CN221555789U - Clamp applier - Google Patents

Abstract

The utility model relates to the technical field of clinical forceps, and particularly provides a forceps, which comprises a shell, a pushing mechanism and an executing mechanism, wherein the shell comprises a main body shell and a rotating shell, the pushing mechanism comprises a threaded push rod, a pushing clamping block, a pushing fixing frame and a pushing barrel, and the executing mechanism comprises a swinging mechanism and a closing mechanism. Through special structural design, the clamp applier has the functions of rotation, swing, closing and self-locking, and the application range of the clamp applier is increased.

Description

Clamp applier

Technical Field

The utility model relates to the technical field of surgical forceps for clinic, and particularly provides a clip applier.

Background

Passive surgical instrument appliers (without clamps) are instruments commonly used in surgery to clamp, secure or move tissue, organs, and the like. It has the following characteristics:

1. Is made of high-strength materials: the clip applier is generally made of high-strength materials such as stainless steel and has good corrosion resistance and durability. 2. Can accurately control: the clip applier is exquisite in design, and can realize accurate clamping and releasing operation through a handle or other mechanical devices, and accurate control is provided. 3. Safety and reliability: the design of the clip applier considers the safety of the operation and ensures that no extra damage is caused to tissues or organs in the process of clipping. 4. Multifunctional: the clip applier can be used for various operations, such as thoracic, abdominal, orthopaedics, neurosurgery and the like, and is suitable for different operation requirements.

However, clip appliers currently in clinical use have the following disadvantages: the pliers can only operate linearly and the head end cannot swing. In narrow spaces, when the clip is required to bend, the existing clip applier cannot be realized.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a clip applier.

The utility model is realized by providing a clip applier, which comprises a shell, a pushing mechanism and an executing mechanism, wherein:

The shell comprises a main body shell and a rotating shell, wherein the main body shell comprises a main body left shell and a main body right shell which are butted together, and the rotating shell comprises a rotating upper shell, a rotating lower shell and a rotating cover arranged on the rotating upper shell;

The pushing mechanism comprises a threaded push rod, a pushing clamping block, a pushing fixed frame and a pushing cylinder, one section of the middle part of the threaded push rod is a threaded section, the threaded section penetrates into a hole in the side wall of the pushing fixed frame, the pushing clamping block is connected with the main body shell, the pushing clamping block comprises a left clamping block and a right clamping block, threads matched with the threaded section are arranged in the left clamping block and the right clamping block, the left clamping block and the right clamping block can be opened and can be connected between the pushing fixed frame and the threaded section of the threaded push rod in a clamping mode, and the pushing cylinder is connected to the far end of the threaded push rod;

The actuating mechanism comprises a swinging mechanism and a closing mechanism, the swinging mechanism comprises a center bar, the left side and the right side of the center bar are provided with groove bars, the far ends of the groove bars are respectively provided with a rotating rod groove, the groove bars are respectively movably matched with the rotating bars, the rotating rod grooves are respectively movably matched with the rotating rods, the near ends of the two rotating rods are respectively connected with the far ends of the two rotating bars, and the far ends of the two rotating rods are rotationally connected with a rotating disc; a rotating assembly is connected to the position, close to the proximal end, of the central strip block, and the rotating assembly is connected with the proximal ends of the two rotating strips; the closing mechanism comprises an outer cylinder assembly and a clip assembly, the outer cylinder assembly comprises an outer cylinder and a front cylinder movably connected to the far end of the outer cylinder, the outer cylinder is sleeved outside the central bar, the rotating shell is sleeved outside the near end of the outer cylinder at a square block position, the rotating assembly extends out of the outer cylinder and the near end of the rotating shell, and the near end of the outer cylinder is in butt joint with the far end of the pushing cylinder; the clip assembly comprises a clip and a clip supporting rod with elasticity, wherein the distal end of the clip supporting rod is rotationally connected with the clip, the proximal end of the clip supporting rod is connected with the distal end of the center bar, the proximal end of the clip is fixedly connected with the rotating disc, and the clip is positioned on the outer side of the distal end of the front barrel.

