04969456 is referenced by 6 patents and cites 20 patents.

An apparatus for use in applying mouth to mouth resuscitation, having a tube for insertion into a victim's mouth and a circular, convex shield attached to one end of the tube. A one-way valve, within the tube, allows air to flow through the tube only in a direction away from the shield. A wafer mounted within the tube, is moveable between an open position and a closed position. The wafer has a plurality of notches spaced around the perimeter. The wafer is mounted between first and second annular shoulders within the valve. When the wafer is in the closed position, the first annular shoulder blocks airflow through the notches in the wafer. When the wafer is in the open position, the second annular shoulder allows air to flow through the notches. The apparatus also has a screen for preventing solids of a certain size or larger from entering the valve.

Title
Apparatus for use in applying mouth to mouth resuscitation
Application Number
7/100484
Publication Number
4969456
Application Date
September 24, 1987
Publication Date
November 13, 1990
Inventor
Johnny R Cooper
Arlington
TX, US
Assignee
Tri Jon
OR, US
IPC
A61M 16/00
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