Biopsy forceps with adjustable angle

Abstract

The angle-adjustable biopsy forceps comprise a forceps rod, a fixed handle is formed at one end of the forceps rod, a movable handle is hinged to the bottom of the end, close to the fixed handle, of the forceps rod, a movable seat is hinged to the end, away from the fixed handle, of the forceps rod, two forceps clips are arranged on the movable seat, and the two forceps clips are connected through a first connecting rod. The two first connecting rods are hinged to the inner side of the movable seat in a shear fork mode, second connecting rods are hinged to the ends, away from the forceps clip, of the two first connecting rods, the ends, away from the forceps clip, of the two second connecting rods are hinged to one end of the push-pull rod, and a traction mechanism used for pulling the push-pull rod to move is arranged in the forceps rod; an angle adjusting mechanism used for adjusting the angle of the forceps holder is arranged in the forceps rod. The angle of the forceps holder can be adjusted through the arranged angle adjusting mechanism, operation positions at different angles can be sampled, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biopsy forceps, in particular to a biopsy forceps with adjustable angles. Background Art

[0002] A Chinese patent with announcement number CN202723890U discloses a biopsy forceps, comprising a clamp rod portion consisting of a first clamp rod and a second clamp rod that can translate relative to each other, the clamp rod portion having a proximal end and a distal end; a clamp portion located at the distal end of the clamp rod portion, the clamp portion consisting of a first clamp and a second clamp that match each other; the first clamp or the second clamp is hinged on the corresponding clamp rod and opens or closes with the movement of the clamp rod, and a scale is provided on the first clamp rod or the second clamp rod.

[0003] When using the above-mentioned biopsy forceps to obtain pathological biopsy tissue, the doctor is limited by the working space. At the same time, due to the different positions and angles of the pathological tissue, it is difficult for the doctor to operate the biopsy forceps and cannot accurately align the forceps head with the position of the pathological tissue.

[0004] For this reason, we propose a biopsy forceps with adjustable angle. Utility Model Content

[0005] The purpose of the utility model is to provide a biopsy forceps with adjustable angle, so as to solve or at least alleviate one or more of the above problems and other problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A biopsy forceps with adjustable angle comprises a forceps rod, one end of which is formed with a fixed handle, a movable handle is hinged at the bottom of the end of the forceps rod close to the fixed handle, and the end of the forceps rod away from the fixed handle is hinged to a movable seat, and two forceps are arranged on the movable seat, and the two forceps are hinged to the inner side of the movable seat in a scissors-fork manner through a first connecting rod, and the ends of the two first connecting rods away from the forceps are hinged to a second connecting rod, and the ends of the two second connecting rods away from the forceps are hinged to one end of a push-pull rod, a pulling mechanism for pulling the push-pull rod to move is arranged inside the forceps rod, and an angle adjustment mechanism for adjusting the angle of the forceps is arranged inside the forceps rod.

[0008] In an angle-adjustable biopsy forceps according to the utility model, the pulling mechanism includes a steel wire rope, a first through hole is opened on the movable seat, the push-pull rod is slidably inserted in the first through hole, one end of the steel wire rope is fixedly connected to one end of the push-pull rod, the end of the clamp rod near the fixed handle is fixedly connected to a tensioning rod, the upper end of the movable handle is extended into the interior of the clamp rod and then fixedly connected to a connecting seat, and the end of the steel wire rope away from the clamp passes around the tensioning rod and is fixedly connected to the top of the connecting seat.

[0009] In an angle-adjustable biopsy forceps according to the utility model, one end of the steel wire rope close to the clamp is fixedly connected to a block, the inside of the clamp rod is fixedly connected to a baffle, and a spring is sleeved on the steel wire rope, one end of the spring close to the clamp abuts against one side of the block, and one end of the spring away from the clamp abuts against one side of the baffle.

