Title:
IMPROVEMENTS RELATING TO RESPIRATORY MASKS
Document Type and Number:
WIPO Patent Application WO/2015/097265
Kind Code:
A3
Abstract:
A sealing cushion (16) for a respiratory mask assembly (10) has a patient interface portion (18) having a resiliently deformable membrane (24) for engagement with a patient's face, and an aperture (26) formed therein for receiving a nasal and/or mouth region of a patient's face. An inner surface of the membrane has a plurality of projections (32, 34, 36, 38, 40). The projections (32, 34, 36, 38, 40) are arranged such that each projection (32, 34, 36, 38, 40) is engageable with an adjacent projection (32, 34, 36, 38, 40) on deformation of the membrane (24) during engagement of the membrane (24) with the patient's face, in use, thereby providing the membrane (24) with an increased resistance to deformation in a deformed configuration.
Inventors:
BOWSHER RICHARD FRANCIS (GB)
Application Number:
PCT/EP2014/079274
Publication Date:
August 27, 2015
Filing Date:
December 23, 2014
Export Citation:
Assignee:
INTERSURGICAL AG (LI)
International Classes:
A62B18/08; A61M16/06
Domestic Patent References:
| WO2013108145A1 | 2013-07-25 | |||
| WO2014141029A1 | 2014-09-18 |
Foreign References:
| US4907584A | 1990-03-13 | |||
| US20080006277A1 | 2008-01-10 | |||
| US4951664A | 1990-08-28 |
Attorney, Agent or Firm:
COOPER, Simon et al. (BioCity NottinghamPennyfoot Street,Nottingham, Nottinghamshire NG1 1GF, GB)
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