Medical anal canal of inflatable

The utility model relates to a medical instrument field specifically is a medical anal canal of inflatable, and including large aperture drainage tube and the drainage bag that is connected with the drainage tube, the drainage tube is close to the front end and is equipped with the airbag, and the drainage tube is the double tube, forms the gas ducting between the outer pipe wall of double tube and the inlayer pipe wall, is drainage pipeline between the inlayer pipe wall of double tube, be equipped with two imports on the drainage tube, the import is including the inflation inlet of using medicine mouthful with connecting outer pipe wall of connecting the inlayer pipe wall, and the mouth of using medicine is located inflation inlet and mutual isolation division, inflation opening connectedhas air filler valve, the drainage tube is provided with the jam card with the junction of drainage bag, and the export of drainage bag is equipped with controllable valve. The utility model discloses a solve the joint of tr