CN220530077U

CN220530077U - Multi-angle adjustable gun type rongeur for spine

Info

Publication number: CN220530077U
Application number: CN202321971003.0U
Authority: CN
Inventors: 何观平
Original assignee: Beijing Chaoyang Hospital
Current assignee: Beijing Chaoyang Hospital
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-02-27
Anticipated expiration: 2033-07-25

Abstract

The utility model discloses gun-type rongeur for multi-angle adjustable spine, which comprises a hinging seat, a worm wheel and a worm. This gun-type rongeur for multi-angle adjustable backbone, go up fixedly connected with articulated seat on the pincers, fixedly connected with fixed axle on the articulated seat, the outside rotation of fixed axle is connected with the dwang, goes up the pincers rotation and runs through there is the extension axle, and the one end of extension axle extends to the dwang top and fixedly connected with worm, fixedly connected with corresponds and worm wheel of adaptation on the dwang, worm wheel and worm drive are connected, the other end fixedly connected with twist grip of extension axle, worm wheel and fixed axle set up with one heart to can drive the extension axle through the twist grip and rotate, drive the rotation of worm wheel through the worm, thereby drive the rotation of dwang cover fixed axle, with the novel movable pincers that set up a rotatable on original last pincers, the movable pincers can use the fixed axle to carry out the deflection of angle as the axle through the dwang, the decompression of the adaptation clinical specific position that like this can be fine.

Description

Multi-angle adjustable gun type rongeur for spine

Technical Field

The utility model relates to the technical field of rongeurs, in particular to a gun rongeur for multi-angle adjustable spinal column.

Background

The laminar rongeur, also called gun rongeur, is the most important tool in spinal surgery decompression, especially in anterior cervical surgery or minimally invasive lumbar surgery, because the epidural space at this lumbar region is smaller and the space available for gun rongeurs is also smaller. It is important if the gun pliers can be used more compact, lightweight and efficiently.

An existing gun-type rongeur, such as the patent issued with the publication number CN204542298U, comprises an upper forceps and a lower forceps; the tail end of the upper clamp is connected with the movable handle through the first hinge part, the fixed handle is provided with an interface connected with the air aspirator, and the fixed handle and the lower clamp are internally provided with pipelines communicated with the interface; an aspirator outlet communicated with the pipeline is arranged at the lower occlusion port of the lower forceps head end; the middle sections of the upper clamp and the lower clamp are transversely bent.

The angles of the current gun rongeurs cannot be adjusted at will, are all fixed angles, and cannot be well adapted to the pressure reduction of specific clinical sites. Therefore, improvements are needed.

Disclosure of Invention

The utility model aims to provide gun-type rongeur for multi-angle adjustable spine, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a gun-type rongeur for multi-angle adjustable backbone, including lower pincers, articulated have the digging arm on the lower pincers, the digging arm articulates through the round pin axle has the pincers, go up pincers and lower pincers sliding connection, go up fixedly connected with articulated seat on the pincers, fixedly connected with fixed axle on the articulated seat, the outside rotation of fixed axle is connected with the rotor, it runs through to go up the pincers internal rotation has the extension axle, the one end of extension axle extends to rotor top and fixedly connected with worm, fixedly connected with corresponds and the worm wheel of adaptation on the rotor, fixedly connected with movable pincers on the rotor, fixedly connected with stay cord on the lower pincers, the stay cord runs through movable pincers and with movable pincers sliding connection, the terminal fixedly connected with slider of stay cord, slider and movable pincers sliding connection, fixedly connected with interlock piece on the slider, interlock piece and movable pincers sliding connection.

As a further scheme of the utility model: the movable arm is provided with a first elastic piece through a bolt, the lower clamp is provided with a second elastic piece through a bolt, and the first elastic piece is hinged with the second elastic piece. Through the arrangement of the first elastic sheet and the second elastic sheet, the reset after the operation is convenient.

