发明公开
- 专利标题: ELECTRICALLY HEATED SURGICAL BLADE AND METHODS OF MAKING.
- 专利标题(中): 电热,手术刀片和方法。
-
申请号: EP93910921申请日: 1993-04-30
-
公开(公告)号: EP0637940A4公开(公告)日: 1995-07-12
- 发明人: EGGERS PHILIP E , SHAW ROBERT F
- 申请人: HEMOSTATIC SURGERY CORP , EGGERS PHILIP E
- 专利权人: HEMOSTATIC SURGERY CORP,EGGERS PHILIP E
- 当前专利权人: HEMOSTATIC SURGERY CORP,EGGERS PHILIP E
- 优先权: US87769892 1992-05-01
- 主分类号: A61B17/3211
- IPC分类号: A61B17/3211 ; A61B17/32 ; A61B18/04 ; A61B18/08 ; A61B18/14
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.
信息查询