Blow vent circle device that gastrocopy was used

The utility model provides a blow vent circle device that gastrocopy was used belongs to medical instrument technical field. It has solved the current mouthpart that props in the use, and patient may appear lifting on the root of the tongue and causes the respiratory track to seal a bit to dyspneic problem appears. This blow vent circle device that gastrocopy was used remains the mouth circle and the face guard of the state of opening throughout including the mouth that is used for making the patient, mouthful tubular structure that the circle runs through for both ends, the mouth circle sets up and is in on the medial surface of face guard, inside convex breather pipe still has on the medial surface of face guard, the breather pipe has the circular arc section just the circular arc section can stretch into the patient and just paste the root of the tongue by pushing down the patient in the mouth, the breather pipe is located one side of mouth circle. The root of the tongue by pushing down the patient can be