Surgical operating instrument capable of being clamped independently

Abstract

The utility model discloses a surgical operating instrument capable of independently clamping, relates to the technical field of medical instruments, and aims to solve the problem that clamping and percussion of an existing tissue clamp cannot be independently carried out. The instrument comprises a fixed handle movably connected with a percussion handle, and a push rod is arranged in an inner cavity of the fixed handle; one end of the push rod is connected with an inner cavity of the fixed handle through a first elastic piece, the other end of the push rod is connected with the clamping assembly, a push block is arranged at the end, connected with the first elastic piece, of the push rod, the upper clamping buttons are arranged on the two sides of the fixed handle and connected with the push block, and the outer cylinder push column is arranged on the periphery of the push rod in a sleeving mode and movably connected with the push rod. The end, close to the push rod, of the outer cylinder push column is provided with a protrusion, the outer cylinder push column is provided with a second elastic piece used for making the outer cylinder push column abut against the percussion handle, the bottom of the limiting cover plate is provided with a limiting structure matched with the push block and a wedge-shaped block matched with the protrusion, and the limiting cover plate abuts against the push block and the protrusion through a third elastic piece. And clamping and percussion of the tissue clamp can be carried out step by step.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, relate to a kind of surgical instruments that can be individually up clamped. BACKGROUND

[0002] In the surgical operation process, the lumen tissue such as blood vessel and bile duct in the body needs to be disconnected, and the lumen tissue must be closed before disconnection to prevent blood or other body fluids from flowing out. In endoscopic surgery, tissue clips are used to ligate and close blood vessels and body cavity tissues during human surgery to ensure safety and effectiveness during the operation. The clip applier is a surgical instrument mainly used for clamping and closing operation of ligature clips (or "tissue clips") in surgical operations.

[0003] The existing continuous firing clip applier can continuously fire multiple tissue clips, and is more flexible to operate during the operation, which can improve the operation efficiency. However, the tissue clips of the existing continuous firing clip applier are simultaneously clamped and fired, which can easily cause the situation that the previous tissue clip is not completely closed and the next tissue clip is already ejected during use, which has certain medical risks.

[0004] Therefore, how to solve the problem that the clamping and firing of the existing tissue clip cannot be performed individually is a problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0005] Therefore, the utility model aims at providing a kind of surgical instruments that can be individually up clamped, which can realize the step-by-step clamping and firing of tissue clip.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A surgical instrument that can be individually up clamped, comprising:

[0008] A fixed handle is movably connected with a firing handle;

[0009] A push rod is arranged in the inner cavity of the fixed handle, one end of the push rod is connected with the inner cavity of the fixed handle through a first elastic member, the other end of the push rod is connected with a clamping assembly, and the end of the push rod connected with the first elastic member is provided with a push block;

[0010] An up-clamping button is arranged on both sides of the fixed handle and connected with the push block;

[0011] An outer cylinder push column is sleeved on the outer periphery of the push rod and movably connected with the push rod, one end of the outer cylinder push column close to the push rod is provided with a protrusion, the outer cylinder push column is pushed by pressing the firing handle, and the outer cylinder push column is provided with a second elastic member for abutting the firing handle;

[0012] The bottom of the limiting cover plate is provided with a limiting structure matched with the push block and a wedge matched with the protrusion, and the limiting cover plate is abutted with the push block and the protrusion through the third elastic element.

[0013] Preferably, the center lines of the limiting structure and the wedge are arranged in line with the center line of the limiting cover plate.

[0014] Preferably, the limiting structure comprises a plurality of inclined teeth, and the plurality of inclined teeth are arranged at equal intervals along the length direction of the limiting cover plate.

[0015] Preferably, the end face of the inclined tooth opposite to the wedge is a vertical plane perpendicular to the limiting cover plate, the end face of the inclined tooth away from the wedge is an inclined plane, and the vertical plane and the inclined plane are transitioned through an arc chamfer.

[0016] Preferably, the middle part of the push block is provided with a circular hole connected with the push rod, the top of the push block is provided with a stand column, the stand column is provided with a stepped portion, the stepped surface of the stepped portion is matched with the vertical plane of the inclined tooth, and the two sides of the push block are provided with positioning pins connected with the upper clamping button.

[0017] Preferably, the wedge and the inclined tooth are consistent in shape, and the end face of the protrusion in contact with the wedge is arranged as a wedge surface consistent with the inclination of the wedge.

