High efficiency external counterpulsation apparatus and method for controlling same
First Claim
1. A method of controlling an external counterpulsation apparatus comprising:
- selecting a patient treatment pressure;
outputting a signal corresponding to said selected treatment pressure;
detecting a pressure of a compressed fluid reservoir;
comparing said selected treatment pressure to said compressed fluid reservoir pressure; and
controlling a pressure regulator valve based on a difference between said patient treatment pressure and said compressed fluid reservoir pressure.
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Abstract
A method of controlling an external counterpulsation apparatus includes selecting a patient treatment pressure; outputting a signal corresponding to the selected treatment pressure; detecting a pressure of a compressed fluid reservoir; comparing the selected treatment pressure to the compressed fluid reservoir pressure; and controlling a pressure regulator valve based on a difference between the patient treatment pressure and the compressed fluid reservoir pressure. The compressed fluid reservoir pressure may be decreased when the compressed fluid reservoir pressure is greater than a preset difference from the patient treatment pressure, particularly by venting the compressed fluid reservoir to atmosphere. The compressed fluid reservoir pressure may be necessary when the compressed fluid reservoir pressure is less than a preset difference from the patient treatment pressure, particularly by operating a compressor.
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Citations
12 Claims
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1. A method of controlling an external counterpulsation apparatus comprising:
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selecting a patient treatment pressure; outputting a signal corresponding to said selected treatment pressure; detecting a pressure of a compressed fluid reservoir; comparing said selected treatment pressure to said compressed fluid reservoir pressure; and controlling a pressure regulator valve based on a difference between said patient treatment pressure and said compressed fluid reservoir pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification