CN108784754B - Lung puncture biopsy device - Google Patents
Lung puncture biopsy device Download PDFInfo
- Publication number
- CN108784754B CN108784754B CN201810349147.XA CN201810349147A CN108784754B CN 108784754 B CN108784754 B CN 108784754B CN 201810349147 A CN201810349147 A CN 201810349147A CN 108784754 B CN108784754 B CN 108784754B
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- China
- Prior art keywords
- movable rod
- cylinder
- fixed
- rubber buffer
- fixed plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
-
- 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
Abstract
The invention discloses a lung puncture biopsy device, which comprises a needle cylinder, a push rod and a needle body, wherein a first fixing plate and a second fixing plate are arranged inside the needle cylinder, a liquid inlet pipe and a liquid guide pipe are arranged on the first fixing plate, one end of the liquid inlet pipe is arranged outside the needle cylinder, the second fixed plate is arranged at one side of the first fixed plate, the second fixed plate is provided with two fixed sleeves, a first movable rod and a second movable rod are respectively arranged in the two fixed sleeves, one end of the first movable rod is connected with the end of the liquid inlet pipe by installing a first rubber plug, a first compression spring is installed on the outer side of the first movable rod, the both ends of first compression spring are connected with first rubber buffer, fixed sleeve's terminal surface respectively, the second rubber buffer is installed to the one end that fixed sleeve was kept away from to the second movable rod. The invention is convenient and quick to use, effectively prevents the sample from flowing back in the sampling process, and can carry out sampling for many times.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a lung puncture biopsy device.
Background
The lung puncture biopsy is an important measure for diagnosing and treating lung diseases, at present, a puncture needle is mainly used for puncture clinically by means of guidance of a CT detector and then is connected with an injector for suction, the existing puncture needle is simple in structure and inconvenient to use in the using process, and difficulty is added to medical workers in the operation process.
The prior puncture needle has the following defects:
1. the hollow needle carries out puncture biopsy through negative pressure suction, and after the tissue is sucked, because the pressure in the cavity is negative pressure, the pintle is easily reset to push out the tissue, so that the sample backflow is caused, and the sampling difficulty is increased.
2. Simple structure, in the operation process, single puncture can only carry out once and take a sample, and simultaneously in the sample process, the volume of sample is injectd by the pulling length of push rod.
Disclosure of Invention
The invention aims to provide a lung puncture biopsy device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: including cylinder, push rod and needle body, the inside of cylinder is provided with first fixed plate and second fixed plate, install feed liquor pipe and catheter on the first fixed plate, the outside at the cylinder is installed to the one end of feed liquor pipe, the one side at installation first fixed plate is installed to the second fixed plate, install two fixed sleeves on the second fixed plate, two fixed sleeve's inside install first movable rod, second movable rod respectively, the one end of first movable rod is connected through the end department of installing first rubber buffer and feed liquor pipe, first compression spring is installed in the outside of first movable rod, first compression spring's both ends are connected with first rubber buffer, fixed sleeve's terminal surface respectively, the second movable rod is kept away from fixed sleeve's one end and is installed the second rubber buffer, second compression spring is installed through the connecting plate in the middle part outside of second movable rod, the other end of second compression spring and the side fixed connection of first fixed plate, the elastic membrane is installed in one side of second fixed plate to the inside of cylinder, the fluid-discharge tube is installed in one side of feed liquor pipe to the terminal surface of cylinder, the terminal surface of fluid-discharge tube is provided with the third rubber buffer, the inside at the cylinder is installed to the one end of push rod, the push rod is fixed in the inside one end of cylinder and is provided with the piston, the fixed push pedal that is provided with of the other end of push rod, the needle body passes through the connecting piece and is connected with feed liquor pipe end department.
Furthermore, the whole needle cylinder is made of transparent materials.
Furthermore, the number of the second compression springs is four, and the four second compression springs are uniformly arranged on the side face of the connecting plate.
Furthermore, the end surface of one end of the liquid guide pipe is flush with the side surface of the first fixing plate, and the end surface of the liquid discharge pipe is flush with the inner side cylinder wall of the syringe.
Further, first sealing washer is all installed with the junction of feed liquor pipe, the junction of second rubber buffer and catheter to first rubber buffer.
Furthermore, two fixed sleeves respectively with first movable rod, the outside junction of second movable rod all install the second sealing washer.
