Operating forceps

Abstract

The embodiment of the invention relates to operating forceps. The operating forceps comprise a thrust rod assembly and a forceps handle structure. A clamp handle structure comprises at least three clamp handles which are sequentially and rotatably arranged in a sleeving mode from inside to outside, a thrust rod assembly can move relative to the clamp handle structure in the length direction of the clamp handle structure, and a transmission structure is arranged between the thrust rod assembly and the clamp handle structure. Therefore, when the thrust rod assembly moves, at least two of all the plier handles can be driven to rotate through the transmission structure, and the clamping ends of all the plier handles can rotate to the mutually staggered position to be in an open state or rotate to the mutually stacked position to be in a closed state. The clamping structure formed by the clamping ends of the at least three forceps handles can better fix and clamp a surgical operation part, so that the stability of fixing and clamping is better, surgical operation is more convenient, and the surgical time is shortened.

Description

Technical Field

[0001] The present invention relates to the field of surgical instrument technology, and in particular to a surgical forceps. Background Technology

[0002] Shoulder dislocation is a common condition, specifically a dislocation of the glenohumeral joint, where the humeral head slips out of the glenoid fossa, causing dislocation of the connection between the two. Currently, bone grafting surgery is the most common treatment.

[0003] In bone grafting surgery, to better and more accurately remove the coracoid process, surgical forceps are used to clamp and fix it during the resection. Due to the limited space in this surgery, the surgical forceps can only clamp and fix the coracoid process from above and below, resulting in poor stability of the fixation operation, which in turn leads to inconvenience and indirectly prolongs the operation time. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, embodiments of the present invention provide a surgical forceps.

[0005] This invention provides a surgical forceps, including a push rod assembly and a forceps handle structure; The thrust rod assembly is sleeved outside the plier structure and can reciprocate relative to the plier structure along the length of the plier structure; the plier structure includes at least three pliers that are rotatably sleeved from the inside out, and one end of each plier has a clamping end; A transmission structure is provided between the push rod assembly and the forceps structure. The transmission structure is used to drive at least two of the forceps to rotate when the push rod assembly moves, so that the surgical forceps can switch between an open state and a closed state.

[0006] In some embodiments, the transmission structure includes a transmission member disposed on the thrust rod assembly and a sliding groove disposed on each of the clamps, the transmission member being slidable along the sliding groove when the thrust rod assembly moves; At least two of the sliding grooves are helical grooves extending circumferentially along the clamp structure.

[0007] In some embodiments, two of the sliding grooves are helical grooves, and the two helical grooves rotate in opposite directions; The remaining one of all the sliding grooves is a horizontal groove that extends along the length of the clamp structure.

[0008] In some embodiments, a first annular groove is formed on the outer wall of the innermost clamp handle, and a first connecting hole is provided on the outermost clamp handle. A first connector is inserted into the first annular groove and the first connecting hole to restrict the movement of the innermost clamp handle along the length direction of the clamp handle structure. The first annular groove is located at one end of the sliding groove away from the clamping end of the clamping structure.

[0009] In some embodiments, a second annular groove is formed on the middle clamp handle, and a second connecting hole is provided on the outermost clamp handle. A second connector is inserted into the second annular groove and the second connecting hole to restrict the movement of the middle clamp handle along the length direction of the clamp handle structure. The second annular groove is located at one end of the sliding groove near the clamping end of the clamping structure.

[0010] In some embodiments, the clamping end includes a first clamping body, a second clamping body, and a third clamping body connected in sequence; the end of the first clamping body away from the second clamping body is connected to a corresponding clamping handle, and the end of the third clamping body away from the second clamping body forms a free end; The first clamping body and the third clamping body extend along the length direction of the clamp handle structure, and the second clamping body extends radially along the clamp handle structure.

[0011] In some embodiments, the push rod assembly is provided with a connecting portion that can engage with the outermost forceps handle when the push rod assembly is moved to place the surgical forceps in the open or closed state, thereby restricting the movement of the push rod assembly.

