Fixing fusion device for vertebral bodies of lumbar

A technology for intervertebral bodies and fusion devices, which is applied in the direction of fixators, internal fixators, prostheses, etc., can solve problems such as unsatisfactory, and achieve the effects of convenient material collection, high compressive strength, and high image compatibility

Inactive Publication Date: 2006-07-05
杨守恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, regardless of the former or the latter, almost all of these internal fixators are foreign bodies with a metal frame structure, and OIC-PEEK, a high molecular polymer, degrades quickly, and the frame must be filled with bone grafts, so it is considered not ideal.

Method used

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  • Fixing fusion device for vertebral bodies of lumbar
  • Fixing fusion device for vertebral bodies of lumbar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: In this example, bovine bone bone tissue is used as the material, and it is planed and milled into a cone-shaped body 4 with a height of 25mm, a lower bottom surface of 14mm, an upper bottom surface of 10mm, and a thickness of 10mm. The groove diameter is Φ6mm. The cross section of the groove is I-shaped. The vertebral surfaces on both sides are respectively milled and processed into a vertebral surface with convex teeth 1. The convex teeth 1 are arranged evenly, and then two through holes 3 are opened on the plane of the body 4, the diameter of which is Φ5mm.

Embodiment 2

[0017] Example 2: In this example, pig bone bone tissue is used as the material, and it is planed and milled into a cone-shaped body 4 with a height of 20 mm, a lower bottom surface of 9 mm, an upper bottom surface of 7 mm, and a thickness of 7 mm. The groove diameter is Φ4 mm. The cross section of the groove is I-shaped. The vertebral surfaces on both sides are respectively milled and processed into vertebral surfaces with convex teeth 1. The convex teeth 1 are arranged uniformly, and then two through holes 3 are opened on the plane of the body 4, the diameter of which is Φ3mm.

[0018] The resulting lumbar intervertebral fixed fusion device of the present invention has been trial-produced and tested and proved to have good overall effects, reliable quality, safety and practicality, and remarkable curative effect.

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Abstract

A fixing-fusing device between lumbar vertebral bodies features that its truncated conic main body is made up of the fresh bone of health mammal and has the teeth on two side edges, at least two through holes, and a slot on its upper surface. Its advantages are high compatibility and effect and no by-effect.

Description

Technical field [0001] The invention belongs to the technical field of medical osteosynthesis appliances. Background technique [0002] In orthopedic medical practice, when encountering spinal instability after the removal of lumbar intervertebral disc herniation, or degenerative lumbar intervertebral disc disease, spinal instability, or I°~II° spondylolisthesis, etc., metal materials are often placed between the vertebral bodies. The internal fixation stent-Cage for treatment. For example, the popular TFC and BAK a few years ago, due to the small bearing surface, will cause complications such as sinking and slippage after filling the bone, and the installation is inconvenient. The recently popular Contact Fusion Cage (such as TELAMON, OIC-Titanium, OIC- Peek) instead. However, regardless of the former or the latter, all these internal fixators are almost foreign bodies of the metal frame structure, and the OIC-PEEK of high molecular polymer degrades quickly, and the frame needs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61F2002/30828A61F2/28A61F2/4455A61F2002/30841A61F2002/30785A61F2310/00359
Inventor 祝天经
Owner 杨守恒
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