SURGICAL ENDOSCOPE AND DISPOSABLE SHEATH THEREOF

摘要

A surgical endoscope and a disposable sheath thereof. An upper half part of the sheath is an endoscope channel (5) made from hard materials; an endoscope body (1) is arranged in the endoscope channel (5). A therapeutic channel (6) made from soft materials is arranged in a lower half part of the sheath for surgical instruments to pass through. An air intake valve (4) connected with a carbon dioxide gas source is arranged on a lateral surface of the sheath; an exposed end from a channel on a rear end closer (7) is connected with an anti-reflux cap.