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1. (WO2018144565) MECHANISMS FOR CONTROLLING ROTATION OF OUTER CANNULA FOR USE IN ENDOSCOPIC TOOL

Pub. No.:    WO/2018/144565    International Application No.:    PCT/US2018/016177
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Thu Feb 01 00:59:59 CET 2018
IPC: A61B 17/32
A61B 17/3203
Applicants: INTERSCOPE, INC.
Inventors: RYAN, Jeffery B.
Title: MECHANISMS FOR CONTROLLING ROTATION OF OUTER CANNULA FOR USE IN ENDOSCOPIC TOOL
Abstract:
A surgical instrument includes a cutting assembly, an outer tubing, and a flexible torque component. The cutting assembly extends from a first proximal end to a first distal end. The cutting assembly includes an outer cannula defining a cutting window and an inner cannula disposed within the outer cannula. The outer tubing extends from a proximal tubing end to a distal tubing end. The distal tubing end is coupled to the outer cannula. The outer tubing is configured to receive a torque at the proximal tubing end and transmit the torque to the outer cannula to rotate the outer cannula. The outer tubing includes a plurality of first wires and a plurality of second wires each including more than eight wires and less than twenty four wires. The flexible torque component is coupled to a third proximal end of the inner cannula to rotate the inner cannula.