Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donald H. Arnold0
Date of Patent
November 9, 2010
0Patent Application Number
113143180
Date Filed
December 21, 2005
0Patent Primary Examiner
Patent abstract
A method and apparatus are described for utilizing a source of vascular pulse waveform data from a patient for the purpose of measuring pulsus paradoxus. The arterial pulse waveform data source described is a pulse oximeter plethysmograph but can be any similar waveform data source, including an intra-arterial transducer, external blood pressure transducer, or plethysmograph. Through incorporation of measurements of values, such as an area under a pulse waveform curve, that are time-domain functions of a change in amplitude of the pulse waveform over a duration of the waveform, embodiments of the present invention represent a significant improvement upon previously described methods of measuring pulsus paradoxus.
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