WO2020151267A1 - Biopsy forceps with integrated forceps head and manufacturing method therefor - Google Patents

Biopsy forceps with integrated forceps head and manufacturing method therefor Download PDF

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Publication number
WO2020151267A1
WO2020151267A1 PCT/CN2019/111262 CN2019111262W WO2020151267A1 WO 2020151267 A1 WO2020151267 A1 WO 2020151267A1 CN 2019111262 W CN2019111262 W CN 2019111262W WO 2020151267 A1 WO2020151267 A1 WO 2020151267A1
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Prior art keywords
head
forceps
tie rod
clamp head
integrated
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PCT/CN2019/111262
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French (fr)
Chinese (zh)
Inventor
于岭
于淳
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于岭
于淳
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Priority claimed from CN201920104945.6U external-priority patent/CN209751116U/en
Priority claimed from CN201910059505.8A external-priority patent/CN109620311A/en
Application filed by 于岭, 于淳 filed Critical 于岭
Publication of WO2020151267A1 publication Critical patent/WO2020151267A1/en

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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
    • A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws

Definitions

  • the invention relates to a biopsy forceps, in particular to a biopsy forceps with an integrated forceps head, and also to a manufacturing method of the biopsy forceps.
  • the biopsy forceps is a tool for bite-cutting and sampling the lesions in the human abdominal cavity, and is generally used in conjunction with an endoscope.
  • endoscopy when pathological examination of the lesion is needed, the biopsy forceps are sent into the patient through the endoscopic forceps to clamp the tissue of the lesion. Sampling with biopsy forceps is less painful and less traumatic, so it is very popular with doctors and patients.
  • Biopsy forceps are generally composed of a pliers head assembly, a slender cable, the same slender spring tube sheathed outside the cable, and a handle.
  • One end of the cable is connected to the four-bar linkage in the pliers head assembly, and the other end is connected to the handle.
  • the movable handle is connected with the spring tube, one end of the spring tube is connected with the clamp head assembly, and the other end is connected with the handle.
  • Pushing and pulling the movable handle drives the pull cable, the pull cable drives the four-bar linkage mechanism, and the four-bar linkage mechanism drives the two symmetrically arranged clamp heads on the clamp head assembly to open and close, thereby taking out the suspicious tissue from the body.
  • clamp head assembly In the clamp head assembly of the existing biopsy forceps, two independent clamp heads are respectively connected with the clamp head support through a rivet, and the two independent clamp heads are pushed and pulled through a four-link mechanism to realize the opening and closing control of the clamp heads.
  • the clamp head assembly has a complex structure, a complicated process during assembly, and a difficult assembly.
  • the primary technical problem to be solved by the present invention is 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 above-mentioned biopsy forceps.
  • a biopsy forceps with an integrated forceps head wherein the integrated forceps head includes an integrally formed left forceps head, a right forceps head, and a pair for connecting the left forceps Head and the pliers handle of the right pliers head, the pliers handle is arranged in half, and a central hole is provided in the middle of the pliers handle; the left pliers head and the right pliers head provided at both ends of the pliers handle have It is elastic and is shaped into the initial state of opening in the opposite direction.
  • the biopsy forceps further includes a tie rod pin and a tie rod tube; the front end of the tie rod pin is stuck in front of the center hole, and the rear end of the tie rod pin is inserted into the center hole and then inserted into the tie rod tube and Fixed to form a clamp head kit.
  • the tie rod pin is a T-shaped flat head tie rod pin.
  • 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 passes through the central hole and then is inserted and fixed with the pull rod tube; the sampling needle part It extends forward in the sample storage slot between the left clamp head and the right clamp head. A protrusion protruding outward is formed at the tip of the sampling needle.
  • the biopsy forceps further includes a forceps head base and a tie rod positioning block; wherein, the forceps head base is a sleeve with blind holes at both ends and a plug in the middle, and two penetrating tools are provided in the plug. Connecting holes in the blind hole area;
  • the tie rod positioning block is a round tube fixed on the outer wall of the tie rod tube;
  • the tie rod tube in the pliers head kit extends backward through the connecting hole, the left pliers head and the right pliers head are constrained in the blind hole at the front end of the pliers head base; the tie rod positioning block is limited to the pliers head
  • the blind hole at the rear end of the seat is used to limit the maximum distance that the clamp head assembly can be pushed forward.
  • a method for manufacturing the above-mentioned biopsy forceps including the following steps of manufacturing an integrated forceps head:
  • it further includes the following steps of assembling the pliers head kit: after the tie rod pin passes through the central hole of the integrated pliers head, it is inserted and fixed with the tie rod tube to form the pliers head kit.
  • the tie rod pin used when assembling the needle-free biopsy forceps, is a T-shaped flat-head tie rod pin; when assembling the needle biopsy forceps, the tie rod pin used is a needle tip tie rod pin with a sampling needle at the front end.
  • it further includes the following step of assembling the pliers head assembly: installing the pliers head assembly into the pliers head base, and the integrated pliers head is restricted in the blind hole area at the front end of the pliers head base;
  • the tie rod tube passes through the connecting hole and is inserted into the blind hole area at the rear end of the pliers head seat, and a tie rod positioning block is arranged on the outer wall of the rear end of the tie rod tube to limit the maximum distance that the pliers head assembly can be pushed forward.
  • the biopsy forceps with an integrated clamp head provided by the present invention, wherein the integrated clamp head includes an integrated left clamp head, a right clamp head and a clamp handle for connecting the left clamp head and the right clamp head.
  • Figure 1 is a schematic structural view of the jaw assembly of the first biopsy forceps provided by the present invention
  • FIG. 2 is a schematic structural diagram of the jaw assembly of the second biopsy forceps provided by the present invention.
  • 3A and 3B are respectively a front schematic view and a top schematic view of the outline of the punched out integrated biopsy forceps
  • 4A and 4B are respectively a front schematic view and a top schematic view of a spoon cup with an integrated clamp head stamped out;
  • Figures 5A and 5B are respectively a schematic front view and a schematic side view of the finished product of the integrated clamp head;
  • 6A and 6B are a schematic front view and a schematic side view of a flat-head tie rod pin, respectively;
  • Figure 7 is a schematic diagram of the structure of the needle point pull rod pin
  • 8A and 8B are a schematic front view and a schematic side view of the tie rod tube, respectively;
  • Figure 9 is a schematic structural view of the assembled clamp head kit
  • Figure 10 is a schematic diagram of the structure of the clamp head base
  • Figure 11 is a schematic diagram of the structure of the tie rod positioning block.
  • the present invention provides a biopsy forceps with an integrated forceps head.
  • the following is an example of needle-free biopsy forceps and needle-free biopsy forceps.
  • the needle-free biopsy forceps with an integrated clamp head includes an integrated clamp head 1, a flat-head tie rod pin 2, a tie rod tube 3, a tie rod positioning block 4, and a forceps head base 10.
  • the integrated clamp head 1 , Flat-head tie rod pin 2 and tie rod tube 3 form a pliers head kit.
  • the pliers head kit, pliers head base 10 and tie rod positioning block 4 are assembled to form a pliers head assembly.
  • the structure of the integrated pliers head 1 is shown in FIGS. 5A and 5B, and includes an integrally formed left pliers head 1a, a right pliers head 1b, and a pliers handle 1c for connecting the left pliers head 1a and the right pliers head 1b.
  • the one-piece clamp head is integrally formed from stainless steel material through a stamping process.
  • the pliers handle 1c is folded in half, and a central hole 1d is provided in the middle of the pliers handle 1c (see FIG. 3B and FIG. 4B).
  • the left pliers head 1a and the right pliers head 1b which are arranged at both ends of the pliers handle 1c, have elasticity and are shaped into an initial state that naturally opens to opposite sides; a pressure relief is formed in the left pliers head 1a and the right pliers head 1b, respectively ⁇ 1e.
  • the flat head tie rod pin 2 shown in Figure 6A and Figure 6B is a T-shaped tie rod pin with a large front and a small rear.
  • the head diameter of the flat head tie rod pin 2 is larger than the aperture of the center hole 1d; the diameter of the cylinder at the rear of the flat head tie rod pin 2 It is equal to or smaller than the diameter of the central hole 1d, and is approximately equal to the inner diameter of the tie rod tube 3.
  • the front end of the flat-head tie rod pin 2 is stuck in front of the center hole 1d, and the cylindrical body at the back of the flat-head tie rod pin 2 is inserted into the center hole 1d of the integrated clamp head 1, and then it is inserted and fixed with the tie rod tube 3 shown in Figure 8A and Figure 8B , Constitute the clamp head kit.
  • the structure of the clamp head kit is shown in Figure 9.
  • the tie rod tube 3 shown in FIGS. 8A and 8B is a round tube.
  • the tie rod positioning block 4 shown in FIG. 11 is another round tube; the inner diameter of the tie rod positioning block 4 is equal to the outer diameter of the tie rod tube 3.
  • the clamp head base 10 as 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 two blind hole regions 11 and 12 is provided in the plug.
  • the pliers head assembly is assembled inside the pliers head base 10 to form a pliers head assembly.
  • the tie rod tube 3 in the pliers head kit extends backward through the connecting hole 13, and the left pliers head 1a and the right pliers head 1b are restricted in the blind hole 11 at the front end of the pliers head base 10; the tie rod positioning block 4 is fixed on the tie rod tube 3
  • the tie rod positioning block 4 is defined in the blind hole 12 at the rear end of the clamp head base 10 to limit the maximum distance that the clamp head assembly can be pushed forward.
  • the above-mentioned forceps head assembly is subjected to the same procedures as the assembly procedure of the current biopsy forceps, such as cable butting, spring tube welding, and handle assembly, to obtain a complete biopsy forceps.
  • the pliers head assembly is obtained by assembling the integrated pliers head, the flat-head tie rod pin, and the tie rod tube together, and the pliers head assembly, the tie rod positioning block and the pliers head base are assembled together to obtain the pliers head assembly.
  • the pliers head assembly has a simple structure, low cost, and convenient assembly. The above-mentioned biopsy forceps simplifies the assembly process such as rivet welding and greatly improves the production and processing efficiency, in addition to eliminating the four-bar parts.
  • the forceps used in the biopsy forceps are integrated forceps obtained by a stamping and forming process, the assembly accuracy is high, which can effectively improve the anastomosis of the forceps components and reduce the bleeding problem caused by sampling.
  • a needle biopsy forceps with an integrated clamp head includes an integrated clamp head 1, a needle-point tie rod pin 5, a tie rod tube 3, a tie rod positioning block 4, and a forceps head base 10.
  • the integrated forceps head 1 , Needle-point tie rod pin 5 and tie rod tube 3 form a pliers head kit, the pliers head kit, pliers head base 10, and tie rod positioning block 4 are assembled to form a pliers head assembly.
  • the needle tip pull rod pin 5 shown in FIG. 7 is a pull rod pin with a sampling needle portion 5a at the front end, and a protrusion 5c protruding outward is provided at the foremost end of the sampling needle portion 5a. .
  • the sampling needle portion 5a extends forward in the sample storage slot 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 passes through the central hole 1d of the integrated clamp head 1 and then is inserted into the pull rod tube 3. Connect and fix to form a clamp head kit.
  • the process of assembling the forceps head assembly, the forceps head base 10, and the tie rod positioning block 4 into a forceps head assembly, and the process of assembling the forceps head assembly and other parts into a biopsy forceps are the same as those in the first embodiment. Repeat again.
  • a long sample storage slot is provided in the forceps head base 10.
  • multiple continuous opening and closing of the integrated clamp head 1 can be realized to complete multiple continuous sampling; the sample tissue obtained by multiple sampling is sequentially stored in On the sampling needle 5a between the left clamp head 1a and the right clamp head 1b.
  • the protrusion 5c provided at the foremost end of the sampling needle portion 5a can prevent the sample tissue stored on the sampling needle portion 5a from falling off.
  • the needle biopsy forceps provided by this embodiment also have the advantages of simple structure, low cost, and convenient assembly.
  • the above structure simplifies the assembly process such as rivet welding and greatly improves the production and processing efficiency in addition to eliminating the parts of the four-bar linkage.
  • the jaws used in the biopsy forceps are integrated jaws obtained by stamping and forming, the assembly accuracy is high, which can effectively improve the anastomosis of the jaw components and reduce the bleeding problem caused by sampling.
  • the present invention also provides a method for manufacturing a biopsy forceps with an integrated clamp head, which includes the following steps: manufacturing an integrated clamp head; assembling the integrated clamp head, tie rod pin, and tie rod tube into a clamp head set; The head base and the tie rod positioning block are assembled into a forceps head assembly; and the forceps head assembly, a pull cable, a spring tube, and a control handle are assembled into a biopsy forceps.
  • the material used in the entire forceps head assembly can be a stainless steel material that meets medical standards, for example, 2Cr13, 3Cr13 and other materials that meet the standards of biopsy forceps are used.
  • the integrated clamp head 1 is manufactured by a stamping process.
  • the manufacturing steps of the integrated clamp head 1 are as follows:
  • the jaw used in the biopsy forceps provided by the present invention is an integrated jaw obtained by stamping and forming, the assembly accuracy is high, the anastomosis of the jaw components can be effectively improved, and the bleeding problem caused by sampling can be reduced.
  • a pliers head set is formed.
  • the steps for assembling the clamp head kit are as follows: pass the tie rod pin (flat head tie rod pin 2 or needle point tie rod pin 5) through the center hole 1d of the integrated clamp head 1, and then insert and fix it with the tie rod tube 3 to complete the clamp head kit Assembly.
  • the tie rod pin and tie rod tube 3 can be welded into one body by means of laser welding.
  • the tie rod pin used When assembling the needle-free biopsy forceps, the tie rod pin used is the T-shaped flat-head tie rod pin 2 as shown in Figures 6A and 6B; when the needle biopsy forceps are assembled, the tie rod pin used is the front end shown in Figure 7 A needle point pull rod pin 5 having a sampling needle portion 5a. Both the flat-head tie rod pin 2 and the needle-point tie rod pin 5 can be obtained by machining.
  • the pliers head assembly is formed.
  • a section of stainless steel tube can be cut out by wire cutting as the tie rod tube 3.
  • the tie rod positioning block 4 shown in FIG. 11 is another round tube; the inner diameter of the tie rod positioning block 4 is almost equal to the outer diameter of the tie rod tube 3.
  • the clamp head base 10 as 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 two blind hole regions 11 and 12 is provided in the plug.
  • the steps of assembling the pliers head assembly are as follows: install the pliers head kit into the pliers head base 10 shown in FIG. 10; the integrated pliers head 1 is restricted in the blind hole area 11 at the front end of the pliers head base 10; and the tie rod tube 3 is passed through After passing through the connecting hole 13, insert it into the blind hole area 12 at the rear end of the clamp head base 10; then set the tie rod positioning block 4 on the outer wall of the tie rod tube 3, determine the position of the tie rod positioning block 4, and connect the tie rod positioning block 4 with laser welding
  • the tie rod tube 3 is welded into one body to obtain the clamp head assembly.
  • the function of the tie rod positioning block 4 is to limit the maximum distance that the pliers head assembly can be pushed forward.
