Laryngeal mask assemblies

Details Laryngeal mask assemblies Laryngeal mask assemblies

A - Human Necessities

61

M

A61M 16/06 (2006.01) A61M 16/04 (2006.01)

Patent

CA 2254160

Known laryngeal mask assemblies have an inflatable cuff mounted at the patient end of a tube. In the present invention the cuff has a region on its anterior surface and a region on its posterior surface that expand preferentially when gas pressure is increased. The cuff is inflated for insertion at low pressure such that the cuff takes one shape and is then further inflated when positioned correctly such that the region on the anterior surface expands and engages the epiglottis and such that the region on the posterior surface expands and engages the adjacent tissue, pushing the anterior surface forwardly.

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