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Frame-type artificial vertebral body

A frame-type, vertebral body technology, applied in the direction of internal fixator, internal bone synthesis, fixer, etc., can solve the problems of poor bone structure formation, reduce economic burden, increase fixation strength, and reduce production and sales costs Effect

Inactive Publication Date: 2006-10-18
王永清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problems to be solved are: in order to overcome the poor biological performance and bone structure formation in the past, increase the fixation strength of the spine, simplify the operation, reduce surgical injuries and other complications, reduce the economic burden of patients, and reduce production and sales costs.

Method used

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  • Frame-type artificial vertebral body
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Embodiment Construction

[0014] exist figure 1 Among them, the thick central shaft (11) and the thin central shaft (12) can be screwed in the sheath type sleeve (8), and the other ends of the thick central shaft (11) and the thin central shaft (12) are connected with the winged "shoe-shaped ” The pallet (1) is connected to the bushing (2) by locking pins. The horizontal fixing screw (14) is fixed on the vertebral body through the balance fixing screw hole (3). The longitudinal fixing screws (13) are fixed on the vertebral body through the middle hole (6) of the shaft sleeve.

[0015] exist figure 2 In the shown embodiment, during the operation, the winged "shoe-shaped" support plate (1) is first placed on the vertically fixed vertebral body, and the special spinal distraction orthosis is used to stretch the vertebral body, correct the spinal deformity, and make the The tapered pickets (5) with winged "shoe-shaped" supporting plates (1) at both ends penetrate into the upper and lower vertebral bodi...

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Abstract

The openable frame-type artificial vertebral body is used for correcting deformed spine, fixing and maintaining spine and reconstructing bone structure of spine in treating spine tumor, fracture, tuberculosis, malformation, etc. The frame-type artificial vertebral body has frame-type structure comprising a porous horseshoe shaped support plate and an adjustable upright, and has hydroxyapatite sprayed to the surface to raise biological performance and promote the formation of bone structure, one vertical bone screw and two transverse screws to form spine fixing stereo structure, and one central axle to create one mechanical environment favorable to bone survival and formation. The present invention has raised biological performance, simplified operation, reduced operation wound and less complication.

Description

Technical field [0001] The utility model relates to an orthopedic internal fixation device in the medical field, in particular to a frame-type artificial vertebral body that can replace vertebral bodies, correct spinal deformities, fix and maintain spine stability, and reconstruct the skeletal structure of vertebral bodies. Background technique [0002] At present, it is known that surgical treatment of diseases such as spinal tumors, fractures, tuberculosis and deformities requires internal fixation, including the fixation of artificial vertebral bodies. The operation method is to resect the diseased vertebral body, install a titanium alloy artificial vertebral body substitute, and add a side or rear auxiliary internal fixator to achieve the purpose of treatment. However, these fixations lack the biological performance of promoting bone formation, the fixation strength is poor, the operation is complicated, the patient's body is damaged, and the economic burden is heavy. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
Inventor 王永清
Owner 王永清
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