CN109620311B - Biopsy forceps with integrated forceps head and manufacturing method thereof - Google Patents
Biopsy forceps with integrated forceps head and manufacturing method thereof Download PDFInfo
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- CN109620311B CN109620311B CN201910059505.8A CN201910059505A CN109620311B CN 109620311 B CN109620311 B CN 109620311B CN 201910059505 A CN201910059505 A CN 201910059505A CN 109620311 B CN109620311 B CN 109620311B
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- 238000001574 biopsy Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000005070 sampling Methods 0.000 claims description 26
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 17
- 238000003466 welding Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 4
- 238000013188 needle biopsy Methods 0.000 description 4
- 230000003872 anastomosis Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biodiversity & Conservation Biology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a biopsy forceps with an integrated forceps head and a manufacturing method thereof. The integrated clamp head comprises a left clamp head, a right clamp head and a clamp handle for connecting the left clamp head and the right clamp head, which are integrally formed, wherein the clamp handle is folded in half, a central hole is formed in the middle of the clamp handle, and the left clamp head and the right clamp head which are arranged at two ends of the clamp handle have elasticity and are shaped into an initial state of opening towards opposite directions. The integrated forceps head, the pull rod pin and the pull rod pipe are assembled into the forceps head kit, the pull rod positioning block and the forceps head seat are assembled into the forceps head assembly, and then the forceps head assembly, the inhaul cable, the spring pipe and the control handle are assembled into the whole biopsy forceps, so that the structure and the assembly process of the biopsy forceps are simplified.
Description
Technical Field
The invention relates to a biopsy forceps, in particular to a biopsy forceps with an integrated forceps head, and also relates to a manufacturing method of the biopsy forceps.
Background
Biopsy forceps are a tool for performing biting and sampling on focus parts in the abdominal cavity of a human body, and are generally matched with an endoscope for use. In the endoscopy, when a pathological examination is required to be performed on a lesion, a biopsy forceps is fed into a patient through an endoscope forceps channel, and tissue of the lesion is grasped. The biopsy forceps have small sampling pain and small wound, so the biopsy forceps are popular with doctors and patients.
The biopsy forceps generally comprise a forceps head component, an elongated stay rope, a spring tube sleeved outside the stay rope and a handle, wherein one end of the stay rope is connected with a four-bar mechanism in the forceps head component, the other end of the stay rope is connected with a movable handle on the handle, one end of the spring tube is connected with the forceps head component, 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 binding clip on the binding clip assembly to realize opening and closing, so that suspicious tissues are 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 the two independent forceps heads are pushed and pulled through a four-bar mechanism, so that the opening and closing control of the forceps heads is realized. The clamp head assembly has a complex structure, a complex process during assembly and high assembly difficulty.
Disclosure of Invention
The invention aims to provide a biopsy forceps with an integrated forceps head.
Another technical problem to be solved by the present invention is to provide a method for manufacturing the biopsy forceps.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
According to a first aspect of the embodiment of the invention, a biopsy forceps with an integrated forceps head is provided, wherein the integrated forceps head comprises a left forceps head, a right forceps head and a forceps handle used for connecting the left forceps head and the right forceps head, the forceps handle is arranged in a folded mode, a central hole is formed in the middle of the forceps handle, and the left forceps head and the right forceps head arranged at two ends of the forceps handle have elasticity and are shaped to be in initial states of opening in opposite directions.
The biopsy forceps comprise a forceps head, a central hole, a biopsy tube, a pull rod pin, a pull rod tube and a biopsy tube, wherein the biopsy forceps is preferred to further comprise the pull rod pin and the pull rod tube, the front end of the pull rod pin is clamped in front of the pull rod pin, 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 tube to form the forceps head kit.
Wherein preferably the tie pin is a T-shaped flat head tie pin.
Or 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 is inserted into and fixed with the pull rod pipe, and the sampling needle part extends forwards in the sample storage groove between the left clamp head and the right clamp head. A protrusion protruding outward is formed at the tip of the sampling needle portion.