[0012] In some embodiments, the connecting portion includes a fastening hole disposed on the push rod assembly and a fastener that engages with the fastening hole. The fastener may pass through the fastening hole when the surgical forceps are in the open state or the closed state and abut against the outer wall of the outermost forceps handle.

[0013] In some embodiments, the thrust rod assembly includes a first thrust rod and a second thrust rod rotatably connected to the first thrust rod, the second thrust rod being located at the end of the first thrust rod away from the clamping end; The first thrust rod has a through hole through which the plier structure can pass, and part of the transmission structure is disposed on the first thrust rod. The second thrust rod is threadedly engaged with the plier structure.

[0014] In some embodiments, a handle is provided at the bottom of the clamp structure; And / or, the outer wall of the second thrust rod is provided with an anti-slip structure.

[0015] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art: This invention provides a surgical forceps, including a push rod assembly and a handle structure. The handle structure comprises at least three handles rotatably mounted sequentially from the inside out, and the push rod assembly is movable relative to the handle structure along its length. A transmission structure is provided between the push rod assembly and the handle structure. This allows the push rod assembly to rotate at least two of the handles during movement, thereby enabling the clamping ends of the handles to rotate to either an open position (staggered from each other) or a closed position (stacked from each other). For example, in the initial state, the surgical forceps can be set to a closed state. At this time, the clamping ends of the entire forceps handle structure are stacked to make its overall volume smaller, so that the surgical forceps can be inserted into the surgical operation site. After insertion, the forceps are moved relative to the forceps handle structure by rotating the push rod assembly. Then, the linkage transmission structure drives at least two of the forceps handles to rotate, so that the clamping ends of the forceps handles are staggered and thus open, to support and fix the surgical operation site. The clamping structure formed by the clamping ends of at least three forceps handles can better fix and clamp the surgical operation site, so its fixation and clamping stability is better, making it easier to perform surgical operations and shorten the operation time. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the surgical forceps in the open state according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the surgical forceps in a closed state according to an embodiment of the present invention; Figure 3 This is an exploded view of the handle structure of the surgical forceps according to an embodiment of the present invention; Figure 4 This is an exploded view of the push rod assembly of the surgical forceps according to an embodiment of the present invention; Figure 5 This is an assembly diagram of the thrust rod assembly of the surgical forceps according to an embodiment of the present invention.

[0019] Among them, 1. Thrust rod assembly; 11. First thrust rod; 12. Second thrust rod; 13. Annular groove; 14. Pin hole; 2. Handle structure; 21. Handle; 211. First handle; 212. Second handle; 213. Third handle; 22. Clamping end; 221. First clamping body; 222. Second clamping body; 223. Third clamping body; 23. First annular groove; 24. Second annular groove; 3. Transmission structure; 31. Sliding groove; 311. Spiral groove; 312. Horizontal groove; 4. Connecting part; 41. Fastener; 5. Handle. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the embodiments of the present invention, the solutions of the embodiments of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0021] Numerous specific details are set forth in the following description in order to provide a thorough understanding of the embodiments of the invention, but the embodiments of the invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0022] Reference Figures 1 to 5 As shown, this embodiment provides a surgical forceps, including a push rod assembly 1 and a forceps handle structure 2.

[0023] The push rod assembly 1 is sleeved outside the plier structure 2 and can reciprocate relative to the plier structure 2 along the length direction of the plier structure 2; the plier structure 2 includes at least three plier handles 21 that are rotatably sleeved from the inside to the outside, and one end of each plier handle 21 has a clamping end 22.

[0024] A transmission structure 3 is provided between the push rod assembly 1 and the forceps handle structure 2. The transmission structure 3 is used to drive at least two of the forceps handles 21 to rotate when the push rod assembly 1 moves, so that the surgical forceps can switch between an open state and a closed state.

[0025] In specific implementation, refer to Figure 1 and Figure 2 As shown, the thrust rod assembly 1 can be sleeved on the outside of the clamp handle structure 2. Specifically, the clamp handle structure 2 can be partially sleeved inside the thrust rod assembly 1. The thrust rod assembly 1 and the clamp handle structure 2 are rotatably fitted together, and the thrust rod assembly 1 can reciprocate relative to the clamp handle structure 2 along the length direction of the clamp handle structure 2. The specific length direction can be referred to... Figure 1The x1-x2 direction is shown. For example, the push rod assembly 1 and the clamp structure 2 can be configured for a sliding fit or a threaded fit. When the push rod assembly 1 and the clamp structure 2 are in a sliding fit, the push rod assembly 1 can be pushed along the x1-x2 direction by external force or by a linear motor. Figure 1 The sliding motion in the x1-x2 direction shown achieves reciprocating movement relative to the clamp structure 2. When the push rod assembly 1 is threadedly engaged with the clamp structure 2, the push rod assembly 1 can be rotated by an external force or a rotary motor, thereby achieving reciprocating movement of the push rod assembly 1 relative to the clamp structure 2 through the threaded engagement of the two.

[0026] Specifically, the clamp handle structure 2 includes at least three clamp handles 21. The at least three clamp handles 21 being rotatably sleeved from the inside out means that at least three clamp handles 21 are sequentially sleeved from the center to the outer edge, and are rotatably engaged with each other. For example, when the clamp handles 21 are configured as follows... Figure 3 When three clamps are shown, the three clamp handles 21 can be configured to include a first clamp handle 211 located in the middle, a second clamp handle 212 located in the middle, and a third clamp handle 213 located on the outermost side. Alternatively, in other examples, the clamp handles 21 can be configured to be four or more.

[0027] Meanwhile, a transmission structure 3 is provided between the forceps handle structure 2 and the push rod assembly 1. In the initial state, i.e., when the surgical forceps are in the closed state, the clamping ends 22 of all the forceps handles 21 can be stacked on top of each other and arranged as follows: Figure 2 In the closed state shown, the entire forceps handle structure 2 is relatively small, making it easier to extend into the surgical site and requiring less space. When it is necessary to clamp and fix the surgical site after insertion, the push rod assembly 1 can be pushed along the first direction to move it along the length of the forceps handle structure 2, thereby rotating at least two of the forceps handles 21. This allows the clamping ends 22 of all the forceps handles 21 to rotate and become staggered, meaning that all the clamping ends 22 can be arranged circumferentially around the forceps handle structure 2. At this point, the surgical forceps can be considered to be in the open state (refer to...). Figure 1 As shown in the diagram, this allows for clamping and fixing of the surgical site (such as the coracoid process), and the surgical site is supported by at least three clamping ends 22, providing more stable support for better surgical operation and saving operation time. After the surgical operation is completed, the push rod assembly 1 can be pushed along the second direction to drive the transmission structure 3 to rotate at least two of all the clamping ends 21, so that the clamping ends 22 of all the clamping ends 21 are back in the position shown in the diagram. Figure 2 After the device is closed as shown, it is stored away.

[0028] It should be noted that the first direction can be, for example, as follows: Figure 1 The x1-x2 direction shown can be followed by a second direction such as... Figure 1 The x2-x1 direction is shown.

[0029] The surgical forceps of this embodiment include a forceps handle structure 2 comprising at least three forceps handles 21 rotatably mounted sequentially from the inside out, and a push rod assembly 1 that can move relative to the forceps handle structure 2 along the length of the forceps handle structure 2. A transmission structure 3 is provided between the push rod assembly 1 and the forceps handle structure 2, so that when the push rod assembly 1 moves, at least two of the forceps handles 21 can be rotated through the transmission structure 3, thereby allowing the clamping ends 22 of all the forceps handles 21 to rotate to a position that is staggered from each other to be in an open state or to a position that is stacked to each other to be in a closed state. For example, in the initial state, each surgical forceps can be set to be in a closed state. At this time, the clamping ends 22 of the entire forceps handle structure 2 are stacked to make its overall volume smaller, so that the surgical forceps can be inserted into the surgical operation site. After insertion, the forceps are moved relative to the forceps handle structure 2 by rotating the push rod assembly 1. Then, the linkage transmission structure 3 drives at least two of the forceps handles 21 to rotate, so that the clamping ends 22 of the forceps handles 21 are staggered and thus open, in order to support and fix the surgical operation site. The clamping structure formed by the clamping ends 22 of at least three forceps handles 21 can better fix and clamp the surgical operation site. Therefore, its fixation and clamping stability is better, making it easier to perform surgical operations and shorten the operation time.