Preferably, the upper surfaces of the left clamping block and the right clamping block are respectively provided with an upper lug, the lower surfaces of the left clamping block and the right clamping block are respectively provided with a lower lug, the upper wall and the lower wall of the pushing fixing frame are respectively provided with an splayed inclined groove, the upper lug of the left clamping block is matched with the left side groove of the inclined groove on the upper wall of the pushing fixing frame, the lower lug of the left clamping block is matched with the left side groove of the inclined groove on the lower wall of the pushing fixing frame, the upper lug of the right clamping block is matched with the right side groove of the inclined groove on the upper wall of the pushing fixing frame, and the lower lug of the right clamping block is matched with the right side groove of the inclined groove on the lower wall of the pushing fixing frame;

A pushing clamping block column is arranged on one side of the main body shell, pushing clamping block holes are formed in the left clamping block and the right clamping block, and the pushing clamping block column is inserted into the pushing clamping block holes;

A pushing spring is arranged between the proximal end of the pushing fixing frame and the inner wall of the main body shell.

Further preferably, the rotating assembly comprises two rack blocks, a first rotating gear and a second rotating gear, the lower ends of the two rack blocks are respectively connected with the two rotating strips, racks of the two rack blocks are horizontally and oppositely arranged, the first rotating gear is meshed between the two rack blocks, and the second rotating gear is fixedly connected above the first rotating gear; the rotary upper shell is provided with a containing slot hole of a rotary component, a rotary limiting rod is arranged to be rotationally connected to the inner wall of the containing slot hole, the lower end of the rotary limiting rod is of a cam structure, two rotary limiting blocks are arranged on two sides of the rotary limiting rod, one end of each rotary limiting block is rotationally clamped in an arc groove of the containing slot hole, the other end of each rotary limiting block is clamped on a gear of a second rotary gear, one end of each rotary spring is arranged in a square groove of the containing slot hole, and the other end of each rotary limiting block is respectively abutted to one surface of each rotary limiting block, which is far away from each other.

Still preferably, the rotating assembly further comprises a rotating knob and a rotating limiting button, the rotating cover covers the containing slot hole of the rotating upper shell, the upper end of the second rotating gear penetrates through the rotating cover to be connected with the rotating knob, and the upper end of the rotating limiting rod penetrates through the rotating cover to be connected with one end of the rotating limiting button.

Further preferably, a semi-sphere is arranged on the lower surface of the other end of the rotation limiting button, a plurality of semi-sphere grooves are formed in the rotation upper shell and the rotation cover, and the semi-sphere can be clamped in the semi-sphere grooves.

Still preferably, the rotating assembly further comprises a clamping rod, a section of the clamping rod close to the proximal end is a cylindrical section, a section of the clamping rod close to the distal end is a square column section, a clamping groove is formed in the distal end of the clamping rod, the circular column section of the clamping rod is located in the axial through hole of the threaded push rod, and the square column section is located in the axial through hole of the central bar.

Further preferably, pushing handles are respectively arranged at the left side and the right side of the proximal end of the threaded push rod and perpendicular to the threaded push rod, and clamping rod jacking wires are arranged to penetrate through the pushing handles and the threaded push rod to be in contact with the outer surface of the clamping rod.

Further preferably, a thrust spring is provided between the proximal end of the outer tube and the distal end of the main body casing, one end of the thrust spring is a small-diameter end, the other end is a large-diameter end, the small-diameter end is abutted against the outer tube, and the large-diameter end is abutted against the distal end of the main body casing.

Further preferably, the clip comprises an upper clip, a lower clip and a clip spring, wherein the proximal ends of the upper clip and the lower clip are rotationally connected through a clip pin, the clip spring is connected to the clip pin, and the two ends of the clip spring prop open the upper clip and the lower clip.

Further preferably, the proximal end of the center bar is a center bar clamping shaft, a clamping ring is arranged at the proximal end of the center bar clamping shaft, a clamping ring clamping groove is formed in the inner wall of the main body shell, and the clamping ring is clamped in the clamping ring clamping groove.

Compared with the prior art, the utility model has the advantages that:

through special structural design, the clamp applier has the functions of rotation, swing, closing and self-locking, and the application range of the clamp applier is increased.

