CN216702583U

CN216702583U - Novel atlantoaxial dislocation posterior distraction reduction tool

Info

Publication number: CN216702583U
Application number: CN202123120354.4U
Authority: CN
Inventors: 沈翀; 肖荣驰; 李志敏
Original assignee: Affiliated Hospital of Guilin Medical University
Current assignee: Affiliated Hospital of Guilin Medical University
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2022-06-10
Anticipated expiration: 2031-12-11

Abstract

The utility model belongs to the field of medical equipment, in particular to a novel atlantoaxial dislocation posterior distraction reduction tool, which aims at the problems of inconvenient use and certain risk when the existing bone knife is used for supporting the skull, and proposes the following scheme that the utility model comprises a first supporting plate and a second supporting plate, wherein the first supporting plate and the second supporting plate are rotationally connected, the left side of the first supporting plate and the left side of the second supporting plate are both fixedly provided with bone knives, and the front side and the rear side of the first supporting plate are both connected with sliding components. Thus being convenient to use.

Description

Novel atlantoaxial dislocation posterior distraction reduction tool

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel atlantoaxial dislocation posterior distraction reduction tool.

Background

Atlantoaxial dislocation often accessible skull traction resets, when running into difficult renaturation dislocation, skull traction can't reset, need to be passed through the mouth from the way of the front and loosen, and scholars try to loosen from the way of the back, inserts the atlantoaxial lateral mass with the osteotome and separates, and rotatory sled is moved, also has certain effect.

The osteotome needs to be inserted from the upper part of the pedicle of the dentata, but the width of the pedicle of the vertebra is averagely 7mm, the inner side of the pedicle of the vertebra is a spinal cord, the outer side of the pedicle of the vertebra is a vertebral artery, and the osteotome which is too wide has the risk of damaging inner and outer tissues, so that the osteotome which is too wide is not easy to put in, and the reduction height is limited within 7mm and can not exceed 10 mm. Furthermore, the reduction is realized by the rotary osteotome, and the contact surface is too small after the rotation, which is easy to cause fracture of the supporting part, so a novel atlantoaxial dislocation posterior distraction reduction tool is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of inconvenient use and certain risk when the current supporting osteotome supports the skull in the prior art, and provides a novel atlantoaxial dislocation posterior distraction reduction tool.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel extensive region dentata dislocation back way struts instrument that resets, includes first backup pad and second backup pad, first backup pad and second backup pad rotate to be connected, the equal fixed mounting in left side of first backup pad and the left side of second backup pad has the osteotome, first backup pad front side and rear side all are connected with sliding assembly, and are connected with same door type frame on two sliding assembly, the right side top fixed mounting of door type frame has the connecting rod, the right-hand member of connecting rod rotates and is connected with the dwang, and the bottom of dwang is rotated with the top of second backup pad and is connected, the top of second backup pad is connected with drive assembly, and drive assembly is connected with the connecting rod.

Preferably, including gag lever post and spacing ring on the slip subassembly, gag lever post fixed mounting is on first backup pad, the spacing ring slip cover is established on the gag lever post, and two spacing rings rotate with the rear side bottom inner wall and the front side bottom inner wall of door type frame respectively and are connected, sets up gag lever post and spacing ring and carries out sliding connection, can drive first backup pad and rotate downwards when the door type frame carries out the downward camber and removes.

Preferably, the transmission assembly comprises a threaded component, a connecting cover and a limiting component, the threaded component is connected with the top of the second supporting plate, the connecting cover is connected with the top of the second supporting plate in a sliding mode, the threaded component is connected with the connecting cover, the limiting component is respectively connected with the connecting rod and the connecting cover, the transmission assembly is arranged, the connecting cover can be driven to move through operation of the threaded component, and transmission of the connecting cover can be conveniently achieved.

Preferably, the threaded member is provided with a screw and a threaded plate, the screw is rotatably connected to the top of the second support plate, the threaded plate is fixedly mounted at the bottom of the rear side of the connecting cover, the screw penetrates through the threaded plate and is in threaded connection with the threaded plate, and the connecting cover can be driven to move transversely in the left-right direction by rotating the screw and performing threaded transmission with the threaded plate.

Preferably, the limiting component comprises a supporting rod, a connecting ring and a connecting shaft, the supporting rod is fixedly installed in the connecting cover, the connecting ring is sleeved on the supporting rod in a sliding mode, the rear end of the connecting shaft extends into the connecting cover and is fixedly connected with the front side of the connecting ring, the connecting shaft penetrates through the connecting rod and is connected with the connecting rod in a rotating mode, the limiting component is arranged to limit the connecting rod in a longitudinal sliding mode, and the connecting rod can freely move up and down.

Preferably, the support rod is sleeved with a compression spring positioned below the connecting ring, the top end and the bottom end of the compression spring are respectively and fixedly connected with the bottom of the connecting ring and the inner wall of the bottom of the connecting cover, and the compression spring is arranged to provide necessary auxiliary force when the connecting rod is reset upwards.

Has the advantages that:

1. according to the skull supporting device, after the two osteotomes are inserted into a skull, the screw rod can be rotated to drive the thread plate to move towards the right side, the connecting cover can be driven to move when the thread plate moves, the connecting rod can be driven to move towards the right side under the action of the thrust of the supporting rod, the connecting rod can be driven to rotate downwards under the action of the thrust of the connecting rod, the connecting rod can be driven to move downwards at the moment, the first supporting plate can be pushed to rotate downwards through the portal frame, the angle between the first supporting plate and the second supporting plate can be expanded at the moment, the two osteotomes are far away from each other until the two osteotomes are contacted with bones, and the skull can be supported;

2. according to the utility model, the connecting cover is driven to move transversely by adopting a thread transmission mode, and the self-locking characteristic of the thread transmission can be utilized, so that the first supporting plate and the second supporting plate can be limited at any angle, and therefore, good supporting capability can be provided, and the connecting cover has good convenience in operation.

According to the bone knife, the angle between the first supporting plate and the second supporting plate can be adjusted by rotating the screw rod, so that the distance between the two bone knives can be adjusted, the size can be adjusted at will when the bone knife is used, and compared with a traditional supporting device, the bone knife does not need to be rotated in the technical scheme, so that the bone knife has good safety, and the bone knife can be conveniently used.

Drawings

FIG. 1 is a front view of the structure of a novel atlantoaxial dislocation posterior distraction reduction tool provided by the utility model;

FIG. 2 is a structural side view of the novel atlantoaxial dislocation posterior distraction reduction tool provided by the utility model;

FIG. 3 is a three-dimensional rear view of the screw, the connecting cover and the connecting rod connecting structure of the novel atlantoaxial dislocation posterior distraction reduction tool provided by the utility model;

fig. 4 is a side view of the internal structure of the connecting hood of the novel atlantoaxial dislocation posterior distraction reduction tool provided by the utility model.

In the figure: 1 first supporting plate, 2 second supporting plates, 3 limiting rods, 4 limiting rings, 5 door-shaped frames, 6 connecting rods, 7 rotating rods, 8 connecting covers, 9 supporting rods, 10 compression springs, 11 osteotomes, 12 screw rods, 13 thread plates, 14 connecting rings and 15 connecting shafts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a novel atlantoaxial dislocation posterior distraction reduction tool comprises a first support plate 1 and a second support plate 2, wherein the first support plate 1 and the second support plate 2 are rotatably connected, a osteotome 11 is fixedly arranged on both the left side of the first support plate 1 and the left side of the second support plate 2, the osteotome 11 is arranged to support the skull, sliding components are connected to the front side and the rear side of the first support plate 1, the two sliding components are connected with a same gantry 5, the gantry 5 is arranged to support the first support plate 1, a connecting rod 6 is fixedly arranged on the top of the right side of the gantry 5, a rotating rod 7 is rotatably connected to the right end of the connecting rod 6, the rotating rod 7 is arranged to drive the gantry 5 to longitudinally move when the rotating rod 7 rotates, the bottom end of the rotating rod 7 is rotatably connected to the top of the second support plate 2, and a transmission component is connected to the top of the second support plate 2, and the transmission assembly is connected with the connecting rod 6.

