Three-dimensional elastic dynamic artificial vertebra

An elastic and dynamic technology, applied in the direction of spinal implants, etc., can solve the problems of fatigue fracture and elastic failure of elastic vertebral body, and achieve the effect of preventing elastic failure and fatigue fracture.

Active Publication Date: 2017-06-13
DABO MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the following technical defects are found in the actual application of the existing artificial vertebral body

Method used

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  • Three-dimensional elastic dynamic artificial vertebra
  • Three-dimensional elastic dynamic artificial vertebra
  • Three-dimensional elastic dynamic artificial vertebra

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Please refer to Figure 1 to Figure 4 , a three-dimensional elastic dynamic artificial vertebral body of the present invention includes an elastic main body 10 and two connecting seats 20 respectively connected to the upper and lower ends of the elastic main body. The elastic main body 10 is provided with a buffer groove 11 to have elastic deformation capability, and the middle part of the elastic main body 10 penetrates up and down to form a vertical channel 12 . It also includes an elastic anti-bending mandrel 30 and an elastic anti-bending sleeve 40 arranged in the vertical channel 12 . The ends of the elastic anti-bending mandrel 30 and the elastic anti-bending bushing 40 are respectively connected to the two connecting seats 20 so as to limit the connecting seats 20 on the elastic body 10 . The ends close to each other of the elastic anti-bending mandrel 30 and the elastic anti-bending sleeve 40 are sleeved together. Both the elastic anti-bending mandrel 30 and t...

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Abstract

The invention discloses a three-dimensional elastic dynamic artificial vertebra. The three-dimensional elastic dynamic artificial vertebra comprises an elastic body, and two connecting bases connected to the upper end and the lower end of the elastic body respectively. Buffer slots are formed in the elastic body, so that the elastic body achieves the elastic deformation capacity, and a vertical channel is formed in the middle of the elastic body in a vertically through mode. The three-dimensional elastic dynamic artificial vertebra further comprises an elastic anti-bending mandrel and an elastic anti-bending shaft sleeve which are arranged in the vertical channel, the ends, away from each other, of the elastic anti-bending mandrel and the elastic anti-bending shaft sleeve are connected with the two connecting bases respectively to limit the connecting bases on the elastic body, the ends, close to each other, of the elastic anti-bending mandrel and the elastic anti-bending shaft sleeve are sleeved together, and the elastic deformation limits of the elastic anti-bending mandrel and the elastic anti-bending shaft sleeve are smaller than that of the elastic body. When the elastic anti-bending mandrel and the elastic anti-bending shaft sleeve deform and reach the elastic deformation limits, the elastic body cannot further deform, and therefore elastic failure and fatigue fracture of the elastic body are effectively avoided.

Description

technical field [0001] The invention relates to a three-dimensional elastic dynamic artificial vertebral body. Background technique [0002] Artificial vertebral bodies can be used to help patients recover after cervical and lumbar surgery, and are being used more and more clinically. [0003] In the early days, people used titanium cages and plate screw mechanisms to treat cervical and lumbar diseases. The titanium cage was placed at the position of the excised target vertebra to support it, and the plate and screw mechanism was used to place the adjacent upper and lower sides of the excised target vertebra. The two vertebral bodies are locked and connected, because this structure is not firmly fixed, and the titanium cage is prone to tilting and falling off, so it has been gradually eliminated. [0004] The present artificial vertebral body usually includes a vertebral body part and connecting seat parts respectively connected to the upper and lower ends of the vertebral ...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/442A61F2/4465A61F2002/443A61F2002/4445
Inventor 陈晋伟张喜贵
Owner DABO MEDICAL TECH CO LTD
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