[0030] Reference Figures 1 to 3 As shown, in some embodiments, the transmission structure 3 includes a transmission member disposed on the thrust rod assembly 1 and a sliding groove 31 disposed on each clamp 21, wherein the transmission member can slide along the sliding groove 31 when the thrust rod assembly 1 moves.

[0031] At least two of all sliding grooves 31 are spiral grooves 311 extending circumferentially along the shank structure 2.

[0032] In specific implementation, refer to Figure 3 As shown, all the clamp handles 21 are provided with sliding grooves 31, and the push rod assembly 1 is provided with a transmission component. When the push rod assembly is pushed along... Figure 1 When moving in the x1-x2 direction as shown, the transmission component connected to the thrust rod assembly 1 moves simultaneously and slides within all the sliding grooves 31. Since at least two of the sliding grooves 31 are helical grooves 311, the movement of the transmission component causes the clamp handles 21 with helical grooves 311 to rotate, thereby causing the clamping ends 22 of the clamp handles 21 to rotate. This allows the clamping ends 22 of all the clamp handles 21 to eventually be staggered and arranged as follows: Figure 1 The open state is shown. Conversely, when the push rod assembly is pushed along... Figure 1 When moving in the x2-x1 direction as shown, the clamping ends 22 of all the clamps 21 can eventually be stacked on top of each other, forming a shape as shown. Figure 2The closed state is shown.

[0033] It should be noted that the transmission component can be either a drive shaft or a pin. The pin or drive shaft can be connected to the thrust rod assembly 1, so that the drive shaft or pin moves within the sliding groove 31 when the thrust rod assembly 1 moves.

[0034] Furthermore, when at least two of the sliding grooves 31 are helical grooves 311, the at least two helical grooves 311 can be configured to have opposite directions of rotation, so that the corresponding clamp handles 21 can be driven to rotate in opposite directions until they are offset from each other under the movement of the transmission member. Alternatively, the at least two helical grooves 311 can be configured to have different pitches but the same direction of rotation, which can also cause the clamp handles 21 with helical grooves 311 to rotate in the same direction until they are offset from each other under the drive of the transmission member.

[0035] For example, in this embodiment, two of the sliding grooves 31 on at least three clamp handles 21 can be set to be helical grooves 311, or all the sliding grooves 31 on the clamp handles 21 can be set to be helical grooves 311.

[0036] Reference Figures 1 to 3 As shown, in some embodiments, two of all sliding grooves 31 are helical grooves 311, and the two helical grooves 311 rotate in opposite directions.

[0037] The remaining one of all sliding grooves 31 is a horizontal groove 312 that extends along the length of the clamp structure 2.

[0038] Specifically, refer to Figure 3 As shown, the sliding grooves 31 on the innermost and middle clamp handles 21 can be set as spiral grooves 311 with opposite directions of rotation, while the sliding grooves 31 on the outermost clamp handles 21 are along... Figure 1 The horizontal groove 312 extending in the x1-x2 direction shown means that when the transmission component moves and slides in the horizontal groove 312 and the spiral groove 311, it does not drive the outermost clamp 21 to rotate, but drives the innermost and middle clamp 21 to rotate in opposite directions, so that the clamping ends 22 of all clamp 21 are staggered to each other to be in an open state or stacked to each other to be in a closed state.