Drawings

The utility model will be described in further detail with reference to the accompanying drawings and embodiments:

FIG. 1 is a schematic view of the overall construction of the clip applier (the left housing of the main body is not shown);

FIG. 2 is a schematic illustration of the pushing mechanism in the clip applier;

FIG. 3 is a schematic view of another angular configuration of the pushing mechanism in the clip applier;

FIG. 4 is a schematic view of a portion of the swing assembly of the clip applier;

FIG. 5 is an exploded view of the swing assembly of the clip applier;

FIG. 6 is a schematic diagram of a portion of the swing assembly exploded view;

FIG. 7 is a block diagram of a rotational stop lever;

FIG. 8 is a view of a rotational limit knob;

FIG. 9 is a block diagram of a closure mechanism;

FIG. 10 is a block diagram of an outer barrel assembly;

FIG. 11 is an exploded view of the clip assembly;

FIG. 12 is a right shell construction diagram of the main body;

FIG. 13 is a left shell construction diagram of the main body;

FIG. 14 is a diagram of the rotary upper shell structure;

Fig. 15 is a view showing the structure of the rotary lower case.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-15, the present utility model provides a clip applier comprising a housing, a pushing mechanism, and an actuator, wherein:

The shell comprises a main body shell and a rotating shell, wherein the main body shell comprises a main body left shell 1 and a main body right shell 2 which are butted together, and the rotating shell comprises a rotating upper shell 3, a rotating lower shell 4 and a rotating cover 5 which is arranged on the rotating upper shell 3;

The pushing mechanism comprises a threaded push rod 6, a pushing clamping block 7, a pushing fixed frame 8 and a pushing cylinder 9, one section of the middle part of the threaded push rod 6 is a threaded section, the threaded section penetrates into a hole in the side wall of the pushing fixed frame 8, the pushing clamping block 7 is connected with the main body shell, the pushing clamping block 7 comprises a left clamping block 701 and a right clamping block 702, threads matched with the threaded section are respectively arranged in the left clamping block 701 and the right clamping block 702, the left clamping block 701 and the right clamping block 702 can be opened and can be connected between the pushing fixed frame and the threaded section of the threaded push rod 6 in a clamping mode, and the pushing cylinder 9 is connected to the far end of the threaded push rod 6;

the actuating mechanism comprises a swinging mechanism and a closing mechanism, the swinging mechanism comprises a center bar 10, groove strips 1001 are arranged on the left side and the right side of the center bar 10, rotating rod grooves 1002 are formed in the distal ends of the groove strips 1001, rotating rods 11 are movably matched in the groove strips 1001, rotating rods 12 are movably matched in the rotating rod grooves 1002, the proximal ends of the two rotating rods 12 are respectively connected with the distal ends of the two rotating rods 11, and one rotating disc 13 is rotatably connected with the distal ends of the two rotating rods 12; a rotating assembly is connected to the position of the central bar 10 close to the proximal end, and the rotating assembly is connected to the proximal ends of the two rotating bars 11; the closing mechanism comprises an outer cylinder assembly and a clip assembly, the outer cylinder assembly comprises an outer cylinder 14 and a front cylinder 15 movably connected to the far end of the outer cylinder 14 through a twisted strip 40, the outer cylinder 14 is sleeved outside the center bar 10, a rotating shell is sleeved at a square block position outside the near end of the outer cylinder 14, the rotating assembly extends out from the outer cylinder 14 and the near end of the rotating shell, and the near end of the outer cylinder 14 is in butt joint with the far end of the push cylinder 9; the clip assembly comprises a clip 16 and a clip support rod 17 with elasticity, wherein the distal end of the clip support rod 17 is rotationally connected with the clip 16, the proximal end is connected with the distal end of the center bar 10, the proximal end of the clip 16 is fixedly connected with the rotating disc 13, and the clip 16 is positioned on the outer side of the distal end of the front cylinder 15.

