Endoscope including a torque generation component or torque delivery component disposed within an insertable portion of the endoscope and a surgical cutting assembly insertable within the endoscope

摘要

An endoscope for removing tissue at a surgical site includes an elongated tubular body insertable within a mammalian cavity of a patient. An instrument channel extends between a first opening at a distal end and a second opening at a proximal end of the tubular body and is sized and configured to receive a surgical cutting assembly that includes an aspiration channel configured to remove material entering the endoscope via a distal end of the surgical cutting assembly. A torque generation component configured to generate torque is positioned within the distal end and configured to provide the generated torque to a coupling component. The coupling component is positioned at the distal end of the elongated tubular member and configured to actuate a cutting component of the surgical cutting assembly responsive to actuation of the torque generation component.

主权项

1. An endoscopic assembly, comprising:
a flexible endoscopic instrument including:
a cutting assembly configured to resect material at a site within a subject, the cutting assembly including an outer cannula and an inner cannula disposed within the outer cannula, the outer cannula defining an opening through which material to be resected enters the cutting assembly;a flexible outer tubing coupled to the outer cannula and configured to cause the outer cannula to rotate relative to the inner cannula, the flexible outer tubing having an outer diameter that is smaller than an instrument channel in which the flexible endoscopic instrument is insertable;an aspiration tube having a portion disposed within the flexible outer tubing, the aspiration tube having a distal end coupled to the inner cannula, the aspiration tube defining a portion of an aspiration channel through which the material resected by the cutting assembly is removed;wherein the aspiration channel is partially defined by an inner wall of the aspiration channel and an inner wall of the inner cannula and extending from an opening defined in the inner cannula to a proximal end of the aspiration tube; andan irrigation channel having a first portion defined between an outer wall of the aspiration tube and an inner wall of the flexible outer tubing and configured to carry irrigation fluid to the aspiration channel; and an endoscope within which the flexible endoscopic instrument is insertable, the endoscope including
an elongated tubular body having a distal end and a proximal end, the distal end sized to be inserted within a mammalian cavity of a patient and including a camera configured to capture images of the mammalian cavity, the distal end extending a predetermined length from a distal tip that is at least less than half of a length of the elongated tubular body;the instrument channel of the endoscope extending between a first opening at the distal end and a second opening at the proximal end, the instrument channel sized and configured to receive the flexible endoscopic instrument;a torque generation component configured to generate torque and positioned within the distal end of the elongated tubular body, the torque generation component configured to provide the generated torque to a coupling component responsive to actuation of the torque generation component; and wherein the coupling component is integral to the distal end of the elongated tubular body and positioned adjacent to or surrounding the instrument channel, the coupling component configured to rotate the inner cannula of the cutting assembly of the flexible endoscopic instrument responsive to actuation of the torque generation component.