Patent ID: 9149596
Filing Date: 2015-10-06
Classification: A41D,A44B,A61M

Abstract:
1. A mechanism for releasing a mask from a patient's face, comprising: a frame part comprising a male connection member and a frame engagement portion adapted to releasably engage a cooperating portion of the mask, a terminus of the frame engagement portion comprising an interface structure adapted to interlock with the cooperating portion of the mask, the interface structure comprising part of an arm and slot interlocking system; a headgear part comprising a female connection member adapted to receive the male connection member when the frame part is inserted into the headgear part, and a headgear engagement portion adapted to engage a cooperating portion on a headgear of the mask, wherein the male connection member comprises a resilient arm having a lip and the female connection member comprises a slot that receives the arm and an aperture in the slot that receives the lip; and a cord having one end secured to the male connection member, such that when the cord is pulled by the patient the male connection member disengages from the female connection member and consequently the frame part separates from the headgear part releasing the mask from the patient's face, wherein the cord is attached to the resilient arm whereby pulling on the cord disengages the lip of the resilient arm from the aperture of the slot to permit release of the mask from the patient's face and the frame part includes a transverse wall adapted to direct a tension force on the cord to disengage the lip from the aperture when the cord is pulled in a range of about 180 degrees extending from left to right and in a range of about 120 degrees extending up-to-down, wherein the interface structure of the frame part comprises a tongue and resilient legs on opposite sides of the tongue, the cooperating portion of the mask comprises a receptacle integral with a frame of the mask, and the tongue and the resilient legs are insertable into the receptacle.