The angle between the first support plate 1 and the second support plate 2 can be adjusted by rotating the screw 12, so that the distance between the two osteotomes 11 can be adjusted, the size can be adjusted at will when the osteotome is used, and compared with a traditional support device, the bone osteotome is not required to be rotated by the technical scheme, so that the bone osteotome has good safety and can be used conveniently.

According to the utility model, the sliding component comprises a limiting rod 3 and limiting rings 4, the limiting rod 3 is fixedly arranged on the first supporting plate 1, the limiting rings 4 are slidably sleeved on the limiting rod 3, the two limiting rings 4 are respectively rotatably connected with the inner wall of the bottom of the rear side and the inner wall of the bottom of the front side of the door-shaped frame 5, the limiting rod 3 and the limiting rings 4 are slidably connected, and the first supporting plate 1 can be driven to rotate downwards when the door-shaped frame 5 moves downwards in an arc shape.

According to the utility model, the transmission assembly comprises a threaded component, a connecting cover 8 and a limiting component, the threaded component is connected with the top of the second supporting plate 2, the connecting cover 8 is connected with the top of the second supporting plate 2 in a sliding manner, the threaded component is connected with the connecting cover 8, the limiting component is respectively connected with the connecting rod 6 and the connecting cover 8, the transmission assembly is arranged, the connecting cover 8 can be driven to move by operating the threaded component, and the connecting cover 8 can be conveniently transmitted.

In the utility model, the screw member comprises a screw 12 and a thread plate 13, the screw 12 is rotatably connected to the top of the second support plate 2, the thread plate 13 is fixedly installed at the bottom of the rear side of the connecting cover 8, the screw 12 penetrates through the thread plate 13 and is in threaded connection with the thread plate 13, and the connecting cover 8 can be driven to transversely move in the left-right direction by rotating the screw 12 and performing threaded transmission with the thread plate 13.

According to the utility model, the limiting component comprises a supporting rod 9, a connecting ring 14 and a connecting shaft 15, the supporting rod 9 is fixedly arranged in the connecting cover 8, the connecting ring 14 is sleeved on the supporting rod 9 in a sliding manner, the rear end of the connecting shaft 15 extends into the connecting cover 8 and is fixedly connected with the front side of the connecting ring 14, the connecting shaft 15 penetrates through the connecting rod 6 and is rotatably connected with the connecting rod 6, and the limiting component is arranged to realize longitudinal sliding limiting on the connecting rod 6, so that the connecting rod 6 can freely move up and down.

In the utility model, the compression spring 10 positioned below the connecting ring 14 is sleeved on the support rod 9, the top end and the bottom end of the compression spring 10 are respectively and fixedly connected with the bottom of the connecting ring 14 and the inner wall of the bottom of the connecting cover 8, and the compression spring 10 is arranged, so that necessary auxiliary force can be provided when the connecting rod 6 is reset upwards.