Furthermore, a limiting block is fixedly arranged on one side, away from the second fixing plate, of the inner side cylinder wall of the needle cylinder through the elastic membrane.
Furthermore, the inside of connecting piece is through setting up the external screw thread that internal thread and feed liquor pipe end department outside set up and closing soon.
Further, first rubber buffer keeps away from setting up to the taper in first movable rod one side, and the diameter of first rubber buffer is greater than the diameter of feed liquor pipe.
Further, one side that the second rubber buffer is close to the second movable rod sets up to the taper, the diameter of second rubber buffer is greater than the diameter of catheter.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging a first fixing plate and a second fixing plate, a liquid inlet pipe and a liquid guide pipe are arranged on the first fixing plate through arranging a through hole, two fixing sleeves are arranged on the second fixing plate, a first movable rod and a second movable rod are respectively arranged in the two fixing sleeves, the end of the first movable rod is connected with the end of the liquid inlet pipe through arranging a first rubber plug, the end of the second movable rod is connected with the end of the liquid guide pipe through a second rubber plug, an elastic membrane is arranged on one side of the second fixing plate, the first movable rod is moved through a drawing push plate, sampling is carried out, after single sampling is finished, the second movable rod can be moved through pressing the push plate, a sample is moved to one side of the first fixing plate far away from the second movable plate through the liquid guide pipe, so that the drawing push plate can be repeatedly pressed, sampling for a plurality of times is carried out, and the backflow of the sample is, the use is convenient and quick;
2. set up the connecting piece through the end department at the needle body, close soon through the external screw thread that sets up the internal thread and feed liquor pipe end department outside in the inside of connecting piece, and then effectually prevented that the needle body from droing to be convenient for change different needle bodies, the inside of cylinder sets up the stopper in one side that the second fixed plate was kept away from to the elastic membrane simultaneously, pressing the in-process of push pedal, can effectually prevent that the piston is direct to contact with the elastic membrane, and then prevent that the elastic membrane from damaging.
Drawings
FIG. 1 is a schematic view of the overall structure of a lung puncture biopsy device according to the present invention;
FIG. 2 is an enlarged view at A of FIG. 1 of a lung piercing biopsy device of the present invention;
FIG. 3 is a right side view of a first fixation plate of a lung puncture biopsy device of the present invention.
In FIGS. 1-3: 1-a needle cylinder; 2-a push rod; 3-a needle body; 4-a first fixing plate; 5-a second fixing plate; 6-liquid inlet pipe; 7-a catheter; 8-fixing the sleeve; 9-a first movable bar; 10-a second movable bar; 11-a first rubber stopper; 12-a first compression spring; 13-a second rubber plug; 14-a second compression spring; 15-an elastic film; 16-a drain pipe; 17-a third rubber plug; 18-a piston; 19-push plate; 20-a limiting block; 21-connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: including cylinder 1, push rod 2 and needle body 3, the inside of cylinder 1 is provided with first fixed plate 4 and second fixed plate 5, install feed liquor pipe 6 and catheter 7 on the first fixed plate 4, the outside at cylinder 1 is installed to the one end of feed liquor pipe 6, one side at installation first fixed plate 4 is installed to second fixed plate 5, install two fixed sleeves 8 on the second fixed plate 5, two fixed sleeves 8's inside install first movable rod 9, second movable rod 10 respectively, the one end of first movable rod 9 is connected through the end department of installation first rubber buffer 11 with feed liquor pipe 6, first compression spring 12 is installed in the outside of first movable rod 9, the both ends of first compression spring 12 are connected with the terminal surface of first rubber buffer 11, fixed sleeve 8 respectively, second rubber buffer 13 is installed to the one end that fixed sleeve 8 was kept away from to second movable rod 10, second compression spring 14 is installed through the connecting plate in the middle part outside of second movable rod 10, the other end of second compression spring 14 and the side fixed connection of first fixed plate 4, elastic membrane 15 is installed in one side of second fixed plate 5 in the inside of cylinder 1, fluid-discharge tube 16 is installed in one side of feed liquor pipe 6 to the terminal surface of cylinder 1, fluid-discharge tube 16's terminal surface is provided with third rubber buffer 17, the inside at cylinder 1 is installed to the one end of push rod 2, push rod 2 is fixed in the inside one end of cylinder 1 and is provided with piston 18, the fixed push pedal 19 that is provided with of the other end of push rod 2, needle body 3 is connected through connecting piece and 6 end departments of feed liquor pipe.
