CN113349870A

CN113349870A - Turning forceps for operation

Info

Publication number: CN113349870A
Application number: CN202010301405.4A
Authority: CN
Inventors: 马猛
Original assignee: Medley Suzhou Medical Technology Co ltd
Current assignee: Medley Suzhou Medical Technology Co ltd
Priority date: 2020-03-05
Filing date: 2020-04-16
Publication date: 2021-09-07

Abstract

The invention discloses a pair of turning forceps for an operation, which comprises a fixed handle, a movable handle, a bracket, a pull rod core and a chuck consisting of a first clamping part and a second clamping part, wherein the upper parts of the fixed handle and the movable handle are connected through a first rotating shaft, so that the movable handle can rotate around the rotating shaft, one ends of the first clamping part and the second clamping part, which are close to the movable handle, are respectively connected through a second rotating shaft, so that the first clamping part and the second clamping part can rotate around the second rotating shaft, the opening and the clamping of the chuck are realized, one end of the bracket is embedded into the fixed handle and is fixedly connected with the fixed handle, a through hole is formed in the end surface of the bracket, the pull rod core penetrates through the through hole of the bracket, one end of the pull rod core is relatively and fixedly connected with the movable handle, and the other end of the pull rod core is used for being connected with the chuck. The rotary motion driven by the shaft sleeve and the rotary motion driven by the rotating wheel can be separated, so that the mutual interference between the shaft sleeve and the rotary motion driven by the rotating wheel is avoided, and the clamp body has higher rotation precision and better use experience.

Description

Turning forceps for operation

Technical Field

The invention relates to a pair of turning forceps for operation, belonging to the technical field of medical instruments.

Background

Clip appliers are a common medical device generally used in needle-holding suture procedures for clamping blood vessels to stop bleeding, and are sometimes referred to as hemostats. In medical operation, especially in minimally invasive technology, when a patient bleeds, after taking a hemostatic, the hemostatic clamps are used for clamping the vascular aorta so as not to allow blood to flow out.

The clip applier is used for clamping the macromolecule ligation clip on human tissues. The jaw component of the clip applier is fixed at the front end of the shell, and the handle is pressed to control the jaw of the clip applier to be closed. The existing products on the market have the defects that the clip applier is linear and cannot turn, so that the clip applier cannot be used for clamping a dorsal bleeding point.

Disclosure of Invention

The invention aims to provide a pair of surgical turning forceps, which can separate the rotary motion driven by a shaft sleeve from the rotary motion driven by a rotating wheel, so as to avoid mutual interference between the rotary motion and the rotary motion, and ensure that each rotary precision of the forceps body is higher and the use experience is better.

In order to achieve the purpose, the invention adopts the technical scheme that: a pair of surgical turning forceps comprises a fixed handle, a movable handle, a bracket, a pull rod core and a chuck composed of a first clamping part and a second clamping part, wherein the upper parts of the fixed handle and the movable handle are connected through a first rotating shaft, so that the movable handle can rotate around the rotating shaft, one ends of the first clamping part and the second clamping part, which are close to the movable handle, are respectively connected through a second rotating shaft, so that the first clamping part and the second clamping part can rotate around the second rotating shaft, the opening and clamping of the chuck are realized, one end of the bracket is embedded into the fixed handle and is fixedly connected with the fixed handle, a through hole is formed in the end surface of the bracket, the pull rod core penetrates through the through hole of the bracket, one end of the pull rod core is relatively and fixedly connected with the movable handle, and the other end of the pull rod core is used for being connected with the chuck;

the first clamping part and the second clamping part are respectively provided with a strip-shaped through hole which is obliquely arranged, the strip-shaped through hole is positioned at one side of the second rotating shaft close to the movable handle, the two strip-shaped through holes on the first clamping part and the second clamping part are arranged in a crossed manner, one end of the pull rod core, which is back to the movable handle, is embedded between the first clamping part and the second clamping part, one end of the pull rod core, which is back to the movable handle, is provided with a circular through hole, and a first movable shaft sequentially penetrates through the strip-shaped through hole on the first clamping part, the circular through hole on the pull rod core and the strip-shaped through hole on the second clamping part to connect the pull rod core with the chuck;

the pull rod core is provided with an outer flange in the area positioned in the bracket, a spring is sleeved on the pull rod core and positioned in the bracket, one end of the spring is in abutting contact with the end surface of the outer flange on the pull rod core, and the other end of the spring is in abutting contact with one end surface in the fixed handle;

