CN114305857A

CN114305857A - Surgical forceps

Info

Publication number: CN114305857A
Application number: CN202111480659.8A
Authority: CN
Inventors: 李忠泽; 封骁; 孙蒙; 李菊敏; 蒋健虹
Original assignee: Suzhou Bili Medical Technology Co ltd
Current assignee: Suzhou Bili Medical Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-04-12

Abstract

The embodiment of the application provides surgical forceps, which comprise a sliding component, a main shaft, a sleeve, a forceps core and a driving part; the sliding assembly is movably connected with the main shaft and can move relative to the main shaft; the sleeve is movably sleeved outside the tweezers core, the sleeve is connected with the sliding assembly, the tweezers core penetrates through the sliding assembly and is connected with the main shaft, and a clamping part is arranged at one end of the tweezers core, which is far away from the main shaft, and is arranged at one end of the sleeve; the driving part is sleeved outside the sliding assembly and the main shaft and has an initial state and a pressing state; when the driving part is in an initial state, the clamping part extends out of the sleeve, and the clamping part is in an open state; the drive division is under the state of pressing, and it can take place to deform and drive sliding assembly along tweezers core's axial and drive the sleeve pipe and move to pressing from both sides the portion of getting, presss from both sides the portion of getting at least part and withdraws the sleeve pipe, presss from both sides the portion of getting and becomes to press from both sides tightly gradually. The clamping part can enter and exit the sleeve under the control of the driving part to realize clamping or opening, and the clamping operation can be stably realized in the operation.

Description

Surgical forceps

Technical Field

The embodiment of the application relates to the technical field of medical instruments, in particular to surgical forceps.

Background

In recent years, with the improvement of living standard and the rapid development of electronic products, the types and the number of eye diseases of people are greatly increased. Some eye diseases also require interventional procedures for treatment. Forceps are sometimes used to grasp the inner limiting membrane or other growth promoting membrane during surgery.

In the prior art, the surgical forceps for ophthalmology generally comprises a forceps head and a forceps handle, the structure of the surgical forceps is simple, and when the surgical forceps is used, the forceps head can be controlled to be clamped or opened by holding the forceps handle together by a forefinger and a thumb, so that the clamping and releasing functions are correspondingly realized. However, doctors find that it is difficult to firmly and stably hold the forceps handle for a long time during ophthalmologic operations, and once the operation time is long, the doctors often feel uncomfortable in holding fingers, easily feel tired and sore in hands, and may cause unstable holding, thereby increasing the difficulty and risk of operation to a certain extent. In addition, the force of the existing surgical forceps is not well controlled when the forceps handle is held, and the inner limiting membrane or other proliferation membranes are easily damaged.

Disclosure of Invention

An object of this application is to provide a new technical scheme of surgical forceps to solve current surgical forceps centre gripping unstability at the during operation, and the difficult problem of control of clamping-force.

The application provides surgical forceps. The surgical forceps comprises:

a sliding assembly;

the sliding assembly is movably connected with the main shaft and can move relative to the main shaft;

the sleeve is movably sleeved outside the tweezers core, the sleeve is connected with the sliding assembly, the tweezers core penetrates through the sliding assembly and is connected with the main shaft, a clamping part is arranged at one end, far away from the main shaft, of the tweezers core, and the clamping part is arranged at one end of the sleeve; and

the driving part is sleeved outside the sliding assembly and the main shaft and has an initial state and a pressing state;

when the driving part is in an initial state, the clamping part extends out of the sleeve, and the clamping part is in an open state;

the driving part can deform along the axial direction of the forceps core and drive the sliding assembly to drive the sleeve to move towards the clamping part in the pressing state, the clamping part can at least partially retract the sleeve, and the clamping part is gradually clamped in the opening state.