  • the position of the tie rod positioning block 4 needs to ensure that when the tie rod positioning block 4 is pushed to the blocked portion of the clamp head base 10, the integrated clamp head 1 will not be pushed out of the clamp head base 10.
  • the forceps head assembly is subjected to the same procedures as cable butting, spring tube welding, and handle assembly as in the current biopsy forceps assembly process to obtain a complete biopsy forceps.
  • the integrated forceps head 1 moves downwards and moves into the forceps head base 10, due to the left clamp head 1a and the right clamp head 1b
  • the side wall of the pliers is in contact with the pliers head base 10, and the squeezing forces the two pliers heads of the integrated pliers head 1 to close, thereby achieving the closing function of the pliers head;
  • the left pliers head 1a and the right pliers head 1b respectively extend from the clamp head base 10, and realize the function of opening the clamp head by virtue of the elastic feature of the integrated clamp head 1 itself.
  • the present invention provides a new type of biopsy forceps.
  • the pliers head assembly is composed of an integrated pliers head 1, a needle-point pull rod pin 5 or a flat-head pull rod pin 2, a pull rod tube 3, a pull rod positioning block 4 and a clamp head base 10.
  • the advantages are simple assembly and low cost. Compared with the various clamp head components currently used, it saves the connecting rod parts, simplifies the assembly process such as rivet welding, and greatly improves the production and processing efficiency.
  • the biopsy forceps with integrated clamp heads provided by the present invention are assembled by assembling the clamp head kit with the integrated clamp head, the tie rod pin, and the tie rod tube; and the forceps kit, tie rod positioning block and clamp head base are assembled, Assemble the forceps head assembly; then assemble the forceps head assembly, the cable, the spring tube and the control handle into the entire biopsy forceps; the structure and assembly process of the biopsy forceps are simplified.

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Abstract

Biopsy forceps with an integrated forceps head and a manufacturing method therefor. The integrated forceps head (1) comprises an integrally formed left forceps head (1a) and right forceps head (1b) and a forceps handle (1c) used for connecting the left forceps head (1a) and the right forceps head (1b), the forceps head (1c) being arranged in a folded manner, and a central hole (1d) being arranged in the middle of the forceps handle (1c); the left forceps head (1a) and the right forceps (1b) arranged on the two ends of the forceps handle (1c) have elasticity and are shaped into an initial state that opens in the opposite direction. The integrated forceps head (1), pull rod pins (2, 5), and a pull rod tube (3) are assembled into a forceps head sleeve; the forceps head sleeve, a pull rod positioning block (4), and a forceps head base (10) are assembled into a forceps head assembly; and then the forceps head assembly and a cable, a spring tube, and a control handle are assembled into the entire biopsy forceps, thereby simplifying the structure and the assembly process of the biopsy forceps.

Description

具有一体式钳头的活检钳及其制造方法Biopsy forceps with integrated forceps head and manufacturing method thereof 技术领域Technical field
本发明涉及一种活检钳，尤其涉及一种具有一体式钳头的活检钳，同时涉及该活检钳的制造方法。The invention relates to a biopsy forceps, in particular to a biopsy forceps with an integrated forceps head, and also to a manufacturing method of the biopsy forceps.
背景技术Background technique
活检钳是一种用于对人体腹腔内病灶部位进行咬切取样的工具，一般与内窥镜配合使用。在内窥镜检查中，当需要对病变部位进行病理检查时，通过内窥镜钳道将活检钳送入病人体内，夹取病变部位的组织。通过活检钳取样痛苦小、创伤小，故深受医生和病人的欢迎。The biopsy forceps is a tool for bite-cutting and sampling the lesions in the human abdominal cavity, and is generally used in conjunction with an endoscope. In endoscopy, when pathological examination of the lesion is needed, the biopsy forceps are sent into the patient through the endoscopic forceps to clamp the tissue of the lesion. Sampling with biopsy forceps is less painful and less traumatic, so it is very popular with doctors and patients.
活检钳一般由钳头组件、细长拉索、同样细长的套在拉索外面的弹簧管以及手柄组成，拉索的一端与钳头组件中的四连杆机构相连，另一端与手柄上的活动手柄相连，弹簧管的一端与钳头组件相连，另一端与手柄相连。推、拉活动手柄带动拉索，拉索带动四连杆机构动作，四连杆机构带动钳头组件上的两个对称设置的钳头实现开、合，从而将可疑组织取出体外。Biopsy forceps are generally composed of a pliers head assembly, a slender cable, the same slender spring tube sheathed outside the cable, and a handle. One end of the cable is connected to the four-bar linkage in the pliers head assembly, and the other end is connected to the handle. The movable handle is connected with the spring tube, one end of the spring tube is connected with the clamp head assembly, and the other end is connected with the handle. Pushing and pulling the movable handle drives the pull cable, the pull cable drives the four-bar linkage mechanism, and the four-bar linkage mechanism drives the two symmetrically arranged clamp heads on the clamp head assembly to open and close, thereby taking out the suspicious tissue from the body.
在现有活检钳的钳头组件中，两个独立的钳头分别通过铆钉与钳头支架连接，并通过四连杆机构对两个独立的钳头进行推拉，实现钳头的开合控制。这种钳头组件结构复杂，在组装时工艺复杂，组装难度大。In the clamp head assembly of the existing biopsy forceps, two independent clamp heads are respectively connected with the clamp head support through a rivet, and the two independent clamp heads are pushed and pulled through a four-link mechanism to realize the opening and closing control of the clamp heads. The clamp head assembly has a complex structure, a complicated process during assembly, and a difficult assembly.
发明内容Summary of the invention
本发明所要解决的首要技术问题在于提供一种具有一体式钳头的活检钳。The primary technical problem to be solved by the present invention is to provide a biopsy forceps with an integrated forceps head.
本发明所要解决的另一技术问题在于提供上述活检钳的制造方法。Another technical problem to be solved by the present invention is to provide a method for manufacturing the above-mentioned biopsy forceps.
为了实现上述技术目的，本发明采用下述技术方案：In order to achieve the above technical objectives, the present invention adopts the following technical solutions:
根据本发明实施例的第一方面，提供了一种具有一体式钳头的活检钳，其中，所述一体式钳头包括一体成型的左钳头、右钳头和用于连接所述左钳头和所述右钳头的钳柄，所述钳柄对折设置，在所述钳柄的中部设置有中心孔；设置在所述钳柄两端的所述左钳头和所述右 钳头具有弹性，并被定型为向相反方向张开的初始状态。According to a first aspect of the embodiments of the present invention, there is provided a biopsy forceps with an integrated forceps head, wherein the integrated forceps head includes an integrally formed left forceps head, a right forceps head, and a pair for connecting the left forceps Head and the pliers handle of the right pliers head, the pliers handle is arranged in half, and a central hole is provided in the middle of the pliers handle; the left pliers head and the right pliers head provided at both ends of the pliers handle have It is elastic and is shaped into the initial state of opening in the opposite direction.
其中较优地，所述活检钳还包括拉杆销钉和拉杆管；所述拉杆销钉的前端卡在中心孔前方，所述拉杆销钉的后端***所述中心孔后与所述拉杆管插接并固定，组成钳头套件。Preferably, the biopsy forceps further includes a tie rod pin and a tie rod tube; the front end of the tie rod pin is stuck in front of the center hole, and the rear end of the tie rod pin is inserted into the center hole and then inserted into the tie rod tube and Fixed to form a clamp head kit.
其中较优地，所述拉杆销钉是T形的平头拉杆销钉。Preferably, the tie rod pin is a T-shaped flat head tie rod pin.
