- 专利标题: Oriented polymer implantable device and process for making same
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申请号: US10780159申请日: 2004-02-17
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公开(公告)号: US07378144B2公开(公告)日: 2008-05-27
- 发明人: Joseph DeMeo , Patrick E. Hearn , Robert L. McDade
- 申请人: Joseph DeMeo , Patrick E. Hearn , Robert L. McDade
- 申请人地址: US PA Exton
- 专利权人: Kensey Nash Corporation
- 当前专利权人: Kensey Nash Corporation
- 当前专利权人地址: US PA Exton
- 代理机构: Law Office of Jeffrey R. Ramberg
- 主分类号: B32B7/02
- IPC分类号: B32B7/02 ; A61B17/58 ; A61B17/68 ; A61B17/84 ; A61B17/86
摘要:
A device is formed by the process into a bone screw or fastener, wherein the head has a degree of polymer alignment and strength, and wherein the shank has a higher degree of polymer alignment and strength. In practice of the present invention, the polymer slug is pressed into the die cavity by the actuation of ram press, causing the slug to conform to the die cavity. Through this process, the polymer molecular orientation is aligned to different degrees, in different zones of the device.
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