Artificial airway device

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United States of America Patent

PATENT NO 5305743





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A manufacturing process to produce a laryngeal mask substantially as described in UK Patent GB2205499B consists in a mould which manufactures the inflatable annular ring formation of the device in an inverted form. This allows a more rigid core in the cavity mould or alternatively a dip-moulding process, which in turn permits greater accuracy in control of wall thickness. An alternative form of the mould eliminates the need to assemble a further component, by incorporating the latter into the same single moulding process. And in a further alternative embodiment, the same single moulding process additionally provides an integrally formed inlet for oesophagus drainage, independent of the larynx-venting function of the mask per se.

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Inventor Name Address # of filed Patents Total Citations
Brain, Archibald I J St. Andrews, Abney Court Drive, Bourne End, Bucks, GB 48 2035

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