Tracheal connector with a flow restrictive mechanism

A tracheal connector connected to a respiratory gas generator configured to supply a respiratory gas to a subject and a tracheal tube inserted into a trachea of the subject, wherein

• the tracheal connector comprising:
• a tracheal connector body connected to the tracheal tube;
• a connector tube connected to the tracheal connector body and the respiratory gas generator;
• a respiratory gas flow path configured to flow the respiratory gas in the respiratory gas flow path;
• and
• a restriction mechanism configured to narrow the respiratory gas flow path so that a flow of the respiratory gas is restricted and accelerated,
• the tracheal connector body comprising:
• a tracheal port connected to the tracheal tube;
• an exhaust port facing the tracheal port and configured to discharge at least expired air of the subject;
• and
• a respiratory port connected to the connector tube, wherein
• the restriction mechanism is provided on the respiratory gas flow path between the respiratory port and the tracheal port;
• the connector tube includes:
• a first connection end connected to the respiratory port;
• and
• a second connection end located on a side opposite to the first connection end and connected to the respiratory gas generator, and
• the restriction mechanism is provided at the first connection end.