Optionally, the sliding assembly comprises: a sliding shaft, a core shaft and an elastic element;

the main shaft is provided with a first inner cavity arranged along the axial direction of the main shaft; the mandrel is movably arranged in the first inner cavity, and the elastic element is sleeved outside the mandrel; one end of the sliding shaft is inserted into the first inner cavity and connected with the mandrel;

the mandrel is configured to move with the sliding shaft relative to the main shaft, and the elastic element is used for providing an elastic force for driving the sliding shaft and the mandrel to move in a resetting mode.

Optionally, the elastic element is a spring, and the spring includes a first elastic segment, a second elastic segment, and an intermediate elastic segment connected between the first elastic segment and the second elastic segment;

wherein a pitch of the intermediate resilient section is greater than a pitch of the first resilient section and the second resilient section.

Optionally, a stopper is disposed in the first inner cavity;

the mandrel comprises a threaded section, a supporting section connected with the threaded section and a stopping section connected with the supporting section;

the threaded section is in threaded connection with the sliding shaft;

the supporting section penetrates through the stopping part and can move along with the sliding shaft; the elastic element is sleeved outside the supporting section, one end of the elastic element is abutted against the stopping section, and the other end of the elastic element is abutted against the stopping section;

the stop portion can be used to form a limit stop for the stop section.

Optionally, the sliding shaft has a second inner cavity arranged along the axial direction thereof;

the mandrel is provided with a third inner cavity arranged along the axial direction of the mandrel;

the second inner cavity is communicated with the third inner cavity, and the third inner cavity is communicated with the first inner cavity of the main shaft.

Optionally, a first through hole is formed in one end, away from the main shaft, of the sliding shaft, and the first through hole is communicated with the second inner cavity;

the sleeve is detachably inserted into the first through hole;

the forceps core sequentially penetrates through the first through hole, the second inner cavity and the third inner cavity to extend into the first inner cavity and be connected with the main shaft.

Optionally, a handle is connected to one end of the main shaft, which is far away from the sliding shaft;

a fourth inner cavity is arranged in the handle, and one end, close to the main shaft, of the fourth inner cavity is communicated with the first inner cavity.

Optionally, the surgical forceps further includes: the top cover is detachably connected with one end, far away from the main shaft, of the sliding shaft;

the top cover is provided with a second through hole, and the sleeve is detachably inserted into the second through hole.

Optionally, one end of the driving part is detachably connected to the sliding shaft, and the other end of the driving part is detachably connected to the main shaft.

Optionally, the gripping section comprises: a plurality of jaws and a connecting portion connecting the plurality of jaws;

the sleeve moves towards the connecting part, and one ends, far away from the connecting part, of the clamping jaws can be controlled to be close to each other. The beneficial effects of the embodiment of the application are that:

the embodiment of the application provides a scheme of surgical forceps, which can be applied to ophthalmic surgery; this surgical forceps can press the drive division through handheld, makes the drive division produce deformation and orders about sliding assembly and take the sleeve pipe to take place to remove, presss from both sides the portion of getting and can realize stretching out or the sleeve pipe of taking in at sheathed tube tip to the realization utilizes the portion of getting to press from both sides the operation of getting and releasing to inner limiting membrane or other proliferation membranes, presss from both sides and gets and release process easily control. And the clamping is stable when the clamping is carried out, and the clamping force is easy to control.

Other features of the present description and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a schematic structural diagram of forceps provided in an embodiment of the present application;

FIG. 2 is an exploded view of the core and sleeve of the forceps of FIG. 1;

FIG. 3 is an exploded view of the top cover, sliding shaft and spindle of FIG. 1;

FIG. 4 is an exploded view of the resilient member, mandrel and handle of FIG. 1;

FIG. 5 is a schematic structural diagram of the driving part in FIG. 1;

fig. 6 is a schematic structural view of the elastic member in fig. 1.

