Operating forceps

Abstract

The utility model relates to the technical field of medical instruments, in particular to operating forceps. The operating forceps comprise a tube body and a clamping assembly, the tube body comprises a mounting seat, the mounting seat is arranged at one end of the tube body, an opening is formed in the center of the mounting seat in the length direction of the tube body, and the opening is communicated with the internal space of the tube body; the clamping assembly comprises three clamping pieces and a connecting piece, the connecting piece is movably arranged in the pipe body in a penetrating mode, each clamping piece comprises a connecting part, a rotating part and a clamping part, and the connecting part is in transmission connection with the end, penetrating out of the opening, of the connecting piece; the rotating part is connected with the connecting part and the clamping part, and the rotating part is rotationally connected to the mounting seat; and when the connecting piece moves, each connecting part can be driven to drive the corresponding rotating part to rotate, so that the three clamping parts are opened or closed. When an object is clamped, the three clamping pieces of the clamping assembly can be opened or closed synchronously, so that clamping force is applied to the object more evenly, and unbalance or deflection in the clamping process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a pair of surgical forceps. Background Art

[0002] Three-jaw surgical forceps are a type of forceps used to clamp objects during surgery. Existing three-jaw surgical forceps include a double-headed fixed jaw and a movable jaw. When in use, the doctor controls the movable jaw to move relative to the double-headed fixed jaw so that the movable jaw can clamp and fix the object together with the double-headed fixed jaw.

[0003] However, when the above structure clamps irregularly shaped objects, the clamping method of the movable claws relative to the double-headed fixed claws easily causes the clamping force to be unevenly applied to the object, thereby causing the object to be skewed after clamping. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a surgical forceps to solve the problem of uneven clamping force of surgical forceps in the prior art and easy deflection of objects.

[0005] The surgical forceps provided in the embodiment of the utility model include:

[0006] A tube body, comprising a mounting seat, the mounting seat being arranged at one end of the tube body, the tube body being further provided with an opening communicating with the interior of the tube body, the opening being arranged in the length direction of the tube body and located at the center of the mounting seat;

[0007] A clamping assembly, comprising three clamping members and a connecting member, wherein the connecting member can be movably inserted into the tube body, and the three clamping members are arranged at equal intervals around the outside of the opening; the clamping member comprises a connecting portion, a rotating portion and a clamping portion, and the connecting portion is transmission-connected to an end of the connecting member passing through the opening; the rotating portion is respectively connected to the connecting portion and the clamping portion, and the rotating portion is rotationally connected to the mounting seat, and the rotating axis of the rotating portion is perpendicular to the length direction of the tube body;

[0008] When the connecting member moves, each connecting part can drive the corresponding rotating part to rotate, thereby opening or closing the three clamping parts.

[0009] In one embodiment, the connecting piece is provided with three universal ball mounting grooves; the surgical forceps also include a ball head piece, the ball head piece includes a sphere and a connecting rod, the sphere is rotatably connected to the corresponding universal ball mounting groove, one end of the connecting rod is connected to the sphere, and the other end is rotatably connected to the connecting part, and its rotation centerline is perpendicular to the length direction of the tube body.

[0010] In one embodiment, the mounting base includes three connecting ear groups, and the three connecting ear groups are arranged at equal intervals along the outer contour of the opening. The connecting ear group includes two connecting ears spaced apart in the extending direction of the outer contour of the opening. The rotating part is arranged between the two connecting ears and is rotatably connected to the two connecting ears respectively.

[0011] In one embodiment, the clamping part includes a clamping surface facing the center line of the pipe body, and the clamping surface extends in the length direction of the pipe body. When the three clamping parts are closed, the clamping surfaces of each clamping part abut against each other.

[0012] In one embodiment, a groove is provided on the clamping surface.

[0013] In one embodiment, a plurality of grooves are provided, and the plurality of grooves are arranged at equal intervals in the extending direction of the clamping surface.

[0014] In one embodiment, the clamping part includes a first side surface facing away from the center line of the pipe body. When the three clamping parts are closed, the first side surface has a tendency to approach the center line of the pipe body in the direction away from the pipe body.

[0015] In one embodiment, the clamping part includes a second side surface and a third side surface oppositely arranged in the direction of the rotation axis of the rotating part, and the distance between the second side surface and the third side surface gradually shortens in the direction approaching the center line of the pipe body.

[0016] In one embodiment, it further includes a trigger and a grip. The grip is arranged at the other end of the pipe body. The trigger is located on the side of the grip close to the clamping assembly. The trigger is spaced apart from the grip, and the trigger is rotatably connected to the pipe body and is in transmission connection with the connecting piece.

[0017] In one embodiment, it further includes a spring. The spring is installed in the pipe body and is connected to one of the trigger or the connecting piece. When the trigger rotates towards the grip, the spring is compressed to store energy.

[0018] Compared with the prior art, the beneficial effects of the surgical forceps provided by the embodiments of the present utility model are as follows: When clamping an object, the three clamping members of the clamping assembly can open or close synchronously, so as to apply the clamping force to the object more evenly and avoid imbalance or skew during the clamping process. Specifically, the doctor controls the connecting member in the tube body, so that the connecting member penetrates or retracts from the opening, and the connecting member can drive the connecting portion to move in the length direction of the tube body. Since the connecting portion is restricted by the rotating portion, the clamping member rotates along the rotation axis of the connecting portion, and then the three clamping portions swing. When clamping an object, the connecting member can simultaneously control the three clamping members to move synchronously to achieve closing. The object is more evenly stressed, and its position is not easily skewed after being clamped and fixed, and the clamping effect is better. Description of the Drawings

[0019] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the drawings. In the drawings:

[0020] Figure 1 is a schematic perspective view of the surgical forceps provided by the embodiments of the present utility model;

[0021] Figure 2 is a partially cut-away schematic view of the surgical forceps provided by the embodiments of the present utility model;

[0022] Figure 3 is a schematic view of the clamping assembly in the open state provided by the embodiments of the present utility model;

[0023] Figure 4 is a partially cut-away schematic view of the ball head, connecting portion and connecting member provided by the embodiments of the present utility model;

[0024] Figure 5 is a schematic view of the clamping assembly in the closed state provided by the embodiments of the present utility model;

[0025] Figure 6 is one of the schematic perspective views of the clamping member provided by the embodiments of the present utility model;

[0026] Figure 7 is the other schematic perspective view of the clamping member provided by the embodiments of the present utility model;

[0027] Figure 8 is a partially cut-away schematic view of the tube body and the trigger provided by the embodiments of the present utility model.

[0028] The reference numerals in the drawings are as follows:

[0029] 1000, surgical forceps;

[0030] 10, tube body; 11, mounting seat; 111, connecting ear group; 111a, connecting ear; 12, opening;

[0031] 20. Clamping assembly; 21. Clamping member; 211. Connecting portion; 212. Rotating portion; 213. Clamping portion; 213a. Clamping surface; 213b. Groove; 213c. First side surface; 213d. Second side surface; 213e. Third side surface; 214. Clamping space; 22. Connecting member; 221. Universal ball mounting groove

[0032] 30. Ball head member; 31. Sphere; 32. Connecting rod

[0033] 40. Trigger

[0034] 50. Grip

[0035] 60. Spring Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.

[0037] An embodiment of the present invention provides a surgical forceps 1000, as Figure 1 shown in Figure 2 The surgical forceps 1000 includes a tube body 10 and a clamping assembly 20. The tube body 10 includes a mounting seat 11, and the mounting seat 11 is disposed at one end of the tube body 10. Along the length direction of the tube body 10 (as shown by the X direction in Figure 1 ), an opening 12 is provided at the center of the mounting seat 11, and the opening 12 communicates with the internal space of the tube body 10; the clamping assembly 20 includes a connecting member 22 and three clamping members 21. The connecting member 22 is movably inserted into the tube body 10, and the three clamping members 21 are arranged at equal intervals around the outside of the opening 12; the clamping member 21 includes a connecting portion 211, a rotating portion 212 and a clamping portion 213. The connecting portion 211 is drivingly connected to one end of the connecting member 22 passing through the opening 12; the rotating portion 212 is respectively connected to the connecting portion 211 and the clamping portion 213, and the rotating portion 212 is rotatably connected to the mounting seat 11. The rotation axis of the rotating portion 212 (as shown by the Y direction in Figure 2 ) is perpendicular to the length direction of the tube body 10; wherein, when the connecting member 22 moves, it can drive each connecting portion 211 to drive the corresponding rotating portion 212 to rotate, so that the three clamping portions 213 open or close. In this application, when clamping an object, the three clamping members 21 of the clamping assembly 20 can open or close synchronously, so as to apply a clamping force to the object more evenly and avoid imbalance or skew during the clamping process.

[0038] Specifically, the doctor controls the connecting member 22 in the tube body 10 to make the connecting member 22 penetrate or retract from the opening 12, so as to drive the connecting portion 211 to move in the length direction of the tube body 10. Since the connecting portion 211 is restricted by the rotating portion 212, the clamping member 21 rotates along the rotation axis of the connecting portion 211, and then the three clamping portions 213 swing. When clamping an object, the connecting member 22 can simultaneously control the three clamping members 21 to move synchronously to achieve closing. The object is more evenly stressed, and its position is not easily deflected after being clamped and fixed, and the clamping effect is better.

[0039] Referring to Figure 3 With Figure 4 , in an embodiment, the connecting member 22 is provided with three universal ball mounting grooves 221; the surgical forceps 1000 further includes a ball head member 30. The ball head member 30 includes a sphere 31 and a connecting rod 32. The sphere 31 is rotatably connected in the corresponding universal ball mounting groove 221. One end of the connecting rod 32 is connected to the sphere 31, and the other end is rotatably connected to the connecting portion 211, and its rotation center line is perpendicular to the length direction of the tube body 10. With such a setting, during the movement of the connecting member 22, its universal ball mounting groove 221 can drive the sphere 31 to move in the length direction of the tube body 10. The movement of the ball head member 30 is restricted by the rotating portion 212 of the clamping member 21, and both the sphere 31 and the universal ball mounting groove 221 and the connecting rod 32 and the connecting portion 211 are in a rotatable connection relationship. The sphere 31 will also rotate relative to the universal ball mounting groove 221 during the movement, driving the connecting rod 32 to swing, and finally driving the clamping member 21 to swing around the rotation axis of the rotating portion 212, so as to realize the synchronous movement of the connecting member 22 to drive the three clamping members 21 to open or close.

[0040] Specifically, the universal ball mounting groove 221 includes three spherical grooves adapted to the sphere 31. The three spherical grooves are arranged at intervals around the center line of the tube body 10, and their positions correspond to the corresponding clamping members 21.

[0041] The connecting rod 32 and the sphere 31 can be integrally formed or assembled; for example, the sphere 31 is provided with a threaded hole, and one end of the connecting rod 32 is provided with a threaded post, and the threaded hole is threadedly connected to the threaded post to realize the assembly of the two. There are many ways to rotatably connect the other end of the connecting rod 32 to the connecting portion 211. For example, in this embodiment, a convex shaft is provided at the other end of the connecting rod 32, and the connecting portion 211 is provided with a rotating hole adapted to the convex shaft, and the convex shaft is rotatably connected in the rotating hole.

[0042] Furthermore, referring to Figure 5, the mounting base 11 includes three connecting ear groups 111. The three connecting ear groups 111 are arranged at equal intervals along the outer contour of the opening 12. The connecting ear group 111 includes two connecting ears 111a that are spaced apart in the extending direction of the outer contour of the opening 12. The rotating part 212 is arranged between the two connecting ears 111a and is rotatably connected to the two connecting ears 111a respectively. With such an arrangement, there is a connecting ear 111a for rotational connection on both sides of the rotating part 212. When the rotating part 212 rotates, the force is more balanced, which is beneficial to improving the rotational stability and further enhancing the clamping effect.

[0043] Further, referring to Figure 5 and Figure 6 , the clamping part 213 includes a clamping surface 213a facing the center line of the pipe body 10. The clamping surface 213a extends in the length direction of the pipe body 10. When the three clamping parts 213 are closed, the clamping surfaces 213a of each clamping part 213 abut against each other. In the open state, the three clamping surfaces 213a can jointly enclose and define a clamping space 214 for accommodating the object to be clamped. In the closed state, since the three clamping surfaces 213a abut against each other, the clamping space 214 no longer exists. It can be seen that the advantage of such a design is that the clamping assembly 20 occupies less space in the closed state, which is beneficial to moving and operating in a narrow environment, improving the flexibility of the clamping assembly 20, and making the surgical forceps 1000 particularly suitable for scenarios where clamping operations need to be performed in a limited space.

[0044] Further, a groove 213b is provided on the clamping surface 213a. The groove 213b can increase the contact area with the object to be clamped, increase the friction force, make the clamping of the object more stable and not easy to break away.

[0045] Preferably, a plurality of grooves 213b are provided. The plurality of grooves 213b are arranged at equal intervals in the extending direction of the clamping surface 213a. With such an arrangement, the clamping part 213 can adapt to objects to be clamped with different sizes and can maintain sufficient contact with the object during the clamping process. Through the equal interval arrangement of the plurality of grooves 213b, it can be ensured that the contact area between the clamping surface 213a and the object is maximized, thereby enhancing the stability and reliability of the clamping.

[0046] Referring to Figure 7In one embodiment, the clamping portion 213 includes a first side surface 213c facing away from the center line of the tube body 10. When the three clamping portions 213 are closed, the first side surface 213c has a tendency to gradually approach the center line of the tube body 10 in the direction away from the tube body 10. With such a configuration, when the three clamping portions 213 are closed, the ends of the three clamping portions 213 away from the tube body 10 occupy less space, which can effectively save operating space and facilitate their insertion into a narrow space for operation. In addition, when the three clamping portions 213 are closed, the first side surface 213c also has a guiding function, which can help the clamping assembly 20 to move smoothly to the position to be operated when closed, thereby ensuring the stability of the operation.

[0047] Further, refer again to Figure 6 and Figure 7 The clamping portion 213 includes a second side surface 213d and a third side surface 213e which are arranged opposite to each other in the direction of the rotation axis of the rotating portion 212, and the distance between the second side surface 213d and the third side surface 213e gradually shortens in the direction close to the center line of the tube body 10. In this way, the clamping portion 213 further reduces the occupation of the external space, so that the doctor can operate more easily in a small space. The convenience of operation is improved, making the operation smoother and more efficient. Specifically, the second side surface 213d and the third side surface 213e are arranged between the first side surface 213c and the clamping surface 213a.

[0048] Reference Figure 1 Combination Figure 8 In one embodiment, the surgical forceps 1000 further includes a trigger 40 and a handle 50. The handle 50 is disposed at the other end of the tube body 10. The trigger 40 is located on a side of the handle 50 close to the clamping assembly 20. The trigger 40 and the handle 50 are spaced apart, and the trigger 40 is rotatably connected to the tube body 10 and is transmission-connected to the connecting member 22. With such a configuration, the doctor can hold the handle 50 and drive the trigger 40 with four fingers. The trigger 40 drives the connecting member 22 to slide in the tube body 10, thereby quickly controlling the clamping member 21 to close, realizing the clamping operation, and helping to improve the surgical efficiency. Specifically, part of the trigger 40 is exposed outside the tube body 10 to facilitate the doctor to apply force, and the other part is rotatably connected to the inside of the tube body 10 and is transmission-connected to the connecting member 22. There are many ways to set the transmission connection. For example, the connecting member 22 is connected to the trigger 40 through a rocker arm, and the two ends of the rocker arm are respectively rotatably connected to the connecting member 22 and the trigger 40. In this way, when the trigger 40 rotates toward the handle 50, it can drive the connecting rod 32 to slide along the tube body 10 through the rocker arm.

