Device and method for measuring pulsus paradoxus
First Claim
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1. A device for measuring pulsus paradoxus in a patient, comprising:
- an input for receiving data from a sensor indicative of pulsatile cardiovascular behavior of a patient;
a processor for extracting pulse data and respiration data from the pulsatile cardiovascular behavior data wherein said processor employs period amplitude analysis to said pulse data to generate data indicative of the presence of pulsus paradoxus in the patient.
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Abstract
A device and method are disclosed for electronically measuring the degree of pulsus paradox in a patient from a single patient date source. The single data source may be any device that outputs a waveform indicatiave of patient pulsatile cardiovascular behavior such as an optical plethysmograph, a pulse oximeter, or a blood pressure monitor. The invention is useful for rapidly assessing the status of a patient in acute respiratory distress for the purpose of objectively determining the severity of their condition.
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Citations
17 Claims
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1. A device for measuring pulsus paradoxus in a patient, comprising:
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an input for receiving data from a sensor indicative of pulsatile cardiovascular behavior of a patient;
a processor for extracting pulse data and respiration data from the pulsatile cardiovascular behavior data wherein said processor employs period amplitude analysis to said pulse data to generate data indicative of the presence of pulsus paradoxus in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for measuring pulsus paradoxus in a patient comprising the steps of:
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obtaining data indicative of pulsatile cardiovascular behavior from a patient;
extracting data indicative of respiration from the pulsatile cardiovascular behavior data;
extracting data indicative of pulse from the pulsatile cardiovascular behavior data;
employing period amplitude analysis to said extracted pulse data and said extracted expiration data; and
generating data indicative of presence of pulsus paradoxus in a patient from said period amplitude analysis. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification