METHODS AND APPARATUS FOR REMOVING MATERIAL FROM WITHIN A MAMMALIAN CAVITY USING AN INSERTABLE ENDOSCOPIC INSTRUMENT

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. A method of removing material from within a mammalian cavity of a patient, comprising:
inserting a flexible endoscope within an opening to a mammalian cavity of a patient, the flexible endoscope inserted within the opening via a distal end of the endoscope; disposing a surgical cutting assembly within an instrument channel of the flexible endoscope, the surgical cutting assembly inserted into the instrument channel via an instrument channel opening to the instrument channel at a proximal end of the endoscope that remains outside the opening to the mammalian cavity, the surgical cutting assembly including a cutter assembly having an outer cannula, an inner cannula disposed within an outer cannula, and a cutting window defined along a portion of a radial wall of the outer cannula, a proximal end of the inner cannula fluidly coupled to an aspiration channel that extends along a length of the flexible endoscope, the inner cannula configured to rotate relative to the outer cannula to cut material entering the cutting window of the outer cannula; positioning, by rotating the outer cannula of the surgical cutting assembly, the cutting window at the material within the mammalian cavity to be resected; providing torque to rotate the inner cannula relative to the outer cannula, the torque provided to the inner cannula via a flexible torque component extending from a proximal end of the endoscope to the distal end of the endoscope, the torque sufficient to rotate the inner cannula relative to the outer cannula to resect at least a portion of the material entering the cutting window of the outer cannula; and actuating a sample retrieval component of the surgical cutting assembly to remove the resected material via the aspiration channel.