CN118236122A - Double-slider type clamp head mechanism and surgical instrument - Google Patents

Abstract

The invention discloses a double-slider type binding clip mechanism and a surgical instrument, which comprise a jaw seat, an opening sliding sleeve, a closing sliding block, a first jaw and a second jaw, wherein the jaws are connected with a base plate, and the opening sliding sleeve and the closing sliding block are respectively connected with a traction rope through the rotating connection of the jaws and the base plate, so that the opening sliding sleeve and the closing sliding block are driven to move in the jaw seat to control the opening and the closing of the jaws when the traction rope moves.

Description

Double-slider type clamp head mechanism and surgical instrument

Technical Field

The invention relates to the technical field of medical machinery, in particular to a double-slider type forceps head mechanism and a surgical instrument.

Background

In the minimally invasive surgery operation process, a surgeon makes 2-4 small incisions of 5-10 mm on the body surface of a patient, inserts required surgical instruments into the abdominal cavity through the small incisions on the body surface of the patient, performs surgery operations such as cutting and clamping on focus tissue organs, and the like, and the operation mode enables the surgical instruments to move only in a narrow inverted-cone-shaped working space taking the incisions as vertexes. In patent CN102905627a there is provided a surgical instrument comprising an instrument shaft having a proximal end and a distal end; a jaw body disposed from a distal end of the instrument shaft; a control handle coupled from a proximal end of the instrument shaft; a distal bendable member for coupling a distal end of the instrument shaft to the forceps body; a proximal bendable member for coupling a proximal end of the instrument shaft to the control handle; an actuation means extending between the distal and proximal bendable members for coupling movement of the proximal bendable member to the distal bendable member to control positioning of the forceps body; and the locking mechanism is used for fixing the position of the clamp body at a selected position. The locking mechanism includes: a ball-and-socket arrangement disposed about the proximal bendable member; and a locking member for locking the ball-and-socket device, the locking member having a locked and an unlocked state.

The distal and proximal bendable members must have a corresponding length of flexible structure to control the opening and closing of the jaws due to the presence of the movable joints, resulting in the actuation cable being able to transmit pulling forces, but the actuation cable being flexible and having a relatively weak ability to transmit pushing forces. Therefore, the forceps body of the flexible instrument can only clamp tissues and can not prop open the tissues. For example, CN102905627a cannot realize the function of separating the forceps, scissors and other instruments requiring a certain opening force.

Disclosure of Invention

Aiming at the problems, the invention provides the slider type clamp head mechanism, and the opening and closing actions of the clamp jaws are controlled through the cooperation of the trigger motion and the slider and the traction rope, so that the control is convenient, the structure is simple, and the degree of freedom is high.

In order to achieve the above-mentioned purpose, the invention provides a double-slider type binding clip mechanism, which comprises a jaw seat, an opening sliding sleeve, a closing sliding block, a first binding clip and a second binding clip, wherein the jaw seat is connected to the distal end of a shaft tube through a distal snakelike joint, the jaw seat is provided with a passage penetrating through the distal end, the opening sliding sleeve is arranged in the passage and can slide along the distal and proximal directions, the opening sliding sleeve is provided with a slideway penetrating through the distal end, the closing sliding block is sleeved in the slideway and can slide along the distal and proximal directions of the slideway, the distal ends of the opening sliding sleeve and the closing sliding block are respectively provided with a strip-shaped hole extending along the distal and proximal directions, the distal end of the closing sliding block is divided into a left tongue and a right tongue by the strip-shaped part Kong Fen, the distal end of the opening sliding sleeve is divided into an upper tongue and a lower tongue which are not connected up and down by the slideway, the proximal end of the opening sliding sleeve is in an annular structure, the distal end of the jaw seat is provided with a pin shaft, the pin is arranged on the distal end of the jaw seat and the strip-shaped hole and can slide along the distal direction, the opening end of the opening sliding sleeve is perpendicular to the opening end of the strip-shaped hole, the first binding clip is sleeved in the distal end, the proximal end of the opening sliding jaw and the opening sliding jaw is provided with a pin shaft, the opening tongue is connected with the strip-shaped tongue, the opening tongue is arranged along the distal and the opening tongue, and the opening tongue is provided with the opening pulling a pulling rope, and the opening tongue is arranged between the pulling and the pulling rope and can be arranged.