The syringe 1 is integrally made of transparent materials, so that the volume of a sample in the syringe 1 can be observed conveniently from the outside.
The number of the second compression springs 14 is four, and the four second compression springs 14 are uniformly arranged on the side face of the connecting plate, so that the second movable rod 10 is uniformly stressed in the moving process, and the sample is effectively prevented from flowing back from the inside of the needle cylinder 1 in the sample extracting process.
The end face of one end of the liquid guide tube 7 is flush with the side face of the first fixing plate 4, and the end face of the liquid discharge tube 16 is flush with the inner side wall of the syringe 1, so that a sample can smoothly enter the liquid guide tube 7 from one side of the first fixing plate 4, and the sample can be effectively and smoothly taken out from the syringe 1.
Two fixed sleeves 8 all install the second sealing washer with the outside junction of first movable rod 9, second movable rod 10 respectively, guarantee that the pressure in the device is stable, can make first movable rod 9, second movable rod 10 remove smoothly at the in-process of pressure boost or decompression.
The inner side cylinder wall of the needle cylinder 1 is fixedly provided with a limiting block 20 at one side of the elastic membrane 15 far away from the second fixing plate 5, so that the position of the piston 18 is limited, and the elastic membrane 15 is effectively prevented from being damaged.
The inside of connecting piece 21 is through setting up the external screw thread that the internal thread set up with the 6 end outsides of feed liquor pipe end department and closing soon, guarantees that the needle body 3 is connected stably with cylinder 1 to be convenient for change.
One side of second rubber buffer 13 near second movable rod 10 sets up to the taper, the diameter of second rubber buffer 13 is greater than the diameter of catheter 7.
The working principle is as follows: when a sample is extracted, the needle body 3 is inserted into the body of a patient, the push rod 2 and the push plate 19 are pulled to one side far away from the needle cylinder 1, so that the pressure between the piston 18 and the elastic membrane 15 is reduced, the elastic membrane 15 is close to one side of the piston 18, in the pulling process, due to the pressure difference, the first movable rod 9 and the second movable rod 10 both move to one side close to the elastic membrane 15, in the moving process of the first movable rod 9, the first compression spring 12 is compressed, so that the sample in the body enters between the first fixing plate 4 and the second fixing plate 5 through the liquid inlet pipe 6, meanwhile, as the end of the second movable rod 10 is provided with the second rubber plug 13 outside the liquid guide pipe 7, the second movable rod 10 cannot move at the moment, the continuous sampling is ensured in the process of pulling the push rod 2, when the push rod 2 is kept still, under the action of the first compression spring 12, first movable rod 9 and first rubber buffer 11 reset, after the single sample was accomplished, to the end press push plate 19 that is close to cylinder 1, and then increase the pressure between elastic membrane 15 and the piston 18, first movable rod 9 can not remove this moment, second movable rod 10 removes to the one end of keeping away from elastic membrane 15, make first fixed plate 4, sample between the second fixed plate 5 passes through catheter 7 and removes the one side that first fixed plate 4 is close to fluid-discharge tube 16, push plate 19 is pressed to relapse pull, and then can carry out a lot of samplings, can effectually prevent the sample backward flow simultaneously, after the sample is accomplished, through opening third rubber buffer 17, take out the inside sample of cylinder 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lung puncture biopsy ware, includes cylinder (1), push rod (2) and needle body (3), its characterized in that: the inside of cylinder (1) is provided with first fixed plate (4) and second fixed plate (5), install feed liquor pipe (6) and catheter (7) on first fixed plate (4), the outside in cylinder (1) is installed to the one end of feed liquor pipe (6), one side at installation first fixed plate (4) is installed in second fixed plate (5), install two fixed sleeve (8) on second fixed plate (5), two the inside of fixed sleeve (8) install first movable rod (9), second movable rod (10) respectively, the one end of first movable rod (9) is connected through the end department of installing first rubber buffer (11) and feed liquor pipe (6), first compression spring (12) are installed in the outside of first movable rod (9), the both ends of first compression spring (12) respectively with first rubber buffer (11) The terminal surface of fixed sleeve (8) is connected, the one end that fixed sleeve (8) was kept away from in second movable rod (10) is installed second rubber buffer (13), second compression spring (14) are installed through the connecting plate in the middle part outside of second movable rod (10), the other end of second compression spring (14) and the side fixed connection of first fixed plate (4), the inside of cylinder (1) is installed elastic membrane (15) in one side of second fixed plate (5), fluid-discharge tube (16) is installed in one side of feed liquor pipe (6) to the terminal surface of cylinder (1), the terminal surface of fluid-discharge tube (16) is provided with third rubber buffer (17), the inside in cylinder (1) is installed to the one end of push rod (2), push rod (2) is provided with piston (18) in the fixed one end of cylinder (1) inside, the other end of push rod (2) is fixed and is provided with push pedal (19), the needle body (3) is connected with the end of the liquid inlet pipe (6) through a connecting piece; one side, away from the first movable rod (9), of the first rubber plug (11) is arranged to be conical, and the diameter of the first rubber plug (11) is larger than that of the liquid inlet pipe (6); one side that second rubber buffer (13) are close to second movable rod (10) sets up to the taper, the diameter of second rubber buffer (13) is greater than the diameter of catheter (7).