The biopsy forceps further comprise a forceps head seat and a pull rod positioning block, wherein 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 the 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 pipe;
The pull rod pipe in the clamp head sleeve member passes through the connecting hole and extends backwards, the left clamp head and the right clamp head are limited in the blind hole at the front end of the clamp head seat, and the pull rod positioning block is limited in the blind hole at the rear end of the clamp head seat and is used for limiting the maximum distance for the clamp head sleeve member to push forwards.
According to a second aspect of the embodiment of the present invention, there is provided a method for manufacturing the biopsy forceps described above, comprising the steps of manufacturing an integrated forceps head as follows:
(1) Punching and cutting out the outline of the integrated clamp head, and punching out two pressure reducing holes at the clamp head position and a central hole at the central position;
(2) Two spoon cups are obtained at two ends of the integral clamp head through stamping and stretching;
(3) Folding out the integral shape of the integral clamp head through stamping;
(4) The hardness and mechanical strength of the integral clamp head are obtained through heat treatment processing.
The method preferably further comprises the step of assembling the binding clip kit by inserting and fixing the pull rod pin through the central hole of the integrated binding clip and then connecting the pull rod pin with the pull rod tube.
Wherein preferably, when the needle-free biopsy forceps are assembled, the pull rod pin is a T-shaped flat head pull rod pin, and when the needle biopsy forceps are assembled, the pull rod pin is a needle point pull rod pin with a sampling needle part at the front end.
The method comprises the steps of assembling the clamp head assembly, namely, installing the clamp head assembly into a clamp head seat, limiting the integrated clamp head in a blind hole area at the front end of the clamp head seat, inserting the pull rod pipe into the blind hole area at the rear end of the clamp head seat after penetrating through a connecting hole, and arranging a pull rod positioning block on the outer wall of the rear end of the pull rod pipe, wherein the pull rod positioning block is used for limiting the maximum distance for the clamp head assembly to push forwards.
The invention provides a biopsy forceps with an integrated forceps head, wherein the integrated forceps head comprises a left forceps head, a right forceps head and a forceps handle for connecting the left forceps head and the right forceps head. The integrated forceps head, the pull rod pin and the pull rod pipe are assembled to form the forceps head sleeve, the pull rod positioning block and the forceps head seat are assembled to form the forceps head assembly, and then the forceps head assembly, the inhaul cable, the spring pipe and the control handle are assembled to form the whole biopsy forceps, so that the structure and the assembly process of the biopsy forceps are simplified.
Drawings
FIG. 1 is a schematic view of a first biopsy forceps head assembly according to the present invention;
FIG. 2 is a schematic view of a second biopsy forceps head assembly according to the invention;
fig. 3A and 3B are a schematic front view and a schematic top view, respectively, of the outline of a stamped integrated biopsy forceps;
fig. 4A and 4B are front and top views, respectively, of a scoop cup punched with an integral binding clip;
fig. 5A and 5B are front and side views, respectively, of a finished integrated clip;
FIGS. 6A and 6B are front and side views, respectively, of a flat head tie rod pin;
FIG. 7 is a schematic view of the structure of a needle tip pull rod pin;
FIGS. 8A and 8B are front and side views, respectively, of a draw tube;
FIG. 9 is a schematic view of the assembled binding clip kit;
Fig. 10 is a schematic view of the structure of the jaw base;
Fig. 11 is a schematic structural view of the tie bar positioning block.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and specific embodiments.
In order to simplify the structure and manufacturing process of the biopsy forceps, the invention provides the biopsy forceps with the integrated forceps head. The needleless biopsy forceps and the needleless biopsy forceps are described below as examples.
First embodiment
As shown in fig. 1, the needleless biopsy forceps with the integrated forceps head comprise an integrated forceps head 1, a flat head pull rod pin 2, a pull rod pipe 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 pipe 3 form a forceps head sleeve, and the forceps head sleeve, the forceps head seat 10 and the pull rod positioning block 4 form a forceps head assembly after being assembled.
