The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Jan. 07, 2014
Intuitive Surgical Operations, Inc., Sunnyvale, CA (US);
Samuel T. Crews, Palomar Park, CA (US);
Andrew Crews, San Jose, CA (US);
Edward P. Donlon, San Jose, CA (US);
Craig Gerbi, Half Moon Bay, CA (US);
Kenneth L. Gong, San Jose, CA (US);
Karnarnadakala D. Krishnanand, San Jose, CA (US);
Peling Lee, Palo Alto, CA (US);
Theodore W. Rogers, Alameda, CA (US);
John Ryan Steger, Sunnyvale, CA (US);
Charles E. Swinehart, San Jose, CA (US);
INTUITIVE SURGICAL OPERATIONS, INC., Sunnyvale, CA (US);
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.