the pull rod core is sleeved with a pull sleeve which is movably arranged in the bracket, a screw core with external threads is sleeved outside the bracket, the screw core can move along the axial direction of the bracket, a rivet sequentially rotates through the screw core and the bracket and is relatively fixedly connected with the pull sleeve arranged in the bracket, so that the pull sleeve can move along the axial direction of the bracket along with the screw core, the screw sleeve with internal threads is connected with the external threads of the screw core, a strip-shaped groove is formed in the outer surface of the bracket and arranged along the axial direction, a strip-shaped lug corresponding to the strip-shaped groove is arranged on the inner wall of the screw core, and the strip-shaped lug of the screw core is embedded into the strip-shaped groove in the bracket and can move in the strip-shaped groove;

one end of the pull sleeve, back to the movable handle, is connected with a pull tube, the pull tube is positioned outside the pull rod core, the outer tube is sleeved outside the pull tube, one end of the pull tube is fixedly connected with the pull sleeve, the other end of the pull tube is connected with a turning joint through a pull chain link, two ends of the pull chain link are respectively and fixedly connected with the pull tube and the turning joint, the turning joint further comprises an external connection part connected with the chuck and a rotating part connected with the zipper joint, one side of the rotating part is connected with the zipper joint, and the other side of the rotating part is connected with the end part of the outer tube through a third rotating shaft, so that the rotating part can rotate to one side close to the pull chain link around the third rotating shaft;

one end of the outer tube is embedded into the bracket and is connected with the bracket through a bearing, the inner ring of the bearing is tightly matched with the outer tube, the outer ring of the bearing is tightly matched with the bracket, a rotating wheel is sleeved outside the bracket and is in clearance fit with the outer surface of the bracket, one side of the rotating wheel, which is opposite to the bracket, is provided with an outer convex part, and a pin passes through the outer convex part of the rotating wheel and is embedded into a shallow groove formed in the outer wall of the outer tube;

the pull sleeve is provided with an annular groove arranged along the circumferential direction, the rivet sequentially penetrates through the screw core and the bracket and is embedded into the annular groove in the pull sleeve, and the rivet can move in the annular groove along the circumferential direction.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the top surface of the pin is provided with a through hole, the shallow groove is a through groove communicated with the through hole of the pin, and the pull tube arranged in the outer tube is provided with a through hole corresponding to the shallow groove.

2. In the above scheme, the pin is in threaded connection with the external convex part.

3. In the above scheme, the first clamping portion and the second clamping portion each further include a clamping area, a hinge area, and a driving area.

4. In the above aspect, the clamping areas of the first clamping portion and the second clamping portion are arranged to face each other in the horizontal direction, and the hinge area and the driving area of the first clamping portion and the second clamping portion are arranged to face each other in the vertical direction.

5. In the above scheme, the strip-shaped through hole is formed in the driving area, the second rotating shaft is connected to the hinge area, and the clamping area is located on one side, opposite to the driving area, of the hinge area.

6. In the above scheme, the inner surface of the strip-shaped through hole, which is in contact with the first movable shaft, is an arc-shaped surface.

7. In the above scheme, the pull rod core further comprises a head part connected with the movable handle, a pull piece part connected with the first clamping part and the second clamping part, and a connecting part for connecting the head part and the pull piece part.

8. In the above scheme, the pull sleeve is provided with a groove for embedding the rivet.

9. In the above scheme, the external connecting part of the elbow joint is provided with a through groove, and one end of each of the first clamping part and the second clamping part, which is close to the movable handle, is embedded into the through groove of the external connecting part and is connected with the external connecting part through the second rotating shaft.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. the invention relates to a pair of turning forceps for operation, wherein a first clamping part and a second clamping part are respectively provided with a strip-shaped through hole which is obliquely arranged, the strip-shaped through hole is positioned at one side of a second rotating shaft close to a movable handle, the two strip-shaped through holes on the first clamping part and the second clamping part are arranged in a crossed way, one end of a pull rod core, which is opposite to the movable handle, is embedded between the first clamping part and the second clamping part, one end of the pull rod core, which is opposite to the movable handle, is provided with a round through hole, a first movable shaft sequentially penetrates through the strip-shaped through hole on the first clamping part, the round through hole on the pull rod core and the strip-shaped through hole on the second clamping part to connect the pull rod core and a chuck, the strip-shaped through holes which are arranged in a crossed way are matched with the pull rod core and the second rotating shaft, the pull rod core is driven to move by rotating the movable handle, the pull rod core further drives the first movable shaft in the strip-shaped through hole to realize the opening and closing of the two clamping parts of the chuck, thereby realizing the clamping of the ligation clip, playing a role in the closed hemostasis of blood vessels, having exquisite structure and simple operation, and ensuring the smooth and safe operation; in addition, the pull rod core adopts a split structure design, so that the pull rod core is convenient to process and assemble, the cost is saved, local parts which are easy to wear are convenient to replace, and the processing and production efficiency is improved.