Reference numerals:

1. a forceps core; 101. a gripping section; 2. a sleeve; 3. a top cover; 301. a second through hole; 4. a sliding shaft; 401. a second lumen; 402. a first through hole; 5. a main shaft; 501. a first lumen; 5011. a stopper portion; 6. a mandrel; 601. a threaded segment; 602. a support section; 603. a stop section; 604. a third lumen; 7. a handle; 701. a fourth lumen; 8. a fixing member; 801. a through hole; 9. a fastener; 10. an elastic element; 1001. a first elastic section; 1002. a second elastic section; 1003. a middle elastic section; 11. a drive section.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

According to one embodiment of the present application, a surgical forceps is provided. The surgical forceps can be applied to ophthalmic surgery, namely, the surgical forceps can be used as ophthalmic surgical forceps.

The surgical forceps provided by the embodiment of the application can be used for clamping an inner limiting membrane or other proliferation membranes.

According to an embodiment of the present application, there is provided a surgical forceps, as shown in fig. 1 to 6, including: a sliding assembly, a main shaft 5, a sleeve 2 and a forceps core 1, and a driving part 11; the sliding assembly is movably connected with the main shaft 5 and can move relative to the main shaft 5; the sleeve 2 is movably sleeved outside the tweezer core 1, the sleeve 2 is connected with the sliding assembly, the tweezer core 1 penetrates through the sliding assembly and is connected with the main shaft 5, a clamping part 101 is arranged at one end, far away from the main shaft 5, of the tweezer core 1, and the clamping part 101 is arranged at one end of the sleeve 2; the driving part 11 is sleeved outside the sliding assembly and the main shaft 5, and has an initial state and a pressing state;

wherein, in the initial state of the driving part 11, the gripping part 101 extends out of the casing 2, and the gripping part 101 is in an open state;

the driving part 11 can deform along the axial direction of the forceps core 1 in a pressing state, and drives the sliding assembly to drive the sleeve 2 to move towards the clamping part 101, the clamping part 101 can at least partially retract into the sleeve 2, and the clamping part 101 is gradually clamped from the opening state.

It should be noted that the gripping part 101 is gradually closed, i.e., gradually clamped, during the process of being received in the casing 2.

The embodiment of the application provides a scheme of surgical forceps, which can be applied to ophthalmic surgery. When the surgical forceps work, the driving portion 11 can be pressed easily through holding, so that the driving portion 11 deforms, the sliding assembly is driven to drive the sleeve 2 to move back and forth relative to the forceps core 1, at the moment, the clamping portion 101 can stretch out or retract the sleeve 2 from the end portion of the sleeve 2, accordingly, the clamping portion 101 can be used for clamping and releasing an inner limiting membrane or other growth membranes, and the whole clamping and releasing process is easy to control easily. In addition, the clamping is stable when the clamping is carried out, and the clamped object (such as an inner limiting membrane or other proliferation membranes) is not easy to fall off; the clamping force is easy to control, and the clamped object is not easy to damage.

When the surgical forceps provided by the embodiment of the application is used in an operation, even if the operation time is long, the surgeon does not feel uncomfortable to hold the fingers and is not easy to feel tired and sore hands. Because the clamping is stable, the difficulty and the risk of the operation can be reduced to a certain extent. The defect problems in the prior art are overcome.

The tweezers core 1 is in a strip-shaped structure, one end of the tweezers core is a free end, and the other end of the tweezers core is a fixed end; the fixed end is used for realizing the fixed connection of the tweezers core 1 and the main shaft 5, and the free end is provided with a clamping part 101.

For example, the forceps core 1 and the grasping portion 101 are integrally formed.

Wherein, sleeve pipe 2 is hollow tubule column structure, tubule column structure 2 cover is established 1 outside and parcel of tweezers core 1's part, sleeve pipe 2 can for 1 reciprocating motion of tweezers core, so that press from both sides portion 101 and can stretch out or retract in the tip of sleeve pipe 2, and then realize press from both sides the clamp of portion 101 and get and release function.

The driving portion 11 is, for example, an elastic deformation member. For example, in a cage-like structure.