Specifically, the integral binding clip 1 has a structure as shown in fig. 5A and 5B, and includes an integrally formed left binding clip 1a, right binding clip 1B, and a grip 1c for connecting the left binding clip 1a and the right binding clip 1B. The integrated pliers head is integrally formed by stainless steel materials through a stamping process. The grip 1c is folded in half, and a center hole 1d is provided in the middle of the grip 1c (see fig. 3B and 4B). The left and right binding clip 1a, 1b provided at both ends of the grip handle 1c have elasticity and are shaped to be in an initial state of being naturally opened to opposite sides, and pressure reducing holes 1e are formed in the left and right binding clip 1a, 1b, respectively.
The flat head drawbar pin 2 shown in fig. 6A and 6B is a T-shaped drawbar pin with a large front and a small rear, the diameter of the head of the flat head drawbar pin 2 is larger than the diameter of the central hole 1d, and the diameter of the cylinder at the rear of the flat head drawbar pin 2 is equal to or smaller than the diameter of the central hole 1d and is approximately equal to the inner diameter of the drawbar tube 3. The front end of the flat head pull rod pin 2 is clamped in front of the central hole 1d, and a cylinder at the rear part of the flat head pull rod pin 2 is inserted into the central hole 1d of the integrated clamp head 1 and is inserted into and fixed with the pull rod pipe 3 shown in fig. 8A and 8B to form a clamp head sleeve. The construction of the binding clip kit is shown in fig. 9.
The draw bar pipe 3 shown in fig. 8A and 8B is a round pipe. The pull rod positioning block 4 shown in fig. 11 is another round pipe, and the inner diameter of the pull rod positioning block 4 is equal to the outer diameter of the pull rod pipe 3.
The clamp head holder 10 shown in fig. 10 is a sleeve with blind holes at both ends and a plug in the middle, and a connecting hole 13 penetrating through the two blind hole areas 11, 12 is provided in the plug.
As shown in fig. 1, the binding clip kit is assembled inside the binding clip base 10 to form a binding clip assembly. The pull rod tube 3 in the clamp head kit extends backwards through the connecting hole 13, the left clamp head 1a and the right clamp head 1b are limited in the blind hole 11 at the front end of the clamp head base 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 the blind hole 12 at the rear end of the clamp head base 10 and is used for limiting the maximum distance of forward pushing of the clamp head kit.
And (3) carrying out the procedures of cable butt joint, spring tube welding, handle assembly and the like which are the same as the existing biopsy forceps assembly procedure on the forceps head assembly to obtain a complete biopsy forceps.
After the biopsy forceps are assembled by using the forceps head assembly shown in fig. 1, when the pull rod pipe 3 is pulled downwards under the action of a pull rope, the integrated forceps head 1 moves downwards towards the inside of the forceps head seat 10, the forceps heads are forced to be closed by extrusion due to the contact between the side walls of the left forceps head 1a and the right forceps head 1b and the forceps head seat 10, so that the closing function of the forceps heads is realized, and when the pull rod pipe 3 is pushed to move upwards, the integrated forceps head 1 extends out of the forceps head seat, and the left forceps head 1a and the right forceps head 1b are opened by virtue of the elastic characteristics of the forceps heads.
In this embodiment, the binding clip assembly is obtained by assembling the integrated binding clip, flat head drawbar pin and drawbar tube together, and assembling the binding clip assembly, drawbar positioning block and binding clip seat together. Compared with a clamp head assembly with a four-bar structure, the clamp head assembly is simple in structure, low in cost and convenient to assemble. The biopsy forceps not only omits parts of four connecting rods, but also simplifies assembly processes such as rivet welding and the like, and greatly improves production and processing efficiency.
In addition, as the forceps head used in the biopsy forceps is an integrated forceps head obtained by adopting a stamping forming process, the assembly precision is high, the anastomosis of the forceps head assembly can be effectively improved, and the bleeding problem caused by sampling is reduced.
Second embodiment
As shown in fig. 2, the biopsy forceps with the integrated forceps head comprise an integrated forceps head 1, a needle point pull rod pin 5, a pull rod pipe 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 pipe 3 form a forceps head sleeve, and the forceps head sleeve, the forceps head seat 10 and the pull rod positioning block 4 form a forceps head assembly after being assembled.
