14
- 210000004369 blood Anatomy 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 238000001802 infusion Methods 0.000 claims description 13
- 206010002091 Anaesthesia Diseases 0.000 claims description 10
- 230000037005 anaesthesia Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 7
- 208000002151 Pleural effusion Diseases 0.000 claims description 7
- 229960002897 heparin Drugs 0.000 claims description 7
- 229920000669 heparin Polymers 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 210000000038 chest Anatomy 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 210000004204 blood vessel Anatomy 0.000 description 12
- 238000003825 pressing Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000005192 partition Methods 0.000 description 6
- 206010051986 Pneumatosis Diseases 0.000 description 4
- 210000004072 lung Anatomy 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000003589 local anesthetic agent Substances 0.000 description 2
- 210000003281 pleural cavity Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical compound CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003601 intercostal effect Effects 0.000 description 1
- 229960004194 lidocaine Drugs 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001936 parietal effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000000779 thoracic wall Anatomy 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a simple and convenient thoracocentesis device, which comprises an outer sleeve, a puncture needle and a bidirectional pushing piece, wherein a needle inlet channel, a liquid containing space and a pumping space which are mutually independent are arranged in the outer sleeve; the bidirectional pushing piece comprises a pushing block, a pushing rod, a pushing needle rod, a pulling rod and a reversing piece, wherein the pushing rod is connected with the pushing block, and one end of the pushing 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 manner, and one end of the pumping rod is positioned in the pumping space; the reversing piece is arranged on the outer sleeve and is positioned between the push needle rod and the suction rod, and the reversing piece is connected with the push needle rod and the suction rod, so that the step of performing thoracocentesis can be simplified. The invention also provides a using method of the simple and convenient thoracic cavity puncture device.
Description
[ Field of technology ]
The invention relates to the technical field of medical equipment, in particular to a simple and convenient thoracic cavity puncture device and a use method thereof.
[ Background Art ]
Thoracocentesis refers to the operation of penetrating the pleural cavity into the pleural cavity by percutaneous, intercostal tissue, and parietal pleural puncture with a sterile needle. In the clinical work of respiratory medicine, thoracocentesis is a relatively common, convenient and easy method of diagnosis and treatment. The general procedure of thoracocentesis by using a thoracocentesis needle in clinic is as follows:
1. Marking the puncture point.
2. Wearing sterile gloves, sterilizing skin conventionally, and covering the sterilized hole towel.
3. The local infiltration anesthesia was performed layer by layer from the skin to the pleural wall layer at the next rib upper edge of the puncture site by drawing 2% lidocaine with a syringe. And (3) injection: the syringe for injecting local anesthetic needs to be withdrawn before each injection of the anesthetic to confirm whether the local anesthetic is punctured into the blood vessel or not, so that the anesthetic is prevented from being pushed into the blood vessel.
4. After anesthesia is finished, a thoracentesis needle is used for puncturing a puncture point, the puncture needle is required to be inserted into the needle and withdrawn simultaneously, so as to observe whether blood is withdrawn, if the blood is in the state, the needle point enters a blood vessel, and the puncture position is required to be immediately stopped and replaced; if no back suction to blood is observed in the needle inserting process, the puncture needle can be continuously puncture and placed into the chest cavity along the chest wall. If the observation is confirmed that the back suction is gas or other non-blood liquid, the thoracic cavity puncture needle is successfully placed in the thoracic cavity, and the next step can be performed for clinical diagnosis and treatment. If only a small amount of effusion is needed for diagnosis, the liquid can be pumped out through the puncture needle. If the pressure of the pleural effusion or the pneumatosis to the lung is relieved by a large amount of liquid suction and pressure reduction, the guide wire guide tube is placed into the thoracic cavity through the puncture needle, then the puncture needle is pulled out, the double-cavity deep venous catheter is placed into the thoracic cavity through the guiding function of the guide wire, and the guide wire is pulled out, so that the purpose of drainage of the pleural effusion through the guide wire guide tube can be achieved.
From the above process, the procedure of performing thoracocentesis requires steps of positioning, sterilizing, towel laying, anesthesia, needle insertion and the like; the anesthesia and needle insertion all need to be withdrawn at any time for judgment, when the thoracic cavity puncture needle is used outdoors or in emergency treatment, the steps can be completed only through the five steps, the synchronous operation of anesthesia, needle insertion and needle withdrawal observation cannot be achieved, time and labor are wasted, and the steps are complicated.