2. The invention discloses a pair of turning forceps for operation, wherein an outer flange is arranged on an area of a pull rod core in a bracket, a spring is sleeved on the pull rod core and is positioned in the bracket, one end of the spring is in abutting contact with the end surface of the outer flange on the pull rod core, the other end of the spring is in abutting contact with one end surface in a fixed handle, and through the arrangement of the spring, a movable handle keeps an open state when being in a natural state without external force, and a chuck is also in an open state so as to ensure the safety in use in the operation; in addition, one end of the outer pipe is embedded into the bracket and connected with the bracket through a bearing, the inner ring of the bearing is tightly matched with the outer pipe, the outer ring of the bearing is tightly matched with the bracket, and the annular groove is arranged to separate the rotary motion driven by the shaft sleeve from the rotary motion driven by the rotating wheel and avoid mutual interference between the rotary motion and the bracket, so that the clamp body has higher rotation precision and better use experience.

3. The turning forceps for the operation convert the rotary motion of the screw sleeve into the motion of the screw core driving the pulling sleeve in the axial direction, then the pulling sleeve drives the pulling tube, the pulling tube drives the turning joint to generate displacement, and further the turning joint and the outer tube are eccentrically and rotatably connected, so that the turning joint drives the chuck to rotate, the chuck is enabled to rotate in the operation process, the clamping of more parts is realized, the purposes and the connotation of the forceps body are enriched, and the operation flow of the operation is optimized.

4. According to the turning forceps for the operation, the rotating wheel and the pin are matched with the shallow grooves, the rotating wheel, the pin and the outer pipe are connected into a whole, the outer pipe is driven to rotate through the rotating wheel, so that the turning joint connected with the outer pipe is driven to rotate for 360 degrees, and the clamping of the ligation clamp in any direction can be further realized by matching with the turning design of the turning joint, so that the purposes and the connotation of the forceps body are enriched, and the operation flow of the operation is optimized; due to the arrangement of the bearing, the appearance can rotate more smoothly in the bracket without shaking or shaking, the use safety of the pliers body is improved, and the use experience of a user is improved.

Drawings

FIG. 1 is a schematic structural view of a turning clamp for operation according to the present invention;

FIG. 2 is an exploded view of the clamp head of the turning clamp for operation of the present invention;

FIG. 3 is a partial structural cross-sectional view in one direction of the turning forceps for surgery according to the present invention;

FIG. 4 is a partial structural cross-sectional view in another direction of the turning forceps for surgery according to the present invention;

FIG. 5 is a schematic view of a partial structure of the turning forceps for operation according to the present invention;

FIG. 6 is a partial structural sectional view of the turning forceps for surgery of the present invention;

FIG. 7 is a partially exploded view of the present invention of a turning clamp for surgery;

FIG. 8 is a partially exploded view of the present invention of a turning clamp for surgery.

