CN209751116U - Biopsy forceps with integrated forceps head - Google Patents
Biopsy forceps with integrated forceps head Download PDFInfo
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- CN209751116U CN209751116U CN201920104945.6U CN201920104945U CN209751116U CN 209751116 U CN209751116 U CN 209751116U CN 201920104945 U CN201920104945 U CN 201920104945U CN 209751116 U CN209751116 U CN 209751116U
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Abstract
The utility model discloses a biopsy forceps with integral type binding clip. The integrated tong head comprises a left tong head, a right tong head and a tong handle, wherein the left tong head and the right tong head are integrally formed, the tong handle is used for connecting the left tong head and the right tong head, the tong handle is folded in half, and a central hole is formed in the middle of the tong handle; the left forceps head and the right forceps head which are arranged at two ends of the forceps handle have elasticity and are shaped into an initial state which is opened towards the opposite direction. The integrated tong head, the pull rod pin and the pull rod pipe are assembled into a tong head sleeve piece; assembling the binding clip assembly with the binding clip suite, the pull rod positioning block and the binding clip seat; then the forceps head assembly, the pull cable, the spring tube and the control handle are assembled into the whole biopsy forceps; the structure and the assembly process of the biopsy forceps are simplified.
Description
Technical Field
the utility model relates to a biopsy forceps especially relates to a biopsy forceps with integral type binding clip.
Background
Biopsy forceps are a tool used for bite-cutting and sampling of a focus part in a human abdominal cavity, and are generally used together with an endoscope. In the endoscopy, when pathological examination is needed to be carried out on a diseased region, the biopsy forceps are sent into the body of a patient through an endoscope channel to clamp tissues of the diseased region. The biopsy forceps have the advantages of less pain and less trauma, so the biopsy forceps are popular with doctors and patients.
Biopsy forceps generally comprise a forceps head assembly, a slender pull cable, a spring tube which is also slender and sleeved outside the pull cable, and a handle, wherein one end of the pull cable is connected with a four-bar mechanism in the forceps head assembly, the other end of the pull cable is connected with a movable handle on the handle, one end of the spring tube is connected with the forceps head assembly, and the other end of the spring tube is connected with the handle. The movable handle is pushed and pulled to drive the inhaul cable, the inhaul cable drives the four-bar mechanism to act, and the four-bar mechanism drives the two symmetrically arranged forceps heads on the forceps head assembly to open and close, so that the suspicious tissue is taken out of the body.
In the forceps head assembly of the existing biopsy forceps, two independent forceps heads are respectively connected with a forceps head bracket through rivets and are pushed and pulled through a four-bar mechanism, so that the opening and closing control of the forceps heads is realized. The tong head assembly has a complex structure, a complex process and high assembly difficulty during assembly.
Disclosure of Invention
The utility model aims to solve the technical problem that a biopsy forceps with integral type binding clip is provided.
in order to realize the technical purpose, the utility model adopts the following technical scheme:
A biopsy forceps with an integrated forceps head is disclosed, wherein the integrated forceps head comprises a left forceps head, a right forceps head and a forceps handle, the left forceps head and the right forceps head are integrally formed, the forceps handle is used for connecting the left forceps head and the right forceps head, the forceps handle is folded, and a central hole is formed in the middle of the forceps handle; the left forceps head and the right forceps head which are arranged at two ends of the forceps handle have elasticity and are shaped into an initial state which is opened towards the opposite direction.
preferably, the biopsy forceps further comprise a pull rod pin and a pull rod tube; the front end of the pull rod pin is clamped in front of the central hole, and the rear end of the pull rod pin is inserted into the central hole and then is inserted into and fixed with the pull rod pipe to form a tong head external member.
Preferably, the pull rod pin is a T-shaped flat-head pull rod pin.
