0139363-A1 is referenced by 54 patents and cites 7 patents.

A breathing valve (10) having a valve chamber (16) with a two-way opening (36) for exit of exhaled gases and through which atmospheric air may be drawin in, a valve member (40) in the chamber (16), a one-way flow opening (54) in the valve member (40) through which gas may flow from the chamber (16) to a patient for breathing, and preventing return flow in the opposite direction, a movable valve closure forming part (44,48) of the valve member (40) movable into and out of sealing engagement with the two-way opening (36), and a pressure responsive device (50) in the valve member (40) responsive to obstruction of gas flow into the chamber (16) and further responsive to inspiratory effort by a patient to cause the valve member (40) to move away from the two-way opening (36) to permit air to flow through in the two-way opening (36) into the chamber (16) for inhalation.; Also disclosed is a manual resuscitation bag (80) for use with such a valve (10) of football shape, with an inlet (86) at one said end, and an outlet (88) at the other end, flod-rings (94,96,98) in each end (86,88) of reduced thickness, may be telescoped, ridges (104,106) between the fold-rings (94,96,98), and the centre (84) of the bag (80) having a wall thickness equal to the thickness of the ridges (104,106) and having longitudinal ribs (104) on the outer surface of the centre (84) of the bag (80) providing increased resiliency.

Title
Breathing apparatus.
Application Number
EP19840305244 19840801
Publication Number
0139363 (A1)
Application Date
August 1, 1984
Publication Date
May 2, 1985
Inventor
Flynn Stephen D
CA
Assignee
O Two Systems Int
CA
IPC
A61M 16/20
A61M 16/00
A61M 16/20
A61M 16/00
A61M 16/20
A61M 16/00
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