As still further aspects of the utility model: the lower pliers are provided with anti-slip protrusions, and the anti-slip protrusions and the lower pliers are of an integrated structure. Through the arrangement of the anti-slip bulges, the operation is convenient.

As still further aspects of the utility model: the movable clamp is internally and fixedly connected with a rubber plug which is in sliding connection with the pull rope. Through the setting of plug, can reduce the wearing and tearing between stay cord and the movable clamp.

As still further aspects of the utility model: the movable pliers are internally provided with a first auxiliary wheel and a second auxiliary wheel which are in sliding connection with the pull rope. Through the setting of first auxiliary wheel and second auxiliary wheel, have the effect of supplementary slip to the stay cord.

As still further aspects of the utility model: the movable pliers are internally and fixedly connected with guide rods which are in sliding connection with the sliding blocks. Through the setting of guide bar, have the guide effect to the removal of slider and interlock piece.

As still further aspects of the utility model: the outside of guide bar is provided with the second spring, the one end and the slider fixed connection of second spring, the other end fixed connection of second spring is in the internal surface of movable clamp. By providing the second spring, the spring force can be applied to the engagement block via the slider.

As still further aspects of the utility model: the movable arm is provided with a strip opening which is used for the pin shaft to penetrate through and move, and the pin shaft penetrates through and is fixedly connected to the upper pliers, so that the upper pliers can be driven to move when the movable arm moves.

As still further aspects of the utility model: the worm wheel is connected with the worm in a transmission way, the rotating handle is fixedly connected with the other end of the extension shaft, and the worm wheel and the fixed shaft are concentrically arranged, so that the extension shaft can be driven to rotate through the rotating handle, the worm wheel is driven to rotate through the worm, and the rotating block is driven to cover the fixed shaft to rotate.

As still further aspects of the utility model: the upper clamp is fixedly connected with a convex block, the convex block is inserted into the lower clamp and is in sliding connection with the lower clamp, and a sliding groove for the convex block to be inserted into and slide is formed in the lower clamp, so that the lower clamp and the upper clamp are maintained in sliding connection through the cooperation of the convex block and the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the rotatable movable clamp is arranged on the original upper clamp, and the movable clamp can deflect by taking the fixed shaft as the axis through the rotating block, so that the pressure reduction of a specific clinical part can be well adapted, the extending shaft is arranged in the upper clamp, the rotating block is driven to deflect by taking the fixed shaft as the axis through the cooperation of the worm and the worm wheel, and meanwhile, the rotating block is limited through the self-locking effect of the worm and the worm wheel, so that the stability of the movable clamp is ensured.

Drawings

Fig. 1 is a perspective view of the overall structure of a multi-angle adjustable spinal gun-type rongeur.

Fig. 2 is a front cross-sectional view of fig. 1 in a multi-angle adjustable spinal gun-type rongeur.

Fig. 3 is an enlarged view of the portion a of fig. 2 of the multi-angle adjustable spinal gun-type rongeur.

Fig. 4 is an enlarged view of the structure of portion B of fig. 2 in a multi-angle adjustable spinal gun-type rongeur.

