Device for detecting leakage of air in respiratory mask, has case comprising fixation opening that is formed at end of respiratory mask for fixing detecting device on respiratory mask

摘要

The device has a case (1) comprising a fixation opening formed at an end of a respiratory mask to fix a detecting device on the respiratory mask. A pressure drop detecting device (4) is connected with a pressure sensor (9) for receiving information from the pressure sensor. The fixation opening is provided with a threading unit. The case comprises a threading male and a threading female, where the threading male is located on a cylindrical portion of the case.