Device and method for measuring pulsus paradoxus
DCFirst Claim
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1. A method for measuring pulsus paradoxus in a patient comprising the steps of:
- 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; and
using the respiration data and the pulse data to determine pulsus paradoxus.
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Abstract
A device and method are disclosed for electronically measuring the degree of pulsus paradoxus in a patient from a single patient data source. The single data source may be any device that outputs a waveform indicative 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
14 Claims
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1. 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; and using the respiration data and the pulse data to determine pulsus paradoxus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device for measuring pulsus paradoxus in a patient, the device 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 and for generating data indicative of presence of pulsus paradoxus from the pulse data and the respiration data; and an output for outputting at least one of the pulse data, the respiration data, and the data indicative of presence of pulsus paradoxus. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification