Artificial airway device

Details Artificial airway device Artificial airway device

1993-02-01

1994-04-26

Burr, Edgar S.

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

12820024, 264295, 264501, A61M 1600

Patent

active

053057430

ABSTRACT:
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.

REFERENCES:
patent: D162333 (1951-03-01), Moore
patent: 1916527 (1933-07-01), Pastir
patent: 2804123 (1957-08-01), Kling
patent: 4509514 (1985-04-01), Brain
patent: 4995388 (1991-02-01), Brain

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