Preferably, the distal end of the closing slide block is configured as a flat ear plate, the proximal ends of the first clamp claw and the second clamp claw are respectively provided with a basal disc, the ear plate stretches into the space between the opposite sides of the two basal discs, the ear plate is divided into a left tongue and a right tongue by a strip-shaped hole, the front and the back of the ear plate facing the two basal discs are respectively provided with a first pivoting structure mutually embedded with the basal discs, and the two first pivoting structures are symmetrically arranged on the left tongue and the right tongue relative to the strip-shaped hole;

The upper tongue and the lower tongue of the open sliding sleeve are respectively arranged on one side of the two base plates, which are opposite to the upper tongue and the lower tongue, respectively, the base plates are provided with a second pivot structure which is embedded into each other, the two second pivot structures are symmetrical relative to the strip-shaped holes, and the first pivot structure and the second pivot structure are symmetrical relative to the strip-shaped holes.

Preferably, the opposite sides of the first clamp claw and the second clamp claw are perpendicular to the base plate.

Preferably, the front and back sides of the lug plates facing the two base plates are respectively provided with a convex table I which is mutually embedded with the base plates, the two base plates are provided with a notch I which can be mutually embedded with the convex table I, and the convex table I and the notch I form a first pivoting structure;

The two base plates are respectively provided with a convex platform II which faces the upper tongue and the lower tongue at the positions symmetrical to the center of the first notch, and the upper tongue and the lower tongue are respectively provided with a second notch which can be mutually embedded with the convex platform II.

Preferably, the length of the upper tongue and the lower tongue in the distal-proximal direction is greater than the diameter of the base plate.

Preferably, the thickness of the ear plate is smaller than that of the closing slide block, and the length of the ear plate along the far and near direction is larger than the diameter of the base plate.

Preferably, a through hole is centrally arranged on the base plate, and the cross section of the through hole is circular.

Preferably, the proximal ends of the opening sliding sleeve and the closing sliding block are provided with threading holes, and the opening sliding sleeve and the closing sliding block are respectively connected with the traction rope and the traction rope through the threading holes.

A surgical instrument, comprising: the double-slider type clamp head mechanism comprises a clamp head and a clamp head, wherein the clamp head is arranged on the clamp head and is provided with a clamping head and a clamping head, and the clamping head is arranged on the clamping head and is provided: the handle comprises a pistol grip and an actuating rod, wherein the base part of the grip is connected with the proximal end part of the shaft tube, the root part of the grip is far away from the proximal end of the shaft tube, a reel and a spring are respectively arranged at the base part and the root part in the grip, the upper part of the actuating rod is pivotally attached between the reel and the spring at the base part of the grip, one end of the spring is connected with the root part of the grip, the other end of the spring faces the base part of the grip and is connected with the upper part of the actuating rod, the reel is parallel to the rotation plane of the actuating rod and is arranged at the base part of the grip, the other end of the pulling rope passes through the proximal end part of the shaft tube and the base part of the grip, the pulling rope is respectively connected with a first side, close to the shaft tube, and a second side, close to the spring, of the second side of the actuating rod is enabled to be close to the reel when the second side of the actuating rod is deflected to the root part, and the second side of the actuating rod is far away from the reel;

the actuating ropes are arranged, extend in the far-end snake-shaped joint and are uniformly distributed around the axis of the far-end snake-shaped joint, one end of each actuating rope is connected with the far end of the far-end snake-shaped joint, and the other end of each actuating rope is connected with a traction mechanism in a handle so as to control the positioning of the jaw seat;

further, the traction mechanism is replaced with a proximal serpentine joint for coupling the proximal end of the shaft tube to the handle;

A locking mechanism for securing the position of the jaw mount in a selected position;

the locking mechanism includes a ball and socket arrangement disposed about the proximal serpentine joint, a locking member for locking the ball and socket arrangement, the locking member having a locked state and a non-locked state;