[0018] Preferably, the third elastic element is a spring, and the spring is a Z-shaped structure.

[0019] Preferably, the top of the limiting cover plate is provided with a limiting groove for limiting the movement track of the spring, a plurality of positioning columns are arranged in the limiting groove, a connecting hole corresponding to the positioning column is arranged on the spring, and the positioning column is arranged in the connecting hole in a pullable and insertable manner.

[0020] Preferably, the clamping assembly comprises a connecting rod group, an outer cylinder and a clamping forceps, one end of the connecting rod group is connected with the push rod, the other end of the connecting rod group is connected with the clamping forceps, the outer cylinder is movably sleeved on the outer periphery of the connecting rod group, and one end of the outer cylinder is connected with the outer cylinder push column.

[0021] Preferably, the first elastic element and the second elastic element are both springs.

[0022] The surgical instrument capable of separate upper clamping comprises a fixed handle, a firing handle, a push rod, an upper clamping button, an outer cylinder push column and a limiting cover plate, specifically, the push rod is arranged in the inner cavity of the fixed handle, one end of the push rod is connected with the inner cavity of the fixed handle through the first elastic element, the other end of the push rod is connected with the clamping assembly, one end of the push rod connected with the first elastic element is provided with a push block, the upper clamping button is arranged on the two sides of the fixed handle and connected with the push block, by pushing the upper clamping button, the push block overcomes the pulling force of the first elastic element in the process of moving the upper clamping button to the direction close to the clamping assembly, thereby driving the push rod and the clamping assembly to move synchronously, and the upper clamping movement of the clamping assembly is realized.

[0023] The outer cylinder push column is sleeved on the outer periphery of the push rod and movably connected with the push rod, and is provided with a second elastic member for abutting the outer cylinder push column with the firing handle, so that the outer cylinder push column always abuts with the firing handle under the action of the second elastic member during the process of moving the push rod to the direction of approaching the clamping assembly by pushing the upper clamping button, and the outer cylinder push column will not move, thereby realizing the separate upper clamping movement of the clamping assembly.

[0024] The bottom of the limiting cover plate is provided with a limiting structure matched with the push block and a wedge-shaped block matched with the protrusion, the limiting cover plate abuts with the push block and the protrusion through a third elastic member, when the clamping assembly completes the upper clamping movement by pushing the upper clamping button, the push block is clamped with the limiting structure to lock the position of the push block and prevent the push block from moving reversely under the action of the pulling force of the first elastic member, when the firing movement is completed by pressing the firing handle, the protrusion abuts with the wedge-shaped block, the limiting cover plate is moved upward to make the push block disengage from the limiting structure on the limiting cover plate through the cooperation of the protrusion and the wedge-shaped block, and the push rod returns to the initial position under the action of the pulling force of the first elastic member, at this time, the clamping assembly realizes the closure of the tissue clamp, the firing handle is released, and the firing handle returns to the initial position under the action of the force of the second elastic member, thereby completing the whole upper clamping and firing process of the instrument.

[0025] The limiting structure of the limiting cover plate can lock the push block in the movement process, and the wedge-shaped block of the limiting cover plate can unlock the push block, so that the upper clamping and firing of the instrument are performed step by step. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0027] Figure 1 A structure diagram of the surgical instrument capable of separate upper clamping provided by the present application is shown in the figure.

[0028] Figure 2 A local expanded view of the surgical instrument capable of separate upper clamping provided by the present application is shown in the figure.

[0029] Figure 3 A local exploded view of the surgical instrument capable of separate upper clamping provided by the present application is shown in the figure.

[0030] Figure 4 The exploded view of the surgical instrument capable of being individually clamped provided by the utility model;

[0031] Figure 5 The structure diagram of the limiting cover plate provided by the utility model;

[0032] Figure 6 The structure diagram of the push block provided by the utility model.

[0033] Reference signs:

[0034] 1-fixed handle;2-firing handle;3-push rod;4-first elastic member;5-clamping assembly, 51-connection rod group, 52-outer cylinder, 53-clamping forceps;6-push block, 61-stand column, 62-positioning pin;7-upper clamping button;8-outer cylinder push column, 81-protrusion;9-second elastic member;10-limiting cover plate, 101-limiting structure, 102-wedge block, 103-positioning column;11-third elastic member. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0036] In the utility model, unless explicitly defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, or electrical connection;Can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] It should be noted that the orientation words such as "upper" in the following are defined based on the drawings of the specification.

