ENDOSCOPE WITH CONTINUOUS LUMINAL PERFUSION AND REFLUX FUNCTIONS

摘要

This invention provides an endoscope with continuous luminal perfusion and reflux functions which comprises an endoscope handle (1), a hard sheath and a soft sheath (6). The proximal end of the hard sheath is connected with the endoscope handle (1). The soft sheath (6) is located within the hard sheath and the soft sheath (6) can axially extend from the inside of the hard sheath and rotate circumferentially. The endoscope is characterized in that a drainage channel (9) is axially arranged between the outer wall of the soft sheath (6) and the inner wall of the hard sheath. A water inlet (8) communicated with the drainage channel (9) is circumferentially arranged on the distal end of the hard sheath, and a water outlet (7) communicated with the drainage channel (9) is arranged on the rear-middle part of the hard sheath. The endoscope is simple in structure and convenient to process and assemble, and the adoption of the technical solution that the drainage channel (9) is arranged between the outer wall of the soft sheath (6) and the inner wall of the hard sheath enables the endoscope to utilize the drainage channel (9) for drainage and perfusion during an operation.