Vertebra fusion net cage and driving assembly used in cooperation with vertebra fusion net cage

A technology of driving components and fusion nets, applied in the direction of spinal implants, etc., can solve the problems of difficult fusion of bone grafts, poor fusion effect of upper and lower vertebral bodies, etc., and achieve the effect of promoting self-fusion

Inactive Publication Date: 2022-04-19
LUOYANG ORTHOPEDIC TRAUMATOLOGICAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a cage for vertebral fusion and a matching drive assembly, which can solve the problems th

Method used

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  • Vertebra fusion net cage and driving assembly used in cooperation with vertebra fusion net cage
  • Vertebra fusion net cage and driving assembly used in cooperation with vertebra fusion net cage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a cage for vertebral fusion, please refer to the attached figure 1 ,include:

[0021] Net 1, a plurality of said nets form a cage;

[0022] The supporting member 2, several supporting members 2 are used to connect several said nets 1, and realize the convergence of several said nets 1.

[0023] As a preferred embodiment, the net includes an outer net 11 and an inner net 12, the outer net 11 forms a cylinder, an elliptical column or an arc surface, and the inner net 12 forms a cross structure and then connects the outer net 11.

[0024] As a preferred embodiment, the support member is provided with an adjustment assembly 3 and a limit assembly 4, the adjustment assembly 3 is used to connect several of the outer nets 11 and restrain several of the outer nets 11, and the limit assembly 4. Fix the bundled outer net 11 or the adjustment assembly 3 on the support 2 .

[0025] As a preferred embodiment, the support member 2 is a hollow cylinder, an...

Embodiment 2

[0030] This embodiment provides a driving assembly, which is used in conjunction with the vertebral fusion cage in Embodiment 1, please refer to the attached figure 2 , the driving assembly 5 includes jaws matching the micro gear 32 and the elastic pin 41 , for adjusting the state of the elastic pin 41 and driving the micro gear 32 and the roller 31 to rotate.

[0031] As a preferred embodiment, the jaw includes a drive shaft 51 and a bevel gear 52, one end of the drive shaft 51 is connected to the driving device, and one end is fixedly connected to the bevel gear 52; the bevel gear 52 enters through the adjustment hole 22 Inside the cylinder, the gear teeth compress the elastic pin 41 into a contracted state, release the micro gear 32, the bevel gear 52 meshes with the micro gear 32, and the driving shaft 51 drives the bevel gear 52 to rotate. The rotation of the micro-gear 32 drives the rotation of the roller 31 and the contraction or stretching of the net 1; when the bevel...

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Abstract

The invention discloses a vertebra fusion mesh cage which comprises a plurality of meshes forming the mesh cage. And the plurality of supporting pieces are used for connecting the plurality of nets and realizing the collection of the plurality of nets. According to the invention, filled bone grafts or bone fragments can be supported to keep a stable state and can be gathered and finely adjusted, and effective fusion of the bone grafts with upper and lower vertebral bodies can be ensured while self fusion of the bone grafts after an operation is promoted.

Description

technical field [0001] The invention relates to the field of orthopedic implantable devices, in particular to a cage for vertebral fusion and a matching driving assembly. Background technique [0002] The anterior cervical titanium mesh is used in multi-segment subtotal corpectomy, and the bone is placed in the middle of the titanium mesh. Generally, the bone fragments are placed in the middle and the large bone fragments are placed in two sections to prevent the fragments from being exposed, but the titanium mesh is prone to subsidence and support failure. [0003] In the prior art, artificial vertebral bodies or titanium mesh cages are usually used to stabilize the damaged vertebral body region. During surgery, bone fragments are filled into titanium mesh cages or artificial vertebral bodies. For example, CN204600639U discloses a composite internal fixation device for cervical vertebrae. Use an anterior cervical plate to fix the upper and lower vertebral bodies to support...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2/4465
Inventor苗吉显
OwnerLUOYANG ORTHOPEDIC TRAUMATOLOGICAL HOSPITAL