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发明公开
CN101969874A 手术器械 失效 - 权利终止

手术器械
摘要：
一种用于电外科器械的末端执行器组件(12)，其包括一对对向的第一钳夹构件和第二钳夹构件(13，14)。钳夹构件(13、14)中的至少一个能相对于另一个在第一打开位置和第二闭合位置之间移动，所述第一打开位置是指所述钳夹构件以相互隔开关系设置的位置，所述第二闭合位置是指所述钳夹构件合作以将组织抓紧在它们之间的位置。所述第一钳夹构件(13)包括沿该钳夹的长度延伸的第一密封件和第二密封件(80，81)，该第一密封件和该第二密封件由它们之间的绝缘构件(17)分开，并且该第一钳夹构件设有支承在该绝缘构件上的导电的切割电极(16)。所述第二钳夹构件(14)包括沿该钳夹延伸的第三密封件和第四密封件(83，84)，该第三密封件和第四密封件由它们之间的凹部(23)分开，在该凹部中与所述切割电极相对地定位有电绝缘的砧(27)。电绝缘的所述砧(27)定位于支承构件(24)，所述支承构件附接至所述第三密封件和所述第四密封件(83，84)中的一个或二者，所述砧和所述支承构件使得该砧相对于所述第三密封件和所述第四密封件以弹簧方式安装，并使得当组织被抓紧在所述末端执行器组件的所述钳夹构件(13、14)之间时，所述砧能在所述凹部(23)内移动至少0.5mm。
摘要（英）：

An end effector assembly (12) for an electrosurgical instrument comprises a pair of opposing first and second jaw members (13, 14). At least one of the jaw members (13, 14) is movable relative to the other between a first open position in which the jaw members are disposed in a spaced relation relative to one another, and a second closed position in which the jaw members cooperate to grasp tissue therebetween. The first jaw member (13) comprises first and second sealing members (80, 81) extending along a length of the jaw and being separated by an insulating member (17) therebetween, and is provided with an electrically-conductive cutting electrode (16) supported on the insulting member. The second jaw member (14) comprises third and fourth sealing members (83, 84) extending along the jaw and being separated by a recess (23) therebetween, an electrically-insulating anvil (27) being located in the recess opposite the cutting electrode (16). The electrically-insulating anvil (27) is located on a support member (24) attached to one or both of the third and fourth sealing members (83, 84), and the anvil and support member are such that the anvil is spring mounted with respect to the third and fourth sealing members and such that the anvil can move within the recess (23) by at least 0.5 mm when tissue is grasped between the jaws (13, 14) of the end effector assembly.

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