或者，其中较优地，所述拉杆销钉是前端具有取样针部的针尖拉杆销钉；所述针尖拉杆销钉的后端穿过中心孔后与所述拉杆管插接并固定；所述取样针部在所述左钳头和所述右钳头之间的样品存储槽内向前延伸。在所述取样针部的前端形成有向外侧突出的凸起。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 passes through the central hole and then is inserted and fixed with the pull rod tube; the sampling needle part It extends forward in the sample storage slot between the left clamp head and the right clamp head. A protrusion protruding outward is formed at the tip of the sampling needle.
其中较优地，所述活检钳还包括钳头座和拉杆定位块；其中，所述钳头座是两端具有盲孔、中部设置封堵的套筒，并且封堵中设置有穿透两个盲孔区域的连接孔；Preferably, the biopsy forceps further includes a forceps head base and a tie rod positioning block; wherein, the forceps head base is a sleeve with blind holes at both ends and a plug in the middle, and two penetrating tools are provided in the plug. Connecting holes in the blind hole area;
所述拉杆定位块是固定在所述拉杆管外壁上的圆管；The tie rod positioning block is a round tube fixed on the outer wall of the tie rod tube;
所述钳头套件中的拉杆管穿过连接孔向后延伸，所述左钳头和右钳头被限制在钳头座前端的盲孔中；所述拉杆定位块被限定在所述钳头座后端的盲孔中，用于限定所述钳头套件向前推动的最大距离。The tie rod tube in the pliers head kit extends backward through the connecting hole, the left pliers head and the right pliers head are constrained in the blind hole at the front end of the pliers head base; the tie rod positioning block is limited to the pliers head The blind hole at the rear end of the seat is used to limit the maximum distance that the clamp head assembly can be pushed forward.
根据本发明实施例的第二方面，提供了一种上述活检钳的制造方法，包括如下制造一体式钳头的步骤：According to a second aspect of the embodiments of the present invention, there is provided a method for manufacturing the above-mentioned biopsy forceps, including the following steps of manufacturing an integrated forceps head:
(1)冲压裁出所述一体式钳头的外形轮廓，并冲压出位于钳头位置的两个减压孔和位于中心位置的中心孔；(1) Punching out the contour of the integrated clamp head, and punching out two pressure relief holes at the position of the clamp head and a central hole at the center;
(2)通过冲压拉伸成型在所述一体式钳头的两端得到两个勺杯；(2) Two spoon cups are obtained at both ends of the integrated clamp head by stamping, drawing and forming;
(3)通过冲压加工折出所述一体式钳头的整体形状；(3) Fold out the overall shape of the integrated clamp head by stamping;
(4)通过热处理加工获得所述一体式钳头的硬度和机械强度。(4) Obtain the hardness and mechanical strength of the integrated clamp head through heat treatment.
其中较优地，还包括如下组装钳头套件的步骤：将拉杆销钉从所述一体式钳头的中心孔中穿过后，与拉杆管插接并固定，组成钳头套件。Preferably, it further includes the following steps of assembling the pliers head kit: after the tie rod pin passes through the central hole of the integrated pliers head, it is inserted and fixed with the tie rod tube to form the pliers head kit.
其中较优地，当组装无针活检钳时，使用的拉杆销钉是T形的平头拉杆销钉；当组装有针活检钳时，使用的拉杆销钉是前端具有取样针部的针尖拉杆销钉。Preferably, when assembling the needle-free biopsy forceps, the tie rod pin used is a T-shaped flat-head tie rod pin; when assembling the needle biopsy forceps, the tie rod pin used is a needle tip tie rod pin with a sampling needle at the front end.
其中较优地，还包括如下组装钳头组件的步骤：将所述钳头套件装入钳头座，所述一体式钳头被限制在所述钳头座前端的盲孔区域内； 所述拉杆管穿过连接孔后***所述钳头座后端的盲孔区域内，并在所述拉杆管后端的外壁上设置拉杆定位块，用于限定所述钳头套件向前推动的最大距离。Preferably, it further includes the following step of assembling the pliers head assembly: installing the pliers head assembly into the pliers head base, and the integrated pliers head is restricted in the blind hole area at the front end of the pliers head base; The tie rod tube passes through the connecting hole and is inserted into the blind hole area at the rear end of the pliers head seat, and a tie rod positioning block is arranged on the outer wall of the rear end of the tie rod tube to limit the maximum distance that the pliers head assembly can be pushed forward.
本发明所提供的具有一体式钳头的活检钳，其中，一体式钳头包括一体成型的左钳头、右钳头和用于连接左钳头和右钳头的钳柄。通过将一体式钳头、拉杆销钉、拉杆管组装成钳头套件；并将钳头套件、拉杆定位块及钳头座组装成钳头组件；然后将钳头组件、拉索、弹簧管和控制手柄组装成整个活检钳；简化了活检钳的结构及组装工艺。The biopsy forceps with an integrated clamp head provided by the present invention, wherein the integrated clamp head includes an integrated left clamp head, a right clamp head and a clamp handle for connecting the left clamp head and the right clamp head. By assembling the one-piece pliers head, tie rod pin, and tie rod tube into a pliers head kit; assembling the pliers head kit, tie rod positioning block and pliers head seat into a pliers head assembly; then the pliers head assembly, pull cable, spring tube and control The handle is assembled into the entire biopsy forceps; the structure and assembly process of the biopsy forceps are simplified.
附图说明Description of the drawings
图1是本发明所提供的第一种活检钳的钳头组件的结构示意图；Figure 1 is a schematic structural view of the jaw assembly of the first biopsy forceps provided by the present invention;
图2是本发明所提供的第二种活检钳的钳头组件的结构示意图；2 is a schematic structural diagram of the jaw assembly of the second biopsy forceps provided by the present invention;
图3A和图3B分别是冲压出一体式活检钳的外形轮廓的主视示意图和俯视示意图；3A and 3B are respectively a front schematic view and a top schematic view of the outline of the punched out integrated biopsy forceps;
图4A和图4B分别是冲压出一体式钳头的勺杯的主视示意图和俯视示意图；4A and 4B are respectively a front schematic view and a top schematic view of a spoon cup with an integrated clamp head stamped out;
图5A和图5B分别是一体式钳头成品的主视示意图和侧视示意图；Figures 5A and 5B are respectively a schematic front view and a schematic side view of the finished product of the integrated clamp head;
图6A和图6B分别是平头拉杆销钉的主视示意图和侧视示意图；6A and 6B are a schematic front view and a schematic side view of a flat-head tie rod pin, respectively;
图7是针尖拉杆销钉的结构示意图；Figure 7 is a schematic diagram of the structure of the needle point pull rod pin;
图8A和图8B分别是拉杆管的主视示意图和侧视示意图；8A and 8B are a schematic front view and a schematic side view of the tie rod tube, respectively;
图9是组装后的钳头套件的结构示意图；Figure 9 is a schematic structural view of the assembled clamp head kit;
图10是钳头座的结构示意图；Figure 10 is a schematic diagram of the structure of the clamp head base;
图11是拉杆定位块的结构示意图。Figure 11 is a schematic diagram of the structure of the tie rod positioning block.
具体实施方式detailed description
下面结合附图和具体的实施例对本发明的技术方案进行进一步地详细描述。The technical solution of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
为了简化活检钳的结构和制作工艺，本发明提供了具有一体式钳头的活检钳。下面分别以无针活检钳和有针活检钳为例进行介绍。In order to simplify the structure and manufacturing process of the biopsy forceps, the present invention provides a biopsy forceps with an integrated forceps head. The following is an example of needle-free biopsy forceps and needle-free biopsy forceps.