In the figure: 1. a lower clamp; 2. a movable arm; 3. an upper clamp; 4. a convex block; 5. a first elastic sheet; 6. a second spring plate; 7. a slip preventing protrusion; 8. a hinge base; 9. a fixed shaft; 10. a rotating block; 11. a movable clamp; 12. an extension shaft; 13. a worm; 14. a rotating handle; 15. a worm wheel; 16. a pull rope; 17. a rubber plug; 18. a first auxiliary wheel; 19. a second auxiliary wheel; 20. a slide block; 21. a bite block; 22. a guide rod; 23. and a second spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the multi-angle adjustable gun-type rongeur for spinal column comprises a lower forceps 1, an upper forceps 3 and a guide rod 22, wherein a movable arm 2 is hinged on the lower forceps 1, an upper forceps 3 is hinged on the movable arm 2, a strip opening for a pin shaft to penetrate and move is formed in the movable arm 2, the pin shaft penetrates and is fixedly connected to the upper forceps 3, the upper forceps 3 and the lower forceps 1 are in sliding connection, a cam 4 is fixedly connected to the upper forceps 3, the cam 4 is inserted into the lower forceps 1 and is in sliding connection with the lower forceps 1, a sliding groove for the cam 4 to be inserted into and slide is formed in the lower forceps 1, the lower forceps 1 and the upper forceps 3 are maintained to be in sliding connection with the movable arm 2 through the cooperation of the cam 4 and the sliding groove, a first elastic sheet 5 is mounted on the lower forceps 1 through a bolt, a second elastic sheet 6 is mounted on the lower forceps 1 through the bolt, the first elastic sheet 5 and the second elastic sheet 6 are hinged, the reset after operation is facilitated through the arrangement of the first elastic sheet 5 and the second elastic sheet 6, an anti-slip protrusion 7 is arranged on the lower forceps 1, and the cam 7 and the lower forceps 1 are in an integrated structure. By the arrangement of the stud 7, the operation is facilitated.

Referring to fig. 1, 2 and 3, a hinge seat 8 is fixedly connected to the upper clamp 3, a fixed shaft 9 is fixedly connected to the hinge seat 8, a rotating block 10 is rotatably connected to the outer portion of the fixed shaft 9, an extension shaft 12 is rotatably penetrated through the upper clamp 3, one end of the extension shaft 12 extends to the upper portion of the rotating block 10 and is fixedly connected with a worm 13, a worm wheel 15 which corresponds to and is matched with the worm 13 is fixedly connected to the rotating block 10, the worm wheel 15 is in transmission connection with the worm 13, a rotating handle 14 is fixedly connected to the other end of the extension shaft 12, and the worm wheel 15 is concentrically arranged with the fixed shaft 9, so that the extension shaft 12 can be driven to rotate through the rotating handle 14, and a worm wheel 1515 is driven to rotate through the worm 13, so that the rotating block is driven to rotate around the fixed shaft 9.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a pull rope 16 is fixedly connected to the lower clamp 1, the pull rope 16 penetrates through the movable clamp 11 and is in sliding connection with the movable clamp 11, a rubber plug 17 is fixedly connected to the movable clamp 11, the rubber plug 17 is in sliding connection with the pull rope 16, abrasion between the pull rope 16 and the movable clamp 11 can be reduced through the arrangement of the rubber plug 17, a first auxiliary wheel 18 and a second auxiliary wheel 19 are arranged in the movable clamp 11, the first auxiliary wheel 18 and the second auxiliary wheel 19 are in sliding connection with the pull rope 16, the first auxiliary wheel 18 and the second auxiliary wheel 19 have an auxiliary sliding function on the pull rope 16, the tail end of the pull rope 16 is fixedly connected with a sliding block 20, the sliding block 20 is in sliding connection with the movable clamp 11, a meshing block 21 is fixedly connected to the sliding block 20, a guide rod 22 is fixedly connected to the sliding block 20 in the movable clamp 11, one end of the guide rod 22 is provided with the sliding block 20 through the arrangement of the guide rod 22, the sliding block 20 and the movement of the sliding block 21 has a guide function on the sliding block 20, and one end of the guide rod 22 is fixedly connected to the other end of the sliding block 23 of the sliding block 20 is fixedly connected to the sliding block 23. By the provision of the second spring 23, an elastic force can be exerted on the snap-in block 21 via the slider 20.