In the present utility model, the proximal end is near the hand manipulation end, and the distal end is far. The implementation process of the motion of the clamp applier is as follows:

1. Swing motion

The left side and the right side of the operation rotating assembly do front-back dislocation movement and drive the two rotating bars 11 to do front-back dislocation movement, the two rotating bars 11 drive the two rotating bars 12 to do front-back dislocation movement, the two rotating bars 12 drive the left end and the right end of the rotating disc 13 to do front-back dislocation movement, and the rotating disc 13 drives the clip 16 to swing left and right.

2. Rotational movement

The outer parts of the rotary upper case 3 and the rotary lower case 4 may be provided with protruding edges to increase the rotational friction. The rotary housing is internally provided with a square groove corresponding to the square block of the outer cylinder 14. The rotating assembly penetrates through the square slot of the outer cylinder 14, the rotating strip 11 is connected to the center strip 10, and the center strip 10 is connected with the clamp assembly through the rotating rod 12 and the rotating disc 13. Therefore, when the rotary housing is rotated, the outer cylinder 14 can rotate along with the rotary housing due to the square structure, the outer cylinder 14 drives the rotary assembly to rotate, and the rotary assembly drives the clip assembly to rotate.

3. Pushing movement

The main body shell is held by hand, the hook-operated pushing fixing frame 8 moves towards the proximal end, the left clamping block 701 and the right clamping block 702 are driven to open for a certain distance, the threaded push rod 6 and the two pushing clamping blocks are in threaded engagement and release, at the moment, the threaded push rod 6 is pushed, the threaded push rod 6 moves forwards, the pushing cylinder 9 is pushed, the pushing cylinder 9 pushes the outer cylinder 14, the whole outer cylinder assembly moves towards the distal end, and the clamp 16 is sleeved into the front cylinder 15, so that the closing movement is realized. After the pushing fixed frame 8 is reset, the threaded push rod 6 and the pushing clamping block 7 are in threaded connection, so that the clamping device can be kept in a fixed state during the biting, and the clamping device 16 is kept in a closed state. When the clamp 16 is required to be opened, the fixed frame 8 is pushed by hooking, the threaded push rod 6 and the two pushing clamping blocks are meshed and loosened by threads, so that the outer cylinder assembly moves backwards, the clamp 16 extends out of the front cylinder 15, and the clamp 16 is opened. If the fine tuning clamp is required to be closed, the threaded push rod 6 is rotated, the clamp block 7 is pushed to be engaged with the threaded push rod 6, the threaded push rod 6 is rotated on the premise that the fixed frame 8 is not pushed, the threaded push rod 6 can extend forwards, the screw pitch is small, the advancing distance of the threaded push rod 6 for one turn is small, the clamp 16 can be caused to be small in closing degree, and the fine tuning effect is achieved.

As an improvement of the technical scheme, the upper sides of the left clamping block 701 and the right clamping block 702 are respectively provided with an upper lug 703, the lower sides of the left clamping block 701 and the right clamping block 702 are respectively provided with a lower lug, the upper wall and the lower wall of the pushing fixed frame 8 are respectively provided with an eight-shaped inclined groove 801, the upper lug 703 of the left clamping block 701 is matched with a left side groove of the upper wall inclined groove 801 of the pushing fixed frame 8, the lower lug of the left clamping block 701 is matched with a left side groove of the lower wall inclined groove 801 of the pushing fixed frame 8, the upper lug 703 of the right clamping block 702 is matched with a right side groove of the upper wall inclined groove 801 of the pushing fixed frame 8, and the lower lug of the right clamping block 702 is matched with a right side groove of the lower wall inclined groove 801 of the pushing fixed frame 8;

When the left clamping block 701 and the right clamping block 702 are required to loosen the threaded push rod 6, the fixing frame 8 is pulled and pushed to the near end, the left clamping block 701 and the right clamping block 702 are fixed with the position of the main body shell, the upper inclined groove 801 and the lower inclined groove 801 force the left clamping block 701 and the right clamping block 702 to be far away, when the threaded push rod 6 is required to be clamped, the fixing frame 8 is pulled and pushed to the far end, and the upper inclined groove 801 and the lower inclined groove 801 force the left clamping block 701 and the right clamping block 702 to be close to each other, so that the threaded push rod 6 is clamped.

