Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ammar Al-Ali0
Date of Patent
February 18, 2014
0Patent Application Number
120110110
Date Filed
January 22, 2008
0Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A perfusion trend indicator inputs a plethysmograph waveform having pulses corresponding to pulsatile blood flow within a tissue site. Perfusion values are derived corresponding to the pulses. Time windows are defined corresponding to the perfusion values. Representative perfusion values are defined corresponding to the time windows. A perfusion trend is calculated according to differences between representative perfusion values of adjacent ones of the time windows.
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