[ Invention ]
The present invention aims to solve at least one of the above-mentioned technical problems, and provides a simple and convenient thoracocentesis device and a use method thereof, which can simplify the steps of thoracocentesis.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A simple and convenient thoracocentesis device comprises an outer sleeve, a puncture needle and a bidirectional pushing piece,
The outer sleeve is internally provided with a needle inlet channel, a liquid containing space and a pumping space, and the needle inlet 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 pumping space are arranged on the wall body of the outer sleeve; the position of the outer sleeve corresponding to the liquid containing space and the pumping space is set as a transparent area;
One end of the puncture needle is arranged in the needle inlet channel and is in sliding connection with the inner wall of the outer sleeve; an anesthetic channel and a liquid suction channel which are mutually independent are arranged in the puncture needle, the anesthetic channel is communicated with the liquid containing space through a liquid conveying hose, and the liquid suction channel is communicated with the liquid suction space through a liquid suction hose; one end of the puncture needle facing the second opening is provided with a liquid outlet and a liquid suction opening, the liquid outlet is positioned between the first opening and the liquid suction opening, the liquid outlet is communicated with the anesthesia channel and the outside of the puncture needle, and the liquid suction opening is communicated with the liquid suction channel and the outside of the puncture needle;
The bidirectional pushing piece comprises a pushing block, a pushing rod, a pushing needle rod, a pumping rod and a reversing piece, and the pushing block is positioned at one side of the outer sleeve, provided with the first opening; the pushing rod passes through the wall body of the outer sleeve in a sliding manner, one end of the pushing rod is connected with the pushing block, and the other end of the pushing rod is positioned in the liquid containing space and is in sliding connection with the inner wall surrounding the liquid containing space; one end of the push needle rod is connected with the pushing block, and the other end of the push needle rod extends into the needle inlet channel and is connected with the puncture needle; one end of the pressure pumping rod is positioned in the pressure pumping space and is in sliding connection with the inner wall surrounding the pressure pumping space, and the other end of the pressure pumping rod extends towards the outer part of the outer sleeve; the reversing piece is arranged on the outer sleeve and is positioned between the push needle rod and the pumping rod, the reversing piece is connected with the push needle rod and the pumping rod, and the push needle rod can drive the pumping rod to slide in the direction away from the pumping space through the reversing piece when being forced to move in the needle inlet channel so as to perform negative pressure pumping operation on the pumping space.
Further, the puncture needle comprises a sliding seat and a needle tube, the sliding seat is in sliding connection with the inner wall of the outer sleeve, and the sliding seat is connected with one end of the push needle rod, which is away from the push block; the needle tube is connected with one end of the sliding seat, which is far away from the pushing block, the anesthesia channel, the liquid outlet and the liquid suction port are all arranged on the needle tube, and the liquid suction channel extends from the needle tube to the sliding seat.
Further, the liquid suction channel extends from the needle tube to the sliding seat and penetrates through one end of the sliding seat, which is away from the second opening; the sliding seat is connected with the push needle rod through a connecting frame, and a reserved gap is arranged on the connecting frame; the outer sleeve is also provided with a preformed hole which is communicated with the needle inlet channel; the simple portable thoracentesis device further comprises a guide wire guide tube and a sealing clamp, wherein the guide wire guide tube penetrates into the needle inlet 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 suction channel; the sealing and pressing clamp is detachably clamped on the guide wire guide tube.
Further, the length of the needle tube is 70mm; the anesthetic channel is a circular channel with the diameter of 1 mm; the liquid suction channel is a circular channel with the diameter of 2 mm; the length of the transfusion hose is 40-50mm; the length of the pumping hose is 40-50mm; the distance between the liquid outlet and the liquid pumping outlet is 30-50mm; the inner diameter of the guide wire guide tube is 2mm.
Further, a avoidance hole is formed in the pushing block in a penetrating manner, so that when the pumping rod moves in a direction away from the pumping space, the avoidance hole can be prevented from moving in a penetrating manner.
Further, the outer sleeve is provided with an avoidance space corresponding to the infusion hose and the pumping hose, and the avoidance space is communicated with the needle inlet channel.