2. A lung puncture biopsy device according to claim 1, wherein: the needle cylinder (1) is integrally made of transparent materials.
3. A lung puncture biopsy device according to claim 1, wherein: the number of the second compression springs (14) is four, and the four second compression springs (14) are uniformly arranged on the side face of the connecting plate.
4. A lung puncture biopsy device according to claim 1, wherein: the end surface of one end of the liquid guide pipe (7) is flush with the side surface of the first fixing plate (4), and the end surface of the liquid discharge pipe (16) is flush with the inner side cylinder wall of the syringe (1).
5. A lung puncture biopsy device according to claim 1, wherein: first sealing washer is all installed with the junction of feed liquor pipe (6) in first rubber buffer (11), second rubber buffer (13) and catheter (7) junction.
6. A lung puncture biopsy device according to claim 1, wherein: and the joints of the two fixed sleeves (8) and the outer sides of the first movable rod (9) and the second movable rod (10) are respectively provided with a second sealing ring.
7. A lung puncture biopsy device according to claim 1, wherein: the inner side cylinder wall of the needle cylinder (1) is fixedly provided with a limiting block (20) at one side of the elastic membrane (15) far away from the second fixing plate (5).
8. A lung puncture biopsy device according to claim 1, wherein: the inside of the connecting piece (21) is screwed with the external thread arranged at the outer side of the end of the liquid inlet pipe (6) through the internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349147.XA CN108784754B (en) | 2018-04-18 | 2018-04-18 | Lung puncture biopsy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349147.XA CN108784754B (en) | 2018-04-18 | 2018-04-18 | Lung puncture biopsy device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108784754A CN108784754A (en) | 2018-11-13 |
| CN108784754B true CN108784754B (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810349147.XA Expired - Fee Related CN108784754B (en) | 2018-04-18 | 2018-04-18 | Lung puncture biopsy device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108784754B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109480919B (en) * | 2018-12-29 | 2021-09-17 | 刘石龙 | Clinical sampling device of department of general surgery |
| CN112890877A (en) * | 2019-11-19 | 2021-06-04 | 西安交通大学医学院第一附属医院 | Nephrology department biopsy puncture device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863777B1 (en) * | 1995-09-28 | 2005-01-26 | Liebel-Flarsheim Company | Limited backflow reflux valve |
| CN101554498A (en) * | 2009-05-21 | 2009-10-14 | 陈凯 | Needleless injection system used for continuously injecting animals |
| CN204260753U (en) * | 2014-12-04 | 2015-04-15 | 李登瑞 | Liquid suction pipe syringe needle |
| CN207186671U (en) * | 2017-03-01 | 2018-04-06 | 新乡医学院第一附属医院 | A kind of novel pleural cavity puncturing drainage apparatus |
-
2018
- 2018-04-18 CN CN201810349147.XA patent/CN108784754B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863777B1 (en) * | 1995-09-28 | 2005-01-26 | Liebel-Flarsheim Company | Limited backflow reflux valve |
| CN101554498A (en) * | 2009-05-21 | 2009-10-14 | 陈凯 | Needleless injection system used for continuously injecting animals |
| CN204260753U (en) * | 2014-12-04 | 2015-04-15 | 李登瑞 | Liquid suction pipe syringe needle |
| CN207186671U (en) * | 2017-03-01 | 2018-04-06 | 新乡医学院第一附属医院 | A kind of novel pleural cavity puncturing drainage apparatus |
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| Publication number | Publication date |
|---|---|
| CN108784754A (en) | 2018-11-13 |
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Granted publication date: 20210528 |