[0010] In an angle-adjustable biopsy forceps according to the utility model, the angle adjustment mechanism includes a worm and a worm wheel, the worm wheel is fixedly connected to one end of the movable seat, the worm wheel is rotatably connected to the inner wall of one end of the clamp rod, the worm is rotatably arranged inside the clamp rod, the worm is meshed with the worm wheel, one end of the worm is fixedly connected to a steel rod, and the end of the steel rod away from the worm is rotatably passed through the clamp rod near the fixed handle.

[0011] In the angle-adjustable biopsy forceps according to the utility model, one end of the steel rod is fixedly connected with a rotating handle.

[0012] In an angle-adjustable biopsy forceps according to the utility model, a first elastic sheet is fixedly connected to the inner side of the fixed handle, a second elastic sheet is fixedly connected to the inner side of the movable handle, and the movable end of the first elastic sheet abuts against the movable end of the second elastic sheet.

[0013] In an angle-adjustable biopsy forceps according to the utility model, it also includes a puncture needle, the inner top of the forceps rod is fixedly connected to a guide channel, the end of the forceps rod close to the fixed handle is provided with a mounting hole, the mounting hole is connected to one end of the guide channel, and a second through hole is provided on the movable seat, and one end of the puncture needle passes through the mounting hole, the guide channel and the second through hole in sequence and then passes through between the two clamps.

[0014] The utility model has at least the following beneficial effects:

[0015] The utility model can adjust the clamping angle by means of the angle adjustment mechanism, and can sample surgical positions at different angles, thereby improving surgical efficiency.

[0016] The guide channel and the second through hole can be used to allow the puncture needle to extend from the clamp rod into the surgical site, quickly extract the accumulated fluid, and facilitate observation of the surgical site. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0021] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of part B in FIG.

[0022] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of part C;

[0023] Figure 6 for Figure 2 Schematic diagram of the enlarged structure of the D part;

[0024] Figure 7 It is a structural schematic diagram of the movable seat of the utility model.

[0025] Description of Figure Numbers:

[0026] 1. Clamp rod; 2. Fixed handle; 3. Movable handle; 301. Connecting seat; 4. Clamp; 401. First connecting rod; 402. Second connecting rod; 403. Push-pull rod; 404. Movable seat; 405. Worm gear; 406. First through hole; 407. Second through hole; 5. Worm; 501. Steel rod; 502. Rotating handle; 6. Steel wire rope; 601. Block; 602. Spring; 603. Baffle; 604. Tensioning rod; 7. Puncture needle; 8. First elastic sheet; 9. Second elastic sheet; 10. Guide channel. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] Please refer to Figures 1 to 7As shown, in the embodiment of the utility model,

[0029] A biopsy forceps with adjustable angle, comprising a forceps rod 1, one end of the forceps rod 1 is formed with a fixed handle 2, the bottom of the end of the forceps rod 1 close to the fixed handle 2 is hinged with a movable handle 3, the end of the forceps rod 1 away from the fixed handle 2 is hinged with a movable seat 404, and two clamps 4 are arranged on the movable seat 404, the two clamps 4 are hinged to the inner side of the movable seat 404 in a scissor-fork manner through a first connecting rod 401, the ends of the two first connecting rods 401 away from the clamps 4 are hinged with a second connecting rod 402, the ends of the two second connecting rods 402 away from the clamps 4 are hinged to one end of a push-pull rod 403, a pulling mechanism for pulling the push-pull rod 403 to move is arranged inside the forceps rod 1, and the pulling mechanism comprises a steel wire rope 6, a first through hole 406 is opened on the movable seat 404, and the push-pull rod 403 is slidably inserted into the first through hole 4 06, one end of the wire rope 6 is fixedly connected to one end of the push-pull rod 403, and the end of the clamp rod 1 near the fixed handle 2 is fixedly connected to the tensioning rod 604. The upper end of the movable handle 3 extends into the interior of the clamp rod 1 and is fixedly connected to the connecting seat 301. The end of the wire rope 6 away from the clamp 4 passes around the tensioning rod 604 and is fixedly connected to the top of the connecting seat 301. The interior of the clamp rod 1 is provided with an angle adjustment mechanism for adjusting the angle of the clamp 4. The angle adjustment mechanism includes a worm 5 and a worm wheel 405. The worm wheel 405 is fixedly connected to one end of the movable seat 404, and the worm wheel 405 is rotatably connected to the inner wall of one end of the clamp rod 1. The worm 5 is rotatably arranged inside the clamp rod 1, and the worm 5 is meshed with the worm wheel 405. One end of the worm 5 is fixedly connected to the steel rod 501, and the end of the steel rod 501 away from the worm 5 rotates and passes through the end of the clamp rod 1 near the fixed handle 2.