Further, the reversing element is a gear, and the gear is rotatably arranged on the outer sleeve; a driving tooth mark meshed with the gear is arranged on one side, facing the gear, of the push needle rod along the length direction; and a driven gear engaged with the gear is arranged on one side of the pumping rod, facing the gear, along the length direction.
Further, a silica gel heparin cap is arranged on the wall body of the outer sleeve corresponding to the liquid containing space.
The application method of the simple and convenient thoracic cavity puncture device comprises the following steps:
S1, providing a mechanism: providing the simple and convenient thoracocentesis device;
s2, preliminary needle insertion: pushing the pushing block towards the direction of the needle inserting channel;
s3, observing: observing whether the liquid entering the pumping space contains blood or not from a transparent area corresponding to the pumping space;
S4, needle inserting or needle withdrawing is carried out again: when the extracted liquid does not contain blood, continuously pushing the pushing block towards the direction of the needle inserting channel until the extracted liquid is pleural effusion; when it is confirmed that the blood is contained in the extracted liquid, the pusher is pulled away from the needle insertion path, and then the puncture site is replaced and steps S2 to S4 are repeated.
By adopting the technical scheme, the invention has the following beneficial effects:
1. In the initial state, anesthetic is contained in the liquid containing space, and in the process of pushing the pushing block towards the direction of the needle inlet channel, the needle pushing rod pushes the puncture needle towards the second opening and pierces the skin of the chest cavity; meanwhile, the push needle rod drives the pumping rod to slide in a direction away from the pumping space through the reversing piece, the pumping space is pumped to negative pressure, liquid on skin flows into the pumping channel from the liquid 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 is confirmed to not puncture a blood vessel, the puncture needle is continuously pushed towards the inside of the skin by the pushing block, and in the process, the anesthetic is pumped into the anesthetic channel by the pushing rod through the infusion hose and finally oozes out of the liquid outlet to perform local anesthesia on the skin; therefore, through the operation, when a user performs thoracocentesis by using the simple and convenient thoracocentesis device, the back-suction operation does not need to be repeatedly performed, so that the step of performing the thoracocentesis is greatly simplified, and the time for applying medical measures is reduced. 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 draws contains blood, effectively avoids anesthetic to squeeze into in the blood vessel, has reduced the risk of medical malpractice emergence.
2. In the initial state, the sealing and pressing clamp is clamped at the part of the guide wire guide tube, which is positioned outside the outer needle cylinder, so that the pressure pumping rod is convenient to pump pressure; when a great deal of liquid extraction and decompression are needed to relieve the pressure of pleural effusion or pneumatosis on the lung, a deep vein guide wire can be extended from a guide wire guide tube into the chest for relevant treatment operation. Therefore, the arrangement of the guide wire guide tube and the sealing clamp increases the practicability of the simple and convenient thoracic cavity puncture device.
3. The arrangement of the avoidance space facilitates the movement of the infusion hose and the pumping hose along with the movement of the sliding seat when the sliding seat slides along the needle inlet channel, and avoids the clamping of the infusion hose and the pumping hose between the sliding seat and the outer sleeve.
4. When the reversing piece is a gear, the push pin rod is forced to move towards the second opening, the gear is driven to rotate anticlockwise, the gear can drive the pumping rod to move towards the direction away from the pumping space in the anticlockwise rotating process, so that the function of pumping negative pressure to the pumping space is realized, and the mechanism is simple in structure and convenient to operate.
5. A silica gel heparin cap is arranged on the wall body of the outer sleeve corresponding to the liquid containing space, and when the defect of the anesthetic is observed, the anesthetic in the liquid containing space can be supplied through the silica gel heparin cap.
[ Description of the drawings ]
Fig. 1 is a schematic view of a simple and convenient thoracocentesis device according to the present invention.
Fig. 2 is a cross-sectional view taken along line A-A in fig. 1.
Fig. 3 is an enlarged view of fig. 2 at C.
Fig. 4 is a cross-sectional view taken along line B-B in fig. 1.
In the drawing, the device comprises a 1-outer sleeve, a 11-needle inlet channel, a 110-first opening, a 111-second opening, a 12-liquid containing space, a 13-drawing space, a 14-reserved space, a 15-avoiding space, a 2-puncture needle, a 21-sliding seat, a 22-needle tube, a 23-transfusion hose, a 24-drawing hose, a 25-partition plate, a 3-bidirectional pushing piece, a 31-pushing block, a 311-avoidance hole, a 32-pushing rod, a 33-pushing needle rod, a 34-drawing rod, a 35-gear, a 36-connecting frame, a 41-anesthesia channel, a 410-liquid outlet, a 42-drawing channel, a 420-drawing liquid port, a 5-guide wire guide tube, a 6-sealing clamp and a 7-silica gel heparin cap.