The ball-and-socket device includes a compression ring supported from the handle, having an exterior surface for supporting the locking member about the locking member, and having an interior surface defining an at least partially spherical socket;

the ball-and-socket device further comprises: a hollow ball member having an interior cavity and an at least partially spherical exterior surface, the at least partially spherical exterior surface of the hollow ball member mating with the at least partially spherical socket;

The actuation cords extend between and are uniformly distributed about the axes of the distal and proximal serpentine joints, the actuation cords having one end connected to the distal end of the distal serpentine joint and the other end constrained when passing the proximal end of the proximal serpentine joint for coupling movement of the proximal serpentine joint to the distal serpentine joint for controlling positioning of the jaw mount.

According to the invention, through the movement of the sliding block in the jaw seat, the rotary connection of the sliding block and the clamp claw and the cooperation of the sliding block and the traction rope, the opening and closing of the jaw can be controlled through the movement of the trigger, and the angle is controllable, so that the structure is simple and easy to control.

Drawings

FIG. 1 is a schematic view of the proximal end of an instrument;

FIG. 2 is an overall schematic of the instrument;

FIG. 3 is a schematic view of a dual slider binding clip mechanism according to the present invention;

FIG. 4 is a schematic view of a jaw base of a dual slider jaw mechanism of the present invention;

FIG. 5 is a cross-sectional view of a dual slider binding clip mechanism of the present invention;

FIG. 6 is a schematic view of a closure slider;

FIG. 7 is a schematic view of an expanded sliding sleeve;

FIG. 8 is a schematic view of the dual slider binding clip mechanism of the present invention;

FIG. 9 is a schematic closing view of a dual slider binding clip mechanism of the present invention;

FIG. 10 is a schematic view of a first jaw of the present invention;

FIG. 11 is a schematic view of a second jaw according to the present invention;

FIG. 12 is a proximal cross-sectional view of the surgical instrument of the present invention;

FIG. 13 is a cross-sectional view of the locking member of FIG. 12;

fig. 14 is an exploded view of the proximal serpentine joint of fig. 12.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure. The front cone refers to the small end face of the bevel gear, and the proximal end or the side of the needle holding stitching instrument, which is close to a person when the user holds the needle holding stitching instrument, is far away from the person when the user holds the needle holding stitching instrument.

As used herein, relative terms such as "below," "lower," "above," and "upper" may be used to describe one element's relationship to another element as illustrated in a set of drawings. Such relative terms are intended to encompass different orientations of the illustrated technology in addition to the orientation depicted in the set of drawings. For example, if the device in a set of drawings is turned over, elements described as being on the "lower" side of other elements would then be oriented on the "upper" side of the other elements. Similarly, if one device in the figures is turned over, elements described as "below" or "beneath" other elements would then be oriented "above" the other elements. Accordingly, the various example terms "below" and "lower" may encompass both an orientation of above and below. As used herein, relative terms such as "left", "right", and the like may be used to describe the left and right sides of the central axis of the first roller with respect to the up-down direction.

