US Patent 11660414 Patient interface device and retention assembly therefor

A retention assembly is for a patient interface device. The patient interface device includes a cushion member structured to engage a face of a patient. The retention assembly includes: a retention member structured to be coupled to the cushion member; a headgear member; a first interconnect member removably coupled to the retention member; and a second interconnect member removably coupled to the headgear member. The second interconnect member is removably coupled to the first interconnect member in order to couple the headgear member to the retention member.