[ Detailed description ] of the invention
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein 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. The term "and/or" as used herein 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 and convenient thoracocentesis device, which comprises an outer sleeve 1, a puncture needle 2 and a bidirectional pushing member 3.
The outer sleeve 1 is internally provided with a needle inlet channel 11, a liquid containing space 12 and a pumping space 13 at intervals. The needle inlet 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 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 inlet channel 11; wherein, the liquid containing space 12 is used for containing anesthetic, and the 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 pumping space 13 are set as transparent areas, so that an operator can observe the input condition of anesthetic and observe the pumped liquid conveniently.
One end of the puncture needle 2 is arranged in the needle inlet channel 11 and is connected with the inner wall of the outer sleeve 1 in a sliding way. The puncture needle 2 is internally provided with an anesthetic channel 41 and a liquid suction channel 42 which are mutually independent, the anesthetic channel 41 is communicated with the liquid containing space 12 through a transfusion hose 23, and the liquid suction channel 42 is communicated with the pumping space 13 through a pumping hose 24. The end of the puncture needle 2 facing the second opening 111 is provided with a liquid outlet 410 and a liquid suction opening 420, the liquid outlet 410 is positioned between the first opening 110 and the liquid suction opening 420, so that a distance exists between the liquid outlet 410 and the liquid suction opening 420, and a user can judge whether the extracted liquid contains blood or not in enough time, thereby effectively avoiding anesthetic from being driven into blood vessels and reducing the risk of medical accidents; the liquid outlet 410 is communicated with the anesthetic channel 41 and the outside of the puncture needle 2, and the liquid suction port 420 is communicated with the liquid suction channel 42 and the outside of the puncture needle 2. In this embodiment, the liquid outlet 410 is located immediately adjacent to the sharp end of the needle 2.
The bidirectional pushing piece 3 comprises a pushing block 31, a pushing rod 32, a pushing needle rod 33, a pumping rod 34 and a reversing piece, wherein the pushing block 31 is positioned on one side of the outer sleeve 1 provided with the first opening 110; the pushing rod 32 passes through the wall body of the outer sleeve 1 in a sliding way, one end of the pushing rod 32 is connected with the pushing block 31, and the other end of the pushing rod 32 is positioned in the liquid containing space 12 and is in sliding connection with the inner wall surrounding the liquid containing space 12; one end of the push needle bar 33 is connected with the pushing block 31, and the other end of the push needle bar 33 extends into the needle inlet 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 in sliding connection with the inner wall surrounding the pumping space 13, and the other end of the pumping rod 34 extends to the outside of the outer sleeve 1; the reversing piece is accommodated in the outer sleeve 1 and is arranged between the push rod 33 and the pumping rod 34, and the reversing piece is connected with the push rod 33 and the pumping rod 34, so that the pumping rod 34 can be driven to slide in a direction away from the pumping space 13 through the reversing piece when the push rod 33 moves towards the needle inlet channel 11 under the stress, and the pumping space 13 is pumped with negative pressure. In this 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. A driving gear mark capable of being meshed with the gear 35 is arranged on one side of the push pin rod 33 facing the gear 35 along the length direction; the side of the pumping rod 34 facing the gear 35 is provided with a passive toothing capable of being meshed with the gear 35 along the length direction. The push rod 33 is forced to move towards the second opening 111 and drives the gear 35 to rotate anticlockwise, and the gear 35 can drive the pumping rod 34 to move towards a direction away from the pumping space 13 in the anticlockwise rotation process, so that the function of pumping negative pressure to the pumping space 13 is realized, and the mechanism is simple in structure and convenient to operate.
In the initial state, anesthetic is contained in the liquid containing space 12, and in the process of pushing the pushing block 31 towards the needle inlet channel 11, the needle pushing rod 33 pushes the puncture needle 2 out towards the second opening 111, so that the puncture needle 2 is pricked into the skin; meanwhile, the push rod 33 drives the pumping rod 34 to slide towards a direction away from the second opening 111 through the reversing piece, the pumping space 13 is pumped to negative pressure, and liquid on the skin flows into the pumping channel 42 from the pumping port 420 under the action of the negative pressure, and at the moment, the form of the pumped liquid can be observed from a transparent area corresponding to the pumping space 13, so as to judge whether the puncture needle 2 punctures a blood vessel. When it is confirmed that the puncture needle 2 does not puncture the blood vessel, the puncture needle 2 is continuously pushed toward the inside of the skin by the pushing block 31, and in this process, the pushing rod 32 pumps the anesthetic into the anesthetic channel 41 through the infusion hose 23 and finally oozes out from the liquid outlet 410 to locally anesthetize the skin. Therefore, through the operation, when a user performs thoracocentesis by using the simple and convenient thoracocentesis device, the back-suction operation does not need to be repeatedly performed, so that the step of performing the thoracocentesis is greatly simplified, and the time for applying medical measures is reduced.
In the present embodiment, the puncture needle 2 includes a slide seat 21 and a needle tube 22. The sliding seat 21 is in sliding connection with the inner wall of the outer sleeve 1, and the sliding seat 21 is connected with one end of the push needle rod 33, which is away from the push block 31. Needle cannula 22 is connected to the end of sliding seat 21 facing away from propulsion block 31, and anesthetic passageway 41, liquid outlet 410 and liquid outlet 420 are all disposed on needle cannula 22, with liquid outlet 42 extending from needle cannula 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 anesthetic channel 41. One end of the pumping hose 24 is connected with the bottom of the sliding seat 21 corresponding to the position of the pumping channel 42, and the other end of the pumping hose 24 is connected with the bottom of the pumping space 13 corresponding to the outer sleeve 1.
In the present embodiment, the liquid suction passage 42 extends from the needle tube 22 to the slide holder 21 and penetrates an end of the slide holder 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 arranged on the connecting frame 36. The outer sleeve 1 is also provided with a preformed hole which is communicated with the needle inlet channel 11. The simple and convenient thoracentesis device also comprises a guide wire guide tube 5 and a sealing and pressing clamp 6, wherein the guide wire guide tube 5 penetrates into the needle inlet channel 11 from a preformed hole and is connected with the sliding seat 21 after passing through a preformed gap 14, and the guide wire guide tube 5 is communicated with the liquid suction channel 42; the sealing clamp 6 is detachably clamped on the guide wire guide tube 5. In the initial state, the sealing and pressing clamp 6 is clamped at the part of the guide wire guide tube 5, which is positioned outside the outer needle cylinder 1, and at the moment, the pumping and pressing rod 34 is convenient for pumping and pressing work; if the pressure of the pleural effusion or the pneumatosis on the lung is required to be relieved by a large amount of liquid suction, the sealing clamp 6 is opened, so that the deep vein guide wire can be extended from the guide wire guide tube 5 and extend from the liquid suction port 420 to the inner part of the chest for relevant treatment operation. Therefore, the arrangement of the guide wire guide tube 5 and the sealing and pressing clamp 6 increases the practicability of the simple and convenient thoracocentesis device.
In the present embodiment, a partition plate 25 is provided in the needle tube 22. One end of the partition plate 25 is fixed to the slide 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 channel 41 and an aspiration channel 42 are formed in the needle tube 22 independently of each other. One end of the pumping hose 24 communicates with the pumping channel 42, and the other end of the pumping hose 24 communicates with the pumping space 13.
In the present embodiment, the length of needle cannula 22 is 70mm, and the distance from the end of needle cannula 22 facing away from one end of slide base 21, i.e., the end of the sharp end of needle cannula 22, to second opening 111 in the initial state is 50mm. The anesthetic channel 41 is a circular channel with a diameter of 1 mm. The liquid-drawing channel 42 is a circular channel with a diameter of 2mm. The length of the infusion hose 23 is 40-50mm, preferably the length of the infusion hose 23 is 50mm. The length of the pumping hose 24 is 40-50mm, preferably the pumping hose 24 is 50mm. The outlet 410 is spaced from the outlet 420 by a distance of 30-50mm, preferably the outlet 410 is spaced from the outlet 420 by a distance of 50mm. The inner diameter of the guide wire guide tube 5 is 2mm. The dimensions of the outer sleeve 1 are designed according to the above dimensions, which are conventional technical means for a person skilled in the art and will not be described in detail here.