In the forceps head kit, except that the needle tip pull rod pin 5 is different from the flat head pull rod pin 2 used in the first embodiment, the rest of the structure is the same as that of the needleless biopsy forceps provided in the first embodiment. In the needle biopsy forceps provided in this embodiment, the needle tip pull rod pin 5 shown in fig. 7 is a pull rod pin having a sampling needle portion 5a at the front end, and a protrusion 5c protruding outward is provided at the forefront end of the sampling needle portion 5 a. The sampling needle part 5a extends forwards in the sample storage groove between the left clamp head 1a and the right clamp head 1b, and the rear end 5b of the needle point pull rod pin 5 penetrates through the central hole 1d of the integrated clamp head 1 and is inserted into and fixed with the pull rod pipe 3 to form a clamp head kit.
In this embodiment, the process of assembling the binding clip kit and the binding clip base 10, the tie bar positioning block 4 into a binding clip assembly, and the process of assembling the binding clip assembly with other components into a biopsy forceps are the same as in the first embodiment and will not be repeated here.
In the needle biopsy forceps, an elongated sample storage groove is provided in the forceps head base 10. The integral clamp head 1 is pulled backwards or pushed forwards, so that the integral clamp head 1 can be opened and closed continuously for a plurality of times to finish continuous sampling for a plurality of times, and sample tissues obtained by the plurality of times of sampling are sequentially stored on the sampling needle part 5a between the left clamp head 1a and the right clamp head 1 b. The protrusion 5c provided at the forefront end of the sampling needle portion 5a can prevent the sample tissue stored on the sampling needle portion 5a from falling off during the process of opening and closing the disposable clip 1a plurality of times.
The biopsy forceps with the needle provided by the embodiment also have the advantages of simple structure, low cost and convenience in assembly. The structure not only omits parts of the four connecting rods, but also simplifies assembly processes such as rivet welding and the like, and greatly improves production and processing efficiency.
In addition, as the forceps head used in the biopsy forceps is an integrated forceps head processed by adopting a stamping forming process, the assembly precision is high, the anastomosis of the forceps head assembly can be effectively improved, and the bleeding problem caused by sampling is reduced.
Third embodiment
The construction of the two bioptomes is described in detail above and the corresponding manufacturing method is described below.
The invention also provides a manufacturing method of the biopsy forceps with the integrated forceps head, which comprises the following steps of manufacturing the integrated forceps head, assembling the integrated forceps head, the pull rod pin and the pull rod pipe into a forceps head sleeve, assembling the forceps head sleeve, the forceps head seat and the pull rod positioning block into a forceps head assembly, and assembling the forceps head assembly, the inhaul cable, the spring pipe and the control handle into the biopsy forceps. The whole forceps head component can be made of stainless steel materials meeting medical standards, for example, materials meeting standards of biopsy forceps such as 2Cr13,3Cr13 and the like are adopted.
Specifically, first, the integrated clamp head 1 is manufactured by a press forming process.
The manufacturing steps of the integral clamp head 1 are as follows:
(1) As shown in fig. 3A and 3B, the outline of the integrated clamp head 1 is punched and cut, and two pressure relief holes 1e at the clamp head position and a center hole 1d provided at the center position are punched;
(2) As shown in fig. 4A and 4B, two spoon cups (i.e., a left binding clip 1a and a right binding clip 1B) are obtained at both ends of the integrated binding clip 1 by punching and stretching;
(3) As shown in fig. 5A and 5B, the overall shape of the integral binding clip 1 is folded out by press working;
(4) The hardness and mechanical strength of the integral binding clip 1 are obtained by heat treatment processing.
Because the forceps head used in the biopsy forceps provided by the invention is an integrated forceps head processed by adopting a stamping forming process, the assembly precision is high, the anastomosis of the forceps head assembly can be effectively improved, and the bleeding problem caused by sampling is reduced.
Secondly, the integrated clamp 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 tube are assembled together to form a clamp head kit.
