Cardiopulmonary resuscitator, defibrillator and monitor
First Claim
1. A cardiac compressor and defibrillator comprising in combination:
- a reciprocatable cardiac compressor means for cyclically compressing a patient'"'"'s chest;
an external cardiac compressor pad for positioning anterior to the patient'"'"'s heart, said compressor pad being connected to and actuated by said compressor means for compressing the patient'"'"'s sternum and heart;
an external electrode disposed on said compressor pad for compression between said compressor pad and the patient'"'"'s sternum;
a first internal electrode;
a means for positioning said first internal electrode in the patient'"'"'s esophagus, posterior to the patient'"'"'s heart;
a cardiac defibrillator means connected to said external and internal electrodes for establishing an electric current therebetween; and
a means for synchronizing said defibrillator means and said compressor means whereby a defibrillating current is applied to the patient'"'"'s heart only during compression of a patient'"'"'s heart.
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Accused Products
Abstract
A reciprocal cardiac compressor is provided for cyclically compressing a patient'"'"'s chest. The cardiac compressor includes a resuscitator for ventilating the patient'"'"'s lungs. A first internal electrode is positioned in the esophagus of the patient with an esophageal-pharyngeal airway. The resuscitator ventilates the patient'"'"'s lungs through the esophageal-pharyngeal airway. The cardiac compressor includes a compressor pad positioned anterior to the patient'"'"'s heart for compressing the patient'"'"'s sternum and heart. An external electrode is disposed on the face of the compressor pad for compression between the compressor pad and the patient'"'"'s sternum. A cardiac defibrillator is connected between external and internal electrodes for establishing a defibrillating electric current therebetween. A monitor is connected to the external and internal electrodes for monitoring the electrical activity of the patient'"'"'s heart. Means for synchronizing the defibrillator and the compressor is provided comprising a pressure sensitive switch for synchronizing the defibrillator and compressor such that defibrillating current is applied to the patient'"'"'s heart only during a systolic portion of the compression cycle of the compressor.
277 Citations
36 Claims
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1. A cardiac compressor and defibrillator comprising in combination:
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a reciprocatable cardiac compressor means for cyclically compressing a patient'"'"'s chest; an external cardiac compressor pad for positioning anterior to the patient'"'"'s heart, said compressor pad being connected to and actuated by said compressor means for compressing the patient'"'"'s sternum and heart; an external electrode disposed on said compressor pad for compression between said compressor pad and the patient'"'"'s sternum; a first internal electrode; a means for positioning said first internal electrode in the patient'"'"'s esophagus, posterior to the patient'"'"'s heart; a cardiac defibrillator means connected to said external and internal electrodes for establishing an electric current therebetween; and a means for synchronizing said defibrillator means and said compressor means whereby a defibrillating current is applied to the patient'"'"'s heart only during compression of a patient'"'"'s heart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A cardiopulmonary resuscitator and defibrillator comprising in combination:
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a reciprocatable cardiac compressor means for cyclically compressing a patient'"'"'s chest; an external cardiac compressor pad for positioning anterior to the patient'"'"'s heart, said compressor pad being connected to and actuated by said compressor means for compressing the patient'"'"'s heart; an external electrode disposed on said compressor pad for compression between said compressor pad and the patient'"'"'s sternum; an esophago-pharyngeal airway including first and second tubes extending into the patient'"'"'s esophagus and pharynx, respectively, and means for sealing said first and second tubes in the patient'"'"'s esophagus and oral cavity, respectively; a means for ventilating the patient'"'"'s lungs connected to said second tube; a first internal electrode disposed on said first tube and positionable posterior to the patient'"'"'s heart; a cardiac defibrillator means connected to said external and internal electrodes for establishing an electric potential therebetween; a pressure sensitive switch for sensing pressure applied to the patient'"'"'s heart by said compressor means, said switch synchronizing said defibrillator means and said compressor means, whereby a defibrillating current is applied to the patient'"'"'s heart only during a systolic portion of a compression cycle of said compressor means; and a means for monitoring the electrical activity of the patient'"'"'s heart connected to said external and internal electrodes.
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Specification