第一实施例First embodiment
如图1所示，具有一体式钳头的无针活检钳，包括一体式钳头1、平头拉杆销钉2、拉杆管3、拉杆定位块4和钳头座10，其中，一体式钳头1、平头拉杆销钉2和拉杆管3组成钳头套件，钳头套件和钳 头座10、拉杆定位块4组装后，组成钳头组件。As shown in Figure 1, the needle-free biopsy forceps with an integrated clamp head includes an integrated clamp head 1, a flat-head tie rod pin 2, a tie rod tube 3, a tie rod positioning block 4, and a forceps head base 10. The integrated clamp head 1 , Flat-head tie rod pin 2 and tie rod tube 3 form a pliers head kit. The pliers head kit, pliers head base 10 and tie rod positioning block 4 are assembled to form a pliers head assembly.
具体来说，一体式钳头1的结构如图5A和5B所示，包括一体成型的左钳头1a、右钳头1b和用于连接左钳头1a和右钳头1b的钳柄1c。一体式钳头由不锈钢材料通过冲压工艺一体成型。钳柄1c对折设置，在钳柄1c的中部设置有中心孔1d(参见图3B和图4B)。设置在钳柄1c两端的左钳头1a和右钳头1b具有弹性，并被定型为向相对两侧自然张开的初始状态；在左钳头1a和右钳头1b中分别形成有减压孔1e。Specifically, the structure of the integrated pliers head 1 is shown in FIGS. 5A and 5B, and includes an integrally formed left pliers head 1a, a right pliers head 1b, and a pliers handle 1c for connecting the left pliers head 1a and the right pliers head 1b. The one-piece clamp head is integrally formed from stainless steel material through a stamping process. The pliers handle 1c is folded in half, and a central hole 1d is provided in the middle of the pliers handle 1c (see FIG. 3B and FIG. 4B). The left pliers head 1a and the right pliers head 1b, which are arranged at both ends of the pliers handle 1c, have elasticity and are shaped into an initial state that naturally opens to opposite sides; a pressure relief is formed in the left pliers head 1a and the right pliers head 1b, respectively孔1e.
如图6A和图6B所示的平头拉杆销钉2是前大后小的T形拉杆销钉，平头拉杆销钉2头部的直径大于中心孔1d的孔径；平头拉杆销钉2后部的圆柱体的直径等于或小于中心孔1d的孔径，并与拉杆管3的内径大致相等。平头拉杆销钉2的前端卡在中心孔1d前方，平头拉杆销钉2后部的圆柱体***一体式钳头1的中心孔1d后，与图8A和图8B所示的拉杆管3插接并固定，组成钳头套件。钳头套件的结构如图9所示。The flat head tie rod pin 2 shown in Figure 6A and Figure 6B is a T-shaped tie rod pin with a large front and a small rear. The head diameter of the flat head tie rod pin 2 is larger than the aperture of the center hole 1d; the diameter of the cylinder at the rear of the flat head tie rod pin 2 It is equal to or smaller than the diameter of the central hole 1d, and is approximately equal to the inner diameter of the tie rod tube 3. The front end of the flat-head tie rod pin 2 is stuck in front of the center hole 1d, and the cylindrical body at the back of the flat-head tie rod pin 2 is inserted into the center hole 1d of the integrated clamp head 1, and then it is inserted and fixed with the tie rod tube 3 shown in Figure 8A and Figure 8B , Constitute the clamp head kit. The structure of the clamp head kit is shown in Figure 9.
如图8A和图8B所示的拉杆管3是一截圆管。如图11所示的拉杆定位块4是另一截圆管；拉杆定位块4的内径与拉杆管3的外径相等。The tie rod tube 3 shown in FIGS. 8A and 8B is a round tube. The tie rod positioning block 4 shown in FIG. 11 is another round tube; the inner diameter of the tie rod positioning block 4 is equal to the outer diameter of the tie rod tube 3.
如图10所示的钳头座10是两端具有盲孔、中部设置封堵的套筒，并且封堵中设置有穿透两个盲孔区域11、12的连接孔13。The clamp head base 10 as 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 two blind hole regions 11 and 12 is provided in the plug.
如图1所示，将钳头套件组装在钳头座10的内部，组装成钳头组件。钳头套件中的拉杆管3穿过连接孔13向后延伸，左钳头1a和右钳头1b被限制在钳头座10前端的盲孔11中；拉杆定位块4是固定在拉杆管3外壁上的圆管，拉杆定位块4被限定在钳头座10后端的盲孔12中，用于限定钳头套件向前推动的最大距离。As shown in Figure 1, the pliers head assembly is assembled inside the pliers head base 10 to form a pliers head assembly. The tie rod tube 3 in the pliers head kit extends backward through the connecting hole 13, and the left pliers head 1a and the right pliers head 1b are restricted in the blind hole 11 at the front end of the pliers head base 10; the tie rod positioning block 4 is fixed on the tie rod tube 3 For the round tube on the outer wall, the tie rod positioning block 4 is defined in the blind hole 12 at the rear end of the clamp head base 10 to limit the maximum distance that the clamp head assembly can be pushed forward.
将上述钳头组件进行与现行活检钳装配工序相同的拉索对接、弹簧管焊接以及手柄装配等工序，得到一条完整的活检钳。The above-mentioned forceps head assembly is subjected to the same procedures as the assembly procedure of the current biopsy forceps, such as cable butting, spring tube welding, and handle assembly, to obtain a complete biopsy forceps.
使用图1所示的钳头组件装配成活检钳后，当拉杆管3在拉索作用下向下牵引时，一体式钳头1向下运动朝着钳头座10内移动，由于左钳头1a和右钳头1b的侧壁与钳头座10相接触，挤压迫使钳头闭合，从而实现钳头的闭合功能；当推动拉杆管3向上运动时，一体式钳头1从钳头座内伸出，借助钳头自身的弹性特征，左钳头1a和右钳头1b 张开。After assembling the biopsy forceps with the forceps head assembly shown in Figure 1, when the tie rod tube 3 is pulled down under the action of the cable, the integrated forceps head 1 moves downwards and moves towards the forceps head base 10, due to the left clamp head The side walls of 1a and the right pliers head 1b are in contact with the pliers head base 10, and the pliers heads are forced to close by squeezing, thereby realizing the closing function of the pliers heads; when the pull rod tube 3 is pushed upwards, the integrated pliers head 1 is removed from the pliers head base Inward extension, with the help of the elasticity of the pliers head itself, the left pliers head 1a and the right pliers head 1b are opened.
在该实施例中，通过将一体式钳头、平头拉杆销钉和拉杆管组装在一起，获得钳头套件，并将钳头套件、拉杆定位块和钳头座组装在一起，获得钳头组件。相对于具有四连杆结构的钳头组件，上述钳头组件结构简单、成本低，并且组装方便。上述活检钳，除去省去了四连杆的零件外，还简化了铆钉焊接等装配过程，极大地提高了生产加工效率。In this embodiment, the pliers head assembly is obtained by assembling the integrated pliers head, the flat-head tie rod pin, and the tie rod tube together, and the pliers head assembly, the tie rod positioning block and the pliers head base are assembled together to obtain the pliers head assembly. Compared with the pliers head assembly having a four-bar linkage structure, the pliers head assembly has a simple structure, low cost, and convenient assembly. The above-mentioned biopsy forceps simplifies the assembly process such as rivet welding and greatly improves the production and processing efficiency, in addition to eliminating the four-bar parts.
此外，由于在该活检钳中所使用的钳头是采用冲压成型工艺获得的一体式钳头，装配精度高，可以有效地改善钳头组件的吻合，降低取样引起的出血问题。In addition, since the forceps used in the biopsy forceps are integrated forceps obtained by a stamping and forming process, the assembly accuracy is high, which can effectively improve the anastomosis of the forceps components and reduce the bleeding problem caused by sampling.
