Methods and devices for performing cardiopulmonary resuscitation
First Claim
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1. A method for increasing cardiopulmonary circulation when performing cardio pulmonary resuscitation which involves a compression phase and a decompression phase, the method comprising:
- actively compressing a patient'"'"'s chest during the compression phase; and
stimulating at least some of the respiratory muscles to contract to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase, thereby enhancing the amount of venous blood flow into the heart and lungs.
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Abstract
Provided are exemplary devices and methods for increasing cardiopulmonary circulation when performing cardiopulmonary resuscitation. In one exemplary method, a patient'"'"'s chest is actively compressed during a compression phase. At least some of the respiratory muscles are stimulated to contract during a decompression phase to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase. In this way, the amount of venous blood flow into the heart and lungs is enhanced.
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Citations
20 Claims
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1. A method for increasing cardiopulmonary circulation when performing cardio pulmonary resuscitation which involves a compression phase and a decompression phase, the method comprising:
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actively compressing a patient'"'"'s chest during the compression phase; and
stimulating at least some of the respiratory muscles to contract to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase, thereby enhancing the amount of venous blood flow into the heart and lungs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device to assist in the performance of a cardio pulmonary resuscitation procedure, the device comprising:
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a compression member which is adapted to be placed in the proximity of the sternum and to be operated to compress the chest, the compression member including a sensor to determine when the patient'"'"'s chest has been compressed; and
at least one electrode coupled to the sensor that is adapted to deliver electrical current to at least some of the respiratory muscles to cause the stimulated respiratory muscles to contract, wherein the electrode is adapted to deliver the electrical current to the respiratory muscles based on information from the sensor regarding the state of chest compression. - View Dependent Claims (12, 13, 14)
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15. A method for increasing cardiopulmonary circulation when performing cardio pulmonary resuscitation which involves a compression phase and a decompression phase, the method comprising:
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actively compressing a patient'"'"'s chest during the compression phase;
sensing compression of the patient'"'"'s chest; and
stimulating at least some of the respiratory muscles to contract after sensing the chest compression to cause an increase in the magnitude and duration of negative intrathoracic pressure during the decompression phase, thereby enhancing the amount of venous blood flow into the heart and lungs. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification