摘要:
An anti-asphyxia valve (14) adapted to, in use, be disposed between a patient (21) and means (10) to deliver a breathable gas to the patient (20). The valve (14) comprises a housing (18, 20) having an interior, at least one port (30) to provide fluid communication between the housing interior and atmosphere and a flap means (32) comprising a first portion (34) adapted for mounting to the housing (18, 20) and a second portion (35) adapted to flex. The second portion (35) flexes between a first biased open position allowing gas to pass from the housing interior through the port(s) (30) to atmosphere when the difference in gas pressure in the housing interior and atmosphere is below a predetermined operating threshold and a second forced closed position substantially occluding the port(s) (30) when the difference in gas pressure between the housing interior and atmosphere is substantially equal to or above the operating threshold.
摘要:
Mask system includes frame (12), cushion (14), cushion clip (44), swivel elbow (16), headgear (124) and/or headgear clips (106) configured for use in a clinical or hospital environment. One or more components of the mask system configured to promote single patient use, for example, by providing an age indicator preventing disassembly, or cleaning.
摘要:
A mask system for use between a patient and a device to deliver a breathable gas to the patient includes a mouth cushion, a pair of nasal prongs, an elbow, and a headgear assembly. The mouth cushion is structured to sealingly engage around an exterior of a patient's mouth in use, and the pair of nasal prongs are structured to sealingly communicate with nasal passages of a patient's nose in use. The elbow delivers breathable gas to the patient. The headgear assembly maintains the mouth cushion and the nasal prongs in a desired position on the patient's face. The headgear assembly provides a substantially round crown strap that cups the parietal bone and occipital bone of the patient's head in use.
摘要:
A patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure attachable to the frame member.