In the above drawings: 1. fixing a handle; 2. a movable handle; 3. a bracket; 4. a pull rod core; 401. a head portion; 402. a connecting portion; 403. a tab portion; 51. a first clamping portion; 52. a second clamping portion; 501. a clamping area; 502. a hinge area; 503. a drive region; 6. a first rotating shaft; 7. a second rotating shaft; 8. a strip-shaped through hole; 9. a first movable shaft; 10. an outer flange; 11. a spring; 12. pulling the sleeve; 131. a screw core; 132. a threaded sleeve; 14. riveting; 15. a rotating wheel; 16. a strip-shaped groove; 17. a bar-shaped projection; 18. an outer tube; 19. pulling the tube; 20. pulling the chain link; 21. a bending section; 211. an external connection part; 212. a rotating part; 22. a third rotating shaft; 23. a bearing; 24. a rotating wheel; 241. an outer convex portion; 25. a pin; 26. shallow-groove; 27. an annular groove.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: a pair of surgical bending forceps comprises a fixed handle 1, a movable handle 2, a bracket 3, a pull rod core 4 and a chuck composed of a first clamping part 51 and a second clamping part 52, the upper parts of the fixed handle 1 and the movable handle 2 are connected through a first rotating shaft 6, so that the movable handle 2 can rotate around the rotating shaft 6, one end of each of the first clamping part 51 and the second clamping part 52 close to the movable handle 2 is connected through a second rotating shaft 7, so that the first clamping part 51 and the second clamping part 52 can rotate around the second rotating shaft 7, the opening and the clamping of the chuck are realized, one end of the bracket 3 is embedded into the fixed handle 1 and is fixedly connected with the fixed handle 1, a through hole is arranged on the end surface of the bracket 3, the pull rod core 4 passes through the through hole of the bracket 3, one end of the pull rod core 4 is relatively and fixedly connected with the movable handle 2, and the other end of the pull rod core 4 is used for being connected with the chuck;

the first clamping part 51 and the second clamping part 52 are respectively provided with a strip-shaped through hole 8 which is obliquely arranged, the strip-shaped through hole 8 is positioned at one side of the second rotating shaft 7, which is close to the movable handle 2, the two strip-shaped through holes 8 on the first clamping part 51 and the second clamping part 52 are arranged in a crossed manner, one end, opposite to the movable handle 2, of the pull rod core 4 is embedded between the first clamping part 51 and the second clamping part 52, one end, opposite to the movable handle 2, of the pull rod core 4 is provided with a circular through hole, a first movable shaft 9 sequentially penetrates through the strip-shaped through hole 8 on the first clamping part 51, the circular through hole on the pull rod core 4 and the strip-shaped through hole 8 on the second clamping part 52, and the pull rod core 4 is connected with the chuck;

an outer flange 10 is arranged on the area of the pull rod core 4 positioned in the bracket 3, a spring 11 is sleeved on the pull rod core 4 and positioned in the bracket 3, one end of the spring 11 is in pressing contact with the end surface of the outer flange 10 on the pull rod core 4, and the other end of the spring 11 is in pressing contact with one end surface in the fixed handle 1;

the pull rod core 4 is sleeved with a pull sleeve 12, the pull sleeve 12 is movably arranged in the bracket 3, a screw core 131 with external threads is sleeved outside the bracket 3, the screw core 131 can move along the axial direction of the bracket 3, a rivet 14 sequentially passes through the screw core 131 and the bracket 3 and is fixedly connected with the pull sleeve 12 arranged in the bracket 3 relatively, so that the pull sleeve 12 can move along the axial direction of the bracket 3 along with the screw core 131, the screw sleeve 132 with internal threads is connected with the external threads of the screw core 131 through threads, a strip-shaped groove 16 arranged along the axial direction is formed in the outer surface of the bracket 3, a strip-shaped convex block 17 corresponding to the strip-shaped groove 16 is arranged on the inner wall of the screw core 131, and the strip-shaped convex block 17 of the screw core 131 is embedded in the strip-shaped groove 16 on the bracket 3 and can move in the strip-shaped groove 16;

one end of the pull sleeve 12, which is opposite to the movable handle 2, is connected with a pull tube 19, the pull tube 19 is located outside the pull rod core 4, an outer tube 18 is further sleeved outside the pull tube 19, one end of the pull tube 19 is fixedly connected with the pull sleeve 12, the other end of the pull tube 19 is connected with a bent joint 21 through a pull chain link 20, two ends of the pull chain link 20 are respectively fixedly connected with the pull tube 19 and the bent joint 21, the bent joint 21 further comprises an external connection part 211 connected with the chuck and a rotation part 212 connected with the zipper joint 20, one side of the rotation part 212 is connected with the zipper joint 20, and the other side of the rotation part 212 is connected with the end part of the outer tube 18 through a third rotating shaft 22, so that the rotation part 212 can rotate around the third rotating shaft 22 to one side close to the pull chain link 20;