Or, preferably, the pull rod pin is a needle point pull rod pin with a sampling needle part at the front end; the rear end of the needle point pull rod pin penetrates through the central hole and then is inserted into and fixed with the pull rod pipe; the sampling needle portion extends forward within the sample storage slot between the left and right jaws. A projection protruding outward is formed at the tip of the sampling needle part.
Preferably, the biopsy forceps further comprise a forceps head seat and a pull rod positioning block; the forceps head seat is a sleeve with blind holes at two ends and a plug arranged in the middle, and a connecting hole penetrating through two blind hole areas is arranged in the plug;
The pull rod positioning block is a circular tube fixed on the outer wall of the pull rod tube;
The pull rod pipe in the tong head suite passes through the connecting hole and extends backwards, and the left tong head and the right tong head are limited in the blind hole at the front end of the tong head seat; the pull rod positioning block is limited in the blind hole at the rear end of the forceps head seat and is used for limiting the maximum distance of forward pushing of the forceps head kit.
The utility model provides a biopsy forceps with integral type binding clip, wherein, integral type binding clip includes left binding clip, right binding clip of integrated into one piece and is used for connecting the pincers handle of left binding clip and right binding clip. The integrated tong head, the pull rod pin and the pull rod pipe are assembled into a tong head external member; assembling the forceps head kit, the pull rod positioning block and the forceps head seat into a forceps head assembly; then the forceps head assembly, the pull cable, the spring tube and the control handle are assembled into the whole biopsy forceps; the structure and the assembly process of the biopsy forceps are simplified.
Drawings
Fig. 1 is a schematic structural diagram of a forceps head assembly of a first biopsy forceps provided by the present invention;
FIG. 2 is a schematic structural view of a second forceps head assembly of a biopsy forceps provided by the present invention;
FIGS. 3A and 3B are schematic front and top views, respectively, of a stamped outline of an integrated bioptome;
FIGS. 4A and 4B are schematic front and top views, respectively, of a spoon cup from which an integral bit is stamped;
FIGS. 5A and 5B are schematic front and side views of the completed integral pliers head;
FIGS. 6A and 6B are schematic front and side views, respectively, of a tack rod pin;
FIG. 7 is a schematic view of the structure of a needle tip pull rod pin;
FIGS. 8A and 8B are schematic front and side views, respectively, of a drawbar tube;
FIG. 9 is a schematic view of the assembled forceps head assembly;
figure 10 is a schematic view of the structure of the jaw base;
Fig. 11 is a schematic structural view of a pull rod positioning block.
Detailed Description
the technical solution of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
in order to simplify the structure and the manufacturing process of the biopsy forceps, the utility model provides the biopsy forceps with integrated forceps heads. The following description will be made by taking needle-free biopsy forceps and needle-containing biopsy forceps as examples.
First embodiment
as shown in fig. 1, the needle-free biopsy forceps with an integrated forceps head comprises an integrated forceps head 1, a flat-head pull rod pin 2, a pull rod tube 3, a pull rod positioning block 4 and a forceps head seat 10, wherein the integrated forceps head 1, the flat-head pull rod pin 2 and the pull rod tube 3 form a forceps head kit, and the forceps head kit, the forceps head seat 10 and the pull rod positioning block 4 are assembled to form a forceps head assembly.
Specifically, the integrated binding clip 1 has a structure as shown in fig. 5A and 5B, and includes a left binding clip 1a, a right binding clip 1B, and a clip handle 1c for connecting the left binding clip 1a and the right binding clip 1B. The integrated tong head is integrally formed by stainless steel materials through a stamping process. The forceps handle 1c is folded in half, and a center hole 1d is provided in the middle of the forceps handle 1c (see fig. 3B and 4B). The left forceps head 1a and the right forceps head 1b which are arranged at two ends of the forceps handle 1c have elasticity and are shaped into an initial state which is naturally opened towards two opposite sides; the left and right bits 1a and 1b are respectively formed with a pressure relief hole 1 e.
The flat-head pull rod pin 2 shown in fig. 6A and 6B is a T-shaped pull rod pin with a big front and a small back, and the diameter of the head of the flat-head pull rod pin 2 is larger than the aperture of the central hole 1 d; the diameter of the cylinder at the rear part of the flat-head pull rod pin 2 is equal to or less than the diameter of the central hole 1d and is approximately equal to the inner diameter of the pull rod tube 3. The front end of the flat-head pull rod pin 2 is clamped in front of the central hole 1d, and the cylinder at the rear part of the flat-head pull rod pin 2 is inserted into the central hole 1d of the integrated tong head 1 and then is inserted and fixed with the pull rod pipe 3 shown in the figures 8A and 8B to form a tong head external member. The structure of the forceps head kit is shown in fig. 9.
The drawbar tube 3 shown in fig. 8A and 8B is a circular tube in cross section. The pull rod positioning block 4 shown in fig. 11 is another round tube; the inner diameter of the pull rod positioning block 4 is equal to the outer diameter of the pull rod pipe 3.
The bit holder 10 shown in fig. 10 is a sleeve having blind holes at both ends and a plug provided in the middle, and a connection hole 13 penetrating through both blind hole regions 11 and 12 is provided in the plug.
As shown in fig. 1, the bit kit is assembled inside the bit holder 10 to assemble a bit assembly. A pull rod pipe 3 in the tong head suite extends backwards through the connecting hole 13, and the left tong head 1a and the right tong head 1b are limited in a blind hole 11 at the front end of the tong head seat 10; the pull rod positioning block 4 is a round tube fixed on the outer wall of the pull rod tube 3, and the pull rod positioning block 4 is limited in a blind hole 12 at the rear end of the tong head seat 10 and used for limiting the maximum distance for forward pushing of the tong head suite.
And carrying out procedures of stay cable butt joint, spring tube welding, handle assembly and the like on the forceps head assembly, which are the same as the assembly procedures of the existing biopsy forceps, so as to obtain the complete biopsy forceps.
after the forceps head assembly shown in fig. 1 is assembled into a biopsy forceps, when the pull rod pipe 3 is pulled downwards under the action of the pull rope, the integrated forceps head 1 moves downwards to move towards the forceps head seat 10, and the forceps heads are pressed to be closed due to the fact that the side walls of the left forceps head 1a and the right forceps head 1b are in contact with the forceps head seat 10, and therefore the closing function of the forceps heads is achieved; when the pull rod pipe 3 is pushed to move upwards, the integrated tong head 1 extends out of the tong head seat, and the left tong head 1a and the right tong head 1b are opened by virtue of the elastic characteristic of the tong heads.
In this embodiment, the bit set is obtained by assembling the integrated bit, the tie rod pin, and the tie rod pipe, and the bit set, the tie rod positioning block, and the bit holder are assembled together to obtain the bit assembly. Compared with the binding clip assembly with the four-bar structure, the binding clip assembly is simple in structure, low in cost and convenient to assemble. The biopsy forceps save four-connecting-rod parts, simplify assembly processes such as rivet welding and the like, and greatly improve production and machining efficiency.
in addition, the forceps head used in the biopsy forceps is an integrated forceps head obtained by adopting a punch forming process, so that the assembly precision is high, the anastomosis of the forceps head components can be effectively improved, and the bleeding problem caused by sampling is reduced.
Second embodiment
as shown in fig. 2, the biopsy forceps with needle and integrated forceps head includes an integrated forceps head 1, a needle point pull rod pin 5, a pull rod tube 3, a pull rod positioning block 4 and a forceps head seat 10, wherein the integrated forceps head 1, the needle point pull rod pin 5 and the pull rod tube 3 form a forceps head kit, and the forceps head kit, the forceps head seat 10 and the pull rod positioning block 4 are assembled to form a forceps head assembly.
In the forceps head kit, the structure is the same as that of the needle-free biopsy forceps provided by the first embodiment except that the needle point pull rod pin 5 is different from the flat head pull rod pin 2 used by the first embodiment. In the biopsy forceps with needle according to this embodiment, the needle point pull rod pin 5 shown in fig. 7 is a pull rod pin having a sampling needle portion 5a at the tip, and a projection 5c protruding outward is provided at the foremost end of the sampling needle portion 5 a. The sampling needle part 5a extends forwards in the sample storage tank between the left tong head 1a and the right tong head 1b, and the rear end 5b of the needle point pull rod pin 5 passes through the central hole 1d of the integrated tong head 1 and then is spliced and fixed with the pull rod pipe 3 to form a tong head kit.
In this embodiment, the process of assembling the forceps head assembly with the forceps head holder 10 and the pull rod positioning block 4, and the process of assembling the forceps head assembly with other parts into the biopsy forceps are the same as those in the first embodiment, and will not be repeated here.
In the biopsy forceps with needle, a long sample storage bath is provided in a forceps head holder 10. By pulling the integrated tong head 1 backwards or pushing the integrated tong head 1 forwards, the integrated tong head 1 can be opened and closed continuously for multiple times, and continuous sampling for multiple times is completed; the sample tissues obtained by the multiple sampling are sequentially stored on the sampling needle portion 5a between the left jaw 1a and the right jaw 1 b. The projection 5c provided at the foremost end of the sampling needle part 5a prevents the sample tissue stored in the sampling needle part 5a from falling off in the process of opening and closing the disposable forceps head 1a plurality of times.
The biopsy forceps with the needle provided by the embodiment also has the advantages of simple structure, low cost and convenience in assembly. The structure simplifies the assembly processes such as rivet welding and the like except for the parts of the four connecting rods, thereby greatly improving the production and processing efficiency.
similarly, the forceps head used in the biopsy forceps is an integrated forceps head obtained by adopting a punch forming process, so that the assembly precision is high, the anastomosis of the forceps head components can be effectively improved, and the bleeding problem caused by sampling is reduced.
third embodiment
The structure of both bioptomes is described in detail above, and the corresponding manufacturing method is described below.
The utility model discloses provide the manufacturing method of biopsy forceps with integral type binding clip simultaneously, including following step: manufacturing an integrated tong head; assembling the integrated tong head, the pull rod pin and the pull rod pipe into a tong head kit; assembling the forceps head kit, the forceps head seat and the pull rod positioning block into a forceps head assembly; and assembling the forceps head assembly, the pull cable, the spring tube and the control handle into the biopsy forceps. The material used for the entire forceps head assembly may be a stainless steel material meeting medical standards, for example, a material meeting the standards of biopsy forceps, such as 2Cr13 and 3Cr13, is adopted.
specifically, first, the integrated caliper head 1 is manufactured by a press-forming process.
the integrated binding clip 1 is manufactured by the following steps:
(1) As shown in fig. 3A and 3B, the overall contour of the integrated binding clip 1 is punched and cut, and two pressure reducing holes 1e at the binding clip position and a central hole 1d at the central position are punched;
(2) As shown in fig. 4A and 4B, two spoon cups (i.e., a left forceps head 1a and a right forceps head 1B) are obtained at two ends of the integrated forceps head 1 by press-stretch forming;
(3) As shown in fig. 5A and 5B, the integral shape of the integrated binding clip 1 is folded by press working;
(4) The hardness and the mechanical strength of the integrated binding clip 1 are obtained through heat treatment processing.