第二实施例Second embodiment
如图2所示，具有一体式钳头的有针活检钳，包括一体式钳头1、针尖拉杆销钉5、拉杆管3、拉杆定位块4和钳头座10，其中，一体式钳头1、针尖拉杆销钉5和拉杆管3组成钳头套件，钳头套件和钳头座10、拉杆定位块4组装后，组成钳头组件。As shown in Fig. 2, a needle biopsy forceps with an integrated clamp head includes an integrated clamp head 1, a needle-point tie rod pin 5, a tie rod tube 3, a tie rod positioning block 4, and a forceps head base 10. The integrated forceps head 1 , Needle-point tie rod pin 5 and tie rod tube 3 form a pliers head kit, the pliers head kit, pliers head base 10, and tie rod positioning block 4 are assembled to form a pliers head assembly.
其中，在钳头套件中，除去针尖拉杆销钉5与第一实施例所使用的平头拉杆销钉2具有区别之外，其余结构均与第一实施例所提供的无针活检钳的结构相同。在该实施例所提供的有针活检钳中，如图7所示的针尖拉杆销钉5是前端具有取样针部5a的拉杆销钉，在取样针部5a的最前端设置向外侧突出的凸起5c。取样针部5a在左钳头1a和右钳头1b之间的样品存储槽内向前延伸，针尖拉杆销钉5的后端5b穿过一体式钳头1的中心孔1d后与拉杆管3插接并固定，组成钳头套件。Among them, in the forceps head kit, except for the difference between the needle tip pull rod pin 5 and 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 by this embodiment, the needle tip pull rod pin 5 shown in FIG. 7 is a pull rod pin with a sampling needle portion 5a at the front end, and a protrusion 5c protruding outward is provided at the foremost end of the sampling needle portion 5a. . The sampling needle portion 5a extends forward in the sample storage slot 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 passes through the central hole 1d of the integrated clamp head 1 and then is inserted into the pull rod tube 3. Connect and fix to form a clamp head kit.
在该实施例中，钳头套件和钳头座10、拉杆定位块4组装成钳头组件的过程，以及钳头组件与其他零件组装成活检钳的过程与第一实施例相同，在此不再重复。In this embodiment, the process of assembling the forceps head assembly, the forceps head base 10, and the tie rod positioning block 4 into a forceps head assembly, and the process of assembling the forceps head assembly and other parts into a biopsy forceps are the same as those in the first embodiment. Repeat again.
在该有针活检钳中，在钳头座10内设置有长条形的样品存储槽。通过向后牵拉一体式钳头1或向前推送一体式钳头1，可以实现一体式钳头1的多次连续开合，完成多次连续取样；多次取样获得的样品组织依次存储在左钳头1a和右钳头1b之间的取样针部5a上。在一次性钳头1多次开合的过程中，设置在取样针部5a的最前端的凸起5c 可以防止存储于取样针部5a上的样品组织脱落。In the needle biopsy forceps, a long sample storage slot is provided in the forceps head base 10. By pulling the integrated clamp head 1 backward or pushing the integrated clamp head 1 forward, multiple continuous opening and closing of the integrated clamp head 1 can be realized to complete multiple continuous sampling; the sample tissue obtained by multiple sampling is sequentially stored in On the sampling needle 5a between the left clamp head 1a and the right clamp head 1b. In the process of multiple opening and closing of the disposable forceps 1, the protrusion 5c provided at the foremost end of the sampling needle portion 5a can prevent the sample tissue stored on the sampling needle portion 5a from falling off.
本实施例所提供的有针活检钳，同样具有结构简单、成本低，并且组装方便的优点。上述结构除去省去了四连杆的零件外，还简化了铆钉焊接等装配过程，极大地提高了生产加工效率。The needle biopsy forceps provided by this embodiment also have the advantages of simple structure, low cost, and convenient assembly. The above structure simplifies the assembly process such as rivet welding and greatly improves the production and processing efficiency in addition to eliminating the parts of the four-bar linkage.
同样，由于在该活检钳中所使用的钳头是采用冲压成型工艺加工获得的一体式钳头，装配精度高，可以有效地改善钳头组件的吻合，降低取样引起的出血问题。Similarly, because the jaws used in the biopsy forceps are integrated jaws obtained by stamping and forming, the assembly accuracy is high, which can effectively improve the anastomosis of the jaw components and reduce the bleeding problem caused by sampling.
第三实施例The third embodiment
上面对两种活检钳的结构进行了详细介绍，下面介绍相应的制造方法。The two types of biopsy forceps are described in detail above, and the corresponding manufacturing methods are introduced below.
本发明同时提供了具有一体式钳头的活检钳的制造方法，包括如下步骤：制造一体式钳头；将一体式钳头和拉杆销钉、拉杆管组装成钳头套件；将钳头套件和钳头座、拉杆定位块组装成钳头组件；以及将钳头组件和拉索、弹簧管、控制手柄组装成活检钳。其中，整个钳头组件所使用的材料可以是符合医疗标准的不锈钢材料，例如，采用2Cr13，3Cr13等符合活检钳的标准规定的材料。The present invention also provides a method for manufacturing a biopsy forceps with an integrated clamp head, which includes the following steps: manufacturing an integrated clamp head; assembling the integrated clamp head, tie rod pin, and tie rod tube into a clamp head set; The head base and the tie rod positioning block are assembled into a forceps head assembly; and the forceps head assembly, a pull cable, a spring tube, and a control handle are assembled into a biopsy forceps. Among them, the material used in the entire forceps head assembly can be a stainless steel material that meets medical standards, for example, 2Cr13, 3Cr13 and other materials that meet the standards of biopsy forceps are used.
具体来说，首先，采用冲压成型的工艺制造一体式钳头1。Specifically, first, the integrated clamp head 1 is manufactured by a stamping process.
一体式钳头1的制造步骤如下：The manufacturing steps of the integrated clamp head 1 are as follows:
(1)如图3A和图3B所示，冲压裁出一体式钳头1的外形轮廓，并冲压出位于钳头位置的两个减压孔1e和设置在中心位置的中心孔1d；(1) As shown in Figures 3A and 3B, punch out the contour of the integrated clamp head 1, and punch out two pressure relief holes 1e at the position of the clamp head and a center hole 1d at the center position;
(2)如图4A和图4B所示，通过冲压拉伸成型在一体式钳头1的两端得到两个勺杯(即左钳头1a和右钳头1b)；(2) As shown in Fig. 4A and Fig. 4B, two spoon cups (ie the left pliers head 1a and the right pliers head 1b) are obtained at both ends of the integrated clamp head 1 by stamping and stretching;
(3)如图5A和5B所示，通过冲压加工折出一体式钳头1的整体形状；(3) As shown in Figures 5A and 5B, the overall shape of the integrated clamp head 1 is folded out by punching;
(4)通过热处理加工获得一体式钳头1的硬度和机械强度。(4) The hardness and mechanical strength of the integrated clamp head 1 are obtained through heat treatment.
由于在本发明所提供的活检钳中所使用的钳头是采用冲压成型工艺加工获得的一体式钳头，装配精度高，可以有效地改善钳头组件的吻合，降低取样引起的出血问题。Since the jaw used in the biopsy forceps provided by the present invention is an integrated jaw obtained by stamping and forming, the assembly accuracy is high, the anastomosis of the jaw components can be effectively improved, and the bleeding problem caused by sampling can be reduced.
其次，通过将一体式钳头1和拉杆销钉(平头拉杆销钉2或针尖拉杆销钉5)、拉杆管组装在一起，组成钳头套件。Secondly, by assembling the integrated pliers head 1 and the tie rod pin (flat-head tie rod pin 2 or needle tip tie rod pin 5), and the tie rod tube, a pliers head set is formed.
