公开(公告)号：EP0637940A1

公开(公告)日：1995-02-15

申请号：EP93910921.0

申请日：1993-04-30

申请人： HEMOSTATIC SURGERY CORPORATION ,  EGGERS, Philip, E.

发明人： EGGERS, Philip, E. ,  SHAW, Robert, F.

IPC分类号： A61B17 ,  A61B18

CPC分类号： A61B17/3211 ,  A61B18/082 ,  A61B2018/00107 ,  A61B2018/1412 ,  Y10T83/293

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.

摘要翻译： 提供了一种止血手术刀片（10）以及制造这种刀片的方法，其中该刀片包括具有可硬化中心层（22）和高导热外层的层压区域（40），所述层压区域与低热量的第二区域 导电材料（21）。 加热元件（16）被固定到层压区域并与其热连通以在组织的胶原被切开时热再形成胶原。 由加热元件（16）产生的热量被传导至刀片的切割边缘（13），以将切割边缘温度维持在用户选择的操作温度的20℃至70℃内。 第二区域（21）减少了热量传导至器械的手柄。 加热元件（16）包括附着到层压区域（17）的外表面的导热介电层，沉积在介电层（18）上的电阻导电元件，覆盖电阻导体元件的第二介电层（19），以及 设置在其上的粘附涂层（12）以减少凝聚物在叶片上的累积。