As a connection mode of the main body shell and the pushing clamp block 7, a pushing clamp block column 18 is arranged on one side of the main body shell, pushing clamp block holes 704 are formed in the left clamp block 701 and the right clamp block 702, and the pushing clamp block column 18 is inserted into the pushing clamp block holes 704;

During clamping and unclamping, the left and right clamp blocks 701 and 702 move away from or toward each other horizontally with reference to the push clamp block column 18.

In order to maintain the left and right clamp blocks 701 and 702 in a state of clamping the threaded push rod 6 in a normal state, as a modification, a push spring 19 is provided between the proximal end of the push holder 8 and the inner wall of the main body case.

As a specific implementation manner of the rotating assembly, the rotating assembly includes two rack blocks 22, a first rotating gear 23 and a second rotating gear 24, wherein the lower ends of the two rack blocks 22 are respectively connected with the two rotating bars 11, racks of the two rack blocks 22 are horizontally and oppositely arranged, the first rotating gear 23 is meshed between the two rack blocks 22, and the second rotating gear 24 is fixedly connected above the first rotating gear 23; the rotating upper shell 3 is provided with a containing slot hole of a rotating assembly, a rotating limiting rod 25 is arranged to be connected to the inner wall of the containing slot hole in a rotating mode, the lower end of the rotating limiting rod 25 is of a cam structure, two rotating limiting blocks 26 are arranged on two sides of the rotating limiting rod 25, one end of each rotating limiting block 26 is rotationally clamped in an arc groove of the containing slot hole, the other end of each rotating limiting block 26 is clamped on a gear of the second rotating gear 24, one end of each rotating spring 27 is arranged in a square groove of the corresponding containing slot hole, and the other end of each rotating spring is respectively abutted to one surface of each rotating limiting block 26, which is far away from each other.

The rotating assembly can enable the clip to realize three states of incapability of swinging, unidirectional swinging and left-right swinging:

Cannot swing: the rotation limiting rod 25 does not rotate, a cam structure on the rotation limiting rod 25 is not moved, and the two rotation limiting blocks 26 are clamped between teeth of the second rotation gear 24, so that the second rotation gear 24 does not rotate, and finally the clamp 16 cannot swing;

Swinging in one direction: when the rotation limiting rod 25 rotates at an acute angle, the cam structure rotates, so that one rotation limiting block 26 is clamped between the teeth of the second rotation gear 24, and the other rotation limiting block 26 is separated from the teeth of the second rotation gear. When the second rotating gear 24 rotates in the direction of the non-detached rotating limiting block 26, the rotating limiting block 26 can be pushed, and when the rotating limiting block 26 is detached from the teeth, the rotating spring 27 can rebound the rotating limiting block 26 to the next teeth. If the second rotating gear 24 rotates in the direction of the separated rotating limiting block 26, the rotating limiting rod 25 is fixed because the limiting block abuts against the rotating limiting rod 25, so that the rotating limiting block is blocked and cannot move, and unidirectional swinging is achieved.

Swing left and right: when the rotation limiting rod 25 rotates 180 degrees, the cam structure rotates 180 degrees, the end part with the large radius of the cam structure is far away from the second rotation gear 24 and is positioned between the two rotation limiting blocks 26, and the included angle between the two rotation limiting blocks 26 is increased, so that the two rotation limiting blocks 26 are separated from teeth of the second rotation gear 24. When the second rotating gear 24 rotates, the rotating limiting block 26 can be driven to move together, and when the rotating limiting block 26 is separated from a tooth space, the rotating spring 27 can rebound the rotating limiting block 26 to the next tooth space, so that left-right swinging is realized.

In order to facilitate the operation of the rotation limiting rod 25 and the second rotation gear 24, as an improvement, the rotation assembly further comprises a rotation knob 28 and a rotation limiting button 29, the rotation cover 5 covers the accommodation slot hole of the rotation upper shell 3, the upper end of the second rotation gear 24 passes through the rotation cover 5 to be connected with the rotation knob 28, and the upper end of the rotation limiting rod 25 passes through the rotation cover 5 to be connected with one end of the rotation limiting button 29.