组装钳头套件的步骤如下：将拉杆销钉(平头拉杆销钉2或针尖拉杆销钉5)从一体式钳头1的中心孔1d中穿过后，与拉杆管3插接并固定，从而完成钳头套件的组装。具体可以通过激光焊接的方式，将拉杆销钉和拉杆管3焊为一体。The steps for assembling the clamp head kit are as follows: pass the tie rod pin (flat head tie rod pin 2 or needle point tie rod pin 5) through the center hole 1d of the integrated clamp head 1, and then insert and fix it with the tie rod tube 3 to complete the clamp head kit Assembly. Specifically, the tie rod pin and tie rod tube 3 can be welded into one body by means of laser welding.
当组装无针活检钳时，使用的拉杆销钉是如图6A和图6B所示的T形的平头拉杆销钉2；当组装有针活检钳时，使用的拉杆销钉是如图7所示的前端具有取样针部5a的针尖拉杆销钉5。平头拉杆销钉2和针尖拉杆销钉5均可以通过机加工的方式获得。When assembling the needle-free biopsy forceps, the tie rod pin used is the T-shaped flat-head tie rod pin 2 as shown in Figures 6A and 6B; when the needle biopsy forceps are assembled, the tie rod pin used is the front end shown in Figure 7 A needle point pull rod pin 5 having a sampling needle portion 5a. Both the flat-head tie rod pin 2 and the needle-point tie rod pin 5 can be obtained by machining.
第三，通过将上述钳头套件和钳头座10、拉杆定位块组装在一起，组成钳头组件。Third, by assembling the pliers head assembly, the pliers head base 10 and the tie rod positioning block together, the pliers head assembly is formed.
如图8A和图8B所示，可以通过线切割裁出一段不锈钢管作为拉杆管3。如图11所示的拉杆定位块4是另一截圆管；拉杆定位块4的内径与拉杆管3的外径几乎相等。As shown in FIG. 8A and FIG. 8B, a section of stainless steel tube can be cut out by wire cutting as the tie rod tube 3. The tie rod positioning block 4 shown in FIG. 11 is another round tube; the inner diameter of the tie rod positioning block 4 is almost equal to the outer diameter of the tie rod tube 3.
如图10所示的钳头座10是两端具有盲孔、中部设置封堵的套筒，并且封堵中设置有穿透两个盲孔区域11、12的连接孔13。The clamp head base 10 as 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 two blind hole regions 11 and 12 is provided in the plug.
组装钳头组件的步骤如下：将钳头套件装入图10所示的钳头座10中；一体式钳头1被限制在钳头座10前端的盲孔区域11内；将拉杆管3穿过连接孔13后***钳头座10后端的盲孔区域12内；然后将拉杆定位块4设置在拉杆管3的外壁上，确定拉杆定位块4的位置后通过激光焊接将拉杆定位块4与拉杆管3焊接成一体，得到钳头组件。拉杆定位块4的作用在于限定钳头套件向前推动的最大距离。拉杆定位块4的位置需确保拉杆定位块4推到钳头座10的封堵部位时，一体式钳头1不会被推出钳头座10。The steps of assembling the pliers head assembly are as follows: install the pliers head kit into the pliers head base 10 shown in FIG. 10; the integrated pliers head 1 is restricted in the blind hole area 11 at the front end of the pliers head base 10; and the tie rod tube 3 is passed through After passing through the connecting hole 13, insert it into the blind hole area 12 at the rear end of the clamp head base 10; then set the tie rod positioning block 4 on the outer wall of the tie rod tube 3, determine the position of the tie rod positioning block 4, and connect the tie rod positioning block 4 with laser welding The tie rod tube 3 is welded into one body to obtain the clamp head assembly. The function of the tie rod positioning block 4 is to limit the maximum distance that the pliers head assembly can be pushed forward. The position of the tie rod positioning block 4 needs to ensure that when the tie rod positioning block 4 is pushed to the blocked portion of the clamp head base 10, the integrated clamp head 1 will not be pushed out of the clamp head base 10.
最后，将钳头组件进行与现行活检钳装配工序同样的拉索对接、弹簧管焊接、以及手柄装配等工序，得到一条完整的活检钳。Finally, the forceps head assembly is subjected to the same procedures as cable butting, spring tube welding, and handle assembly as in the current biopsy forceps assembly process to obtain a complete biopsy forceps.
使用钳头组件装配成活检钳后，当拉杆管在拉索作用下向下牵引时，一体式钳头1向下运动朝着钳头座10内移动，由于左钳头1a和右钳头1b的侧壁与钳头座10相接触，挤压迫使一体式钳头1的两个钳头闭合，从而实现钳头的闭合功能；当推动拉杆管向上运动时，左钳头1a和右钳头1b分别从钳头座10内伸出，借助一体式钳头1自身的弹性特征，实现钳头张开的功能。After assembling the biopsy forceps with the forceps head assembly, when the pull rod tube is pulled down under the action of the cable, the integrated forceps head 1 moves downwards and moves into the forceps head base 10, due to the left clamp head 1a and the right clamp head 1b The side wall of the pliers is in contact with the pliers head base 10, and the squeezing forces the two pliers heads of the integrated pliers head 1 to close, thereby achieving the closing function of the pliers head; when the pull rod tube is pushed upward, the left pliers head 1a and the right pliers head 1b respectively extend from the clamp head base 10, and realize the function of opening the clamp head by virtue of the elastic feature of the integrated clamp head 1 itself.
本发明提供了一种新型的活检钳，钳头组件由一体式钳头1、针尖拉杆销钉5或平头拉杆销钉2、拉杆管3、拉杆定位块4和钳头座10组成。其优点在于装配简单、成本低。与现在使用的各类钳头组件对比，省去了连杆的零件外，简化铆钉焊接等装配过程，极大地提高了生产加工效率。The present invention provides a new type of biopsy forceps. The pliers head assembly is composed of an integrated pliers head 1, a needle-point pull rod pin 5 or a flat-head pull rod pin 2, a pull rod tube 3, a pull rod positioning block 4 and a clamp head base 10. The advantages are simple assembly and low cost. Compared with the various clamp head components currently used, it saves the connecting rod parts, simplifies the assembly process such as rivet welding, and greatly improves the production and processing efficiency.
综上所述，本发明所提供的具有一体式钳头的活检钳，通过将一体式钳头、拉杆销钉、拉杆管组装钳头套件；并将钳头套件、拉杆定位块及钳头座，组装钳头组件；然后将钳头组件和拉索、弹簧管和控制手柄组装成整个活检钳；简化了活检钳的结构及组装工艺。In summary, the biopsy forceps with integrated clamp heads provided by the present invention are assembled by assembling the clamp head kit with the integrated clamp head, the tie rod pin, and the tie rod tube; and the forceps kit, tie rod positioning block and clamp head base are assembled, Assemble the forceps head assembly; then assemble the forceps head assembly, the cable, the spring tube and the control handle into the entire biopsy forceps; the structure and assembly process of the biopsy forceps are simplified.
以上对本发明所提供的具有一体式钳头的活检钳及其制造方法进行了详细的说明。对本领域的一般技术人员而言，在不背离本发明实质精神的前提下对它所做的任何显而易见的改动，都将构成对本发明专利权的侵犯，将承担相应的法律责任。The biopsy forceps with integrated forceps and the manufacturing method thereof provided by the present invention have been described in detail above. For those of ordinary skill in the art, any obvious changes made to the invention without departing from the essential spirit of the invention will constitute an infringement of the patent right of the invention and will bear corresponding legal liabilities.