one end of the outer tube 18 is embedded into the bracket 3 and is connected with the bracket 3 through a bearing 23, the inner ring of the bearing 23 is tightly matched with the outer tube 18, the outer ring of the bearing 23 is tightly matched with the bracket 3, the outer side of the bracket 3 is sleeved with a rotating wheel 24, the rotating wheel 24 is in clearance fit with the outer surface of the bracket 3, one side of the rotating wheel 24, which is opposite to the bracket 3, is provided with an outer convex part 241, and a pin 25 penetrates through the outer convex part 241 of the rotating wheel 24 and is embedded into a shallow groove 26 formed in the outer wall of the outer tube 18;

the pull sleeve 12 is provided with an annular groove 27 arranged along the circumferential direction, the rivet 14 sequentially penetrates through the screw core 131 and the bracket 3 and is embedded into the annular groove 27 on the pull sleeve 12, and the rivet 14 can move along the circumferential direction in the annular groove 27.

The top surface of the pin 25 is provided with a through hole, the shallow groove 26 is a through groove communicated with the through hole of the pin 25, and the pull tube 19 arranged in the outer tube 18 is provided with a through hole corresponding to the shallow groove 26, so that the pin simultaneously plays a role of a water injection port, and the cleaning of the clamp body is realized by injecting water; the pin 25 is screwed with the external convex part 241;

each of the first clamping portion 51 and the second clamping portion 52 further includes a clamping area 501, a hinge area 502 and a driving area 503; a holding area 501 of each of the first holding portion 51 and the second holding portion 52 is disposed to face each other in the horizontal direction, and a hinge area 502 and a driving area 503 of each of the first holding portion 51 and the second holding portion 52 are disposed to face each other in the vertical direction; the driving region 503 has the strip through hole 8, the hinge region 502 has the second shaft 7 connected thereto, and the clamping region 501 is located on a side of the hinge region 502 opposite to the driving region 503.

Example 2: a pair of surgical bending forceps comprises a fixed handle 1, a movable handle 2, a bracket 3, a pull rod core 4 and a chuck composed of a first clamping part 51 and a second clamping part 52, the upper parts of the fixed handle 1 and the movable handle 2 are connected through a first rotating shaft 6, so that the movable handle 2 can rotate around the rotating shaft 6, one end of each of the first clamping part 51 and the second clamping part 52 close to the movable handle 2 is connected through a second rotating shaft 7, so that the first clamping part 51 and the second clamping part 52 can rotate around the second rotating shaft 7, the opening and the clamping of the chuck are realized, one end of the bracket 3 is embedded into the fixed handle 1 and is fixedly connected with the fixed handle 1, a through hole is arranged on the end surface of the bracket 3, the pull rod core 4 passes through the through hole of the bracket 3, one end of the pull rod core 4 is relatively and fixedly connected with the movable handle 2, and the other end of the pull rod core 4 is used for being connected with the chuck;

The inner surface of the strip-shaped through hole 8, which is in contact with the first movable shaft 9, is an arc surface, and the radian of the arc surface is set according to the motion track of the first movable shaft so as to be matched with the motion of the first movable shaft, so that the first movable shaft is smoother and has small damping in the motion process, and a chuck is ensured to have no swing when clamped, and the clamping force is more stable; the pull rod core 4 further comprises a head part 401 connected with the movable handle 2, a pull tab part 403 connected with the first clamping part 51 and the second clamping part 52, and a connecting part 402 connected with the head part 401 and the pull tab part 403;

the pull sleeve 12 is provided with a groove for the rivet 14 to be embedded in; the external connecting part 211 of the elbow joint 21 is provided with a through groove, and one end of each of the first clamping part 51 and the second clamping part 52 close to the movable handle 2 is embedded into the through groove of the external connecting part 211 and is connected with the external connecting part 211 through the second rotating shaft 7.