The rotation of the rotation limiting knob 29 drives the rotation of the rotation limiting rod 25, and the rotation of the rotation knob 28 drives the rotation of the second rotation gear 24.

For convenient positioning, as an improvement, a semicircular ball 36 is arranged on the lower surface of the other end of the rotation limiting button 29, a plurality of semicircular ball grooves 37 are arranged on the rotation upper shell 3 and the rotation cover 5, and the semicircular ball 36 can be clamped in the semicircular ball grooves 37.

The rotation limiting button 29 is separated from the semicircular groove 37, so that the rotation limiting button 29 can be rotated, the cam structure is driven to rotate, and when the rotation limiting button 29 is required to be positioned, after the rotation limiting button 29 is rotated to a target position, the semicircular ball 36 at the lower end of the rotation limiting button 29 is clamped into the semicircular groove 37 at the position.

In order to fix the clip 16 at a certain swing position during swing, as an improvement, the rotating assembly further comprises a clamping rod 30, a section of the clamping rod 30 close to the proximal end is a cylindrical section, a section close to the distal end is a square column section, a clamping groove is arranged at the distal end of the clamping rod 30, the circular column section of the clamping rod 30 is located in the axial through hole of the threaded push rod 6, and the square column section is located in the axial through hole of the central bar 10. To facilitate pushing of the clamp bar 30, a clamp bar end block 38 is provided at the proximal end of the clamp bar 30.

When the swing position of the clip 16 is adjusted, the clip end block 38 is pushed, and the clip end block 38 drives the clip 30 to move forward. The clamping groove at the distal end of the clamping rod 30 stretches into the tooth space of the rotating disc 13, so that the rotating disc 13 is locked and cannot rotate, and the swinging position is locked.

In order to facilitate locking the position of the clamping rod 30, as an improvement of the technical scheme, push handles 20 are respectively arranged on the left side and the right side of the proximal end of the threaded push rod 6 and perpendicular to the threaded push rod 6, and clamping rod jackscrews 21 are arranged to penetrate through the push handles 20 and the threaded push rod 6 to be in contact with the outer surface of the clamping rod 30.

After the swing position is adjusted, the clamping rod jackscrews 21 are rotated, so that the two clamping rod jackscrews 21 on two sides are propped against the clamping rod 30, and the positioning of the clamping rod 30 is realized.

In order to reset the clip 16 after the closing movement is achieved, a thrust spring 31 is provided between the proximal end of the outer cylinder 14 and the distal end of the main body casing, one end of the thrust spring 31 is a small-diameter end, the other end is a large-diameter end, the small-diameter end is abutted with the outer cylinder 14, and the large-diameter end is abutted with the distal end of the main body casing.

When the clip 16 is required to reset, the hook pushes the fixing frame 8, and the thrust spring 31 pushes the outer cylinder 14 to move back, so that the clip 16 extends out of the front cylinder 15, and the opening movement of the clip 16 is realized.

As a specific structural arrangement of the clip 16, the clip 16 includes an upper clip 32, a lower clip 33, and a clip spring 34, wherein proximal ends of the upper clip 32 and the lower clip 33 are rotatably connected by a clip pin, the clip spring 34 is connected to the clip pin, and both ends of the clip spring 34 prop open the upper clip 32 and the lower clip 33.

In order to realize the relative fixation of the position between the center bar 10 and the main body shell, as an improvement, the proximal end of the center bar 10 is a center bar clamping shaft 35, the proximal end of the center bar clamping shaft 35 is provided with a clamping ring, the inner wall of the main body shell is provided with a clamping ring clamping groove, and the clamping ring is clamped in the clamping ring clamping groove.