Because the utility model provides an among the biopsy forceps binding clip that uses is the integral type binding clip that adopts stamping forming technology to process the acquisition, and the assembly precision is high, can improve the identical of binding clip subassembly effectively, reduces the hemorrhage problem that the sample arouses.
and secondly, assembling the integrated tong head 1, a pull rod pin (a flat-head pull rod pin 2 or a needle point pull rod pin 5) and a pull rod pipe together to form a tong head kit.
the steps for assembling the forceps head suite are as follows: and (3) penetrating a pull rod pin (a flat-head pull rod pin 2 or a needle point pull rod pin 5) from a central hole 1d of the integrated tong head 1, and then inserting and fixing the pull rod pin and the pull rod pipe 3, thereby completing the assembly of the tong head suite. The pull rod pin and the pull rod pipe 3 can be welded into a whole in a laser welding mode.
When assembling the needle-free biopsy forceps, the pull rod pin used is a flat head pull rod pin 2 in a T shape as shown in FIGS. 6A and 6B; when the needle biopsy forceps are assembled, the pull rod pin used is a needle tip pull rod pin 5 having a sampling needle portion 5a at the tip as shown in fig. 7. Both the flat-head pull rod pin 2 and the needle-point pull rod pin 5 can be obtained by machining.
Thirdly, the binding clip assembly is formed by assembling the binding clip suite, the binding clip seat 10 and the pull rod positioning block together.
As shown in fig. 8A and 8B, a stainless steel pipe may be cut out by wire cutting as the drawbar tube 3. The pull rod positioning block 4 shown in fig. 11 is another round tube; the inner diameter of the pull rod positioning block 4 is almost equal to the outer diameter of the pull rod pipe 3.
The bit holder 10 shown in fig. 10 is a sleeve having blind holes at both ends and a plug provided in the middle, and a connection hole 13 penetrating through both blind hole regions 11 and 12 is provided in the plug.
the steps for assembling the binding clip assembly are as follows: fitting the jaw kit into the jaw housing 10 shown in figure 10; the integrated tong head 1 is limited in a blind hole area 11 at the front end of the tong head seat 10; the pull rod pipe 3 is inserted into a blind hole area 12 at the rear end of the pliers head seat 10 after passing through the connecting hole 13; and then arranging a pull rod positioning block 4 on the outer wall of the pull rod pipe 3, determining the position of the pull rod positioning block 4, and welding the pull rod positioning block 4 and the pull rod pipe 3 into a whole by laser welding to obtain the tong head assembly. The function of the pull rod positioning block 4 is to limit the maximum distance for the tong head suite to be pushed forwards. The position of the pull rod positioning block 4 needs to ensure that the integrated tong head 1 cannot be pushed out of the tong head seat 10 when the pull rod positioning block 4 is pushed to the plugging part of the tong head seat 10.
And finally, carrying out procedures of stay cable butt joint, spring tube welding, handle assembly and the like on the forceps head assembly which are the same as the assembly procedures of the existing biopsy forceps to obtain the complete biopsy forceps.
After the forceps head assembly is used for assembling the biopsy forceps, when the pull rod pipe is pulled downwards under the action of the pull rope, the integrated forceps head 1 moves downwards to move towards the forceps head seat 10, and the two forceps heads of the integrated forceps head 1 are pressed to be closed due to the fact that the side walls of the left forceps head 1a and the right forceps head 1b are in contact with the forceps head seat 10, and therefore the closing function of the forceps heads is achieved; when the pull rod pipe is pushed to move upwards, the left tong head 1a and the right tong head 1b respectively extend out of the tong head seat 10, and the function of opening the tong heads is realized by means of the elastic characteristics of the integrated tong heads 1.
the utility model provides a novel biopsy forceps, the binding clip subassembly comprises integral type binding clip 1, needle point pull rod pin 5 or crew cut pull rod pin 2, pull rod pipe 3, pull rod locating piece 4 and binding clip seat 10. Its advantages are simple assembling and low cost. Compared with various clamp head assemblies used at present, the clamp head assembly saves parts of a connecting rod, simplifies the assembly processes of rivet welding and the like, and greatly improves the production and processing efficiency.