[0038] The core of the utility model is to provide a kind of surgical instrument capable of being individually clamped, which can realize the upper clamping and firing of tissue clamp step by step.

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 5The surgical instrument capable of independent clamping comprises a fixed handle 1, a firing handle 2, a push rod 3, a clamping button 7, an outer cylinder push column 8 and a limiting cover plate 10.

[0040] Specifically, the push rod 3 is arranged in the inner cavity of the fixed handle 1, one end of the push rod 3 is connected with the inner cavity of the fixed handle 1 through the first elastic element 4, the other end of the push rod 3 is connected with the clamping assembly 5, the end of the push rod 3 connected with the first elastic element 4 is provided with a push block 6, the clamping button 7 is arranged on the two sides of the fixed handle 1 and connected with the push block 6, by pushing the clamping button 7, the push block 6 overcomes the pulling force of the first elastic element 4 in the process of moving towards the clamping assembly 5, and then drives the push rod 3 and the clamping assembly 5 to move synchronously, so that the clamping movement of the clamping assembly 5 is realized.

[0041] The outer cylinder push column 8 is sleeved on the outer periphery of the push rod 3 and movably connected with the push rod 3, the outer cylinder push column 8 is provided with the second elastic element 9 for abutting the outer cylinder push column 8 with the firing handle 2, in the process of moving the push rod 3 towards the clamping assembly 5 by pushing the clamping button 7, the outer cylinder push column 8 is always in abutment with the firing handle 2 under the action of the second elastic element 9 and cannot move, so that the independent clamping movement of the clamping assembly 5 is realized, the fixed handle 1 is movably connected with the firing handle 2, one end of the outer cylinder push column 8 close to the push rod 3 is provided with a protrusion 81, the outer cylinder push column 8 is pushed by pressing the firing handle 2, when the clamping movement of the clamping assembly 5 is completed, the firing handle 2 is abutted with the protrusion 81 of the outer cylinder push column 8 by pressing the firing handle 2, and the outer cylinder push column 8 is moved towards the clamping assembly 5.

[0042] The bottom of the limiting cover plate 10 is provided with a limiting structure 101 matched with the push block 6 and a wedge block 102 matched with the protrusion 81, the limiting cover plate 10 is abutted with the push block 6 and the protrusion 81 through the third elastic element 11, in the process of completing the clamping movement of the clamping assembly 5 by pushing the clamping button 7, the push block 6 is clamped with the limiting structure 101 to lock the position of the push block 6, so as to prevent the push block 6 from moving reversely under the action of the pulling force of the first elastic element 4; when the firing movement is completed by pressing the firing handle 2, the protrusion 81 is abutted with the wedge block 102, the limiting cover plate 10 is moved upwards by overcoming the elastic force of the third elastic element 11 through the cooperation of the protrusion 81 and the wedge block 102, so that the push block 6 is separated from the limiting structure 101 on the limiting cover plate 10, the push rod 3 returns to the initial position under the action of the pulling force of the first elastic element 4, at this time, the clamping assembly 5 realizes the closure of the tissue clamp, the firing handle 2 is released, the firing handle 2 returns to the initial position under the action of the force of the second elastic element 9, and the clamping and firing processes of the whole instrument are completed.

[0043] The surgical instrument is simple in operation, and only needs to manually push the upper clamping button 7 to realize the upper clamping movement of the clamping assembly 5, press the firing handle 2, and the upper clamping button 7 can automatically return to the initial position after the clamping assembly 5 is closed, and the firing handle 2 can also automatically return to the initial position under the elastic force of the second elastic element 9 in the outer cylinder push column 8.

[0044] Among them, the fixed handle 1, the firing handle 2, the upper clamping button 7 and the limiting cover plate 10 are plastic parts, so as to reduce the overall weight and achieve the effect of light quality.

[0045] The surgical instrument arranged in the above manner, the limiting structure 101 of the limiting cover plate 10 can lock the push block 6 in the movement process, and the wedge-shaped block 102 of the limiting cover plate 10 can unlock the push block 6, so that the upper clamping and firing of the instrument are carried out step by step.

[0046] In the above embodiment, the center lines of the limiting structure 101 and the wedge-shaped block 102 are arranged in line with the center line of the limiting cover plate 10.

[0047] It should be noted that the center lines of the limiting structure 101, the wedge-shaped block 102 and the limiting cover plate 10 are arranged in line to ensure the balance and stability of the limiting cover plate 10, avoid the problem of unstable movement of the push block 6 due to the asymmetry of itself, and thus affect the effect of upper clamping and firing.

[0048] Among them, in order to ensure the effective cooperation of the push block 6 and the limiting structure 101, and the effective cooperation of the outer cylinder push column 8 and the wedge-shaped block 102, the center lines of the limiting structure 101, the wedge-shaped block 102 and the limiting cover plate 10 are arranged in line.

[0049] Please refer to Figure 5 and Figure 6 The limiting structure 101 includes a plurality of inclined teeth, and the plurality of inclined teeth are arranged at equal intervals along the length direction of the limiting cover plate 10.

[0050] It can be understood that the inclined teeth on the limiting cover plate 10 can form an interlocking structure with the vertical column 61 on the push block 6, the inclined teeth can lock the push block 6 in the movement process, and the wedge-shaped block 102 can unlock the push block 6, so as to ensure that the upper clamping and firing of the surgical instrument are carried out step by step.

[0051] Further, the end face opposite to the wedge-shaped block 102 of the inclined tooth is a vertical plane perpendicular to the limiting cover plate 10, and the end face away from the wedge-shaped block 102 of the inclined tooth is an inclined surface, and the vertical plane and the inclined surface are transitioned through an arc chamfer.

[0052] It should be noted that when the upper clamping button 7 is pushed to move towards the clamping assembly 5, the push block 6 overcomes the pulling force of the first elastic member 4, and then drives the push rod 3 and the clamping assembly 5 to move synchronously, so as to realize the upper clamping movement of the clamping assembly 5. At the same time, the column 61 of the push block 6 moves along the inclined surface of the inclined tooth towards the clamping assembly 5, and the column 61 of the push block 6 can be limited by the vertical plane of any inclined tooth to avoid the movement of the push block 6 away from the clamping assembly 5, that is, the push block 6 is limited by the vertical plane to prevent the push block 6 from moving backward, and the arc-shaped chamfer transition is arranged between the inclined surface and the vertical plane to enable the column 61 of the push block 6 to move smoothly from one inclined tooth to another, avoid serious wear of the column 61 during the movement of the push block 6, reduce the frictional resistance, and save labor.

[0053] In the above embodiment, the middle part of the push block 6 is provided with a circular hole connected with the push rod 3, the top part of the push block 6 is provided with a column 61, the column 61 is provided with a stepped part, the stepped surface of the stepped part is matched with the vertical plane of the inclined tooth, and the two sides of the push block 6 are provided with positioning pins 62 connected with the upper clamping button 7.

[0054] It can be understood that the upper clamping button 7 is connected with the push block 6, and the push block 6 is driven to move synchronously by pushing the upper clamping button 7, so as to drive the push rod 3 to move synchronously. The end of the push block 6 close to the clamping assembly 5 is provided with a column 61, so that the stepped surface of the stepped part on the column 61 can be matched with the vertical plane of the inclined tooth, so as to lock the push block 6, so that the upper clamping button 7 can be locked by any inclined tooth during the upper clamping process, and the stable clamping step is ensured.

[0055] On the basis of the above embodiment, the wedge-shaped block 102 is consistent with the shape of the inclined tooth, and the end surface of the protrusion 81 in contact with the wedge-shaped block 102 is provided with a wedge-shaped surface consistent with the slope of the wedge-shaped block 102.

[0056] It should be noted that during the upper clamping process of the upper clamping button 7, the outer cylinder push column 8 is always in abutment with the firing handle 2 under the action of the second elastic member 9 and cannot move. The end of the outer cylinder push column 8 close to the push rod 3 is provided with a protrusion 81. When the firing handle 2 is pressed to rotate, the protrusion 81 of the outer cylinder push column 8 is in abutment with the firing handle 2, and the outer cylinder push column 8 is driven to move towards the clamping assembly 5. The protrusion 81 contacts the wedge-shaped block 102 and lifts the wedge-shaped block 102, so that the limiting cover plate 10 can move upwards against the elastic force of the third elastic member 11, and the stepped part on the column 61 of the push block 6 can be separated from the vertical plane of the inclined tooth. The push block 6 is not limited by the inclined tooth, and the push rod 3 returns to the initial position under the action of the pulling force of the first elastic member 4, and drives the push block 6 to return to the initial position. The clamping assembly 5 realizes the closure of the tissue clamp.

