发明公开
EP0453251A1 Ultrasonic imaging of biopsy needle
失效
Ultraschall Bilderzeugung von einer Biopsionadel。
- 专利标题： Ultrasonic imaging of biopsy needle
- 专利标题（中）： Ultraschall Bilderzeugung von einer Biopsionadel。
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申请号： EP91303404.7申请日： 1991-04-17
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公开(公告)号： EP0453251A1公开(公告)日： 1991-10-23
- 发明人: Powers, Jeffry E.
- 申请人： Advanced Technology Laboratories, Inc.
- 申请人地址： 22100 Bothell Highway, S.E. Bothell Washington 98041-3003 US
- 专利权人： Advanced Technology Laboratories, Inc.
- 当前专利权人： Advanced Technology Laboratories, Inc.
- 当前专利权人地址： 22100 Bothell Highway, S.E. Bothell Washington 98041-3003 US
- 代理机构： Mercer, Christopher Paul
- 优先权： US511382 19900418
- 主分类号： A61B8/08
- IPC分类号： A61B8/08 ; A61B17/34
摘要：
A system for imaging a biopsy needle with ultrasound is shown in which the needle tip elicits a Doppler response through controlled reciprocation of the needle tip. In a preferred embodiment the biopsy needle includes a hollow cannula (40) which carries a removable stylet. Means for reciprocating (44) the stylet is coupled to the proximal end of the stylet, and the distal tip of the stylet is reciprocated at the distal end of the cannula. This motion is detected through Doppler interrogation of the body region at which the biopsy is to be performed, and the Doppler response of the needle tip in the image of the body region allows the needle tip to be monitored as it approaches the tissue to be biopsied.
公开/授权文献
- EP0453251B1 Ultrasonic imaging of biopsy needle 公开/授权日：1997-08-20
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