发明授权
- 专利标题: FLUID-ASSISTED ELECTROSURGICAL INSTRUMENT WITH SHAPEABLE ELECTRODE
- 专利标题(中): 液体辅助手术器械电动延展性电极
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申请号: EP03734953.7申请日: 2003-01-14
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公开(公告)号: EP1476093B1公开(公告)日: 2011-05-04
- 发明人: OCEL, Jon, M. , BRISCOE, Roderick, E. , FRANCISCHELLI, David, E. , JAHNS, Scott, E. , KEOGH, James, R.
- 申请人: Medtronic, Inc.
- 申请人地址: 710 Medtronic Parkway Minneapolis, MN 55432-5604 US
- 专利权人: Medtronic, Inc.
- 当前专利权人: Medtronic, Inc.
- 当前专利权人地址: 710 Medtronic Parkway Minneapolis, MN 55432-5604 US
- 代理机构: Hughes, Andrea Michelle
- 优先权: US56807 20020125
- 国际公布: WO2003063718 20030807
- 主分类号: A61B18/18
- IPC分类号: A61B18/18
摘要:
An electrosurgical instrument (12, fig. 1) including an elongated shaft (22) and a non-conductive handle (20) is disclosed. The shaft defines a proximal section (40), a distal section (42), and an internal lumen (50) extending from the proximal section. The distal section forms an electrically conductive tip (44) and defines at least one passage (52) for distributing fluid. Further, the shaft is adapted to be transitionable from a straight state to a first bent state (fig. 5). The shaft is capable of independently maintaining the distinct shapes associated with the straight state and the first bent state. The handle is rigidly coupled to the proximal section of the shaft. With this in mind, an exterior surface of the shaft distal the handle and proximal the distal section is electrically nonconductive. In one preferred embodiment, the shaft is comprised of an elongated electrode body surrounded by an electrical insulator.
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