[0057] In the above embodiment, the third elastic member 11 is a spring sheet, and the spring sheet has a Z-shaped structure.

[0058] It can be understood that the third elastic member 11 is provided as a spring sheet to make the elastic pre-tightening force borne by the limiting cover plate 10 more balanced and ensure the stability of the limiting cover plate 10 during movement. The spring sheet should not be too thick or too thin (related to the spring force of the spring sheet), and should be set according to the actual force bearing condition.

[0059] In actual application, the specific type and shape of the third elastic member 11 are not limited as long as the above technical effects can be achieved.

[0060] As a preferred embodiment, the top of the limiting cover plate 10 is provided with a limiting groove for limiting the moving track of the spring sheet, a plurality of positioning columns 103 are arranged in the limiting groove, a connecting hole corresponding to the positioning columns 103 is arranged on the spring sheet, and the positioning columns 103 are arranged in the connecting hole in a pull-in and pull-out manner.

[0061] It should be noted that the limiting groove is arranged on the limiting cover plate 10 to avoid the spring sheet from being separated from the limiting cover plate 10 during movement and to play a certain guiding role. The positioning columns 103 are arranged on the limiting cover plate 10, and the connecting hole is arranged on the spring sheet to achieve effective positioning of the spring sheet and the limiting cover plate 10, avoid the spring sheet from deviating during movement, and improve the stability of the movable connection between the spring sheet and the limiting cover plate 10.

[0062] In the above embodiment, the first elastic member 4 and the second elastic member 9 are both springs.

[0063] In actual application, the specific type and shape of the first elastic member 4 and the second elastic member 9 are not limited as long as the above technical effects can be achieved.

[0064] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the clamping assembly 5 includes a connecting rod group 51, an outer cylinder 52 and a clamping jaw 53, one end of the connecting rod group 51 is connected with the push rod 3, the other end of the connecting rod group 51 is connected with the clamping jaw 53, the outer cylinder 52 is movably sleeved on the outer periphery of the connecting rod group 51, and one end of the outer cylinder 52 is connected with the outer cylinder push column 8.

[0065] It can be understood that the outer cylinder 52 is internally provided with the outer cylinder push column 8, the protrusion 81 of the outer cylinder push column 8 is in contact with one end of the firing handle 2, the outer cylinder push column 8 is internally provided with the push rod 3, the push rod 3 is provided with the push block 6, the end of the push rod 3 is connected with the shell of the fixed handle 1 through the first elastic member 4, the vertical column 61 on the push block 6 is in contact with the limiting cover plate 10, one end of the spring sheet is in contact with the limiting cover plate 10, and the other end is in contact with the shell of the fixed handle 1, and the limiting cover plate 10 is fixed in the shell of the fixed handle 1 through the elastic force of the spring sheet.

[0066] In use, the upper clamping button 7 is pushed to move towards the clamping jaw 53, driving the push block 6 to move, which will overcome the pulling force of the first elastic member 4, and then drive the push rod 3 to move, in the process of movement, the post 61 on the push block 6 will be clamped into the inclined teeth on the limiting cover plate 10, preventing the push block 6 from moving reversely under the action of the pulling force of the first elastic member 4, and playing a certain locking effect on the push block 6, when the push block 6 moves to the end of the inclined teeth, the push rod 3 will drive the connecting rod set 51 to move to the position of the clamping jaw 53, the connecting rod set 51 is provided with a plurality of tissue clamps, realizing the separate upper clamping movement of the tissue clamps, after the upper clamping is completed, the firing handle 2 is pressed, the outer cylinder push post 8 is driven to move towards the clamping jaw 53, and moves to the wedge-shaped block 102 of the limiting cover plate 10, the protrusion 81 on the outer cylinder push post 8 is in contact with the wedge-shaped block 102, the limiting cover plate 10 is driven to move upwards to overcome the elastic force of the elastic sheet, the inclined teeth on the limiting cover plate 10 are separated from the post 61, and the push rod 3 will return to the initial position under the action of the pulling force of the first elastic member 4, at this time, the outer cylinder 52 moves to the end of the clamping jaw 53, realizing the closing of the clamping jaw 53, the firing handle 2 is released, and the firing handle 2 returns to the initial position under the action force of the spring in the outer cylinder push post 8, and the whole upper clamping and firing process of the instrument is completed.

