Surgery – Respiratory method or device – Respiratory gas supply means enters mouth or tracheotomy...
Patent
1981-04-20
1982-12-28
Recla, Henry J.
Surgery
Respiratory method or device
Respiratory gas supply means enters mouth or tracheotomy...
128345, A61M 1600, A61M 2900
Patent
active
043656250
ABSTRACT:
An expandable airway has two elongated airway forming members having a curved one end portion for effecting insertion and removal of the one end portion of both into and out of the throat of a user and with one member configured to be disposed below the other member. The two members are connected for pivotal movement in response to a force applied at the other end portions of the members from a contracted state to at least one expanded state, wherein the one end portions are spaced apart relative to the contracted state. A mechanism is disposed on the other end portions of the two members for releasably maintaining the members in the at least one expanded state. The other end portions of the two elongated airway forming members have straight sections and the connection comprises a hinge at the straight sections including a first hinge element hingedly connected between the airway forming members and substantially perpendicular to both when the airway is in the contracted state and a second hinge element hingedly connected diagonally between the airway forming members and disposed between the first hinge element and the mechanism for releasably maintaining and spaced apart therefrom, wherein the spacing between the first and second hinge elements is greater at said one airway forming member.
REFERENCES:
patent: 1097978 (1914-05-01), Johnson
patent: 1275520 (1918-08-01), Bell
patent: 3470872 (1969-10-01), Grieshaber
patent: 3575163 (1971-04-01), Gasper
patent: 3636954 (1972-01-01), Weston
patent: 4263898 (1981-04-01), Wannag
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