Patent ID: 9668643
Date: 2017-06-06
CPC Classifications: A61B,Y10T

Claim:
1. A visualization system comprising: a duodenoscope comprising an accessory channel and a side-exiting accessory elevator at a distal end of the accessory channel; and an oblong catheter having an oblong cross-sectional profile, wherein the oblong catheter is disposed in the accessory channel of the duodenoscope, wherein the oblong catheter is configured to engage with the side-exiting accessory elevator at the distal end to exit the duodenoscope, and wherein the oblong catheter comprises: wherein the accessory channel has an internal diameter, wherein the side-exiting accessory elevator defines a maximum diameter for a circular cross-section catheter to have in order to pass through the side-exiting accessory elevator, wherein the oblong cross-sectional profile has a diameter defined by a major axis that is greater than the maximum diameter, and wherein the working channel and the lens stack are laterally positioned side-by-side along the major axis of the oblong cross-sectional profile.