[0067] In conclusion, the surgical instrument capable of separate upper clamping provided by the utility model realizes the separate upper clamping and firing of the tissue clamps, the linkage interlocking device is arranged between the upper clamping button 7 and the firing handle 2, the stable upper clamping and firing of the tissue clamps are ensured, and the safety and effectiveness in the surgical process are ensured.

[0068] It should be noted that the relational terms herein such as first and second, and the like, are used solely to distinguish one from another entity without necessarily implying any actual relationship or order between such entities.

[0069] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0070] The surgical instrument capable of separate upper clamping provided by the utility model is described in detail. The principle and implementation mode of the utility model are described by applying specific examples in the paper, and the description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary technical personnel in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A surgical instrument which can be individually clamped, characterized in that, The utility model relates to a kind of fixed handle (1), the fixed handle (1) is movably connected with firing handle (2);Push rod (3) is arranged in the inner cavity of the fixed handle (1), one end of the push rod (3) is connected with the inner cavity of the fixed handle (1) by first elastic element (4), the other end of the push rod (3) is connected clamping assembly (5), and the one end of the push rod (3) is equipped with push block (6) with the first elastic element (4) connection;Upper clamping button (7) is arranged in the both sides of the fixed handle (1), and is connected with the push block (6);Outer cylinder push column (8) is sleeved on the outer periphery of the push rod (3) and is movably connected with the push rod (3), and the one end of the outer cylinder push column (8) is equipped with protrusion (81) close to the push rod (3), and the outer cylinder push column (8) is pushed by pressing the firing handle (2) to drive the outer cylinder push column (8), and the outer cylinder push column (8) is equipped with second elastic element (9) for making the outer cylinder push column (8) and the firing handle (2) abut;Limiting cover plate (10), the bottom of the limiting cover plate (10) is equipped with limiting structure (101) matched with the push block (6), and wedge block (102) matched with the protrusion (81), and the limiting cover plate (10) is abutted with the push block (6), the protrusion (81) by third elastic element (11). The center line of the limiting structure (101) and the wedge block (102) is arranged in line with the center line of the limiting cover plate (10). The limiting structure (101) includes several inclined teeth, and the several inclined teeth are arranged at equal intervals along the length direction of the limiting cover plate (10). The end face opposite to the wedge block (102) of the inclined tooth is a vertical plane perpendicular to the limiting cover plate (10), the end face away from the wedge block (102) of the inclined tooth is an inclined surface, and the vertical plane and the inclined surface are transitioned by arc chamfer. The middle part of the push block (6) is equipped with a circular hole connected with the push rod (3), the top of the push block (6) is equipped with a stand (61), the stand (61) is equipped with a stepped portion, the stepped surface of the stepped portion is attached to the vertical plane of the inclined tooth, and the two sides of the push block (6) are equipped with positioning pins (62) connected with the upper clamping button (7). The wedge block (102) is consistent with the shape of the inclined tooth, and the end face of the protrusion (81) in contact with the wedge block (102) is set as a wedge surface consistent with the inclination of the wedge block (102).

2. The individually clampable surgical instrument of claim 1, wherein, The third elastic element (11) is a spring sheet, and the spring sheet is a Z-shaped structure.

3. The individually clampable surgical instrument of claim 2, wherein, The top of the limiting cover plate (10) is equipped with a limiting groove for limiting the movement track of the spring sheet, a plurality of positioning columns (103) are arranged in the limiting groove, a connecting hole corresponding to the positioning column (103) is arranged on the spring sheet, and the positioning column (103) is removably arranged in the connecting hole.

4. The individually clampable surgical instrument of claim 3, wherein, ​ 5. The individually clampable surgical instrument of claim 4, wherein, ​ 6. The individually clampable surgical instrument of claim 4, wherein, ​ 7. The individually clampable surgical instrument of claim 1, wherein, ​ 8. The individually clampable surgical instrument of claim 7, wherein, ​ 9. The self-clamping surgical device of any of claims 1-8, wherein, The clamping assembly (5) comprises a connecting rod group (51), an outer cylinder (52) and a clamping jaw (53), one end of the connecting rod group (51) is connected with the push rod (3), the other end of the connecting rod group (51) is connected with the clamping jaw (53), the outer cylinder (52) is movably sleeved on the outer periphery of the connecting rod group (51), and one end of the outer cylinder (52) is connected with the outer cylinder push column (8).

10. The self-clamping surgical device according to any one of claims 1-8, wherein, The first elastic member (4) and the second elastic member (9) are both springs.

Images