Ventilator adapter and auxiliary part thereof

A ventilator adapter comprising:

• a T-shaped flow guiding adapter and an auxiliary chamber detachably connected with the T-shaped flow guiding adapter, wherein:
• the T-shaped flow guiding adapter contains a T-shaped adapter and a guiding valve;
• the T-shaped adapter is a hollow tubing and contains a first opening and a second opening extending parallel to the left and right and mutually communicable with air to each other, and a third opening disposed in a vertical direction between the first opening and the second opening;
• the T-shaped adapter further comprises a fourth opening between the first opening and the second opening adapted for adapting a metered-dose inhaler;
• the hollow tubing of the T-shaped adapter forming a junction between the first opening, the second opening, and the third opening, wherein, at the third opening, the junction has a tapered neck and an auxiliary chamber receiving part, the inner diameter of the auxiliary chamber receiving part is larger than an inner diameter of the tapered neck, and the third opening is adapted with the guiding valve which can retractably open or close the third opening;
• the guiding valve contains a blocking piece, a resisting part, a connecting part connected between the blocking piece and the resisting part, and a stopper ring sheathed on the outside of the connecting part;
• the blocking piece is sized to fit in the junction, the first opening, and the second opening;
• the connecting part contains a spring and a spacer;
• the spacer is in a form of a flat plate for temporarily separating a channel between the first opening and the second opening;
• the stopper ring is provided on the outside of the connecting part, and a diameter of the stopper ring is smaller than an inner diameter of the third opening, and includes a ring part and a stopper piece, wherein the stopper piece extends vertically upward from a top of the ring part;
• and the resisting part is a disc-shaped perforated body that is configured for the third opening;
• the auxiliary chamber is a cylindrical hollow tubing and is open at both ends with a flow guiding valve fitting opening at a first end and an external medication fitting opening at a second end;
• and a chamber portion extending from the flow guiding valve fitting opening towards the external medication fitting opening to separate at least a portion of an interior of the auxiliary chamber into two chambers.