Zygoma internal arced distractor

An arc-shaped, zygomatic technology, which is applied in the field of zygomatic built-in arc-shaped distractor and maxillofacial distraction osteogenesis surgical devices, can solve the problem of inability to achieve arc-shaped traction, and achieve light weight and small volume. , Simple design effect

Inactive Publication Date: 2007-09-26
牛学刚
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, most of the bone distractors reported at home and abroad are linear devices, which cannot achieve arc traction.
There are only a few bone distractors that can achieve arc-shaped traction, but they are all designed and manufactured for the mandible, and none of them can achieve the internal arc-shaped distraction of the zygomatic bone.

Method used

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  • Zygoma internal arced distractor
  • Zygoma internal arced distractor
  • Zygoma internal arced distractor

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specific Embodiment approach

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT When a patient has a maxillary defect, part of the maxilla can be repaired through zygomatic built-in arc distraction osteogenesis. During the operation, an osteotomy was performed in the lateral zygomatic area of ​​the defect area, and a distraction bone block with a width of 10-15mm was made, and holes were punched in the distraction bone block and the lateral zygomatic area, and then the built-in curved bone distractor was fixed. The wound was sutured and closed at the stretched bone block and the corresponding parts of the zygomatic region. Except for the rear force end of the bone distractor exposed to the temporal skin, the rest was completely implanted in the body. After one week, start the traction with force: rotate the rear end of the stretcher with the supporting force rod, that is, the force end of the flexible central screw, so as to rotate the central screw. The thread on the central screw matches the inner t...

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Abstract

A malar bone internal arch bone drawer is characterized in that it is formed by an arch track, a block, a flexible central screw, a fixing plate and a positioning sheath. The flexible central screw is made from ultra-flexible titanium nickel alloy, arranged at the center of the arch track, through the center of the block and fixed by the positioning sheath at two ends, to force via a special forcing rod in drawing process. The flexible central screw can rotate along with the arc shape of the arch track, to move the block in arc movement along the arch track. When upper jaw hurts most, patient face is significant concave, without bone support, which is hard to rebuild chewing ability. And the invention can tension internal arc into bones to repair part of upper jaw to rebuild bone support at hurt part, to realize ability rebuilding. The invention can better compatibility, small volume, simple design, and easy operation.

Description

technical field [0001] The invention relates to a zygomatic built-in curved bone distractor, which is a surgical device applied to maxillofacial distraction osteogenesis, and belongs to the field of oral and maxillofacial surgical instruments. Background technique [0002] Distraction osteogenesis technology can use the tension-stress effect of biological tissue without bone grafting, and use the form of bone distractor to completely or partially disconnect bone segments that still have blood supply. , to apply a traction force at a certain rate and direction on the bone segment, so that the bone segment is gradually separated, and new bone is formed in the resulting gap, thereby lengthening, widening the bone or repairing the bone defect. [0003] Large maxillary defects are serious maxillofacial defects. Due to the special morphological structure of the maxilla, it is difficult to reconstruct the defect area with autologous tissue, and it is mostly repaired with maxillary ...

Claims

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Application Information

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IPC IPC(8): A61B17/66A61B17/56
Inventor 牛学刚
Owner 牛学刚
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