发明公开
- 专利标题： ELECTRICALLY HEATED SURGICAL BLADE AND METHODS OF MAKING
- 专利标题（中）： 电加热手术刀片和制造方法
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申请号： EP93910921.0申请日： 1993-04-30
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公开(公告)号： EP0637940A1公开(公告)日： 1995-02-15
- 发明人: EGGERS, Philip, E. , SHAW, Robert, F.
- 申请人： HEMOSTATIC SURGERY CORPORATION , EGGERS, Philip, E.
- 申请人地址： P.O. Box 258 Georgetown, Grand Cayman KY
- 专利权人： HEMOSTATIC SURGERY CORPORATION,EGGERS, Philip, E.
- 当前专利权人： HEMOSTATIC SURGERY CORPORATION,EGGERS, Philip, E.
- 当前专利权人地址： P.O. Box 258 Georgetown, Grand Cayman KY
- 代理机构： Lyons, Andrew John, et al
- 优先权： US19920877698 19920501
- 国际公布： WO1993021838 19931111
- 主分类号： A61B17
- IPC分类号： A61B17 ; A61B18
摘要：
A hemostatic surgical blade (10) and methods of manufacturing such blades are provided, wherein the blade comprises a laminate region (40) having a hardenable center layer (22) and highly thermally conductive outer layers, joined to a second region of a low thermal conductivity material (21). A heating element (16) is secured to the laminate region and in thermal communication therewith to thermally reform the collagen of tissue as it is incised. The heat generated by the heating element (16) is conducted to the cutting edge (13) of the blade to maintain the cutting edge temperature within 20 °C to 70 °C of a user-selected operating temperature. The second region (21) reduces the conduction of heat to the handle of the instrument. The heating element (16) comprises a thermally conductive dielectric layer attached to an outer surface of the laminate region (17), resistive conductive elements deposited on the dielectric (18), a second dielectric layer (19) covering the resistive conductor elements, and an adherent coating (12) disposed thereon to reduce coagulum buildup on the blade.
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