Vertically implanted artificial vertebral body

A kind of vertebral body and artificial technology, applied in the field of artificial vertebral body, can solve the problems of easy breakage of screws, thread prolapse, prolapse, etc.

Active Publication Date: 2020-10-30
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is found in clinical and biomechanical tests that after a period of use, the cooperation between the above-mentioned external thread and the threaded hole is not stable enough, and the thread is

Method used

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  • Vertically implanted artificial vertebral body
  • Vertically implanted artificial vertebral body
  • Vertically implanted artificial vertebral body

Examples

Experimental program
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Embodiment 1

[0027] Embodiment 1 of the present invention provides a vertically implanted artificial vertebral body. As shown in the figure, the artificial vertebral body includes a vertebral body 1, a bone graft screw 2, a driving part 3 and a transition part 4. An accommodating cavity 101 is provided, the transition part 4 and the bone graft screw 2 are both arranged in the accommodating cavity 101 in the vertebral body 1, and the driving end 32 of the driving part 3 passes through the side of the vertebral body 1 The wall drives the bone graft screw 2 to rotate downward through the transition part 4 .

[0028] In order to facilitate the disassembly and assembly of medical devices, the vertebral body 1 can be divided into multiple disassembly modules, such as figure 1 and image 3 As shown, the vertebral body 1 includes a vertebral body upper part 11 and a vertebral body lower part 12, the upper end surface of the vertebral body upper part 11 is provided with a plurality of conical prot...

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PUM

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Abstract

The invention provides a vertically implanted artificial vertebral body which comprises a vertebral body, a bone grafting screw and a driving part, an accommodating cavity is formed in the cone; a plurality of conical protrusions are arranged on the end face of one end of the cone, and a penetrating-out hole communicated with the containing cavity is formed in the end face of the other end of thecone. The bone grafting screw is arranged in the accommodating cavity, the tip end of the bone grafting screw faces the penetrating-out hole, the driving component is provided with a control end and adriving end, and the driving end of the driving component penetrates through the side wall of the vertebral body and is connected with the bone grafting screw so as to be used for driving the bone grafting screw to rotate. According to the artificial vertebral body, the mode that the bone grafting screw is perpendicularly driven in along the central axis of the spine of the human body is adopted,other structures protruding out of the spine body are not added, foreign body sensation of prosthesis implantation is avoided, and meanwhile the problem that the bone grafting screw is prone to beingbroken and disengaged when the bone grafting screw is driven in the transverse direction or the oblique direction is avoided.

Description

technical field [0001] The invention relates to the technical field of medical prosthesis, in particular to a vertically implanted artificial vertebral body. Background technique [0002] In the treatment of human spine diseases, vertebral body destruction is often caused by spinal tumors, tuberculosis and severe fractures, which may lead to spinal cord nerve damage and have to perform vertebral body resection. The spine after vertebral body resection needs to rebuild its stability, and the emergence of artificial vertebral body replacement provides an ideal method for the treatment of such diseases. Since the first report of vertebral body tumor resection and prosthetic replacement in the late 1960s, artificial vertebral bodies have been widely used clinically as a kind of effective vertebral body substitutes. [0003] However, in clinical application and a series of biomechanical tests, it has been shown that the traditional artificial vertebra has some problems to be sol...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/446A61F2/30749
Inventor 李喜旺史春宝原帅许奎雪康树靖王建超王振国
Owner BEIJING CHUNLIZHENGDA MEDICAL INSTR
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