In the present utility model, in order that the main body housing can be perfectly matched and attached to each of the internal components, as a modification, the inside of the main body left housing 1 and the main body right housing 2 are provided with a push clamp block groove 39, a push fixing frame groove 40, a push clamping groove 41, a spindle clamping groove 42, an outer tube clamping groove 43, a push spring clamping groove 44 and a rotating housing clamping groove 45 in this order from the proximal end to the distal end. Only the right main body case 2 has a push grip block column. The thrust spring catch 44 retains the thrust spring motion for axial movement. The rotating housing clamping groove 45 limits the axial movement of the rotating housing and ensures the rotation around the shaft. The spindle notch 42 limits axial movement of the center bar 10 to ensure pivoting. The outer tube clamping groove 43 limits the axial movement of the outer tube and ensures pivoting. The pushing clamping groove 41 limits the axial movement of the pushing cylinder and ensures the rotation around the shaft. The push mount slot 40 ensures that the push mount moves only in the axial direction and the push clamp block slot 39 ensures that the push clamp block moves only in the axial direction.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (10)

1. The clip applier is characterized by comprising a shell, a pushing mechanism and an actuating mechanism, wherein:

The shell comprises a main body shell and a rotating shell, wherein the main body shell comprises a main body left shell (1) and a main body right shell (2) which are butted together, and the rotating shell comprises a rotating upper shell (3), a rotating lower shell (4) and a rotating cover (5) arranged on the rotating upper shell (3) which are butted together;

The pushing mechanism comprises a threaded push rod (6), a pushing clamping block (7), a pushing fixing frame (8) and a pushing cylinder (9), one section of the middle part of the threaded push rod (6) is a threaded section, the threaded section penetrates into a hole in the side wall of the pushing fixing frame (8), the pushing clamping block (7) is connected with a main body shell, the pushing clamping block (7) comprises a left clamping block (701) and a right clamping block (702), threads matched with the threaded section are arranged inside the left clamping block (701) and the right clamping block (702), the left clamping block (701) and the right clamping block (702) can be opened and clamped, the pushing cylinder (9) is connected between the pushing fixing frame and the threaded section of the threaded push rod (6), and the pushing cylinder (9) is connected to the far end of the threaded push rod (6);

The actuating mechanism comprises a swinging mechanism and a closing mechanism, the swinging mechanism comprises a center bar block (10), the left side and the right side of the center bar block (10) are provided with groove bars (1001), the far ends of the groove bars (1001) are respectively provided with a rotating rod groove (1002), rotating rods (11) are respectively and movably matched in the groove bars (1001), rotating rods (12) are respectively and movably matched in the rotating rod grooves (1002), the near ends of the two rotating rods (12) are respectively connected with the far ends of the two rotating rods (11), and the far ends of the two rotating rods (12) are rotationally connected with a rotating disc (13); a rotating assembly is connected to the position of the central bar (10) close to the proximal end, and the rotating assembly is connected with the proximal ends of the two rotating bars (11); the closing mechanism comprises an outer cylinder assembly and a clip assembly, the outer cylinder assembly comprises an outer cylinder (14) and a front cylinder (15) movably connected to the far end of the outer cylinder (14), the outer cylinder (14) is sleeved outside the center bar (10), the rotating outer shell is sleeved at the square block position outside the near end of the outer cylinder (14), the rotating assembly extends out of the outer cylinder (14) and the near end of the rotating outer shell, and the near end of the outer cylinder (14) is in butt joint with the far end of the pushing cylinder (9); the clip assembly comprises a clip (16) and a clip supporting rod (17) with elasticity, wherein the distal end of the clip supporting rod (17) is rotationally connected with the clip (16), the proximal end of the clip supporting rod is connected with the distal end of the center bar (10), the proximal end of the clip (16) is fixedly connected with the rotating disc (13), and the clip (16) is positioned outside the distal end of the front cylinder (15).

2. The clip applier according to claim 1, wherein upper protrusions (703) are respectively arranged on the left clamping block (701) and the right clamping block (702), lower protrusions are respectively arranged on the lower surface, splayed inclined grooves (801) are respectively arranged on the upper wall and the lower wall of the pushing fixed frame (8), the upper protrusions (703) of the left clamping block (701) are matched with left side grooves of the upper wall inclined grooves (801) of the pushing fixed frame (8), the lower protrusions of the left clamping block (701) are matched with left side grooves of the lower wall inclined grooves (801) of the pushing fixed frame (8), the upper protrusions (703) of the right clamping block (702) are matched with right side grooves of the upper wall inclined grooves (801) of the pushing fixed frame (8), and the lower protrusions of the right clamping block (702) are matched with right side grooves of the lower wall inclined grooves (801) of the pushing fixed frame (8);

A pushing clamp block column (18) is arranged on one side of the main body shell, pushing clamp block holes (704) are formed in the left clamp block (701) and the right clamp block (702), and the pushing clamp block column (18) is inserted into the pushing clamp block holes (704);

A pushing spring (19) is arranged between the proximal end of the pushing fixed frame (8) and the inner wall of the main body shell.

