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A spinal spinous process distraction device

A spine spinous process and spinous process technology, applied in the field of medical machinery, can solve problems such as spinous process injury, and achieve the effect of ensuring stability and avoiding spinous process dislocation injury.

Active Publication Date: 2022-01-18
常熟市第二人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the distance between two adjacent spinous processes is opened in the above scheme, the spinous processes are subjected to lateral thrust, which may cause damage to the spinous processes.

Method used

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  • A spinal spinous process distraction device
  • A spinal spinous process distraction device
  • A spinal spinous process distraction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 1 to Figure 4 As shown, the present invention provides a spinal spinous process 1 expansion device, the expansion device is arranged between two adjacent spinous processes 1, the expansion device includes: a support 2, the support 2 There are two support parts 21 arranged at intervals, each support part 21 is provided with a support groove 211, and the opening directions of the two support grooves 211 are opposite, and the two spinous processes 1 are suitable for one-to-one correspondence extend into the two support grooves 211; the telescopic member 3 is telescopic in the first direction, and the two ends of the telescopic member 3 are connected to the two support members 2 one by one; the driving member 4, The driving member 4 includes a first connecting rod 41 and a second connecting rod 42, one end of the first connecting rod 41 is rotatably connected to one of the supporting members 2, and the other end of the connecting rod is rotated by a rotating...

Embodiment 2

[0043] The difference between this embodiment and the above embodiment is that: the inner surface of the support groove 211 will be provided with a plurality of elastic protrusions 212, and each of the elastic protrusions 212 supports the spinous process 1 on the corresponding side. superior. Thereby, the function of elastic support is played, and the spinous process 1 in the support groove 211 is prevented from being damaged.

[0044] In some embodiments of the present invention, the telescopic member 3 includes a first telescopic part 31 and a second telescopic part 32, and the first telescopic part 31 and the second telescopic part 32 are in one-to-one correspondence with the two telescopic parts. The support member 2 is connected, the first connection part is provided with a telescopic groove 311, the second telescopic part 32 is slidably arranged in the telescopic groove 311, and the positioning part 5 is used to move the second telescopic part 32 The portion 32 is posit...

Embodiment 3

[0053] The difference between this embodiment and the above-mentioned embodiments is that: both the first telescopic part 31 and the second telescopic part 32 can be swingably arranged on the support member 2 on the corresponding side. It can be understood that, by making the first telescopic part 31 swingably arranged on the support member 2 on the corresponding side, the first telescopic part 31 can swing in a certain range in the second direction, avoiding the first telescopic part 31 It is rigidly connected to the support 2 on the corresponding side. By making the second telescopic part 32 swingably arranged on the support member 2 on the corresponding side, the second telescopic part 32 can swing in a certain range in the second direction, avoiding the support of the second telescopic part 32 and the corresponding side Piece 2 is rigidly connected.

[0054] In some embodiments of the present invention, each support part 21 is provided with a slot 213 on the side facing t...

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Abstract

The present invention relates to the technical field of medical equipment, and provides a spinal spinous process distraction device, comprising: a support member has two support parts arranged at intervals, each support part is provided with a support groove, and the opening direction of the two support grooves is On the contrary, the two spinous processes are adapted to extend into the two supporting grooves in a one-to-one correspondence; the telescopic element is telescopic in the first direction, and the two ends of the telescopic element are connected to the two support elements in a one-to-one correspondence; the driving element includes The first connecting rod and the second connecting rod, one end of the first connecting rod is rotatably connected to one of the supports, the other end of the connecting rod is rotatably connected to one end of the second connecting rod through a rotating shaft, and the other end of the second connecting rod is rotated It is connected to another supporting member; the two ends of the positioning member are respectively connected with the telescopic member and the rotating shaft. The present invention uses the first connecting rod and the second connecting rod to respectively push the support members on the corresponding sides to move in the first direction, so as to prevent the spinous processes from being pushed in other directions, thereby preventing the spinous processes from being misplaced and damaged.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a spinal spinous process distraction device. Background technique [0002] In the prior art, the distance between two adjacent spinous processes of the spine is reduced, thereby compressing the spinal cord nerve root, resulting in numbness or pain in the patient. At present, the two adjacent spinous processes are mainly pulled apart by a distraction device The distance between them, for example, the patent document whose application number is CN200610011642.7, discloses a kind of spinal spinous process distracting device, especially refers to a kind of device applied between adjacent spinous processes of the spine, connected with a plurality of rotatable The stretcher is a device for stretching the spinous processes of adjacent vertebrae by relative rotation to increase the included angle so as to stretch the intervertebral space between adjacent vertebrae. A spinal sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/70
CPCA61B17/7065A61B17/7067
Inventor 潘文明
Owner 常熟市第二人民医院
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