The working principle of the utility model is as follows:

when the combined clamp is used, firstly, a doctor holds the lower clamp 1 and the movable arm 2, the thumb can press the anti-slip bulge 7, then the lower clamp 1 and the movable arm 2 are contracted, at the moment, the first elastic piece 5 and the second elastic piece 6 are pressed and contracted inwards, the upper clamp 3 slides relative to the lower clamp 1 under the drive of the movable arm 2, then the lower clamp 1 slides in the movable clamp 11 under the guide of the guide rod 22 by pulling the sliding block 20 through the pull rope 16, the occluding block 21 is driven to approach towards the direction of the movable clamp 11, then the movable clamp 11 is combined to clamp, and after the holding force of the lower clamp 1 and the movable arm 2 is removed, the occluding block 21 is reset under the action of the second spring 23 and the first elastic piece 5 and the second elastic piece 6 for next use;

if the angle of the movable clamp 11 needs to be adjusted, the rotating handle 14 is rotated, so that the extension shaft 12 is driven to rotate, the worm 13 is further driven to rotate, the rotating block 10 is driven to deflect at an angle by taking the fixed shaft 9 as the axis through the cooperation of the worm 13 and the worm wheel 15, and the movable clamp 11 can deflect at an angle by taking the fixed shaft 9 as the axis through the rotating block 10, so that the pressure reduction of a clinical specific part can be well adapted, and meanwhile, the rotating block 10 is limited through the self-locking effect of the worm 13 and the worm wheel 15, so that the stability of the movable clamp 11 is ensured.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Multi-angle adjustable spine gun-type rongeur comprises a lower forceps (1), and is characterized in that: the utility model provides a lower pincers (1) are last to be articulated have movable arm (2), movable arm (2) are articulated to have pincers (3) through the round pin axle, go up pincers (3) and lower pincers (1) sliding connection, go up fixedly connected with articulated seat (8) on pincers (3), fixedly connected with fixed axle (9) on articulated seat (8), the outside rotation of fixed axle (9) is connected with rotating block (10), upward pincers (3) internal rotation runs through has extension axle (12), the one end of extension axle (12) extends to rotating block (10) top and fixedly connected with worm (13), fixedly connected with corresponds and worm wheel (15) of adaptation with worm (13) on rotating block (10), fixedly connected with movable pincers (11) on rotating block (10), fixedly connected with stay cord (16) on lower pincers (1), stay cord (16) run through movable pincers (11) and with movable pincers (11) sliding connection, the end fixedly connected with slider (20) of stay cord (16), slider (20) and movable pincers (11) sliding connection, fixedly connected with interlock piece (21) on slider (20).

2. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the movable arm (2) is provided with a first elastic piece (5) through a bolt, the lower clamp (1) is provided with a second elastic piece (6) through a bolt, and the first elastic piece (5) and the second elastic piece (6) are elastically hinged.

3. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the anti-slip clamp is characterized in that an anti-slip boss (7) is arranged on the lower clamp (1), and the anti-slip boss (7) and the lower clamp (1) are of an integrated structure.

4. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the movable clamp (11) is internally and fixedly connected with a rubber plug (17), and the rubber plug (17) is in sliding connection with the pull rope (16).

5. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the movable clamp (11) is internally provided with a first auxiliary wheel (18) and a second auxiliary wheel (19), and the first auxiliary wheel (18) and the second auxiliary wheel (19) are in sliding connection with a pull rope (16).

6. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: a guide rod (22) is fixedly connected in the movable clamp (11), and the guide rod (22) is in sliding connection with the sliding block (20).

7. The multi-angle adjustable spinal gun-type rongeur of claim 6, wherein: the outside of guide bar (22) is provided with second spring (23), the one end and the slider (20) fixed connection of second spring (23), the other end fixed connection of second spring (23) is in the internal surface of activity pincers (11).

8. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the movable arm (2) is provided with a strip opening which is used for the pin shaft to penetrate through and move, and the pin shaft penetrates through and is fixedly connected to the upper clamp (3).

9. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the worm wheel (15) is in transmission connection with the worm (13), the other end of the extension shaft (12) is fixedly connected with the rotating handle (14), and the worm wheel (15) and the fixed shaft (9) are concentrically arranged.

10. The multi-angle adjustable spinal gun-type rongeur of claim 1, wherein: the upper clamp (3) is fixedly connected with a convex block (4), the convex block (4) is inserted into the lower clamp (1) and is in sliding connection with the lower clamp (1), and a sliding groove for inserting and sliding the convex block (4) is formed in the lower clamp (1).