发明授权
- 专利标题: Enhanced cutting drill tip for endosseous implants
- 专利标题(中): 用于内骨植入物的增强切割钻头
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申请号: US269598申请日: 1994-07-01
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公开(公告)号: US5569035A公开(公告)日: 1996-10-29
- 发明人: Alan R. Balfour , Francois Aeby
- 申请人: Alan R. Balfour , Francois Aeby
- 申请人地址: DE Milford
- 专利权人: Dentsply Research and Development Corp.
- 当前专利权人: Dentsply Research and Development Corp.
- 当前专利权人地址: DE Milford
- 主分类号: A61C3/02
- IPC分类号: A61C3/02 ; A61C8/00
摘要:
A tri-spade dental drill with an enhanced cutting tip for preparing surgical sites for endosseous implants is described. The cutting tip incorporates a split point cutting surface for each of the three blades wherein the split point includes a positive rake angle. All three split points converge at the center of the drill, eliminating any chisel edges. The positive rake angle split point and its offset secondary cutting flutes breaks the removed bone into smaller chips, decreasing the principle cutting force necessary for drilling and facilitating material ejection.
公开/授权文献
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