Apparatus and methods for assisting cardiopulmonary resuscitation
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United States of America Patent
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Mar 4, 2003
Issued Date -
N/A
app pub date -
Apr 10, 2000
filing date -
Nov 9, 1993
priority date (Note) -
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Abstract
According to the invention, methods and devices for increasing cardiopulmonary circulation induced by chest compression and decompression when performing cardiopulmonary resuscitation are provided. Cardiopulmonary circulation is increased according to the invention by impeding airflow into a patient's lungs to enhance the extent and duration of negative intrathoracic pressure during decompression of the patient's chest. Enhanced extent and duration of negative of intrathoracic pressure thus promotes venous blood flow into the heart and lungs from the peripheral venous vasculature. In one embodiment, impeding the airflow into the patient's lungs is accomplished by placing a ventilation tube in the patient's airway.
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