As shown in fig. 1 to 7, a double-slider type binding clip mechanism comprises a jaw seat 11, an opening sliding sleeve 19, a closing sliding sleeve 20, a first jaw 4 and a second jaw 5, wherein the jaw seat 11 is connected to the distal end of a shaft tube 27 through a distal end snake-shaped joint 26, the jaw seat 11 is provided with a channel 14 penetrating through the distal end and the proximal end, and the opening sliding sleeve 19 is arranged in the channel 14 and can slide in the channel 14 along the distal and proximal directions; the open sliding sleeve 19 is provided with a slide way 21 penetrating through the far end and the near end, the closed sliding block 20 is sleeved in the slide way 21 and can slide along the far and near direction of the slide way 21, the far end of the open sliding sleeve 19 is divided into an upper tongue 19a and a lower tongue 19b which are not connected with each other up and down by the slide way 21, the near end of the open sliding sleeve 19 forms a ring structure at the near end of the closed sliding block 20, the far end of the jaw seat 11 is provided with a round hole 16 capable of penetrating through the pin shaft 8, the far end of the open sliding sleeve 19 is centrally provided with a strip-shaped hole 12a extending along the far and near direction, the far end of the closed sliding block 20 is centrally provided with a strip-shaped hole 12b extending along the far and near direction, the front end of the closed sliding block 20 is cut into a flat and protruding lug plate 6, the strip-shaped hole 12b divides the lug plate 6 into a left tongue 6a and a right tongue 6b, the far end of the jaw seat 11 is provided with the pin shaft 8, the pin shaft 8 is connected with the strip-shaped holes 12a and 12b in a sliding manner along the far and near direction and is perpendicular to the opening end surfaces of the strip-shaped holes 12a and 12b, the proximal ends of the first clamp claw 4 and the second clamp claw 5 are respectively provided with a base plate 7, the opposite sides of the first clamp claw 4 and the second clamp claw 5 are perpendicular to the base plates 7, through holes 17 are formed in the centers of the two base plates 7, the ear plates 6 extend into the space between the opposite sides of the two base plates 7, an upper tongue 19a of the open sliding sleeve 19 is arranged on one side, facing away from the base plates 7 of the second clamp claw 5, of the base plates 7 of the first clamp claw 4, a lower tongue 19b of the open sliding sleeve 19 is arranged on one side, facing away from the base plates 7 of the first clamp claw 4, and the pin shaft 8 penetrates through the circular holes 16, the strip-shaped holes 12a and 12b and the through holes 17 of the two base plates 7 to rotationally connect the jaw seat 11 with the two base plates 7 and the ear plates 6; the left tongue 6a and the right tongue 6b are configured to drive the base plate 7 of the first jaw 4 and the second jaw 5 to rotate in opposite directions about the pin 8 when slid in the distal-proximal direction, the upper tongue 19a and the lower tongue 19b are configured to drive the proximal ends of the first jaw 4 and the second jaw 5 to rotate in opposite directions about the pin 8 when slid in the distal-proximal direction, two pulling ropes 2a,2b are provided inside the shaft tube 27, one pulling rope 2a having one end connected to the closing slider 20 and the other pulling rope 2b having one end connected to the proximal end of the opening slider 19.

Further, as shown in fig. 6 to 7, the left tongue 6a is provided with a first pivot structure which is embedded only with the base plate 7 of the first jaw 4 on the side facing the first jaw 4, the right tongue 6b is provided with a first pivot structure which is embedded only with the base plate 7 of the second jaw 5 on the side facing the second jaw 5, and the two first pivot structures are symmetrical relative to the bar-shaped hole 12a and are positioned on the side of the left tongue 6a and the right tongue 6b facing away from each other; the upper tongue 19a and the lower tongue 19b of the open sliding sleeve 19 are respectively arranged on one side of the two base plates 7, which are away from each other, the upper tongue 19a and the lower tongue 19b are respectively provided with a second pivot structure which is embedded into each other, the two second pivot structures are symmetrical relative to the strip-shaped hole 12b, and the first pivot structure and the second pivot structure are symmetrical relative to the strip-shaped hole 12 a.

As shown in fig. 6 to 7, specifically, the front and back sides of the ear plate 6 facing the two base plates 7 are respectively provided with a convex table 18 embedded with the base plates 7, the two base plates 7 are provided with a notch one 23 capable of being mutually embedded with the convex table one 18, and the convex table one 18 and the notch one 23 form a first pivot structure; the two base plates 7 are respectively provided with a second convex platform 25 facing the upper tongue 19a and the lower tongue 19b at positions symmetrical to the center of the first notch 23, and the upper tongue 19a and the lower tongue 19b are respectively provided with a second notch 24 which can be mutually embedded with the second convex platform 25;

The length of the upper tongue 19a and the lower tongue 19b in the distal-proximal direction is larger than the diameter of the base plate 7, the thickness of the ear plate 6 is smaller than the thickness of the slider 15, and the length of the ear plate 6 in the distal-proximal direction is larger than the diameter of the base plate 7.