[0039] Reference Figure 3 As shown, in some embodiments, a first annular groove 23 is formed on the outer wall of the innermost clamp handle 21, and a first connecting hole is provided on the outermost clamp handle 21. A first connector is inserted into the first annular groove 23 and the first connecting hole to restrict the movement of the innermost clamp handle 21 along the length direction of the clamp handle structure 2.

[0040] The first annular groove 23 is located at the end of the sliding groove 31 away from the clamping end 22 of the clamping end 22 of the shank structure 2.

[0041] In practice, the first connector passes through the first connecting hole and the first annular groove 23, so the first connector can slide along the first annular groove 23, thus restricting the innermost clamp handle 21 from sliding along the groove. Figure 1 The clamp moves back and forth in the direction of x1-x2, but does not restrict the rotation of the innermost clamp 21. This ensures that the innermost clamp 21 can rotate to switch between open and closed states, while not detaching from the outermost clamp 21 to avoid falling.

[0042] For example, the first connector may be a pin or a screw. The first connecting hole may be a smooth hole that mates with the pin or a screw hole that mates with the screw.

[0043] In addition, the first annular groove 23 can be located at the end of the innermost clamp 21 away from where the clamping end 22 is provided, so as to make full use of the position where the first annular groove 23 is provided.

[0044] Reference Figure 3 As shown, in some embodiments, a second annular groove 24 is formed on the middle clamp handle 21, and a second connecting hole is provided on the outermost clamp handle 21. A second connector is inserted into the second annular groove 24 and the second connecting hole to restrict the movement of the middle clamp handle 21 along the length direction of the clamp handle structure 2.

[0045] The second annular groove 24 is located at one end of the sliding groove 31 near the clamping end 22 of the clamping structure 2.

[0046] In practice, the second connector passes through the second connecting hole and the second annular groove 24, so the second connector can slide along the second annular groove 24, thus restricting the middle clamp 21 from sliding along the groove. Figure 1 The clamp moves back and forth in the direction of x1-x2, but does not restrict the rotation of the middle clamp 21. This ensures that the middle clamp 21 can rotate to switch between open and closed states, while not detaching from the outermost clamp 21 to avoid falling.

[0047] For example, the second connector may be a pin or a screw. The second connecting hole may be a smooth hole that mates with the pin or a threaded hole that mates with the screw.

[0048] Furthermore, the second annular groove 24 can be located near the end of the middle clamp 21 where the clamping end 22 is provided, so as to make full use of the position where the second annular groove 24 is provided.

[0049] Furthermore, the first annular groove 23 can be located at the end of the innermost clamp handle 21 away from where the clamping end 22 is located, and the second annular groove 24 can be located at the end of the middle clamp handle 21 near where the clamping end 22 is located. The first annular groove 23 and the second annular groove 24 are staggered, so that the second connecting hole and the first connecting hole on the outermost clamp handle 21 can be staggered, thus avoiding positional interference between the two.

[0050] Reference Figures 1 to 3 As shown, in some embodiments, the clamping end 22 includes a first clamping body 221, a second clamping body 222 and a third clamping body 223 connected in sequence; the end of the first clamping body 221 away from the second clamping body 222 is connected to the corresponding clamping handle 21, and the end of the third clamping body 223 away from the second clamping body 222 forms a free end.

[0051] The first clamping body 221 and the third clamping body 223 extend along the length direction of the clamp handle structure 2, and the second clamping body 222 extends radially along the clamp handle structure 2.

[0052] In other words, the first clamping body 221, the second clamping body 222, and the third clamping body 223 can ultimately form as follows: Figure 1 The Z-shaped structure shown, namely the clamping end 22, can be partially bent to better fit the surgical site.

[0053] For example, the first clamping body 221, the second clamping body 222, and the third clamping body 223 can be integrally formed to save manufacturing steps and improve the structural strength of the entire clamping end 22. In addition, the clamping end 22 and the corresponding clamping handle 21 can be integrally formed.