When the driving part 11 is pressed, the driving part itself can generate the axial extension deformation along the tweezers core 1, and then the driving component can be driven to generate the sliding motion relative to the main shaft 5, and further the sleeve 2 is driven to move.

In some examples of the present application, as shown in fig. 1, 3 and 4, the slide assembly includes: a sliding shaft 4, a core shaft 6 and an elastic element 10;

the main shaft 5 is provided with a first inner cavity 501 arranged along the axial direction of the main shaft; the mandrel 6 is movably arranged in the first inner cavity 501, and the elastic element 10 is sleeved outside the mandrel 6; one end of the sliding shaft 4 is inserted into the first inner cavity 501 and connected with the mandrel 6;

the spindle 6 is configured to move with the sliding shaft 4 relative to the main shaft 5, and the elastic element 10 is used for providing an elastic force for driving the sliding shaft 4 and the spindle 6 to move in a resetting manner.

That is, the slide shaft 4 and the spindle 6 are both connected together. Therefore, when the sliding component slides relative to the main shaft 5, the sliding shaft 4 can drive the core shaft 6 to slide, and further drive the sleeve 2 to move. While the resetting of the sliding shaft 4 and the mandrel 6 is driven and controlled by the elastic element 10, namely the resetting of the sleeve 2 is provided with elastic force by the elastic element 10.

Through such design, the sliding assembly can not only drive sleeve 2 orientation press from both sides the portion 101 and remove, so that press from both sides the portion 101 and receive the tip of sleeve 2, can also make press from both sides the portion 101 and stretch out the tip of sleeve 2, thereby realize press from both sides the portion 101 and press from both sides tightly and open.

For example, as shown in fig. 6, the elastic member 10 is a spring.

As shown in fig. 6, the spring includes a first elastic segment 1001, a second elastic segment 1002, and an intermediate elastic segment 1003 connected between the first elastic segment 1001 and the second elastic segment 1002;

wherein the pitch of the middle elastic segment 1003 is greater than the pitch of the first elastic segment 1001 and the second elastic segment 1002.

It should be noted that, the elastic element 10 is made of a spring with unequal pitches, which has the advantages that when the driving portion 11 is pressed, the required force value is stable and has no sudden peak, so that the hand feeling of the product (i.e. the surgical forceps) is smoother, the transmission of the fingers and the clamping portion 101 is smooth, and the shake in the use process is reduced.

In some examples of the present application, as shown in fig. 1, 3 and 4, the spindle 5 has a first inner cavity 501 disposed along an axial direction, and a stopper portion 5011 is disposed in the first inner cavity 501;

the mandrel 6 comprises a threaded section 601, a supporting section 602 connected with the threaded section 601, and a stopping section 603 connected with the supporting section 602;

wherein the threaded section 601 is in threaded connection with the sliding shaft 4;

the support section 602 can pass through the stopper portion 5011 and move with the sliding shaft 4; the elastic element 10 is sleeved outside the supporting section 602, one end of the elastic element 10 abuts against the stopping section 5011, and the other end of the elastic element 10 abuts against the stopping section 603; the stop 5011 can be used to form a limit stop for the stop section 603.

That is, the spindle 6 is designed to be movably arranged in a first inner cavity 501 of the main shaft 5, which is movable in the first inner cavity 501. However, the spindle 6 is stopped by the first stopper 5011, so that it does not disengage from the first spindle 5. In this way, the movable range of the slide assembly can be limited.

The core shaft 6 is in threaded connection with the sliding shaft 4, so that the assembly and disassembly are convenient. That is, the spindle 6 and the sliding shaft 4 may be detachably connected to each other.

The mandrel 6 has a three-segment structure, such as the above three-segment structure, that is, the mandrel includes the threaded segment 601, the supporting segment 602, and the stopping segment 603, which are connected in sequence, wherein the threaded segment 601, the supporting segment 602, and the stopping segment 603 have diameters that gradually increase. Both the threaded section 601 and the supporting section 602 can pass through the passage formed in the middle of the stop portion 5011, but the stop portion 603 cannot pass through the passage, so that the stop portion 5011 limits the stop portion and prevents the spindle 6 from being disengaged from the spindle 5 when moving along with the sliding shaft 4.