As an embodiment, the middle part of the closing slide 20 is centrally provided with a middle seam 13 extending along the far and near direction, the pulling rope 2b is connected with the central position of the near end of the opening sliding sleeve 19, the pulling rope 2b passes through the middle seam 13, and the far and near direction length of the strip-shaped holes 12a and 12b is not greater than the far and near direction length of the middle seam 13.

In the above-mentioned scheme, as shown in fig. 9, when the pulling rope 2a is pulled, the closing slider 20 moves from the distal end to the proximal end in the jaw seat 11, the distal end of the bar-shaped hole 12b in the closing slider 20 slides to abut against the pin 8, the lug plate 6 of the closing slider 20 pulls the base plate 7 of the second jaw 5 to rotate counterclockwise around the pin 8 through the boss one 18, and pulls the base plate 7 of the first jaw 4 to rotate clockwise around the pin 8, so that the first jaw 4 and the second jaw 5 move toward each other to close. Simultaneously, when the base plate 7 of the first clamp claw 4 rotates clockwise around the pin shaft 8, the upper tongue 19a is pulled to slide distally through the second convex round table 25, and when the base plate 7 of the second clamp claw 5 rotates anticlockwise around the pin shaft 8, the lower tongue 19b is pulled to slide distally through the second convex round table 25, so that the proximal end of the strip-shaped hole 12a in the opening sliding sleeve 19 slides to be close to the pin shaft 8.

As shown in fig. 8, when the pulling rope 2b is pulled, the opening sliding sleeve 19 moves from the distal end to the proximal end in the jaw seat 11, the distal end of the bar-shaped hole 12a in the opening sliding sleeve 19 slides to be close to the pin shaft 8, the upper tongue 19a of the opening sliding sleeve 19 pulls the base plate 7 of the first jaw 4 to rotate anticlockwise around the pin shaft 8 through the notch two 24, and the lower tongue 19b of the opening sliding sleeve 19 pulls the base plate 7 of the second jaw 5 to rotate clockwise around the pin shaft 8 through the notch two 24, so that the first jaw 4 and the second jaw 5 move in opposite directions to open. Simultaneously, when the base plate 7 of the first clamp claw 4 rotates anticlockwise around the pin shaft 8, the left tongue 6a is pulled to slide distally through the notch I23, and when the base plate 7 of the second clamp claw 5 rotates clockwise around the pin shaft 8, the right tongue 6b is pulled to slide distally through the notch I23, so that the proximal end of the strip-shaped hole 12a in the closing slide block 20 slides to be close to the pin shaft 8. In this embodiment, the pulling rope 2b pushes the expanding sliding sleeve 19 to retract by exerting the pulling force, so that the first jaw 4 and the second jaw 5 are expanded, and therefore, the first jaw 4 and the second jaw 5 have larger expanding force when being expanded, and can expand tissues during operation, thereby realizing the function of separating devices such as forceps and scissors which need a certain expanding force, and solving the problem that the expanding force of the first jaw 4 and the second jaw 5 is insufficient when the devices are pushed out to the distal end only by using an actuating cable.

As shown in fig. 10 and 11, further, the cross section of the through hole 17 is circular.

Further, as a preferred embodiment, as shown in fig. 1, the above-mentioned double-slider type clamp head mechanism is mounted on a handle 3 of a surgical instrument, the handle 3 includes a pistol grip 28, an actuating lever 1, a base portion (i.e., an upper portion in fig. 1) of the grip 28 is coupled from a proximal end portion of the shaft tube 27, a root portion (i.e., a lower portion in fig. 1) of the grip 28 is far from a proximal end of the shaft tube 27, a reel 29 and a spring 30 are respectively provided at the base portion and the root portion in the grip 28, an upper portion of the actuating lever 1 is pivotally attached between the reel 29 and the spring 30 at the base portion of the grip 28, one end of the spring 30 is connected to the root portion of the grip 28, the other end is directed toward the base portion of the grip 28 and is connected to the upper portion of the actuating lever 1, the reel 29 is parallel to a rotation plane of the actuating lever 30 and is disposed at the grip base portion, and the other ends of the pulling ropes 2a,2b are connected to a first side 1a near the shaft tube 27 and a second side 1b near the spring 30 on the actuating lever 1 after bypassing the reel 29, and the second side 1b near the first side 1a near the 27 and the second side 1b near the spring 30 are respectively, the second side 1b near the reel 29 near the second side 1b near the second side 1 of the actuating lever 1 and near the second side 1b near the actuating lever 1;

