CONTACT waveguide for ultrasonic lithotripsy lumen of the common bile duct

摘要

A waveguide for contact ultrasonic lithotripsy in the lumen of the common bile duct, made in the form of a metal cylindrical rod with variable cross section, characterized in that the dummy proximal portion bent at an angle of 40 ° to the longitudinal axis of the intermediate part is formed as a conical base facing the proximal portion, the distal end of the working part is configured as a concave spherical surface.