In summary, the biopsy forceps with the integrated forceps head provided by the utility model is provided with the forceps head sleeve part by assembling the integrated forceps head, the pull rod pin and the pull rod tube; assembling the binding clip assembly with the binding clip suite, the pull rod positioning block and the binding clip seat; then the forceps head assembly, the pull cable, the spring tube and the control handle are assembled into the whole biopsy forceps; the structure and the assembly process of the biopsy forceps are simplified.
The biopsy forceps with the integrated forceps head provided by the present invention are explained in detail above. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, without departing from the spirit of the present invention, and it is intended to constitute a violation of the patent rights of the present invention and to bear the relevant legal responsibility.
Claims (6)
1. The biopsy forceps with the integrated forceps heads are characterized by comprising the integrated forceps heads, wherein the integrated forceps heads comprise a left forceps head, a right forceps head and a forceps handle, the left forceps head and the right forceps head are integrally formed, the forceps handle is used for connecting the left forceps head and the right forceps head, the forceps handle is folded, and a central hole is formed in the middle of the forceps handle; the left forceps head and the right forceps head which are arranged at two ends of the forceps handle have elasticity and are shaped into an initial state which is opened towards the opposite direction.
2. The bioptome of claim 1, further comprising a pull rod pin and a pull rod tube;
The front end of the pull rod pin is clamped in front of the central hole, and the pull rod pin is inserted into the central hole of the integrated tong head and then is spliced and fixed with the pull rod pipe to form a tong head external member.
3. The bioptome of claim 2, wherein:
The pull rod pin is a T-shaped flat head pull rod pin.
4. The bioptome of claim 2, wherein:
The pull rod pin is a needle point pull rod pin with a sampling needle part at the front end; the rear end of the needle point pull rod pin penetrates through the central hole and then is inserted into and fixed with the pull rod pipe; the sampling needle portion extends forward within the sample storage slot between the left and right jaws.
5. The bioptome of claim 4, wherein:
A projection protruding outward is formed at the tip of the sampling needle part.
6. The biopsy forceps of claim 2, further comprising a forceps head base and a pull rod positioning block; the clamp head seat is a sleeve with blind holes at two ends and a plug arranged in the middle, and a connecting hole penetrating through two blind hole areas is arranged in the plug;
The pull rod pipe in the tong head suite passes through the connecting hole and extends backwards, and the left tong head and the right tong head are limited in the blind hole at the front end of the tong head seat;
The pull rod positioning block is a round pipe fixed on the outer wall of the pull rod pipe, and is limited in a blind hole in the rear end of the tong head seat and used for limiting the maximum forward pushing position of the tong head suite.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104945.6U CN209751116U (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head |
| PCT/CN2019/111262 WO2020151267A1 (en) | 2019-01-22 | 2019-10-15 | Biopsy forceps with integrated forceps head and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920104945.6U CN209751116U (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head |
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| Publication Number | Publication Date |
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| CN209751116U true CN209751116U (en) | 2019-12-10 |
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| CN201920104945.6U Active CN209751116U (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head |
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| CN (1) | CN209751116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620311A (en) * | 2019-01-22 | 2019-04-16 | 于岭 | Biopsy forceps and its manufacturing method with integral type binding clip |
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2019
- 2019-01-22 CN CN201920104945.6U patent/CN209751116U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109620311A (en) * | 2019-01-22 | 2019-04-16 | 于岭 | Biopsy forceps and its manufacturing method with integral type binding clip |
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Effective date of registration: 20210207 Address after: 101200 3rd floor, area a, building 11, courtyard 39, Pinghe street, Pinggu District, Zhongguancun Science and Technology Park, Pinggu District, Beijing Patentee after: Beijing Donglin Fuji Medical Equipment Co.,Ltd. Address before: 100050 a6-501, Fuli xinranting, 38 Nanwei Road, Xicheng District, Beijing Patentee before: Yu Ling Patentee before: Yu Chun |