Four actuation cords 31 are also provided around the axis of the distal serpentine joint 26, the actuation cords 31 extending within the distal serpentine joint 26 and being evenly distributed around the axis of the distal serpentine joint 26, the actuation cords 31 having one end connected to the distal end of the distal serpentine joint 26 and the other end connected to a traction mechanism within the handle 3 for controlling the positioning of the jaw mount 11. For further description of the distal serpentine joint 26, reference is made to structures similar to those in CN106923906a, and to descriptions of paragraph 0044 in CN 215534654U.

When the actuating lever 1 is pivoted about the base of the grip 28, the distances between the first side 1a and the second side 1b of the actuating lever 1 and the reel 29 are equal to each other, so that when the pulling rope 2a is pulled, the pulling rope 2b is released, and when the pulling rope 2b is pulled, the pulling rope 2a is released.

With respect to one embodiment of the traction mechanism, reference may be made to the construction of a surgical instrument in CN102905627a, as shown in fig. 12, which is a cross-sectional view of the proximal end of the handle 3, the proximal end of the handle 3 supporting the traction mechanism, the traction mechanism being a proximal serpentine joint 32, the proximal end of the proximal serpentine joint 32 being fixed within a rotatable hand wheel 38, the rotatable hand wheel 38 being mounted in the handle 3, the proximal serpentine joint 32 being disposed at the inner periphery of the hollow sphere member 35, the hollow sphere member 35 having an internal cavity and the proximal portion of the hollow sphere member 35 having an external surface in the shape of a sphere, the distal end of the rotatable hand wheel 38 having a ball and socket structure in sliding engagement with the external surface of the hollow sphere member 35, the outer surface of the hollow ball member 35 is fitted with a compression ring 34, the inner circumference of the compression ring 34 is spherical, forming a socket of the hollow ball member, as shown in fig. 13, the outer surface of the compression ring 34 is annular, supporting the inner surface of the locking member 33, the compression ring 34 is fixedly connected with the handle 3, the hollow ball member 35 is deflectable within the compression ring 34 relative to the axis of the compression ring 34, the compression ring 34 and the hollow ball member 35 form a ball-and-socket arrangement, the locking member 33 is used for locking the ball-and-socket arrangement, the locking member 33 has a locked state and an unlocked state, and the locking member 33 is used for fixing the position of the jaw seat 11 in a selected position when locking the ball-and-socket arrangement.

By controlling the movement of the hollow ball member 35, the movement of the shaft tube 27 portion is thereby driven. When the hollow ball member 35 moves, the actuation cord 31 on one side is pulled, causing the distal serpentine joint 26 to deflect in the corresponding direction. As shown in fig. 14, the proximal serpentine joint 32 between the hollow ball member 35 and the rotatable handwheel 38 is linked in a chain by a gimbal hinge 37 or other similar structure.

The above description describes a preferred embodiment of the present invention and the present structure is also applicable to monopolar and bipolar electrosurgical instruments and should not be taken as limiting the scope of the present invention as defined in the appended claims. Any modification, equivalent replacement and improvement without departing from the principle and spirit of the present invention should be considered as being within the scope of the claims of the present invention.