[0054] Reference Figures 1 to 5 As shown, in some embodiments, the push rod assembly 1 is provided with a connecting part 4, which can cooperate with the outermost handle 21 when the surgical forceps is in an open or closed state to restrict the movement of the push rod assembly 1.

[0055] In other words, when the surgical forceps are in an open or closed state, the push rod assembly 1 can be fixed by the connecting part 4 to prevent it from continuing to move and causing the opening position of the clamping end 22 to change or the closing state to occur, thus affecting its use or storage.

[0056] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in some embodiments, the connecting part 4 includes a fastening hole provided on the push rod assembly 1 and a fastener 41 that cooperates with the fastening hole. The fastener 41 can be inserted into the fastening hole when the surgical forceps is in the open state and abut against the outer wall of the outermost forceps handle 21 to restrict the movement of the push rod assembly 1.

[0057] For example, the fastening hole can be a smooth hole or a threaded hole, and the fastener 41 can be a bolt or pin that passes through the smooth hole or the threaded hole. In this case, the bolt or pin abuts against the outer wall of the outermost clamp handle 21 to achieve relative fixation between the two. Therefore, the thrust rod assembly 1 cannot move relative to the clamp handle structure 2.

[0058] For example, in other examples, the connecting part 4 may be an elastic protrusion provided on the push rod assembly 1 and a locking hole provided on the outermost clamp 21, and the two are fixed relative to each other by making the elastic protrusion engage in the locking hole.

[0059] Reference Figure 4 and Figure 5 As shown, in some embodiments, the thrust rod assembly 1 includes a first thrust rod 11 and a second thrust rod 12 rotatably connected to the first thrust rod 11, the second thrust rod 12 being located at the end of the first thrust rod 11 away from the clamping end 22.

[0060] The first thrust rod 11 has a through hole through which the clamp handle structure 2 can pass, and part of the transmission structure 3 is set on the first thrust rod 11. The second thrust rod 12 is threadedly engaged with the clamp handle structure 2.

[0061] In specific implementation, the transmission structure 3 can specifically refer to the transmission component. The second push rod 12 is threadedly engaged with the handle structure 2, which can specifically be the outermost handle 21. When it is necessary to rotate the handle 21 to make all the clamping ends 22 staggered or stacked, the second push component can be rotated so that the second push rod moves along the length direction of the handle structure 2 while driving the first push rod 11 to move synchronously. This causes the transmission component located on the first push rod 11 to slide along the sliding groove 31 on the corresponding handle 21, ultimately achieving the switching between the open and closed states of the surgical forceps.

[0062] For example, the first thrust rod 11 and the second thrust rod 12 can be rotatably connected by a pin or by a snap fastener. When the two are rotatably connected by a pin, an annular groove 13 can be formed on the second thrust rod 12, and a pin hole 14 is provided on the first thrust rod 11. The pin passes through the pin hole 14 and the annular groove 13 in sequence to achieve the rotatable connection between the two.

[0063] Reference Figures 1 to 3As shown, in some embodiments, the bottom of the clamp structure 2 is provided with a handle 5 for easy gripping by the operator.

[0064] For example, the handle 5 can be snapped or screwed onto the pliers handle structure 2. Specifically, the handle 5 is attached to the outermost pliers handle 21.

[0065] In some embodiments, an anti-slip structure is provided on the outer wall of the second thrust rod 12 to prevent slippage when rotating or pushing the second thrust rod 12. For example, the anti-slip structure may specifically be an anti-slip texture or an anti-slip protrusion.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The above descriptions are merely specific embodiments of the present invention, enabling those skilled in the art to understand or implement the embodiments of the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented therein. Therefore, the embodiments of the present invention are not to be limited to the embodiments described herein, but are to be accorded the widest scope consistent with the principles and novel features of the embodiments invented herein.