For example, the threaded section 601, the supporting section 602 and the stopping section 603 are integrally formed to form the mandrel 6.

In some examples of the present application, as shown in fig. 1, 3 and 4, the sliding shaft 4 has a second inner cavity 401 provided along an axial direction thereof;

and, the spindle 6 has a third inner cavity 604 provided along its axial direction;

the second inner cavity 401 is communicated with the third inner cavity 604, and the third inner cavity 604 is further communicated with the first inner cavity 501 of the main shaft 5.

That is to say, after the surgical forceps are assembled, the second inner cavity 401 in the sliding shaft 4 can be communicated with the first inner cavity 501 in the main shaft 5 through the third inner cavity 604 in the core shaft 6, so that a smooth cleaning channel can be formed, and cleaning and disinfection are facilitated, so as to ensure that the surgical forceps are clean.

Wherein, optionally, the diameter of the third inner cavity 604 is smaller than the diameter of the first inner cavity 501 and the second inner cavity 401.

This facilitates the assembly of the sliding shaft 4, the spindle 6 and the spindle 5. In addition, the design helps to create a certain water pressure to flush the lumens.

In some examples of the present application, as shown in fig. 1, 3 and 4, a first through hole 402 is disposed on an end of the sliding shaft 4 away from the main shaft 5, and the first through hole 402 is disposed in communication with the second inner cavity 401; the sleeve 2 is detachably inserted into the first through hole 402; the forceps core 1 sequentially passes through the first through hole 402, the second inner cavity 401 and the third inner cavity 604, extends into the first inner cavity 501 and is connected with the main shaft 5.

Wherein the first through hole 402 is mainly used for connecting the casing 2. Thus, the sleeve 2 and the sliding shaft 4 can be connected together, and the sleeve 2 can be synchronously driven to move when the sliding shaft 4 moves.

It should be noted that the sleeve 2 is detachably inserted into the first through hole 402. When the cannula 2 is detached from the sliding shaft 4, the first through hole 402 is open and is in communication with the second inner cavity 401, and water for cleaning can enter the second inner cavity 401 from the first through hole 402 to flush the second inner cavity 401.

The tweezers core 1 is in a strip-shaped structure, and the tweezers core 1 sequentially penetrates through the sliding shaft 4 and the mandrel 6, finally extends into the first inner cavity 501 of the main shaft 5, and is fixed in the first inner cavity 501, so that the tweezers core 1 is fixed.

The forceps core 1 is not fixed, and the gripping part 101 at the end of the forceps core 1 is retracted into or extended out of the end of the sleeve 2 by the movement of the sleeve 2, so that the free switching between the gripping state and the opening state is realized.

The length of the sleeve 2 is smaller than that of the tweezer core 1, and the sleeve 2 is only sleeved on a local area outside the tweezer core 1. In order to make the moving distance of the sleeve 2 small, the sleeve 2 may be disposed close to the grasping section 101.

Optionally, as shown in fig. 1, 3 and 4, a fixing member 8 is fixedly connected in the first inner cavity 501 of the main shaft 5; one end of the forceps core 1 far away from the clamping part 101 is connected with the fixing part 8. In this way, the forceps core 1 can be connected to the spindle 5.

As shown in fig. 1 and 4, the fixing member 8 is provided with, for example, a through hole 801; one end of the forceps core 1, which is far away from the clamping part 101, penetrates through the through hole 801 and is fixedly connected with the fixing part 8 through a fastening part 9.

The fastening member 9 is, for example, a screw, a nut, a bolt, or the like. This facilitates the removal of the tweezer core from the holder 8.

It should be noted that, besides the above-mentioned fastening means, a fixed connection means such as welding, gluing, etc. may also be adopted, and the application is not limited in particular here.

The through-hole 801 may pass water.

In some examples of the present application, as shown in fig. 1 and 4, a handle 7 is attached to an end of the main shaft 5 remote from the sliding shaft 4.

When a user presses or squeezes the driving part 11 with fingers, the handle 7 can be used for assisting in supporting the hand of the user, so that the surgical forceps have better stability in a clamping state.

Wherein the handle 7 is, for example, a rod-shaped structure.

In addition, the handle 7 may have an anti-slip pattern on the outside to prevent slippage. Thus, the stability of the surgical forceps in use can be improved.

As shown in fig. 1 and 4, a fourth inner cavity 701 is provided in the handle 7, and one end of the fourth inner cavity 701 close to the spindle 5 is communicated with the first inner cavity 501.

Thus, the water flow entering the first interior cavity 501 may also enter the fourth interior cavity 701 to flush the fourth interior cavity 701. This allows for cleaning of the various components that make up the forceps.

In some examples of the present application, as shown in fig. 1 and 3, the forceps further includes a top cover 3, and the top cover 3 is detachably connected to an end of the sliding shaft 4 away from the main shaft 5; moreover, a second through hole 301 is formed in the top cover 3, and the sleeve 2 is detachably inserted into the second through hole 301.

The top cover 3 may be used to enclose the sliding shaft 4 and may be combined with the sliding shaft 4 into one assembly to more stably support the sleeve 2.

A second through hole 301 is formed in the top cover 3 to allow water to pass through and enter the sliding shaft 4.

It should be noted that the diameter of the first through hole 402 of the sliding shaft 4 and the diameter of the second through hole 301 of the top cover 3 may be the same. For example, the diameter dimensions of the first through-hole 402 and the second through-hole 301 are adapted to the diameter dimensions of the sleeve 2.

That is, the sleeve 2 may sequentially pass through the second through hole 301 and the first through hole 402, and the sleeve 2 is connected with the top cover 3 and the sliding shaft 4. Thus, when the sliding shaft 4 moves, the top cover 3 and the sleeve 2 are moved together.

In some examples of the present application, one end of the driving part 11 is detachably connected to the sliding shaft 4, and the other end of the driving part 11 is detachably connected to the main shaft 5.

The driving portion 11 is similar to a housing, and wraps the slide shaft 4 and the main shaft 5.

The driving part 11 is elastically deformed after being pressed or pressed, and is restored to an original state after the pressing or pressing is removed.

For example, as shown in fig. 5, the driving portion 11 includes a plurality of claw pieces, and the plurality of claw pieces surround to form a cage-like structure. Each claw piece can be subjected to elongation deformation along the axial direction of the claw piece.

In some examples of the present application, as shown in fig. 1 and 2, the gripping part 101 includes a plurality of gripping jaws and a connecting part connecting the plurality of gripping jaws; the sleeve 2 moves towards the connecting part, and one ends of the clamping jaws far away from the connecting part can be controlled to approach each other, so that the clamping part 101 is in the clamping state.

The grasping section 101 can be used to stably grasp an inner limiting membrane or other growth promoting membrane in the clamped state.

In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.

Although some specific embodiments of the present application have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. Surgical forceps, comprising:

a sliding assembly;

the sliding assembly is movably connected with the main shaft (5) and can move relative to the main shaft (5);

the tweezers comprise a sleeve (2) and a tweezers core (1), wherein the sleeve (2) is movably sleeved outside the tweezers core (1), the sleeve (2) is connected with the sliding assembly, the tweezers core (1) penetrates through the sliding assembly and is connected with the main shaft (5), one end, far away from the main shaft (5), of the tweezers core (1) is provided with a clamping part (101), and the clamping part (101) is arranged at one end of the sleeve (2); and

the driving part (11), the driving part (11) is sleeved outside the sliding assembly and the main shaft (5), and the driving part (11) has an initial state and a pressing state;

in the initial state of the driving part (11), the clamping part (101) extends out of the sleeve (2), and the clamping part (101) is in an open state;

the driving part (11) can deform along the axial direction of the forceps core (1) and drive the sliding assembly to drive the sleeve (2) to move towards the clamping part (101) in the pressing state, the clamping part (101) can be at least partially retracted into the sleeve (2), and the clamping part (101) is gradually clamped in the opening state.