In this embodiment, a avoidance hole 311 is formed in the pushing block 31 in a penetrating manner, and when the pumping rod 34 moves in a direction away from the pumping space 13, the pumping rod 34 can move through the avoidance hole 311 to avoid.
In the present embodiment, the outer sleeve 1 is provided with the escape space 15 corresponding to the infusion hose 23 and the pressure suction hose 24, and the escape space 15 communicates with the needle insertion passage 11. When the sliding seat 21 slides along the needle inlet channel 11, the movement of the infusion hose 23 and the pumping hose 24 along with the movement of the sliding seat 21 is facilitated, and the clamping of the infusion hose 23 and the pumping hose 24 between the sliding seat 21 and the outer sleeve 1 is avoided.
In this embodiment, a silica gel heparin cap 7 is disposed on the wall of the outer sleeve 1 corresponding to the liquid containing space 12. When the anesthetic is insufficient, the anesthetic in the liquid containing space 12 can be replenished through the silicone heparin cap 7.
The simple and convenient thoracic cavity puncture device comprises the following using method: in the initial state, the liquid containing space 12 contains anesthetic, the sealing and pressing clamp 6 clamps the part of the guide wire guide tube 5 outside the outer needle cylinder 1, the pushing block 31 is pushed towards the direction of the needle inlet channel 11, the pushing rod 33 pushes the sliding seat 21 towards the second opening 111 and pierces the needle tube 22 into the skin, meanwhile, the pushing rod 33 drives the gear 35 to rotate anticlockwise, the gear 35 drives the pumping rod 34 to move towards the direction away from the second opening 111 in the anticlockwise rotating process, the pumping space 13 is pumped to negative pressure, 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, and at the moment, whether the pumped liquid contains blood or not is observed from a transparent area corresponding to the pumping space 13, so as to judge whether the needle tube 22 pierces the blood vessel. When it is confirmed that needle cannula 22 does not penetrate the blood vessel, needle cannula 22 is advanced toward the interior of the skin of the chest cavity by pusher block 31, whereupon plunger rod 32 drives anesthetic from fluid holding space 12 through infusion hose 23 into anesthetic passageway 41 and finally out of outlet 410 to locally anesthetize the skin. When it is confirmed that the needle tube 22 has penetrated the blood vessel, the pushing block 31 is immediately withdrawn in a direction away from the needle insertion channel 11, the anesthetic is returned to the liquid containing space 12, and the withdrawal plunger 34 pushes the withdrawn liquid out of the needle tube 22, and the penetration site is replaced.
When the pressure of the pleural effusion or the pneumatosis on the lung needs to be relieved through a large amount of liquid suction and pressure reduction, the sealing and pressing clamp 6 is taken down, and the deep vein guide wire is stretched into the chest from the guide wire guide tube 5 to perform relevant treatment operation.
It will be appreciated that the reversing element is not limited to being housed within the outer sleeve 1 in this embodiment, but in other embodiments the reversing element may be secured to the outside of the outer sleeve 1 by a securing rod.
It will be appreciated that the drainage channel 42 may not penetrate the sliding seat 21, and at this time, the drainage channel 42 is communicated with the drainage space 13 through the drainage hose 24, and the simple and convenient thoracic cavity puncture device is not provided with the guide wire guide tube 5, and correspondingly, is not provided with the reserved gap 14 and the reserved hole.
It will be appreciated that when the distance between the pushing block 31 and the end of the pumping rod 34 located outside the outer sleeve 1 is sufficiently large, the pushing block 31 may not be provided with the avoidance hole 311, and when the pumping rod 34 moves in a direction away from the pumping space 13, the end of the pumping rod 34 located outside the outer sleeve 1 is not locked by the pushing block 31 and cannot move.
In other embodiments, the reversing element may include a rotating shaft (not shown) rotatably mounted on the outer sleeve 1, and a pulling cord (not shown) having one end fixed to the end of the push rod 33 located in the needle insertion channel 11 and the other end fixed to the end of the pull rod 34 located in the suction space 13 by bypassing the rotating shaft. When the push rod 33 is forced to move towards the second opening 111, one end of the pumping rod 34 positioned in the pumping space 13 can be pulled by the pulling rope to slide towards the first opening 110, so that negative pressure is formed in the pumping space 13, and the mechanism has a simple structure and is easy to operate.
