09307928 is referenced by 49 patents and cites 541 patents.

A plethysmographic respiration processor is responsive to respiratory effects appearing on a blood volume waveform and the corresponding detected intensity waveform measured with an optical sensor at a blood perfused peripheral tissue site so as to provide a measurement of respiration rate. A preprocessor identifies a windowed pleth corresponding to a physiologically acceptable series of plethysmograph waveform pulses. Multiple processors derive different parameters responsive to particular respiratory effects on the windowed pleth. Decision logic determines a respiration rate based upon at least a portion of these parameters.

Title
Plethysmographic respiration processor
Application Number
13/76423
Publication Number
9307928 (B1)
Application Date
March 30, 2011
Publication Date
April 12, 2016
Inventor
Anmol Majmudar
Irvine
CA, US
Ammar Al Ali
San Juan Capistrano
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
MASIMO CORPORATION
CA, US
IPC
A61B 5/08
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