When the operation bending forceps are adopted, the cross-arranged strip-shaped through holes are matched with the pull rod core and the second rotating shaft, the movable handle is rotated to drive the pull rod core to move, the pull rod core further drives the first movable shaft in the strip-shaped through holes, and the two clamping parts of the clamping head are opened and closed, so that the ligation clamp is clamped, the closed hemostasis of blood vessels is realized, the structure is exquisite, the operation is simple, and the smooth and safe operation is ensured; in addition, the pull rod core adopts a split structure design, so that the processing and the assembly are convenient, the cost is saved, the local parts which are easy to wear are convenient to replace, and the processing and production efficiency is improved;

in addition, through the arrangement of the spring, the movable handle keeps an opening state when being in a natural state without external force, and meanwhile, the chuck is also in an opening state, so that the safety in use in the operation is ensured;

in addition, the rotary motion of the screw sleeve is converted into the motion of the screw core driving the pull sleeve in the axial direction, the pull sleeve drives the pull tube, the pull tube drives the turning joint to generate displacement, and further, the turning joint and the outer tube are eccentrically arranged and rotatably connected, so that the turning joint drives the chuck to rotate, the chuck of the invention rotates in the operation process, the clamping of more parts is realized, the purposes and the connotation of the clamp body of the invention are enriched, and the operation flow of the operation is optimized;

in addition, the runner and the pin are matched with the shallow groove, the runner, the pin and the outer pipe are connected into a whole, the outer pipe is driven to rotate through the runner, so that a turning joint connected with the outer pipe is driven to rotate by 360 degrees, and the clamp of the ligation clamp in any direction can be further realized by matching with the turning design of the turning joint, so that the purposes and the connotation of the clamp body are enriched, and the operation flow of the operation is optimized; due to the arrangement of the bearing, the appearance can rotate more smoothly in the bracket without shaking or swaying, the use safety of the pliers body is improved, and the use experience of a user is improved;

in addition, the arrangement of the annular groove can separate the rotary motion driven by the shaft sleeve from the rotary motion driven by the rotating wheel, so that the mutual interference between the shaft sleeve and the rotating wheel is avoided, and the clamp body has higher rotation precision and better use experience.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a bending forceps for operation which characterized in that: comprises a fixed handle (1), a movable handle (2), a bracket (3), a pull rod core (4) and a chuck consisting of a first clamping part (51) and a second clamping part (52), wherein the upper parts of the fixed handle (1) and the movable handle (2) are connected through a first rotating shaft (6) so that the movable handle (2) can rotate around the rotating shaft (6), one ends of the first clamping part (51) and the second clamping part (52) close to the movable handle (2) are respectively connected through a second rotating shaft (7), so that the first clamping part (51) and the second clamping part (52) can rotate around the second rotating shaft (7) to realize the opening and clamping of the chuck, one end of the bracket (3) is embedded into the fixed handle (1) and fixedly connected with the fixed handle (1), a through hole is formed in the end surface of the bracket (3), and the pull rod core (4) passes through the through hole of the bracket (3), one end of the pull rod core (4) is relatively and fixedly connected with the movable handle (2), and the other end of the pull rod core (4) is used for being connected with the chuck;

the first clamping part (51) and the second clamping part (52) are respectively provided with a strip-shaped through hole (8) which is obliquely arranged, the strip-shaped through hole (8) is positioned at one side of the second rotating shaft (7) close to the movable handle (2), the two strip-shaped through holes (8) on the first clamping part (51) and the second clamping part (52) are arranged in a crossed manner, one end, back to the movable handle (2), of the pull rod core (4) is embedded between the first clamping part (51) and the second clamping part (52), one end, back to the movable handle (2), of the pull rod core (4) is provided with a circular through hole, and a first movable shaft (9) sequentially penetrates through the strip-shaped through hole (8) on the first clamping part (51), the circular through hole on the pull rod core (4) and the strip-shaped through hole (8) on the second clamping part (52) to connect the pull rod core (4) with the chuck;

the pull rod core (4) is provided with an outer flange (10) in the area positioned in the bracket (3), a spring (11) is sleeved on the pull rod core (4) and positioned in the bracket (3), one end of the spring (11) is in pressing contact with the end surface of the outer flange (10) on the pull rod core (4), and the other end of the spring (11) is in pressing contact with one end surface in the fixed handle (1);

a pull sleeve (12) is sleeved on the pull rod core (4), the pull sleeve (12) is movably arranged in the bracket (3), a screw core (131) with external threads is sleeved outside the bracket (3), the screw core (131) can move along the axial direction of the bracket (3), a rivet (14) sequentially rotates through the screw core (131) and the bracket (3), and is relatively fixedly connected with a pulling sleeve (12) arranged in the bracket (3) so that the pulling sleeve (12) can move along the axial direction of the bracket (3) along with the screw core (131), the external thread of the screw core (131) is connected with a screw sleeve (132) with internal thread, a strip-shaped groove (16) arranged along the axial direction is arranged on the outer surface of the bracket (3), the inner wall of the screw core (131) is provided with a strip-shaped convex block (17) corresponding to the strip-shaped groove (16), the strip-shaped convex block (17) of the screw core (131) is embedded into the strip-shaped groove (16) on the bracket (3) and can move in the strip-shaped groove (16);

