发明名称 |
Internal osteotomy fixation device |
摘要 |
An internal osteotomy fixation apparatus is provided. The device comprises a distal plate including a channel. A slide is slidably received within the channel such that the slide is translatable with respect to the distal plate along a first axis. A proximal plate is hingedly connected to the slide, such that the proximal plate has two degrees of freedom relative to the distal plate. A ledge protruding from a first portion of the proximal plate is configured to support a proximal bone segment when the device is implanted. The slide includes ratchet teeth. A ratchet arm including teeth is attached to the distal plate, and configured to engage the slide ratchet teeth. A cross-section of the ratchet arm is configured to maintain a constant stress level along a flexed portion of the arm. The distal plate includes a shelf upon which the ratchet arm rests. Compressive loads borne by the device are translated through the shelf to the distal plate. A minimum length of the device is related to the longer of the ratchet arm or the segment of teeth on the slide. The distal plate includes a hole through which a release mechanism is accessible.
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申请公布号 |
US2003114856(A1) |
申请公布日期 |
2003.06.19 |
申请号 |
US20010021980 |
申请日期 |
2001.12.14 |
申请人 |
NATHANSON JEREMY J.;CERIANI DYLANN D.;GILDERSLEEVE RICHARD;PFLASTER DANIEL S.;CHURCHILL DAVID L.;INCAVO STEPHEN J.;BEYNNON BRUCE D. |
发明人 |
NATHANSON JEREMY J.;CERIANI DYLANN D.;GILDERSLEEVE RICHARD;PFLASTER DANIEL S.;CHURCHILL DAVID L.;INCAVO STEPHEN J.;BEYNNON BRUCE D. |
分类号 |
A61B17/28;A61B17/80;A61B17/88;A61B17/92;(IPC1-7):A61B17/58 |
主分类号 |
A61B17/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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