Claims

1. A surgical forceps, characterized in that, Includes a thrust rod assembly (1) and a clamp structure (2); The thrust rod assembly (1) is sleeved on the outside of the plier structure (2) and can reciprocate relative to the plier structure (2) along the length direction of the plier structure (2); the plier structure (2) includes at least three pliers (21) that are rotatably sleeved from the inside to the outside, and one end of all the pliers (21) has a clamping end (22). A transmission structure (3) is provided between the push rod assembly (1) and the forceps structure (2), the transmission structure (3) being used to drive at least two of the forceps (21) to rotate when the push rod assembly (1) moves, so that the surgical forceps can switch between an open state and a closed state.

2. The surgical forceps according to claim 1, characterized in that, The transmission structure (3) includes a transmission component disposed on the thrust rod assembly (1) and a sliding groove (31) disposed on each of the clamps (21). The transmission component can slide along the sliding groove (31) when the thrust rod assembly (1) moves. At least two of the sliding grooves (31) are spiral grooves (311) extending circumferentially along the shank structure (2).

3. The surgical forceps according to claim 2, characterized in that, Two of the sliding grooves (31) are the spiral grooves (311), and the two spiral grooves (311) have opposite directions of rotation; The other remaining one of all the sliding grooves (31) is a horizontal groove (312) extending along the length direction of the clamp structure (2).

4. The surgical forceps according to claim 2, characterized in that, A first annular groove (23) is formed on the outer wall of the innermost clamp handle (21), and a first connecting hole is provided on the outermost clamp handle (21). A first connector is provided in the first annular groove (23) and the first connecting hole to restrict the movement of the innermost clamp handle (21) along the length direction of the clamp handle structure (2). The first annular groove (23) is located at the end of the sliding groove (31) away from the clamping end (22).

5. The surgical forceps according to claim 2, characterized in that, A second annular groove (24) is formed on the middle clamp handle (21), and a second connecting hole is provided on the outermost clamp handle (21). A second connector is inserted in the second annular groove (24) and the second connecting hole to restrict the movement of the middle clamp handle (21) along the length direction of the clamp handle structure (2). The second annular groove (24) is located at one end of the sliding groove (31) near the clamping end (22).

6. The surgical forceps according to any one of claims 1 to 5, characterized in that, The clamping end (22) includes a first clamping body (221), a second clamping body (222), and a third clamping body (223) connected in sequence; the end of the first clamping body (221) away from the second clamping body (222) is connected to the corresponding clamp handle (21), and the end of the third clamping body (223) away from the second clamping body (222) forms a free end; The first clamping body (221) and the third clamping body (223) extend along the length direction of the clamp handle structure (2), and the second clamping body (222) extends radially along the clamp handle structure (2).

7. The surgical forceps according to any one of claims 1 to 5, characterized in that, The push rod assembly (1) is provided with a connecting part (4), which can cooperate with the outermost handle (21) when the push rod assembly (1) moves to the open state or the closed state of the surgical forceps to restrict the movement of the push rod assembly (1).

8. The surgical forceps according to claim 7, characterized in that, The connecting part (4) includes a fastening hole provided on the push rod assembly (1) and a fastener (41) that cooperates with the fastening hole. The fastener (41) can be inserted into the fastening hole when the surgical forceps is in the open state or the closed state, and abut against the outer wall of the forceps handle (21) located on the outermost side.

9. The surgical forceps according to any one of claims 1 to 5, characterized in that, The thrust rod assembly (1) includes a first thrust rod (11) and a second thrust rod (12) rotatably connected to the first thrust rod (11), the second thrust rod (12) being located at the end of the first thrust rod (11) away from the clamping end (22); The first thrust rod (11) has a through hole through which the clamp structure (2) passes and part of the transmission structure (3) is disposed on the first thrust rod (11), and the second thrust rod (12) is threadedly engaged with the clamp structure (2).

10. The surgical forceps according to claim 9, characterized in that, The bottom of the clamp structure (2) is provided with a handle (5); And / or, the outer wall of the second thrust rod (12) is provided with an anti-slip structure.

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