发明名称 |
Oval dilator and retractor set and method |
摘要 |
Access to a greater area of surgical site with minimally invasive procedure is obtained by using two sets of sequentially placed tissue dilators oriented with their axes in a plane parallel to the spinal axis and a final non-circular dilator encompassing the two sets, followed by a non-circular tubular retractor providing a working channel extending longitudinally of the spine.
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申请公布号 |
US7074226(B2) |
申请公布日期 |
2006.07.11 |
申请号 |
US20020246995 |
申请日期 |
2002.09.19 |
申请人 |
SDGI HOLDINGS, INC. |
发明人 |
ROEHM, III THOMAS E.;NULL WILLIAM B. |
分类号 |
A61B17/58;A61B17/17;A61B17/34 |
主分类号 |
A61B17/58 |
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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