发明名称 |
Method of making a bonescrew |
摘要 |
A screw for use in spinal and other surgical procedures has a tapered core and fixed pitch threads. The threads have a compound curved inferior surface and constant width crest. The screw may be provided with a helical thread in which at least the lead thread adjacent to the screw tip is ledged and the following threads have sharp apices. A method of making the screw requires two tool bits making two different angular cuts to the inferior surface of the threads.
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申请公布号 |
US2001047175(A1) |
申请公布日期 |
2001.11.29 |
申请号 |
US20010915775 |
申请日期 |
2001.07.26 |
申请人 |
DOUBLER ROBERT L.;HAMMILL JOHN E.;LASNER JEFFREY |
发明人 |
DOUBLER ROBERT L.;HAMMILL JOHN E.;LASNER JEFFREY |
分类号 |
A61B17/86;(IPC1-7):A61B17/58 |
主分类号 |
A61B17/86 |
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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