The working principle is as follows: after the two osteotomes 11 are inserted into the skull, the screw 12 can be rotated to drive the thread plate 13 to move towards the right side, when the thread plate 13 moves, the connecting cover 8 can be driven to move, at the moment, the connecting rod 6 can be driven to move towards the right side under the action of the thrust of the supporting rod 9, the connecting ring 14 and the connecting shaft 15, at the moment, the rotating rod 7 can be driven to rotate downwards under the action of the thrust of the connecting rod 6, at the moment, the connecting rod 6 can move downwards, when the connecting rod 6 moves downwards, the connecting ring 14 can move downwards, pressure is applied to the compression spring 9, so that the compression spring 9 is in a stressed state, and when the compression spring 9 in the stressed state can reset upwards at the connecting rod 6, the connecting ring 14 can be assisted to move upwards, so when the connecting rod 6 moves downwards, accessible portal frame 5 can promote first backup pad 1 and rotate downwards, angle between first backup pad 1 and the second backup pad 2 just can enlarge this moment, make two osteotomes 11 keep away from each other, until with the skeleton contact, can support the skull, the mode that adopts screw drive drives connecting cover 8 and carries out lateral shifting, the characteristic of the auto-lock that can utilize screw drive to have, can both realize spacingly to the arbitrary angle that first backup pad 1 and second backup pad 2 presented, with this can provide good support ability, and when the operation, good convenience has, so when using, can arbitrary regulation size, and compare in traditional supporting instrument, this technical scheme need not to rotate the osteotome, so have good security, therefore can facilitate the use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A novel atlantoaxial dislocation posterior distraction reduction tool comprises a first supporting plate (1) and a second supporting plate (2), wherein the first supporting plate (1) and the second supporting plate (2) are rotationally connected, it is characterized in that a osteotome (11) is fixedly arranged on both the left side of the first supporting plate (1) and the left side of the second supporting plate (2), the front side and the rear side of the first supporting plate (1) are connected with sliding components, and the two sliding components are connected with the same door-shaped frame (5), the top part of the right side of the door-shaped frame (5) is fixedly provided with a connecting rod (6), the right end of the connecting rod (6) is rotatably connected with a rotating rod (7), the bottom end of the rotating rod (7) is rotatably connected with the top of the second supporting plate (2), the top of the second supporting plate (2) is connected with a transmission assembly, and the transmission assembly is connected with a connecting rod (6).

2. The novel atlantoaxial dislocation posterior distraction reduction tool according to claim 1, wherein the sliding component comprises a limiting rod (3) and a limiting ring (4), the limiting rod (3) is fixedly mounted on the first supporting plate (1), the limiting ring (4) is slidably sleeved on the limiting rod (3), and the two limiting rings (4) are respectively rotatably connected with the inner wall of the bottom of the rear side and the inner wall of the bottom of the front side of the gate frame (5).

3. The novel atlantoaxial dislocation posterior distraction reduction tool according to claim 1, comprising a screw member, a connecting cover (8) and a limiting member on the transmission assembly, wherein the screw member is connected with the top of the second support plate (2), the connecting cover (8) is slidably connected with the top of the second support plate (2), the screw member is connected with the connecting cover (8), and the limiting member is respectively connected with the connecting rod (6) and the connecting cover (8).

4. The novel atlantoaxial dislocation posterior distraction reduction tool is characterized in that the threaded component comprises a screw rod (12) and a threaded plate (13), the screw rod (12) is rotatably connected to the top of the second support plate (2), the threaded plate (13) is fixedly installed at the bottom of the rear side of the connecting cover (8), and the screw rod (12) penetrates through the threaded plate (13) and is in threaded connection with the threaded plate (13).

5. The novel atlantoaxial dislocation posterior distraction reduction tool according to claim 3, wherein the limiting member comprises a support rod (9), a connecting ring (14) and a connecting shaft (15), the support rod (9) is fixedly installed in the connecting cover (8), the connecting ring (14) is slidably sleeved on the support rod (9), the rear end of the connecting shaft (15) extends into the connecting cover (8) and is fixedly connected with the front side of the connecting ring (14), and the connecting shaft (15) penetrates through the connecting rod (6) and is rotatably connected with the connecting rod (6).

6. The novel atlantoaxial dislocation posterior distraction reduction tool is characterized in that a compression spring (10) positioned below the connecting ring (14) is sleeved on the supporting rod (9), and the top end and the bottom end of the compression spring (10) are respectively and fixedly connected with the bottom of the connecting ring (14) and the inner wall of the bottom of the connecting cover (8).