3. The clip applier according to claim 1, wherein the rotating assembly comprises two rack blocks (22), a first rotating gear (23) and a second rotating gear (24), wherein lower ends of the two rack blocks (22) are respectively connected with the two rotating bars (11), racks of the two rack blocks (22) are horizontally and oppositely arranged, the first rotating gear (23) is meshed between the two rack blocks (22), and the second rotating gear (24) is fixedly connected above the first rotating gear (23); the utility model discloses a rotary assembly's holding slotted hole has been seted up on rotating epitheca (3), be equipped with rotation gag lever post (25) and rotate the inner wall of connecting at holding the slotted hole, the lower extreme of rotation gag lever post (25) is cam structure, both sides at rotation gag lever post (25) are equipped with two rotation stopper (26), the one end rotation joint of rotation stopper (26) is in the circular arc inslot that holds the slotted hole, the other end joint is on the gear of second rotation gear (24), be equipped with the square inslot that holds the slotted hole is arranged in to the one end of two rotation springs (27), the other end butt is in the one side that two rotation stopper (26) kept away from each other respectively.

4. The clip applier according to claim 3, wherein said rotation assembly further comprises a rotation knob (28) and a rotation limit knob (29), said rotation cover (5) is covered on said accommodation slot of said rotation upper case (3), an upper end of said second rotation gear (24) is connected to said rotation knob (28) through said rotation cover (5), and an upper end of said rotation limit lever (25) is connected to one end of said rotation limit knob (29) through said rotation cover (5).

5. Clip applier according to claim 4, characterized in that a semi-sphere (36) is provided on the lower surface of the other end of the rotation limiting button (29), a plurality of semi-sphere grooves (37) are provided on the rotation upper shell (3) and the rotation cover (5), and the semi-sphere (36) can be clamped in the semi-sphere grooves (37).

6. The clip applier of claim 3, wherein said rotating assembly further comprises a clip (30), a section of said clip (30) near said proximal end being a cylindrical section, a section near said distal end being a square post section, said distal end of said clip (30) being provided with a clip groove, a circular post section of said clip (30) being located in said axial through-hole of said threaded push rod (6), said square post section being located in said axial through-hole of said central bar (10).

7. Clip applier according to claim 6, characterized in that on the left and right sides of the proximal end of the threaded push rod (6), pushing handles (20) are respectively provided perpendicular to the threaded push rod (6), a clip rod jackscrew (21) is provided to pass through the pushing handles (20), and the threaded push rod (6) is in contact with the outer surface of the clip rod (30).

8. The clip applier according to claim 1, wherein a thrust spring (31) is provided between a proximal end of the outer tube (14) and a distal end of the main body housing, one end of the thrust spring (31) is a small-diameter end, the other end is a large-diameter end, the small-diameter end is abutted against the outer tube (14), and the large-diameter end is abutted against the distal end of the main body housing.

9. Clip applier according to claim 1, characterized in that the clip (16) comprises an upper clip (32), a lower clip (33) and a clip spring (34), the proximal ends of the upper clip (32) and the lower clip (33) being rotatably connected by a clip pin, the clip spring (34) being connected to the clip pin, both ends of the clip spring (34) expanding the upper clip (32) and the lower clip (33).

10. The clip applier according to claim 1, wherein a proximal end of said center bar (10) is a center bar clamping shaft (35), a snap ring is provided at a proximal end of said center bar clamping shaft (35), a snap ring groove is provided at an inner wall of said main body housing, and the snap ring is clamped in said snap ring groove.