It will be appreciated that the needle tube 22 may be formed into the anesthetic channel 41 and the liquid-drawing channel 42 without 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 is provided with the anesthetic channel 41, the side tube is connected with the sliding seat 21 and extends toward the second opening 111, the side tube is communicated with the liquid-drawing hose 23, and one end of the side tube facing away from the sliding seat 21 is provided with the liquid outlet 410; a liquid suction 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 tube 5 so that the liquid suction channel 42 is communicated with the inside of the guide wire guide tube 5, one end, facing away from the pushing block 31, of the main pipe extends towards the second opening 111, and a liquid suction port 420 is formed in the one end; the pumping hose 24 extends into the sliding seat 21 and is connected with the side wall of the main pipe.
It will be appreciated that the dimensions of needle cannula 22, anesthetic passageway 41, aspiration passageway 42, infusion hose 23, aspiration hose 24, outlet 410 and aspiration port 420 are not limited to the dimensions of the present embodiment, and those skilled in the art may design the dimensions according to the needs of the manufacturing and practical application.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (9)
1. A simple and convenient thoracic cavity puncture device is characterized in that: comprises an outer sleeve (1), a puncture needle (2) and a bidirectional pushing piece (3),
A needle inlet channel (11), a liquid containing space (12) and a pumping space (13) are arranged in the outer sleeve (1), and the needle inlet 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 pumping space (13) are arranged on the wall body of the outer sleeve (1) and are respectively positioned at two opposite sides of the needle inlet channel (11); the position of the outer sleeve (1) corresponding to the liquid containing space (12) and the pumping space (13) is set as a transparent area;
One end of the puncture needle (2) is arranged in the needle inlet channel (11) and is in sliding connection with the inner wall of the outer sleeve (1); an anesthetic channel (41) and a liquid pumping channel (42) which are mutually independent are arranged in the puncture needle (2), the anesthetic 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 liquid pumping space (13) through a pumping hose (24); one end of the puncture needle (2) facing the second opening (111) is provided with a liquid outlet (410) and a liquid suction port (420), the liquid outlet (410) is positioned between the first opening (110) and the liquid suction port (420), the liquid outlet (410) is communicated with the anesthesia channel (41) and the outside of the puncture needle (2), and the liquid suction port (420) is communicated with the liquid suction channel (42) and the outside of the puncture needle (2);
The bidirectional pushing piece (3) comprises a pushing block (31), a pushing rod (32), a pushing needle rod (33), a pumping pressure rod (34) and a reversing piece, wherein the pushing block (31) is positioned on one side of the outer sleeve (1) provided with the first opening (110); the pushing rod (32) slidably penetrates through the wall body of the outer sleeve (1), one end of the pushing rod (32) is connected with the pushing block (31), and the other end of the pushing rod (32) is positioned in the liquid containing space (12) and slidably connected with the inner wall surrounding the liquid containing space (12); one end of the push needle bar (33) is connected with the pushing block (31), and the other end of the push needle bar (33) extends into the needle inlet channel (11) and is connected with the puncture needle (2); one end of the pumping rod (34) is positioned in the pumping space (13) and is in sliding connection with the inner wall surrounding the pumping space (13), and the other end of the pumping rod (34) extends towards the outside of the outer sleeve (1); the reversing piece is arranged on the outer sleeve (1) and is positioned between the push needle rod (33) and the pumping rod (34), the reversing piece is connected with the push needle rod (33) and the pumping rod (34), and the push needle rod (33) can drive the pumping rod (34) to slide in a direction far away from the pumping space (13) through the reversing piece when being forced to move in the needle inlet channel (11) so as to perform negative pressure pumping operation on the pumping space (13).
2. The simplified portable thoracic cavity puncturing device of claim 1 wherein: the puncture needle (2) comprises a sliding seat (21) and a needle tube (22), the sliding seat (21) is in sliding connection with the inner wall of the outer sleeve (1), and the sliding seat (21) is connected with one end of the push needle rod (33) which is away from the push block (31); needle tubing (22) with sliding seat (21) deviate from the one end of advancing 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) are extended to sliding seat (21).