The assembling process of the binding clip kit comprises the following steps of penetrating a pull rod pin (a flat head pull rod pin 2 or a needle tip pull rod pin 5) from a central hole 1d of the integrated binding clip 1, and then inserting and fixing the pull rod pin with a pull rod pipe 3, thereby completing the assembling process of the binding clip kit. The pull rod pin and the pull rod pipe 3 can be welded into a whole by a laser welding mode.
When the needle-free biopsy forceps are assembled, the used drawbar pin is a flat-headed drawbar pin 2 in a T shape as shown in fig. 6A and 6B, and when the needle biopsy forceps are assembled, the used drawbar pin is a needle-point drawbar pin 5 having a sampling needle portion 5a at the front end as shown in fig. 7. Both the flat head pull rod pin 2 and the needle tip 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 length of stainless steel pipe may be cut out by wire cutting as the draw bar pipe 3. The draw bar positioning block 4 shown in fig. 11 is another round pipe, and the inner diameter of the draw bar positioning block 4 is almost equal to the outer diameter of the draw bar pipe 3.
The clamp head holder 10 shown in fig. 10 is a sleeve with blind holes at both ends and a plug in the middle, and a connecting hole 13 penetrating through the two blind hole areas 11, 12 is provided in the plug.
The method for assembling the clamp head assembly comprises the steps of installing the clamp head kit into the clamp head seat 10 shown in fig. 10, limiting the integrated clamp head 1 in a blind hole area 11 at the front end of the clamp head seat 10, inserting the pull rod pipe 3 into a blind hole area 12 at the rear end of the clamp head seat 10 after passing through a connecting hole 13, arranging the 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 through laser welding to obtain the clamp head assembly. The function of the tie rod positioning block 4 is to limit the maximum distance that the clamp head assembly can be pushed forward. The position of the pull rod positioning block 4 needs to ensure that the integrated clamp head 1 cannot be pushed out of the clamp head seat 10 when the pull rod positioning block 4 is pushed to the blocking position of the clamp head seat 10.
Finally, the forceps head assembly is subjected to the procedures of cable butt joint, spring tube welding, handle assembly and the like which are the same as the existing biopsy forceps assembly procedure, and a complete biopsy forceps is obtained.
After the biopsy forceps are assembled by using the forceps head component, when the pull rod pipe is pulled downwards under the action of a pull rope, the integrated forceps head 1 moves downwards towards the inside of the forceps head seat 10, the two forceps heads of the integrated forceps head 1 are forced to be closed by extrusion due to the contact between the side walls of the left forceps head 1a and the right forceps head 1b and the forceps head seat 10, so that the closing function of the forceps heads is realized, and when the pull rod pipe is pushed to move upwards, the left forceps head 1a and the right forceps head 1b respectively extend out of the forceps head seat 10, and the opening function of the forceps heads is realized by the aid of the elastic characteristics of the integrated forceps head 1.
The invention provides a novel biopsy forceps, which comprises an integrated forceps head 1, a needle point pull rod pin 5 or a flat head pull rod pin 2, a pull rod pipe 3, a pull rod positioning block 4 and a forceps head seat 10. Its advantages are simple assembly and low cost. Compared with various clamp head components used at present, the clamp head component omits parts of a connecting rod, simplifies assembly processes such as rivet welding and the like, and greatly improves production and processing efficiency.
In summary, the biopsy forceps with the integrated forceps head provided by the invention have the advantages that the forceps head kit is assembled by the integrated forceps head, the pull rod pin and the pull rod pipe, the forceps head kit, the pull rod positioning block and the forceps head seat, the forceps head assembly is assembled, and then the forceps head assembly, the stay rope, the spring pipe and the control handle are assembled into the whole biopsy forceps, so that the structure and the assembly process of the biopsy forceps are simplified.
The biopsy forceps with the integral forceps head and the method for manufacturing the same provided by the invention are described in detail above. Any obvious modifications to the present invention, as would be apparent to those skilled in the art, would constitute an infringement of the patent rights of the invention and would take on corresponding legal liabilities without departing from the true spirit of the invention.
Claims (4)
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 for connecting the left forceps head and the right forceps head, which are integrally formed, the forceps handle is folded in half, and a central hole is formed in the middle of the forceps handle;
The biopsy forceps further comprises a needle point pull rod pin and a pull rod tube, wherein the front end of the needle point pull rod pin is provided with a sampling needle part, the outer diameter of the front end of the needle point pull rod pin is larger than the aperture of the central hole, and the outer diameter of the rear end of the needle point pull rod pin is smaller than the aperture of the central hole;
the rear end of the needle point pull rod pin penetrates through the central hole and then is spliced and fixed with the pull rod pipe to form a clamp head kit, the sampling needle part extends forwards in a sample storage groove between the left clamp head and the right clamp head, and a bulge protruding outwards is formed at the front end of the sampling needle part;
The integrated clamp head is pulled or pushed, so that the integrated clamp head is continuously opened and closed for a plurality of times, and the sampling needle part is driven to synchronously stretch and retract, so that sample tissues obtained by a plurality of times of sampling are sequentially stored on the sampling needle part.
2. The biopsy forceps of claim 1, further comprising a forceps head seat and a pull rod positioning block, wherein 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 the two blind hole areas is arranged in the plug;
the pull rod pipe in the clamp head sleeve member passes through the connecting hole to extend backwards, the left clamp head and the right clamp head are limited in the blind hole at the front end of the clamp head seat, the pull rod positioning block is a round pipe fixed on the outer wall of the pull rod pipe, and the pull rod positioning block is limited in the blind hole at the rear end of the clamp head seat and is used for limiting the maximum position of forward pushing of the clamp head sleeve member.
3. A method of manufacturing a biopsy forceps having an integral forceps head, comprising the steps of:
(1) Punching and cutting out the outline of the integrated clamp head, and punching out two pressure reducing holes of the clamp head and a central hole positioned at the central position;
(2) Two spoon cups are obtained at two ends of the integral clamp head through stamping and stretching;
(3) Folding out the integral shape of the integral clamp head through stamping;
(4) The hardness and the mechanical strength of the integral clamp head are obtained through heat treatment processing;
The method further comprises the following steps of assembling the binding clip kit:
The needle point pull rod pin with the front end provided with the sampling needle part passes through the central hole and is inserted and fixed with the pull rod pipe to form a clamp head sleeve, wherein the outer diameter of the front end of the needle point pull rod pin is larger than the aperture of the central hole, the outer diameter of the rear end of the needle point pull rod pin is smaller than the aperture of the central hole, the inner diameter of the pull rod pipe is matched with the outer diameter of the rear end of the needle point pull rod pin, the outer diameter of the pull rod pipe is larger than the aperture of the central hole, and the front end of the sampling needle part is provided with a bulge protruding outwards.
4. The method of manufacturing as claimed in claim 3, further comprising the steps of assembling the bit assembly by fitting the bit assembly into the bit holder, the integral bit being restrained in a blind hole area at a front end of the bit holder, inserting the tie tube through the connecting hole into the blind hole area at a rear end of the bit holder, and providing a tie bar positioning block on an outer wall of the rear end of the tie tube for limiting a maximum distance of forward pushing of the bit assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910059505.8A CN109620311B (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head and manufacturing method thereof |
| 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 |
|---|---|---|---|
| CN201910059505.8A CN109620311B (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109620311A CN109620311A (en) | 2019-04-16 |
| CN109620311B true CN109620311B (en) | 2024-12-20 |
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| CN201910059505.8A Active CN109620311B (en) | 2019-01-22 | 2019-01-22 | Biopsy forceps with integrated forceps head and manufacturing method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020151267A1 (en) * | 2019-01-22 | 2020-07-30 | 于岭 | Biopsy forceps with integrated forceps head and manufacturing method therefor |
| CN111938717B (en) * | 2020-09-15 | 2025-02-21 | 北京龙淼医疗器械有限公司 | A biopsy forceps head assembly and biopsy forceps |
| CN114732446B (en) * | 2021-11-25 | 2025-06-27 | 兰州市第二人民医院 | A lateral sampling biopsy device for endoscope |
| CN118060223B (en) * | 2024-02-22 | 2024-08-23 | 江苏瑞宇医疗用品有限公司 | Automatic processing equipment for surgical forceps |
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