Valve for resuscitator apparatus
First Claim
1. A valve for use with resuscitator apparatus including a resuscitator bag, a reservoir bag and a coupling connecting the bags, the coupling including a wall forming an interior space which is in flow communication with the reservoir bag, said valve comprising a valve body having a port formed therein, said valve body being mountable in said wall of said coupling between the interior space and the ambient space, said valve further comprising a reed flapper hinged on said valve body on one side of said port, said reed flapper having a normal position wherein said reed flapper extends across and substantially closes said port, said reed flapper being movable to open said port to enable flow into or out of the interior space.
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Accused Products
Abstract
This disclosure relates to a valve for a resuscitator apparatus including a resuscitator bag and a reservoir bag. The valve is mounted in a coupling between the two bags. The valve comprises a reed flapper in a housing, the reed flapper having one side exposed to the interior pressure and another side exposed to the ambient pressure. The reed flapper is movable in response to a higher interior or ambient pressure (a pressure differential), to open a housing port to allow flow out of or in to the reservoir bag interior. The valve further includes a biasing part to increase the opening pressure differential in one direction or the other.
39 Citations
18 Claims
- 1. A valve for use with resuscitator apparatus including a resuscitator bag, a reservoir bag and a coupling connecting the bags, the coupling including a wall forming an interior space which is in flow communication with the reservoir bag, said valve comprising a valve body having a port formed therein, said valve body being mountable in said wall of said coupling between the interior space and the ambient space, said valve further comprising a reed flapper hinged on said valve body on one side of said port, said reed flapper having a normal position wherein said reed flapper extends across and substantially closes said port, said reed flapper being movable to open said port to enable flow into or out of the interior space.
- 11. Resuscitator apparatus, comprising a resuscitator bag, a reservoir bag, a check valve assembly connecting said bags and enabling flow from said reservoir bag into said resuscitator bag, supply means for conducting an auxiliary gas into said reservoir bag, and a valve connected between the interior of said reservoir bag and the ambient space, said valve comprising a reed flapper to enable flow into said reservoir bag interior from said ambient space or out of said reservoir bag to said ambient space.
Specification