发明授权
- 专利标题: Methods and devices for radiofrequency electrosurgery
- 专利标题(中): 射频电外科手术方法及装置
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申请号: US10349659申请日: 2003-01-23
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公开(公告)号: US07198626B2公开(公告)日: 2007-04-03
- 发明人: Roberta Lee , Ary S. Chernomorsky , Mark J. Clifford
- 申请人: Roberta Lee , Ary S. Chernomorsky , Mark J. Clifford
- 申请人地址: US CA Redwood City
- 专利权人: Rubicor Medical, Inc.
- 当前专利权人: Rubicor Medical, Inc.
- 当前专利权人地址: US CA Redwood City
- 代理机构: Young Law Firm, P.C.
- 主分类号: A61B18/18
- IPC分类号: A61B18/18 ; A61B17/24
摘要:
An electrically activated surgical device includes a probe body, an active element and a structure for selectively electrically insulating and/or physically isolating the active element from the patient's tissue when the device is in use. The probe body defines an outer surface, a proximal end, a distal end and a window defined within the outer surface near or at the distal end. The active element is electrically connected to a power source and is configured to selectively assume a non-deployed configuration and a variable deployed configuration in which the active element at least partially emerges from the window out of the probe body. The insulating structure selectively insulates the active element from the patient's tissue when the device is inserted therein. In operation, a physician inserts the probe into the tissue, insulates the active element from the tissue (either before, during or after insertion of the probe), energizes the insulated active element using for example, radiofrequency (RF) power from the power source, and only then exposes the energized active element to the tissue. By insulating the active element during the energizing thereof, little or no current applied to the active element is dissipated in the patient's tissue, thus decreasing the time required to energize the active element and enabling lower and safer power levels to be applied to the active element during the energizing thereof.
公开/授权文献
- US20030109870A1 Methods and devices for radiofrequency electrosurgery 公开/授权日:2003-06-12