3. The facile and convenient chest puncturing device of claim 2, wherein: the liquid suction channel (42) extends from the needle tube (22) to the sliding seat (21) and penetrates through one end of the sliding seat (21) away from the second opening (111); the sliding seat (21) is connected with the push needle bar (33) through a connecting frame (36), and a reserved gap (14) is arranged on the connecting frame (36); the outer sleeve (1) is also provided with a preformed hole which is communicated with the needle inlet channel (11); the simple and convenient thoracic cavity puncture device further comprises a guide wire guide tube (5) and a sealing clamp (6), wherein the guide wire guide tube (5) penetrates into the needle inlet 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 suction channel (42); the sealing clamp (6) is detachably clamped on the guide wire guide tube (5).
4. The simplified portable thoracic cavity puncturing device of claim 3 wherein: the length of the needle tube (22) is 70mm; the anesthetic channel (41) is a circular channel with the diameter of 1 mm; the liquid suction channel (42) is a circular channel with the diameter of 2 mm; the length of the transfusion hose (23) is 40-50mm; the length of the pumping hose (24) is 40-50mm; the distance between the liquid outlet (410) and the liquid pumping port (420) is 30-50mm; the inner diameter of the guide wire guide tube (5) is 2mm.
5. The simplified portable thoracic cavity puncturing device of claim 1 wherein: the pushing block (31) is provided with a avoidance hole (311) in a penetrating manner, so that the avoidance hole (311) can be avoided in a penetrating manner when the pumping rod (34) moves in a direction away from the pumping space (13).
6. The simplified portable thoracic cavity puncturing device of claim 1 wherein: the outer sleeve (1) is provided with an avoidance space (15) corresponding to the infusion hose (23) and the pumping hose (24), and the avoidance space (15) is communicated with the needle inlet channel (11).
7. The facile and convenient chest puncturing device of one of claims 1 to 5, wherein: the reversing piece is a gear (35), and the gear (35) is rotationally arranged on the outer sleeve (1); a driving tooth mark meshed with the gear (35) is arranged on one side of the push needle rod (33) facing the gear (35) along the length direction; and a driven tooth mark meshed with the gear (35) is arranged on one side of the pumping rod (34) facing the gear (35) along the length direction.
8. The simplified portable thoracic cavity puncturing device of claim 1 wherein: the wall body of the outer sleeve (1) corresponding to the liquid containing space (12) is provided with a silica gel heparin cap (7).
9. The application method of the simple and convenient thoracic cavity puncture device is characterized by comprising the following steps of:
S1, providing a mechanism: providing the simplified portable thoracic puncturing device of claim 1;
s2, initial stepping needle: pushing the pushing block (31) towards the needle inserting channel (11);
S3, observing: observing whether the liquid entering the pumping space (13) contains blood or not from a transparent area corresponding to the pumping space (13);
S4, needle inserting or withdrawing again: when the extracted liquid is confirmed to contain no blood, the pushing block (31) is continuously pushed towards the direction of the needle inlet channel (11) until the extracted liquid is pleural effusion; when it is confirmed that the blood is contained in the liquid to be withdrawn, the pushing block (31) is pulled away from the needle insertion path (11), and then the puncture site is replaced and steps S2 to S4 are repeated.
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| CN201911322447.XA CN110859663B (en) | 2019-12-20 | 2019-12-20 | Simple and convenient thoracic cavity puncture device and application method thereof |
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| CN111449732B (en) * | 2020-04-10 | 2021-02-05 | 孔令刚 | Drainage puncture device for cardiology |
| CN112604038B (en) * | 2020-12-18 | 2023-04-28 | 温州市中心医院 | Cardiovascular intervention puncture drainage device |
| CN113397662B (en) * | 2021-06-17 | 2022-12-09 | 黎涛 | Puncture device for thoracic surgery |
| CN113952008B (en) * | 2021-12-23 | 2022-05-24 | 真健康（北京）医疗科技有限公司 | Cross-drive type puncture needle inserting mechanism and needle puncturing device |
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| WO2017113852A1 (en) * | 2015-12-30 | 2017-07-06 | 江苏阳普医疗科技有限公司 | Medical catheter assembly with non-detachable puncture needle |
| CN211484832U (en) * | 2019-12-20 | 2020-09-15 | 右江民族医学院附属医院 | Simple and easy portable thorax puncture device |
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| US10046147B2 (en) * | 2013-12-26 | 2018-08-14 | Critical Innovations, LLC | Percutaneous access pathway system and method |
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| WO2017113852A1 (en) * | 2015-12-30 | 2017-07-06 | 江苏阳普医疗科技有限公司 | Medical catheter assembly with non-detachable puncture needle |
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