[0049] Further, the surgical forceps 1000 further includes a spring 60. The spring 60 is disposed within the tube body 10 and connected to one of the trigger 40 or the connecting member 22. When the trigger 40 rotates towards the grip 50, the spring 60 compresses and stores energy, and the connecting member 22 drives the three clamping portions 213 to open. When the spring 60 releases energy, the three clamping portions 213 are reset to close. With such a setting, the spring 60 can make the connecting member 22 always tend to move towards the inside of the tube body 10, and keep the three clamping portions 213 initially in a closed state through its elastic force. During use, the doctor only needs to drive the trigger 40 to control the closing of the clamping portions 213, without the need for additional operations to open the clamping portions 213, reducing the number of times the doctor needs to manually control the position of the clamping portions 213 and reducing the doctor's operation burden.

[0050] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some of the technical features can be equivalently replaced; and all such modifications and replacements should fall within the protection scope of the appended claims of the present invention.

Claims

1. A surgical forceps, characterized in that: include: A tube body, comprising a mounting seat, the mounting seat being arranged at one end of the tube body, and an opening being arranged at the center of the mounting seat along the length direction of the tube body, the opening being connected to the inner space of the tube body; A clamping assembly, comprising a connecting member and three clamping members, wherein the connecting member can be movably inserted into the tube body, and the three clamping members are arranged at equal intervals around the outside of the opening; the clamping member comprises a connecting portion, a rotating portion and a clamping portion, and the connecting portion is transmission-connected to one end of the connecting member exposed in the opening; the rotating portion is connected to the connecting portion and the clamping portion, and the rotating portion is rotationally connected to the mounting seat, and the rotating axis of the rotating portion is perpendicular to the length direction of the tube body; When the connecting member moves, each connecting part can drive the corresponding rotating part to rotate, thereby opening or closing the three clamping parts.

2. The surgical forceps according to claim 1, characterized in that: The connecting piece is provided with three universal ball mounting grooves; the surgical forceps also include a ball head piece, which includes a sphere and a connecting rod, the sphere is rotatably connected to the corresponding universal ball mounting groove, one end of the connecting rod is connected to the sphere, and the other end is rotatably connected to the connecting part, and its rotation centerline is perpendicular to the length direction of the tube body.

3. The surgical forceps according to claim 2, characterized in that: The mounting base includes three connecting ear groups, which are arranged at equal intervals along the outer contour of the opening. The connecting ear groups include two connecting ears that are spaced apart in the extension direction of the outer contour of the opening. The rotating part is arranged between the two connecting ears and is rotatably connected to the two connecting ears respectively.

4. The surgical forceps according to claim 3, characterized in that: The clamping portion comprises a clamping surface facing the center line of the tube body, and the clamping surface is extended in the length direction of the tube body. When the three clamping portions are closed, the clamping surfaces of each clamping portion abut against each other.

5. The surgical forceps according to claim 4, characterized in that: The clamping surface is provided with a groove.

6. The surgical forceps according to claim 5, characterized in that: A plurality of the grooves are provided, and the plurality of the grooves are arranged at intervals in the extension direction of the clamping surface.

7. The surgical forceps according to claim 4, characterized in that: The clamping portion comprises a first side surface facing away from the center line of the tube body. When the three clamping portions are closed, the first side surface tends to approach the center line of the tube body in a direction away from the tube body.

8. The surgical forceps according to claim 7, characterized in that: The clamping portion comprises a second side surface and a third side surface which are arranged opposite to each other in the direction of the rotation axis of the rotating portion, and the distance between the second side surface and the third side surface gradually shortens in the direction approaching the center line of the tube body.

9. The surgical forceps according to any one of claims 1 to 8, characterized in that: It also includes a trigger and a handle, wherein the handle is arranged at the other end of the tube body, the trigger is located on a side of the handle close to the clamping assembly, the trigger and the handle are arranged at a distance, and the trigger is rotatably connected to the tube body and is transmission-connected to the connecting piece.

10. The surgical forceps according to claim 9, characterized in that: It also includes a spring, which is installed in the tube and connected to one of the trigger or the connecting piece. When the trigger rotates toward the handle, the spring is compressed to store energy.

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