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Interspinal spacer

A technology between spinous processes and spinous processes, which is applied in the fields of medical science, prosthesis, surgery, etc., can solve the problems that the direct force of the main body of the vertebral body is not enough, and no one has proposed the treatment of the upper and lower vertebral bodies.

Inactive Publication Date: 2009-12-30
邹德威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, for alleviating the friction and extrusion between the spinous processes of the upper and lower vertebral bodies, applying force directly to the main body of the vertebral body is not as good as directly applying force to the spinous processes of the upper and lower vertebral bodies
[0007] However, no one has proposed a treatment method and a corresponding treatment appliance for applying force to the spinous processes of the upper and lower vertebral bodies.

Method used

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  • Interspinal spacer
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Experimental program
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Effect test

no. 1 approach

[0028] see Figure 5-6 , showing the present invention. The interspinous process spacer 1 of the present invention has a spacer body 10, and an upper spinous process recess 11 for accommodating and positioning the spinous process H of the upper vertebral body A is provided on the upper side of the spacer body 10. A lower spinous process recess 12 for accommodating and positioning the spinous process H of the lower vertebral body B is provided on the lower side of the vertebral body.

[0029] Specifically, in this embodiment, the spacer body 11 of the interspinous process spacer 1 is composed of a balloon, and an injection port 13 is provided on the balloon. The balloon has the above-mentioned upper spinous process recess 11 and lower spinous process recess 12 in an inflated state. As a specific example, the balloon is filled with biological material, such as bone cement.

[0030] According to the interspinous process spacer 1 of the present embodiment, when the operation is...

no. 2 approach

[0032] The second embodiment of the present invention consists of Figure 7-9 Shows. The interspinous process spacer 1 of this embodiment has a spacer body 20, and an upper spinous process recess 21 for accommodating and positioning the spinous process H of the upper vertebral body A is provided on the upper side of the spacer body 20. The lower side of 20 is provided with a lower spinous process recess 22 for accommodating and positioning the spinous process H of the lower vertebral body B.

[0033] In an embodiment, the spacer body 20 of the interspinous process spacer 1 is made of a shape memory polymer material with shape memory properties, and the shape memory recovery temperature of the shape memory polymer material is within the human body temperature range , the spacer body has the above-mentioned upper spinous process recess 21 and lower spinous process recess 22 in the state of recovering shape memory.

[0034] As a specific implementation example, the shape memory...

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PUM

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Abstract

The invention provides an interspinal spacer. The interspinal spacer can be arranged and positioned between spinous processes of an upper vertebral body and a lower vertebral body to support the spinous processes of the upper vertebral body and the lower vertebral body so as to prevent the mutual friction and extrusion between the spinous processes. The interspinal spacer is provided with a spacer body arranged and positioned between the spinous processes of the upper vertebral body and the lower vertebral body; and the upper side surface of the spacer body is provided with an upper spinous process dent used for accommodating and positioning the spinous processes of the upper vertebral body, and the lower side surface of the spacer body is provided with a lower spinous process dent used for accommodating and positioning the spinous processes of the lower vertebral body.

Description

technical field [0001] The invention relates to an orthopedic medical product, in particular to a spacer between spinous processes for treating spinal diseases. Background technique [0002] The spine is an important joint that supports the body of the human body. The spine of the human body is composed of multiple vertebral bodies connected up and down. There are intervertebral discs between the adjacent upper and lower vertebral bodies to support the upper and lower vertebral bodies. see Figure 1-4 Shown, represents the structure of the human spine in normal physiological conditions. The intervertebral disc C is squeezed between the end plates of the upper vertebral body A and the lower vertebral body B, and the upper and lower vertebral bodies are movably supported by the intervertebral disc C, so that the upper and lower vertebral bodies can move relative to each other. There is also a lamina D on the side of the vertebral body close to the back of the human body, the ...

Claims

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Application Information

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IPC IPC(8): A61F2/44A61B17/56A61L31/14A61L31/04A61L27/50A61L27/14
Inventor 邹德威
Owner 邹德威