[0030] By adopting the above technical solution, when it is necessary to adjust the angle of the clamp 4, the steel rod 501 is rotated to drive the worm 5 to rotate, and the rotating worm 5 drives the worm wheel 405 meshing with it to rotate, so that the angle of the clamp 4 hinged on the movable seat 404 can be adjusted so that the clamp 4 is aligned with the surgical biopsy site, and then the movable handle 3 is squeezed in the direction of the fixed handle 2, and then the push-pull rod 403 is driven by the wire rope 6 to move in the direction of the clamp rod 1, so that the two clamps 4 are closed and the surgical sampling is completed, and then the steel rod 501 is selected to reset the clamp 4 to the initial position, so as to facilitate the removal of the clamp 4 from the wound site. During the resetting of the clamp 4, the fixed handle 2 cannot be loosened to prevent the clamp 4 from opening and causing the biopsy tissue to fall.

[0031] Specifically, in order to facilitate the rotation of the steel rod 501 , a rotating handle 502 is fixedly connected to one end of the steel rod 501 .

[0032] Specifically, in order to ensure that the clamp 4 can be automatically opened after the movable handle 3 is released, the end of the wire rope 6 close to the clamp 4 is fixedly connected to a block 601, the inside of the clamp rod 1 is fixedly connected to a baffle 603, and a spring 602 is sleeved on the wire rope 6, and the end of the spring 602 close to the clamp 4 abuts against one side of the block 601, and the end of the spring 602 away from the clamp 4 abuts against one side of the baffle 603. Through the above arrangement, when the movable handle 3 is released, the wire rope 6 is squeezed in the direction of the push-pull rod 403 under the elastic force of the spring 602, thereby opening the clamp 4.

[0033] Specifically, a first elastic sheet 8 is fixedly connected to the inner side of the fixed handle 2, and a second elastic sheet 9 is fixedly connected to the inner side of the movable handle 3. The movable end of the first elastic sheet 8 abuts against the movable end of the second elastic sheet 9. Through this arrangement, not only can the movable handle 3 be automatically reset after releasing the movable handle 3, but it can also further ensure that the clamp 4 can be automatically opened after releasing the movable handle 3.

[0034] Specifically, in this embodiment, a puncture needle 7 is also provided, and a guide channel 10 is fixedly connected to the inner top of the clamp rod 1. A mounting hole is provided at one end of the clamp rod 1 close to the fixed handle 2, and the mounting hole is communicated with one end of the guide channel 10. A second through hole 407 is provided on the movable seat 404. One end of the puncture needle 7 passes through the mounting hole, the guide channel 10 and the second through hole 407 in sequence and then passes out from between the two clamps 4. The guide channel 10 and the second through hole 407 can be used to allow the puncture needle 7 to extend from the clamp rod 1 into the surgical site, quickly extract the accumulated fluid, and facilitate observation of the surgical site.

[0035] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0036] Working principle: When in use, first extend the clamp rod 1 into the surgical site from the wound, then extend the puncture needle 7 from the clamp rod 1 into the surgical site to absorb the accumulated fluid, then take out the puncture needle 7, and then adjust the angle of the clamp 4 as needed so that the clamp 4 is aligned with the surgical biopsy site, then hold the movable handle 3 and squeeze it in the direction of the fixed handle 2, and then drive the push-pull rod 403 to move in the direction of the clamp rod 1 through the wire rope 6, so that the two clamps 4 are closed to complete the surgical sampling, and then select the steel rod 501 to reset the clamp 4 to the initial position, so as to facilitate the removal of the clamp 4 from the wound site. During the resetting of the clamp 4, the fixed handle 2 cannot be loosened to prevent the clamp 4 from opening and causing the biopsy tissue to fall.