Claims (10)

  1. 一种具有一体式钳头的活检钳，其特征在于包括一体式钳头，所述一体式钳头包括一体成型的左钳头、右钳头和用于连接所述左钳头和所述右钳头的钳柄，所述钳柄对折设置，在所述钳柄的中部设置有中心孔；设置在所述钳柄两端的所述左钳头和所述右钳头具有弹性，并被定型为向相反方向张开的初始状态。A biopsy forceps with an integrated clamp head, which is characterized in that it includes an integrated clamp head, the integrated clamp head includes an integrated left clamp head, a right clamp head and used to connect the left clamp head and the right clamp head. The pliers handle of the pliers head, the pliers handle is folded in half, and a central hole is provided in the middle of the pliers handle; the left and right pliers heads arranged at both ends of the pliers handle have elasticity and are shaped It is the initial state of opening in the opposite direction.
  2. 如权利要求1所述的活检钳，其特征在于还包括拉杆销钉和拉杆管；The biopsy forceps according to claim 1, further comprising a tie rod pin and a tie rod tube;
    所述拉杆销钉的前端卡在中心孔前方，所述拉杆销钉***所述一体式钳头的中心孔后，与所述拉杆管插接并固定，组成钳头套件。The front end of the pull rod pin is stuck in front of the center hole, and after the pull rod pin is inserted into the center hole of the integrated clamp head, it is inserted and fixed with the pull rod tube to form a clamp head set.
  3. 如权利要求2所述的活检钳，其特征在于：The biopsy forceps according to claim 2, wherein:
    所述拉杆销钉是T形的平头拉杆销钉。The tie rod pin is a T-shaped flat head tie rod pin.
  4. 如权利要求2所述的活检钳，其特征在于：The biopsy forceps according to claim 2, wherein:
    所述拉杆销钉是前端具有取样针部的针尖拉杆销钉；所述针尖拉杆销钉的后端穿过中心孔后与所述拉杆管插接并固定；所述取样针部在所述左钳头和所述右钳头之间的样品存储槽内向前延伸。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 passes through the central hole and is inserted and fixed with the pull rod tube; the sampling needle part is connected to the left jaw and The sample storage slot between the right jaws extends forward.
  5. 如权利要求4所述的活检钳，其特征在于：The biopsy forceps according to claim 4, wherein:
    在所述取样针部的前端形成有向外侧突出的凸起。A protrusion protruding outward is formed at the tip of the sampling needle.
  6. 如权利要求2所述的活检钳，其特征在于还包括钳头座和拉杆定位块；其中，钳头座是两端具有盲孔、中部设置封堵的套筒，并且封堵中设置有穿透两个盲孔区域的连接孔；The biopsy forceps according to claim 2, further comprising a forceps head base and a tie rod positioning block; wherein the forceps head base is a sleeve with blind holes at both ends and a plugging in the middle, and a through hole is provided in the plugging. Connecting holes through the two blind hole areas;
    所述钳头套件中的拉杆管穿过连接孔向后延伸，所述左钳头和右钳头被限制在钳头座前端的盲孔中；The pull rod tube in the clamp head kit extends backward through the connecting hole, and the left clamp head and the right clamp head are restricted in the blind hole at the front end of the clamp head seat;
    所述拉杆定位块是固定在所述拉杆管外壁上的圆管，所述拉杆定位块被限定在所述钳头座后端的盲孔中，用于限定所述钳头套件向前推动的最大位置。The pull rod positioning block is a round tube fixed on the outer wall of the pull rod tube, and the pull rod positioning block is defined in the blind hole at the rear end of the clamp head seat for limiting the maximum forward push of the clamp head set position.
  7. 一种具有一体式钳头的活检钳的制造方法，其特征在于包括如下制造一体式钳头的步骤：A method for manufacturing a biopsy forceps with an integrated forceps head is characterized by including the following steps of manufacturing an integrated forceps head:
    (1)冲压裁出所述一体式钳头的外形轮廓，并冲压出钳头的两个减压孔和位于中心位置的中心孔；(1) Punching out the contour of the integrated clamp head, and punching out the two pressure relief holes of the clamp head and the center hole at the center;
    (2)通过冲压拉伸成型在所述一体式钳头的两端得到两个勺杯；(2) Two spoon cups are obtained at both ends of the integrated clamp head by stamping, drawing and forming;
    (3)通过冲压加工折出所述一体式钳头的整体形状；(3) Fold out the overall shape of the integrated clamp head by stamping;
    (4)通过热处理加工获得所述一体式钳头的硬度和机械强度。(4) Obtain the hardness and mechanical strength of the integrated clamp head through heat treatment.
  8. 如权利要求7所述的制造方法，其特征在于还包括如下组装钳头套件的步骤：将拉杆销钉从所述中心孔中穿过后，与拉杆管插接并固定，组成钳头套件。7. The manufacturing method according to claim 7, further comprising the step of assembling the pliers head kit: inserting and fixing the tie rod pin through the center hole to form the pliers head kit.
  9. 如权利要求8所述的制造方法，其特征在于：The manufacturing method of claim 8, wherein:
    当组装无针活检钳时，使用的拉杆销钉是T形的平头拉杆销钉；When assembling the needle-free biopsy forceps, the tie rod pins used are T-shaped flat-head tie rod pins;
    当组装有针活检钳时，使用的拉杆销钉是前端具有取样针部的针尖拉杆销钉。When the needle biopsy forceps are assembled, the tie rod pin used is a needle tip tie rod pin with a sampling needle at the front end.
  10. 如权利要求8所述的制造方法，其特征在于还包括如下组装钳头组件的步骤：将所述钳头套件装入钳头座，所述一体式钳头被限制在所述钳头座前端的盲孔区域内；所述拉杆管穿过连接孔后***所述钳头座后端的盲孔区域内，并在所述拉杆管后端的外壁上设置拉杆定位块，用于限定所述钳头套件向前推动的最大距离。The manufacturing method of claim 8, further comprising the step of assembling the pliers head assembly: installing the pliers head assembly into the pliers head base, and the integrated pliers head is restricted to the front end of the pliers head base The tie rod tube is inserted into the blind hole area at the rear end of the clamp head seat after passing through the connecting hole, and a tie rod positioning block is provided on the outer wall of the rear end of the tie rod tube to define the clamp head The maximum distance the kit can be pushed forward.
PCT/CN2019/111262 2019-01-22 2019-10-15 Biopsy forceps with integrated forceps head and manufacturing method therefor WO2020151267A1 (en)

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CN201920104945.6 2019-01-22
CN201920104945.6U CN209751116U (en) 2019-01-22 2019-01-22 Biopsy forceps with integrated forceps head
CN201910059505.8 2019-01-22
CN201910059505.8A CN109620311A (en) 2019-01-22 2019-01-22 Biopsy forceps and its manufacturing method with integral type binding clip

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US7775989B2 (en) * 2003-09-03 2010-08-17 Granit Medical Innovations, Llc Needle biopsy forceps with integral sample ejector
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CN202277352U (en) * 2011-09-19 2012-06-20 常州市久虹医疗器械有限公司 Forceps head component of needle biopsy forceps
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CN204600545U (en) * 2014-12-11 2015-09-02 南京微创医学科技有限公司 A kind of integral type binding clip sample pickup tongs
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CN208274598U (en) * 2017-07-20 2018-12-25 湖南瀚德微创医疗科技有限公司 A kind of Minimally Invasive Surgery pincers
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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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7775989B2 (en) * 2003-09-03 2010-08-17 Granit Medical Innovations, Llc Needle biopsy forceps with integral sample ejector
CN101836881A (en) * 2010-04-26 2010-09-22 南京思维斯精密机械制造有限公司 Sleeve structured medical in vivo minimally-invasive object-catching forceps
CN202277352U (en) * 2011-09-19 2012-06-20 常州市久虹医疗器械有限公司 Forceps head component of needle biopsy forceps
CN204600545U (en) * 2014-12-11 2015-09-02 南京微创医学科技有限公司 A kind of integral type binding clip sample pickup tongs
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