Cardiopulmonary resuscitator massager pad
First Claim
1. A cardiopulmonary resuscitator massager pad comprising a compressible enclosure filled with a substantially incompressible fluid, said enclosure being adapted for mounting on a reciprocating compressor piston of a cardiopulmonary resuscitator for compression between the piston and a patient'"'"'s chest, said enclosure comprising a nonisoelastic structure that is deformable in directions parallel to the path of travel of said reciprocating compressor piston and that is rigid in directions transverse to the path of travel of said piston, whereby the compressive force of said piston is evenly distributed over a large area on the patient'"'"'s chest while providing direct correspondence between the displacement of said piston and the deflection of the patient'"'"'s chest.
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Accused Products
Abstract
A cardiopulmonary resuscitator massager pad is provided comprising a compressible, fluid filled nonisoelastic enclosure adapted for mounting on the reciprocal piston of a cardiopulmonary resuscitator. The massager pad includes means for restricting lateral expansion of the enclosure and a face, including means for evenly distributing the pressure of the fluid in the enclosure on the patient'"'"'s chest.
110 Citations
16 Claims
- 1. A cardiopulmonary resuscitator massager pad comprising a compressible enclosure filled with a substantially incompressible fluid, said enclosure being adapted for mounting on a reciprocating compressor piston of a cardiopulmonary resuscitator for compression between the piston and a patient'"'"'s chest, said enclosure comprising a nonisoelastic structure that is deformable in directions parallel to the path of travel of said reciprocating compressor piston and that is rigid in directions transverse to the path of travel of said piston, whereby the compressive force of said piston is evenly distributed over a large area on the patient'"'"'s chest while providing direct correspondence between the displacement of said piston and the deflection of the patient'"'"'s chest.
- 12. A cardiopulmonary resuscitator massager pad comprising a compressible enclosure filled with a substantially imcompressible fluid, said enclosure being adapted for mounting on a reciprocating compressor piston of a cardiopulmonary resuscitator for compression between the piston and a patient'"'"'s chest, said enclosure comprising a non-isoelastic structure that is deformable in directions parallel to the path of travel of said reciprocating compressor piston and that is rigid in directions transverse to the path of travel of said piston, said non-isoelastic structure comprising means for restricting lateral expansion of said enclosure, said enclosure further comprising a flexible fluid filled bellows and said means for restricting lateral expansion further comprising a sheet metal bellows encompassing said flexible bellows, whereby the compressive force of said piston is evenly distributed over a large area on the patient'"'"'s chest while providing direct correspondence between the displacement of said piston and the deflection of the patient'"'"'s chest.
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16. A cardiopulmonary resuscitator massager pad comprising in combination;
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a compressible enclosure adapted for mounting on a compressor piston for compression between the piston and a patient'"'"'s chest; a substantially incompressible fluid filling said enclosure; said enclosure comprising a nonisoelastic structure that is deformable in directions parallel to the path of travel of said reciprocating compressor piston and that is rigid in directions transverse to the path of travel of said piston, whereby the compressive force of said piston is evenly distributed over a large area of the patient'"'"'s chest while providing direct correspondence between the displacement of said piston and the deflection of the patient'"'"'s chest; a face disposed on said enclosure for engaging the patient'"'"'s chest; and said face including means for evenly distributing the pressure of said fluid on the patient'"'"'s chest.
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Specification