Technical Bulletin #5, Masimo Charts

Masimo Chartstechnical bulletinPulse Oximetry Overview,Masimo SET ® vs Tyco-Nellcor ® and Philips ®How do Masimo SET pulse oximetry parallel engines work?Masimo uses a highlysophisticated adaptive filterwith DST ® and four otherR/IR(ConventionalPulse Oximetry)MEASCONFPostProcessorparallel engines, to leverageeach algorithm’s uniqueAdaptiveFilter withDST TMMEASCONFstrengths to ensure accuratereadings through all patientconditions.R/IRDigitized,Filtered &NormalizedFST TMAdaptiveFilter withSST TMMEASCONFMEASCONFConfidenceBasedArbitratorSaturationProprietaryAlgorithm 4MEASCONFmasimo corporation 40 parker irvine ca 92618 www.masimo.comHow does the Masimo SET DST algorithm work?Masimo SET’s most powerfulalgorithm is DST. All algorithmsdepend upon assumptions.The more assumptions, theweaker the algorithm. DSTmakes only one assumption –that arterial blood has a higheroxygenation than venous– making it the most powerfulpulse oximetry algorithm.

Masimo Chartstechnical bulletincomparison of Masimo SET to other pulse oximetry algorithmsR/IR(ConventionalPulse Oximetry)MEASCONFPostProcessorMasimo uses a highlysophisticated adaptive filterAdaptiveFilter withDST TMMEASCONFwith DST and four otherparallel engines, to leverageR/IRDigitized,Filtered &NormalizedFST TMMEASCONFConfidenceBasedArbitratorSaturationeach algorithm’s uniquestrengths to ensure accuratereadings through all patientAdaptiveFilter withSST TMMEASCONFconditions.ProprietaryAlgorithm 4MEASCONFNellcor 404/506 (N-395/N-595)Philips/HP Rev. B.O/C.0/C.1masimo corporation 40 parker irvine ca 92618 www.masimo.comR/IRDigitized,Filtered &NormalizedR/IR(ConventionalPulse Oximetry)AdaptiveFilterMEASCONFMEASCONFConfidenceBasedArbitratorPostProcessorSaturationNellcor uses a less sophisticated adaptive filter,not effective under many conditions, includingpersistent motion conditions.R/IRDigitized,Filtered &NormalizedFST TMPostProcessorSaturationPhilips uses only a single frequency domainalgorithm that is vulnerable to random andjerky motions and other patient conditions.Instruments and sensors containing Masimo SET technology are identified with theMasimo SET logo. Look for the Masimo SET designation on both thesensors and monitors to ensure accurate pulse oximetry when needed most.Masimo Corporation 40 Parker Irvine, California 92618 Tel 949-297-7000 Fax 949-297-7001 www.masimo.com7270-3213D-1006© 2006 Masimo Corporation. All rights reserved. Masimo, SET, DST, Discrete Saturation Transformation, FST, and are federally registered trademarks ofMasimo Corporation. All rights reserved.