2. The surgical forceps of claim 1, wherein the sliding assembly comprises: a sliding shaft (4), a core shaft (6) and an elastic element (10);

the main shaft (5) is provided with a first inner cavity (501) arranged along the axial direction of the main shaft; the mandrel (6) is movably arranged in the first inner cavity (501), and the elastic element (10) is sleeved outside the mandrel (6); one end of the sliding shaft (4) is inserted into the first inner cavity (501) and is connected with the mandrel (6);

the spindle (6) is configured to be movable with the sliding shaft (4) relative to the main shaft (5), and the elastic element (10) is used for providing an elastic force for driving the sliding shaft (4) and the spindle (6) to move in a resetting mode.

3. Surgical forceps according to claim 2, characterized in that the elastic element (10) is a spring comprising a first elastic section (1001), a second elastic section (1002) and an intermediate elastic section (1003) connected between the first elastic section (1001) and the second elastic section (1002);

wherein the pitch of the intermediate resilient section (1003) is greater than the pitch of the first resilient section (1001) and the second resilient section (1002).

4. The surgical forceps according to claim 2, wherein a stop (5011) is disposed within the first inner lumen (501);

the mandrel (6) comprises a threaded section (601), a supporting section (602) connected with the threaded section (601), and a stopping section (603) connected with the supporting section (602);

the threaded section (601) is in threaded connection with the sliding shaft (4);

the support section (602) passes through the stop (5011) and can move along with the sliding shaft (4); the elastic element (10) is sleeved outside the supporting section (602), one end of the elastic element (10) is abutted against the stopping section (5011), and the other end of the elastic element (10) is abutted against the stopping section (603);

the stop (5011) can be used to form a limit stop for the stop section (603).

5. Surgical forceps according to claim 2, characterized in that the sliding shaft (4) has a second inner chamber (401) arranged in its axial direction;

the mandrel (6) is provided with a third inner cavity (604) arranged along the axial direction of the mandrel;

the second inner cavity (401) is communicated with the third inner cavity (604), and the third inner cavity (604) is communicated with the first inner cavity (501) of the main shaft (5).

6. The surgical forceps according to claim 5, wherein a first through hole (402) is formed in one end of the sliding shaft (4) far away from the main shaft (5), and the first through hole (402) is communicated with the second inner cavity (401);

the sleeve (2) is detachably inserted into the first through hole (402);

the forceps core (1) sequentially penetrates through the first through hole (402), the second inner cavity (401) and the third inner cavity (604) to extend into the first inner cavity (501) and be connected with the main shaft (5).

7. Surgical forceps according to claim 2, characterized in that a handle (7) is connected to the end of the main shaft (5) remote from the sliding shaft (4);

a fourth inner cavity (701) is arranged in the handle (7), and one end, close to the main shaft (5), of the fourth inner cavity (701) is communicated with the first inner cavity (501).

8. Surgical forceps according to any one of claims 1 to 7, further comprising: the top cover (3) is detachably connected with one end, far away from the main shaft (5), of the sliding shaft (4);

the top cover (3) is provided with a second through hole (301), and the sleeve (2) is detachably inserted into the second through hole (301).

9. Surgical forceps according to claim 1, characterized in that one end of the drive part (11) is detachably connected to the sliding shaft (4) and the other end of the drive part (11) is detachably connected to the main shaft (5).

10. The surgical forceps according to claim 1, wherein the clamping portion (101) comprises: a plurality of jaws and a connecting portion connecting the plurality of jaws;

the sleeve (2) moves towards the connecting part, and one ends, far away from the connecting part, of the clamping jaws can be controlled to be close to each other.