CN216417271U

CN216417271U - Head-fetching device for hip joint replacement

Info

Publication number: CN216417271U
Application number: CN202122788642.0U
Authority: CN
Inventors: 余志勇; 黄涛; 熊巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-03
Anticipated expiration: 2031-11-15

Abstract

The utility model provides a get first ware for among hip joint replacement, the effectual conventional clinical use of having solved is because the frictional force between with the bone is not enough to can't firmly hold the femoral head, easy landing often need operate repeatedly many times, just can get out the femoral head, and extravagant operation time sometimes even because it is not good to put into the position to get first ware, still can lead to acetabular bone cartilage and sclerotin to be injured the problem, includes the stand, the upper end fixedly connected with handle of stand, the middle part sliding connection of stand have the movable plate that can reciprocate, the lower part of movable plate evenly articulates has a plurality of first connecting rod, and the lower extreme of first connecting rod can be along with reciprocating of movable plate and simultaneously inwards or outside removal.

Description

Head-taking device for hip joint replacement

Technical Field

The utility model belongs to the technical field of the supplementary technique of medical treatment and specifically relates to a take head ware for among hip joint replacement.

Background

At present, the artificial total hip joint replacement and the artificial femoral head replacement are the most effective means for treating the final stage lesion of the hip joint, in the operation process, the diseased femoral head needs to be taken out, because the diseased femoral head is protected by surrounding soft tissues and ligaments and is proliferated and hardened, the diseased femoral head is often difficult to take out in the operation process.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a get first ware for among hip joint replacement, through this design effectually solved conventional clinical use get first ware because with the bone between the frictional force not enough to unable firmly hold the femoral head, easy landing often need operate repeatedly many times, just can take out the femoral head, extravagant operating time, sometimes even because it is not good to get first ware to put into the position, still can lead to acetabular bone cartilage and sclerotin to be injured the problem.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model discloses a stand, the upper end fixedly connected with handle of stand, the middle part sliding connection of stand have the movable plate that can reciprocate, and the lower part of movable plate evenly articulates has the first connecting rod of a plurality of, and the lower extreme of first connecting rod can be followed reciprocating of movable plate and moved to the inboard or the outside simultaneously.

Preferably, the middle part of the upper end of the moving plate is rotatably connected with a rotating ring, the upper end of the rotating ring is fixedly connected with a spring, the upper end of the spring is fixedly connected with a handle, and the upper part of the left end of the rotating ring is fixedly connected with a pull rod.

Preferably, the lower extreme of stand rotates and is connected with the fixed plate, and the middle part inboard of every first connecting rod articulates respectively has the second connecting rod, and the inboard and the fixed plate of second connecting rod are articulated mutually.

The utility model discloses novel structure, the design is ingenious, and easy operation is convenient, through this design effectually solved conventional clinical use get first ware because with the bone between the frictional force not enough to can't firmly hold the femoral head, easy landing often need operate repeatedly many times, just can take out the femoral head, extravagant operating time, sometimes even because get first ware to put into the position not good, still can lead to acetabular bone cartilage and sclerotin to be damaged problem.

Drawings

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is a schematic view of the first connecting rod and the fixing plate of the present invention.

Reference numbers in the figures: 1. a handle; 2. a spring; 3. a pull rod; 4. moving the plate; 5. a first link; 6. a second link; 7. a fixing plate; 8. a column; 9. and (6) rotating the ring.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-2.

The utility model discloses a stand 8, the upper end fixedly connected with handle 1 of stand 8, the middle part sliding connection of stand 8 has movable plate 4 that can reciprocate, and the lower part of movable plate 4 evenly articulates there is the first connecting rod 5 of a plurality of, and the lower extreme of first connecting rod 5 can be along with reciprocating of movable plate 4 and move to the inboard or outside simultaneously.

The utility model discloses when using, the lower part that the movable plate 4 moved up and drive first connecting rod 5 moves to the inboard simultaneously to press from both sides tight the inside femoral head of first connecting rod 5, make the femoral head can not the landing, avoided the problem that the femoral head could just be got rid of in multiple operation, improved medical staff's work efficiency, the movable plate 4 when moving up can make stand 8 move down, thereby make medical staff can be more laborsaving twist the screw thread ware of taking one's head of stand lower extreme in to the spongy bone of femoral head.

