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

Claim 13:
14. The steerable medical catheter according to claim 4,
wherein, at the distal end of the catheter body, the tool channel has a circular cross-section having an inner diameter,
wherein the housing portion of the positioning mechanism includes an oval-shaped tube having a long diameter and a short diameter, wherein the short diameter of the oval-shaped tube is smaller than the inner diameter of the tool channel,
wherein the one or more keying tabs of the anti-twist feature include two outward curved portions corresponding to the long diameter of the oval-shaped tube, and the two outward curved portions are pressure fit within the inner diameter of the tool channel, and
wherein the oval-shaped tube is configured to support the imaging device substantially concentric with the longitudinal axis, and support one or more of illumination optics, illumination electronics, and an auxiliary channel surrounding the imaging device.