公开(公告)号：US20140194895A1

公开(公告)日：2014-07-10

申请号：US14149535

申请日：2014-01-07

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Samuel T. CREWS ,  Andrew CREWS ,  Edward P. DONLON ,  Craig GERBI ,  Kenneth L. GONG ,  Krish KRISHNANAND ,  Peling LEE ,  Theodore W. ROGERS ,  John Ryan STEGER ,  Charles E. SWINEHART

IPC: A61B19/00 ,  A61B17/34

CPC classification number: A61B34/30 ,  A61B17/3421 ,  A61B2017/00845 ,  A61B2017/2926 ,  Y10T29/49826

Abstract: A surgical apparatus includes a cannula and a surgical instrument. The cannula includes a curved longitudinal axis along at least a portion of its length. The surgical instrument includes an elongated shaft having a distal end and a proximal end, and an end effector coupled to the distal end of the elongated shaft. At least a portion of the end effector is configured to contact an inner surface of the cannula during insertion of the surgical instrument into the curved cannula. A threshold galling stress between the portion of the end effector and an inner surface of the curved cannula is at least 10,000 pounds per square inch.

Abstract translation: 外科手术器械包括套管和手术器械。 插管包括沿其长度的至少一部分的弯曲纵向轴线。 外科器械包括具有远端和近端的细长轴和连接到细长轴的远端的端部执行器。 端部执行器的至少一部分构造成在将外科器械插入弯曲套管期间接触套管的内表面。 端部执行器的部分和弯曲套管的内表面之间的阈值磨损应力为至少10,000磅/平方英寸。