Devices and methods for active decompression of the chest during circumferential constriction cardiopulmonary resuscitation
OwnerNorman Alan Paradisinventor
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Abstract
The present invention is a method for improving hemodynamics and clinical outcome of patients suffering cardiac arrest and other low-flow states by combination of circumferential constriction and anteroposterior compression decompression of the chest cardiopulmonary resuscitation. Anteroposterior compression decompression may be provided by a piston mechanism attached to a gantry above the patient. Circumferential constriction may be achieved by inflation of pneumatic bladders or shortening of a band. The on-off sequence and relative force of circumferential constriction and anteroposterior compression decompression may be adjusted so as to improve efficacy.
Claims17
A cardiopulmonary resuscitation (CPR) device to provide active forceful decompression of the thorax during circumferential constriction CPR, the CPR device comprising:
- an at least partially circumferential pneumatic constriction bladder vest adapted to surround the thorax of a patient;
- an inflatable cuirass structure external to the circumferential constriction pneumatic bladder vest, the inflatable cuirass structure including a pneumatic cuirass bladder that becomes rigid upon inflation to form the inflatable cuirass;
- a pneumatic drive unit configured to provide a forceful compression of the patient by forceful inflation of the bladder vest and configured to provide a forceful decompression of the patient by forceful deflation of the bladder vest, wherein forceful deflation of the bladder vest results in an outward pulling force on the patient, wherein the inflatable cuirass structure provides support that allows the circumferential constriction pneumatic bladder vest to apply an outward pulling force on the patient.
Dependencies are inferred from the claim text.