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Cap type cervical vertebra pyramid fusion apparatus

An intervertebral cage and cage technology, applied in the field of cervical intervertebral cages, can solve the problem that there is no report on the cap-type cervical intervertebral cage, the high incidence of complications in the bone donor area, and the collapse of the bone graft to kyphosis. Deformity and other problems, to achieve the effect of saving foreign exchange expenses, conducive to popularization and application, and low price

Inactive Publication Date: 2007-11-21
贾连顺 +2
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  • Summary
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AI Technical Summary

Problems solved by technology

Three-sided cortical iliac crest fusion is still the gold standard, but the incidence of complications in the donor area is high, and problems such as pseudarthrosis, bone graft collapse to kyphosis, and prolapse of graft bone may also occur.
[0006] So far, there has been no report on cap-type cervical interbody fusion

Method used

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  • Cap type cervical vertebra pyramid fusion apparatus
  • Cap type cervical vertebra pyramid fusion apparatus

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Embodiment 1

[0026]Embodiment 1, cap type cervical intervertebral fusion device

[0027] HCIFC is a wedge-shaped hollow square box-shaped vertical elliptical cylinder made of PEEK. There is a titanium marking pin 3 on the front and rear diagonals, and three holes 9 and 10 are opened on the front wall 5 of the cylinder. Each side wall 8 has a groove 6, and the surrounding walls 5, 7, 8 of the hollow columnar body are 2.0 mm thick, and the hollow part 2 of the columnar body is used for implanting bone graft. Its upper surface 1 and lower surface 4 are elliptical, with an anti-slip structure like inverted sawtooth protrusions, and the edges protrude 1.0mm from the columnar body, and the front edge of the upper surface 1 is 1.0mm higher than the rear edge.

[0028] A set for use with the Cap Cervical Interbody Fusion, including nine sizes of trial molds, a handle and a bone filler. HCIFC's trial mold is divided into three specifications according to width and depth: 16mm / 14mm, 14mm / 12mm, and ...

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Abstract

A cap-type fusion device used between two cervical pyramids is a hollow truncated conic body, which has a holes, inclined top surface and flat bottom surface, which are matched with the top and bottom end-plate of cervical pyramid, and the projected edges. Its advantages are high effect and biologic compatibility, low cost and high safety.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an intervertebral fusion device (Cage), more specifically to a cervical intervertebral fusion device mainly used in surgery. Background technique [0002] Anterior decompression and intervertebral fusion are well-established methods for treating cervical spine disorders. Trilateral cortical iliac bone graft fusion is still the gold standard, but the incidence of complications in the donor site is high, and problems such as pseudarthrosis, bone graft collapse to kyphosis, and graft bone prolapse may also occur. Therefore, more and more scholars use cervical intervertebral fusion devices to restore intervertebral height, obtain immediate stability, and finally obtain the effect of intervertebral bone fusion. [0003] Weiner and Fraser' divided the currently used cervical intervertebral fusion cages into three main types: horizontal cylindrical fusion cages with threads (such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/44A61B17/70
CPCA61F2/44A61F2002/30001
Inventor 贾连顺顾宇彤陈雄生
Owner 贾连顺
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