[0037] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An angle-adjustable biopsy forceps, characterized in that: The invention comprises a clamp rod (1), one end of which is formed with a fixed handle (2), a movable handle (3) is hingedly connected at the bottom of the end of the clamp rod (1) close to the fixed handle (2), and an movable seat (404) is hingedly connected at the end of the clamp rod (1) away from the fixed handle (2), and two clamps (4) are arranged on the movable seat (404), and the two clamps (4) are hingedly connected to the first connecting rod (401) in a scissor-fork manner. On the inner side of the movable seat (404), the ends of the two first connecting rods (401) away from the clamp (4) are hinged to the second connecting rod (402), and the ends of the two second connecting rods (402) away from the clamp (4) are hinged to one end of the push-pull rod (403). A pulling mechanism for pulling the push-pull rod (403) to move is arranged inside the clamp rod (1), and an angle adjustment mechanism for adjusting the angle of the clamp (4) is arranged inside the clamp rod (1).

2. The angle-adjustable biopsy forceps according to claim 1, characterized in that: The pulling mechanism includes a steel wire rope (6), a first through hole (406) is provided on the movable seat (404), the push-pull rod (403) is slidably inserted into the first through hole (406), one end of the steel wire rope (6) is fixedly connected to one end of the push-pull rod (403), one end of the clamp rod (1) close to the fixed handle (2) is fixedly connected to a tensioning rod (604), the upper end of the movable handle (3) is extended into the interior of the clamp rod (1) and is fixedly connected to a connecting seat (301), and one end of the steel wire rope (6) away from the clamp (4) passes around the tensioning rod (604) and is fixedly connected to the top of the connecting seat (301).

3. The angle-adjustable biopsy forceps according to claim 2, characterized in that: The end of the steel wire rope (6) close to the clamp (4) is fixedly connected to a block (601), the interior of the clamp rod (1) is fixedly connected to a baffle (603), a spring (602) is sleeved on the steel wire rope (6), the end of the spring (602) close to the clamp (4) abuts against one side of the block (601), and the end of the spring (602) away from the clamp (4) abuts against one side of the baffle (603).

4. The angle-adjustable biopsy forceps according to claim 3, characterized in that: The angle adjustment mechanism comprises a worm (5) and a worm wheel (405), wherein the worm wheel (405) is fixedly connected to one end of the movable seat (404), and the worm wheel (405) is rotatably connected to the inner wall of one end of the clamp rod (1), and the worm (5) is rotatably arranged inside the clamp rod (1), and the worm (5) is meshed with the worm wheel (405), and one end of the worm (5) is fixedly connected to a steel rod (501), and the end of the steel rod (501) away from the worm (5) is rotatably passed through the end of the clamp rod (1) close to the fixed handle (2).

5. The angle-adjustable biopsy forceps according to claim 4, characterized in that: One end of the steel rod (501) is fixedly connected to a rotating handle (502).

6. The angle-adjustable biopsy forceps according to claim 1, characterized in that: A first elastic sheet (8) is fixedly connected to the inner side of the fixed handle (2), a second elastic sheet (9) is fixedly connected to the inner side of the movable handle (3), and the movable end of the first elastic sheet (8) abuts against the movable end of the second elastic sheet (9).

7. The angle-adjustable biopsy forceps according to claim 1, characterized in that: The invention also comprises a puncture needle (7), the inner top of the clamp rod (1) is fixedly connected with a guide channel (10), an end of the clamp rod (1) close to the fixed handle (2) is provided with a mounting hole, the mounting hole is communicated with one end of the guide channel (10), a second through hole (407) is provided on the movable seat (404), one end of the puncture needle (7) passes through the mounting hole, the guide channel (10) and the second through hole (407) in sequence, and then passes through between the two clamps (4).

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