Motion compatible sensor for non-invasive optical blood analysis

   
   

A non-invasive optical sensor which uses the motion signal to calculate the physiological characteristic being measured. For pulse oximetry, a least squares or a ratio-of-ratios technique can be applied to the motion signal itself. This is made possible by selecting a site on the patient where variations in motion produce signals of two wavelengths which are sufficiently correlated. In particular, it has been determined that a sensor placed on a nail, in particular a thumbnail, exhibits the characteristics of having the red and infrared signals correlated when used for pulse oximetry, and the resulting signals correlate to arterial oxygen saturation.

Um sensor ótico non-invasive que use o sinal do movimento calcular o característico physiological que está sendo medido. Para o pulso oximetry, menos quadrados ou uma técnica das relação-$$$-RELAÇÕES podem ser aplicados ao sinal próprio do movimento. Isto é feito possível selecionando um local nas variações do paciente onde no movimento produzir sinais de dois wavelengths que são correlacionados suficientemente. No detalhe, determinou-se que um sensor colocado em um prego, no detalhe um thumbnail, exibe as características de ter os sinais vermelhos e infravermelhos correlacionados quando usado para o pulso oximetry, e os sinais resultantes correlacionam ao saturation arterial do oxigênio.

 
Web www.patentalert.com

< MurC

< Polymer compositions containing bioactive agents and methods for their use

> PHARMACOLOGICAL AGENTS AND METHODS OF TREATMENT THAT INACTIVATE PATHOGENIC PROKARYOTIC AND EUKARYOTIC CELLS AND VIRUSES BY ATTACKING HIGHLY CONSERVED DOMAINS IN STRUCTURAL METALLOPROTEIN AND METALLOENZYME TARGETS

> Treatment of shoulder dysfunction using a percutaneous intramuscular stimulation system

~ 00156