one end of the pull sleeve (12) back to the movable handle (2) is connected with a pull tube (19), the pull tube (19) is positioned outside the pull rod core (4), an outer tube (18) is sleeved outside the pull tube (19), one end of the pull tube (19) is fixedly connected with the pull sleeve (12), the other end of the pull tube (19) is connected with a bent joint (21) through a pull chain link (20), two ends of the pull chain link (20) are respectively fixedly connected with the pull tube (19) and the turning joint (21), the elbow joint (21) further comprises an external connecting part (211) connected with the clamping head and a rotating part (212) connected with the pull chain link (20), one side of the rotating part (212) is connected with the zipper joint (20), the other side of the rotating part (212) is connected with the end part of the outer tube (18) through a third rotating shaft (22), so that the rotating part (212) can rotate around the third rotating shaft (22) to one side close to the pull chain link (20);

one end of the outer pipe (18) is embedded into the bracket (3) and is connected with the bracket (3) through a bearing (23), the inner ring of the bearing (23) is tightly matched with the outer pipe (18), the outer ring of the bearing (23) is tightly matched with the bracket (3), a rotating wheel (24) is sleeved on the outer side of the bracket (3), the rotating wheel (24) is in clearance fit with the outer surface of the bracket (3), one side of the rotating wheel (24), which is back to the bracket (3), is provided with an outer convex part (241), and a pin (25) penetrates through the outer convex part (241) of the rotating wheel (24) and is embedded into a shallow groove (26) formed in the outer wall of the outer pipe (18);

draw set (12) to go up to open and to have an annular groove (27) that sets up along circumference, rivet (14) pass screw core (131) and bracket (3) in proper order to in embedding annular groove (27) on drawing set (12), rivet (14) can be in annular groove (27) along the circumferential motion.

2. The surgical turning forceps according to claim 1, characterized in that: the top surface of the pin (25) is provided with a through hole, the shallow groove (26) is a through groove communicated with the through hole of the pin (25), and the pull tube (19) arranged in the outer tube (18) is provided with a through hole corresponding to the shallow groove (26).

3. The surgical turning forceps according to claim 1, characterized in that: the pin (25) is in threaded connection with the outer convex part (241).

4. The surgical turning forceps according to claim 1, characterized in that: the first clamping portion (51) and the second clamping portion (52) each further comprise a clamping area (501), a hinge area (502) and a drive area (503).

5. The surgical bending forceps according to claim 4, wherein: the clamping areas (501) of the first clamping part (51) and the second clamping part (52) are arranged in a face-to-face mode in the horizontal direction, and the hinge area (502) and the driving area (503) of the first clamping part (51) and the second clamping part (52) are arranged in a face-to-face mode in the vertical direction.

6. The surgical turning forceps according to claim 4 or 5, characterized in that: the driving area (503) is provided with the strip-shaped through hole (8), the hinge area (502) is connected with the second rotating shaft (7), and the clamping area (501) is located on one side, opposite to the driving area (503), of the hinge area (502).

7. The surgical turning forceps according to claim 1, characterized in that: the inner surface of the strip-shaped through hole (8) in contact with the first movable shaft (9) is an arc-shaped surface.

8. The surgical turning forceps according to claim 1, characterized in that: the pull rod core (4) further comprises a head part (401) connected with the movable handle (2), a pull piece part (403) connected with the first clamping part (51) and the second clamping part (52), and a connecting part (402) connected with the head part (401) and the pull piece part (403).

9. The surgical turning forceps according to claim 1, characterized in that: the pull sleeve (12) is provided with a groove for the rivet (14) to be embedded in.

10. The surgical turning forceps according to claim 1, characterized in that: a through groove is formed in an external connecting portion (211) of the elbow joint (21), one end, close to the movable handle (2), of each of the first clamping portion (51) and the second clamping portion (52) is embedded into the through groove of the external connecting portion (211), and the first clamping portion and the second clamping portion are connected with the external connecting portion (211) through the second rotating shaft (7).