Abstract: A cannula subject to receiving electric charge via capacitive coupling is configured to provide an easily connectable path to remove the charge. The cannula is further configured with a flared distal end to prevent scraping contact with a surgical instrument shaft. Embodiments of the cannula may be used in surgical procedures in which the cannula does not contact the patient.
Type:
Grant
Filed:
November 15, 2010
Date of Patent:
November 3, 2015
Assignee:
INTUITIVE SURGICAL OPERATIONS, INC.
Inventors:
Tyler J. Morrissette, Joseph P. Orban, III