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。

公开(公告)号：US20160193001A1

公开(公告)日：2016-07-07

申请号：US14911977

申请日：2014-08-14

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Peling LEE ,  Theodore W. ROGERS ,  John Ryan STEGER ,  Matthew R. WILLIAMS

IPC: A61B34/00 ,  A61B34/30

CPC classification number: A61B34/71 ,  A61B18/1445 ,  A61B34/30 ,  A61B90/70 ,  A61B2017/00544 ,  A61B2017/2901 ,  A61B2017/2948 ,  A61B2034/302

Abstract: A shaft for a surgical instrument comprises an outer tube having a proximal end and a distal end, a central lumen extending through the outer tube, and a plurality of stiffening rods positioned around the central lumen. The plurality of stiffening rods may comprise a nonconductive material. The shaft may form part of an electrosurgical instrument. In another embodiment, a surgical instrument may comprise an end effector and a shaft having an outer tube having a proximal end and a distal end, a drive rod, and at least four stiffening rods positioned around the drive rod, each stiffening rod being positioned substantially immediately adjacent to the drive rod. The axial stiffness of the shaft increases incrementally during actuation of the end effector.

Abstract translation: 用于外科器械的轴包括具有近端和远端的外管，延伸穿过外管的中心腔和围绕中心腔定位的多个加强杆。 多个加强杆可以包括非导电材料。 轴可以形成电外科器械的一部分。 在另一个实施例中，外科器械可以包括端部执行器和具有外管的轴，所述外管具有近端和远端，驱动杆和围绕驱动杆定位的至少四个加强杆，每个加强杆基本上被定位 紧邻驱动杆。 在末端执行器的致动期间，轴的轴向刚度增加。