Claims (10)

1. The double-slider type clamp head mechanism comprises a clamp jaw seat (11), an opening sliding sleeve (19), a closing sliding block (20), a first clamp claw (4) and a second clamp claw (5), wherein the clamp jaw seat (11) is connected to the far end of a shaft tube (27) through a far-end snake-shaped joint (26), and is characterized in that the clamp jaw seat (11) is provided with a passage (14) penetrating through the far end and the near end, the opening sliding sleeve (19) is arranged in the passage (14) and can slide along the far and near directions, the opening sliding sleeve (19) is provided with a slide way (21) penetrating through the far end and the near end, the closing sliding block (20) is sleeved in the slide way (21) and can slide along the far and near directions of the slide way (21), the far ends of the opening sliding sleeve (19) and the closing sliding block (20) are centrally provided with strip-shaped holes (12 a,12 b) extending along the far and near directions, the far end of the closing sliding block (20) is divided into a left tongue (6 a) and a right tongue (6 b) by the strip-shaped holes (12 a), the far end of the opening sliding sleeve (19) is divided into an upper tongue (19 a) and a lower tongue (19 b) which are not connected up and down by a slideway (21), the near end of the opening sliding sleeve (19) forms an annular structure at the near end of the closing sliding block (20), the far end of the jaw seat (11) is provided with a pin shaft (8), the pin shaft (8) is in sliding connection with the strip-shaped holes (12 a,12 b) along the far and near directions, and perpendicular to the open end face of the strip-shaped holes (12 a,12 b), the proximal ends of the first jaw (4) and the second jaw (5) are rotationally connected with the pin shaft (8), and the distal ends of the closing slider (20) are arranged between the proximal ends of the first jaw (4) and the second jaw (5), the proximal ends of the first jaw (4) and the second jaw (5) are configured to be driven to rotate in opposite directions around the pin shaft (8) when sliding in the far and near directions, the upper tongue (19 a) and the lower tongue (19 b) of the opening slider (19) are arranged on one side, facing away from each other, of the proximal ends of the first jaw (4) and the second jaw (5), the upper tongue (19 a) and the lower tongue (19 b) are configured to be driven to rotate in opposite directions around the pin shaft (8) when sliding in the far and near directions, the two pulling ropes (2 a) are arranged inside the two pulling ropes (2 a), and the pulling ropes (2 b) are connected with one pulling rope (2 a) and the other pulling rope (2 b) are provided with one end, which the pulling rope (20) is connected.

2. A double slider type binding clip mechanism according to claim 1, wherein the distal end of the closing slider (20) is configured as a flat ear plate (6), the proximal ends of the first and second jaws (4, 5) are respectively provided with a base plate (7), the ear plate (6) extends between opposite sides of the two base plates (7), the ear plate (6) is divided into a left tongue (6 a) and a right tongue (6 b) by a strip-shaped hole (12 a), the front and back sides of the ear plate (6) facing the two base plates (7) are respectively provided with a first pivot structure which is mutually embedded with the base plates (7), and the two first pivot structures are symmetrically arranged on the left tongue (6 a) and the right tongue (6 b) relative to the strip-shaped hole (12 a);

The upper tongue (19 a) and the lower tongue (19 b) of the opening sliding sleeve (19) are respectively arranged on one sides of the two base plates (7) which are away from each other, the upper tongue (19 a) and the lower tongue (19 b) are respectively provided with a second pivot structure which is embedded into each other and is opposite to the base plates (7) which are opposite to the upper tongue and the lower tongue, the two second pivot structures are symmetrical relative to the strip-shaped holes (12 b), and the first pivot structure and the second pivot structure are symmetrical relative to the strip-shaped holes (12 a).

3. A double slider type binding clip mechanism according to claim 2, wherein the mutually facing sides of the first jaw (4) and the second jaw (5) are perpendicular to the base plate (7).

4. The double-slider type clamp head mechanism according to claim 2, wherein the front and back sides of the lug plate (6) facing the two base plates (7) are respectively provided with a convex table I (18) which is mutually embedded with the base plates (7), the two base plates (7) are provided with a notch I (23) which can be mutually embedded with the convex table I (18), and the convex table I (18) and the notch I (23) form a first pivoting structure;

The two base plates (7) are respectively provided with a convex platform II (25) which faces the upper tongue (19 a) and the lower tongue (19 b) at positions symmetrical to the center of the first notch (23), and the upper tongue (19 a) and the lower tongue (19 b) are respectively provided with a second notch (24) which can be mutually embedded with the convex platform II (25).

