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1. 发明授权

US6017356A Method for using a trocar for penetration and skin incision 失效
标题翻译：使用套针针穿透和皮肤切口的方法
公开(公告)号：US6017356A
公开(公告)日：2000-01-25
申请号：US933797
申请日：1997-09-19
申请人： Christopher J. Frederick , Richard F. Schwemberger , William D. Kelly , Joseph F. Paraschac , John P. Measamer
发明人： Christopher J. Frederick , Richard F. Schwemberger , William D. Kelly , Joseph F. Paraschac , John P. Measamer
IPC分类号： A61B17/34
CPC分类号： A61B17/3417 , A61B17/3211 , A61B17/3496 , A61B2017/346
摘要： A method for establishing a surgical port for endoscopic or arthroscopic surgery is disclosed. A trocar is initially provided, and the obturator of the trocar includes a flat cutting blade, a shield that moves proximally and distally from a precock position to an extended position, a precock lever to move the shield proximally to expose the flat cutting blade, and a shield retaining assembly to constrain the shield in the proximal position. "Precocking" the trocar of the present invention moves the shield from the distal position wherein the flat blade is covered, to a proximal position wherein the flat blade is exposed, and the shield is constrained by the shield retaining assembly. Once the flat cutting blade is exposed, the skin of the patient is incised with the flat cutting blade of the obturator. The flat blade of the trocar is inserted into the incision and a penetrating force is applied so that the flat blade penetrates into the internal body cavity of the patient. The obturator assembly is removed from the cannula assembly so that the surgical access port is provided into the internal body cavity of the patient. This method eliminates the need for a separate surgical sharp to initially incise the skin before penetration is effected.
摘要翻译：公开了一种建立内窥镜或关节镜手术的手术口的方法。套管针最初设有套管针，套管针的封闭器包括一个平切割刀片，一个护板，其近端和远端从一个预制座位移动到一个延伸位置;一个防护杆，用于向近侧移动护罩以露出平切刀; 屏蔽保持组件，以在近侧位置限制屏蔽。本发明的套管针的“预敷”将屏蔽件从扁平刀片被覆盖的远端位置移动到平坦刀片暴露的近侧位置，并且屏蔽件被屏蔽保持组件约束。一旦平面切割刀片被暴露，患者的皮肤就会被闭塞器的平面切割刀片切开。将套针针的扁平刀片插入切口中，并施加穿透力，使得扁平刀片穿透患者体内腔体。将闭塞器组件从套管组件移除，使得外科进入口被提供到患者的内部体腔中。该方法不需要单独的外科手术，以便在穿透之前最初切开皮肤。

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