发明名称 |
Atherectomy device having helical blade and blade guide |
摘要 |
An atherectomy catheter includes a catheter body having a cylindrical housing at its distal end. The cylindrical housing includes an elongate cutting aperture on one side thereof and a mechanism for severing atheroma which enters within the opening. In a first embodiment, the cutting mechanism comprises a circular cutting blade which is advanced over an elongate guide member which defines a path for the blade. Use of the guide means helps assure that the cutting blade will not be lost from the housing during use. In a second embodiment, a rotatable helical cutting blade is mounted within the housing. In that particular embodiment, the helical cutting blade can serve as the guide member for the circular cutting blade.
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申请公布号 |
US5569277(A) |
申请公布日期 |
1996.10.29 |
申请号 |
US19940359239 |
申请日期 |
1994.12.19 |
申请人 |
DEVICES FOR VASCULAR INTERVENTION, INC. |
发明人 |
EVANS, MICHAEL;MUELLER, RICHARD L. |
分类号 |
A61B17/22;A61B17/32;(IPC1-7):A61B17/32 |
主分类号 |
A61B17/22 |
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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