Patent ID: 9179826
Filing Date: 2015-11-10
Classification: A61B

Abstract:
1. An endoscope shaft having a proximal end and a distal end, the endoscope shaft comprising: a working channel, the working channel extending from a proximal end of the endoscope shaft to the distal end of the endoscope shaft, the working channel extending through the distal end of the endoscope shaft so that an instrument is able to pass through the distal end of the endoscope shaft and exit the distal end of the endoscope shaft parallel or essentially parallel to a longitudinal axis of the endoscope shaft; an adaptor located near the distal end of the endoscope shaft, the working channel being located within the adaptor, the adaptor guiding the working channel along the longitudinal direction of the adaptor from a proximal end of the adaptor to a distal end of the adaptor, the adaptor having an internal cross-sectional area that increases from a proximal end of a ramp built into the adaptor to a distal end of the ramp, the ramp being formed as a single piece structure with the adaptor; a push-pull wire bushing, the push-pull wire bushing extending in a longitudinal direction, where a distal end of the push-pull wire bushing abuts the proximal end of the adaptor, the ramp built into the adaptor allowing the instrument to pass over the push-pull wire bushing; and a push-pull wire disposed within the push-pull wire bushing, wherein the push-pull wire can reciprocate longitudinally to deflect the distal end of the endoscope shaft, wherein the adaptor is fully enclosed within the endoscope shaft and the distal end of the adaptor terminates proximal a distal end of the working channel, wherein the working channel comprises a flexible tube disposed within the endoscope shaft.