Patent ID: 11925321
Assignee: CANON U.S.A., INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. The steerable catheter according to claim 4,
wherein, at the distal end of the catheter body, the tool channel has a circular cross-section of a predetermined diameter, and the one or more keyways are linear grooves formed on the surface of the tool channel,
wherein the housing portion of the positioning mechanism includes a portion of a cylindrical hypotube, and a diameter of the cylindrical hypotube is smaller than the predetermined diameter of the circular cross-section of the tool channel,
wherein the cylindrical hypotube includes a laser cut pattern which provides one or more linear tabs protruding radially from the housing portion, and the linear tabs extend in the lengthwise direction parallel to the longitudinal axis of the catheter body,
wherein the one or more keying tabs of the anti-twist feature include the one or more linear tabs of the laser cut pattern, and
wherein the one or more linear tabs of the hypotube are configured to fit into the linear grooves formed on the surface of the tool channel.