Disposable head of respiration machine

The utility model discloses a disposable head of a respiration machine, which comprises a bent tube shell with joints on both ends. The utility model is characterized in that a high elastic film sleeve tube is arranged in the lumen of the shell, the periphery of one end of the film sleeve tube is opened and fixed on the inner wall of a straight connector, the other end is provided with an opening piece which tightly ensures the film sleeve tube to clamp on the clamping ring at the bent opening point fixedly, the clamping ring is fixed on the tube wall, and at least two vent holes are arranged on the tube wall near to the joint point of a straight tube. The inner wall of the shell is formed into an air passage which is combined by a closed air passage and an open air passage. The utility model can reduce the respiration dead spaces and can avoid the occurrence of asphyxia of patients caused by the faults of respiration machines The utility model has the advantages of simple structure and low cost.