5. A double slider type binding clip mechanism according to claim 1, wherein the length of the upper tongue (19 a) and the lower tongue (19 b) in the distal-proximal direction is larger than the diameter of the base plate (7).

6. A double slider type binding clip mechanism according to claim 2, wherein the thickness of the ear plate (6) is smaller than the thickness of the closing slider (20), and the length of the ear plate (6) in the distal-proximal direction is larger than the diameter of the base plate (7).

7. A double slider type binding clip mechanism according to claim 2, wherein the base plate (7) is centrally provided with a through hole (17), and the cross section of the through hole (17) is circular.

8. The double-slider binding clip mechanism according to claim 1- , wherein the proximal ends of the opening sliding sleeve (19) and the closing slider (20) are provided with threading holes (22), and the opening sliding sleeve (19) and the closing slider (20) are respectively connected with the pulling rope (2 b) and the pulling rope (2 a) through the threading holes (22).

9. A surgical instrument, comprising: the double slider clip mechanism of any one of claims 1 to 7: handle (3) comprising a pistol grip (28), an actuation lever (1), the base of the grip (28) being coupled from the proximal end of the shaft tube (27), the root of the grip (28) being remote from the proximal end of the shaft tube (27), the base and the root in the grip (28) being provided with a reel (29) and a spring (30), respectively, the upper part of the actuation lever (1) being pivotally attached between the reel (29) and the spring (30) at the base of the grip (28), the spring (30) having one end connected to the root of the grip (28) and the other end facing the base of the grip (28) and being connected to the upper part of the actuation lever (1), the reel (29) being parallel to the plane of rotation of the actuation lever (30) and being arranged at the base of the grip, the other ends of the pull cords (2 a,2 b) passing the proximal end of the shaft tube (27) and the base of the grip (28), bypassing the reel (29) being connected to a first side (1 a) of the actuation lever (1) and a second side (1 b) of the actuation lever (30) on the base of the actuation lever (1), respectively, the root (30) being deflected to the first side (1) of the first side (30) of the lever (1) being adjacent to the second side (29) of the handle (1), the second side (1 b) of the actuating lever (1) is remote from the reel (29);

And four actuating ropes (31) are arranged, the actuating ropes (31) extend in the distal snake-shaped joint (26) and are uniformly distributed around the axis of the distal snake-shaped joint (26), one end of each actuating rope (31) is connected with the distal end of the distal snake-shaped joint (26), and the other end of each actuating rope is connected with a traction mechanism in the handle (3) so as to control the positioning of the jaw seat (11).

10. Surgical instrument characterized in that the traction mechanism is replaced by a proximal serpentine joint (32), the proximal serpentine joint (32) being used to couple the proximal end of the shaft tube (27) to the handle (3);

a locking mechanism for fixing the position of the jaw seat (11) in a selected position;

The locking mechanism comprises a ball and socket arrangement arranged around the proximal serpentine joint (32), a locking member (33) for locking the ball and socket arrangement, the locking member (33) having a locked state and an unlocked state;

The ball-and-socket arrangement comprises a compression ring (34), the compression ring (34) being supported from the handle (3), having an outer surface for supporting the locking member (33) around the locking member (33), and having an inner surface defining an at least partially spherical socket;

The ball-and-socket device further comprises: a hollow ball member (35), the hollow ball member (35) having an interior cavity and an at least partially spherical exterior surface, the at least partially spherical exterior surface of the hollow ball member (35) mating with the at least partially spherical socket;

The actuation cord (31) extends between the distal and proximal serpentine joints (26, 32) and is evenly distributed about the axes of the distal and proximal serpentine joints (26, 32), the actuation cord (31) having one end connected to the distal end of the distal serpentine joint (26) and the other end constrained when passing the proximal end of the proximal serpentine joint (32) for coupling the movement of the proximal serpentine joint (32) to the distal serpentine joint (26) for controlling the positioning of the jaw mount (11).