The middle part of the upper end of the moving plate 4 is rotatably connected with a rotating ring 9, the upper end of the rotating ring 9 is fixedly connected with a spring 2, the upper end of the spring 2 is fixedly connected with a handle 1, and the upper part of the left end of the rotating ring 9 is fixedly connected with a pull rod 3.

When the lower end of the upright post 8 is aligned with the femoral head preset position, a medical worker holds the handle and the pull rod 3 by hands, the pull rod 3 drives the moving plate 4 to move upwards at the moment, the elastic force generated by the spring 2 can enable the first connecting rod 5 to open the clamped femoral head after the medical worker looses the hands, the medical worker can hold the handle 1 and the pull rod 3 to rotate after the clamping, the moving plate 4 is pulled by the rotating ring 9 to be prevented from moving downwards, and the rotating ring 9 rotates on the moving plate 4 along with the handle 1 at the moment, so that the femoral head can be clamped and screws can be screwed into the femoral head.

The lower extreme of stand 8 rotates and is connected with fixed plate 7, and the middle part inboard of every first connecting rod 5 articulates respectively has second connecting rod 6, and the inboard and fixed plate 7 of second connecting rod 6 are articulated each other.

When the moving plate 4 moves upwards, the lower part of the moving plate 4 pulls the upper part of the first connecting rod 5 to move the first connecting rod 5 upwards, the outer end of the second connecting rod 6 is pulled to deviate towards the inner circular arc, and the outer end of the second connecting rod 6 pulls the middle part of the first connecting rod 5 to deviate the lower part of the first connecting rod 5 towards the inner side so as to clamp the femoral head.

When the utility model is used, when the lower end of the stand column 8 is aligned with the femoral head and is preset into a position, the medical staff holds the handle and the pull rod 3, the pull rod 3 can drive the moving plate 4 to move upwards, the upper part of the first connecting rod 5 is pulled by the lower part of the moving plate 4 to move the first connecting rod 5 upwards, the outer end of the second connecting rod 6 is pulled to deflect towards the inner circular arc, the middle part of the first connecting rod 5 is pulled by the outer end of the second connecting rod 6 to deflect towards the inner side by the lower part of the first connecting rod 5 to clamp the femoral head, so that the femoral head can not slide off, the problem that the femoral head can be removed by a plurality of operations is avoided, the stand column 8 can move downwards when the moving plate 4 moves upwards, so that the medical staff can more laborsavingly press the thread head taking device at the lower end of the stand column to screw the femoral head into the bone, the cancellous bone can be rotated by holding the handle 1 and the pull rod 3 after clamping, the rotating ring 9 pulls the moving plate 4 to prevent the moving plate from moving downwards, the swivel ring 9 is rotatory along with handle 1 on movable plate 4 this moment to can keep pressing from both sides tight femoral head in screwing the femoral head with the ware of taking the head of stand lower extreme, the elasticity that spring 2 produced can make first connecting rod 5 remove to the outside simultaneously after medical personnel loosen hand, thereby relieve the femoral head, the utility model discloses an use medical staff's work efficiency has been improved, the use risk has been reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a take head ware for among hip joint replacement, includes stand (8), its characterized in that, the upper end fixedly connected with handle (1) of stand (8), the middle part sliding connection of stand (8) has movable plate (4) that can reciprocate, and the even articulated first connecting rod of a plurality of (5) that has in lower part of movable plate (4), the lower extreme of first connecting rod (5) can be along with reciprocating of movable plate (4) and move to inboard or outside simultaneously.

2. The extractor for hip joint replacement according to claim 1, wherein the middle part of the upper end of the moving plate (4) is rotatably connected with a rotating ring (9), the upper end of the rotating ring (9) is fixedly connected with a spring (2), the upper end of the spring (2) is fixedly connected with the handle (1), and the upper part of the left end of the rotating ring (9) is fixedly connected with a pull rod (3).

3. The extractor for hip joint replacement according to claim 1, wherein the lower end of the upright post (8) is rotatably connected with a fixing plate (7), the inner side of the middle part of each first connecting rod (5) is hinged with a second connecting rod (6), and the inner side of the second connecting rod (6) and the fixing plate (7) are hinged with each other.