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Thoracic and lumbar vertebral posterior prosthesis

A thoracolumbar and posterior technique, applied in the field of medical equipment, can solve problems such as lack of effective bone bed, iatrogenic instability of the thoracolumbar spine, compression, etc., to solve the stress concentration and degeneration acceleration of the intervertebral disc, and avoid iatrogenic Injury, easy operation effect

Inactive Publication Date: 2008-12-24
SHANGHAI JIAO TONG UNIV AFFILIATED SIXTH PEOPLES HOSPITAL +1
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Problems solved by technology

[0002] The operation for the treatment of thoracolumbar spinal stenosis involves resection and decompression of the entire lamina and bone grafting, which may easily lead to loss of effective bone bed, iatrogenic instability of the thoracolumbar spine, lack of protection of the contents of the spinal canal, and bone grafting. Bone grafts can easily enter the spinal canal and form iatrogenic compression on the spinal cord nerves, leading to surgical failure

Method used

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  • Thoracic and lumbar vertebral posterior prosthesis
  • Thoracic and lumbar vertebral posterior prosthesis
  • Thoracic and lumbar vertebral posterior prosthesis

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with accompanying drawing.

[0029] like Figure 1~4 As shown, the posterior thoracolumbar prosthesis includes an artificial spinous process 1 and an artificial lamina 2. The artificial spinous process 1 is connected to the artificial lamina 2, and the connection is in the form of a connection between the spinous process and the lamina of the human body. .

[0030] Also includes the artificial interspinous ligament, the artificial spinous process 1 and the artificial lamina 2 are connected and fixed with the spinous process and the lamina of the adjacent segments of the human body through the artificial interspinous ligament; the artificial spinous process 1 is Hollow cuboid shape, including the upper end opening 3 and the lower end opening 4 for embedding the upper and lower segmental spinous processes, the rear opening 5 for bone grafting, and the ligament fixing structure 6 for fixing the artificia...

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Abstract

The present invention relates to a thoracolumbar vertebrae posterior false body which comprises a manual spinous process and a manual vertebral lamina. The manual spinous process is connected with the manual vertebral lamina, and the connection is shape as the connection of the spinous prcess and the vertebral lamina of human body pyramid. Compared with the prior art, the thoracolumbar vertebrae posterior false body can reconstruct the stability of thoracolumbar vertebrae and recover the physical structure and the physical function of thoracolumbar vertebrae posterior column, and can reconstruct the normal anatomical configuration and the function of vertebral canal, and can effectively avoid the possibility of the iatrogenic injury caused by vertebral canal content during operation; the thoracolumbar vertebrae posterior false body integrates spine fusion and non-fusion fixation functions as a whole, the fusion and non-fusion fixation functions are selected and used freely according to the requirement of the operation, and the operation is simple.

Description

technical field [0001] The invention relates to a medical appliance, in particular to a thoracolumbar posterior prosthesis. Background technique [0002] The operation for the treatment of thoracolumbar spinal stenosis involves resection and decompression of the entire lamina and bone grafting, which may easily lead to loss of effective bone bed, iatrogenic instability of the thoracolumbar spine, lack of protection of the contents of the spinal canal, and bone grafting. Bone grafts can easily enter the spinal canal and form iatrogenic compression on the spinal cord nerves, leading to surgical failure. Contents of the invention [0003] The object of the present invention is to provide a safe and easy-to-operate thoracolumbar posterior prosthesis in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achieved through the following technical solutions: thoracolumbar posterior prosthesis, which is characterized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61L27/00
Inventor 傅一山曾炳芳张长青
Owner SHANGHAI JIAO TONG UNIV AFFILIATED SIXTH PEOPLES HOSPITAL
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