The PAT ® Signal
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itamar medical a. Muscle Tone Decreases b. Airway Collapses Respiratory Cessation WatchPAT Fight or Flight Response k. Digital Arteries Constriction Heart Rate WatchPAT Home Sleep Testing Made Simple Powered by the PAT® technology Innovative Technology The Finger - Unique Physiology The PAT biosensor applies a uniform field of pressure around the fingertip • Enables optimal signal quality • Creates a precise measurement environment without any confounding influences (such as venous blood pooling) High vascular density Tremendous blood flow changes Only alpha adrenergic receptor pathways: a surrogate of sympathetic nervous system activation Convenient site for measurement Sleep Stages with the WatchPAT Simple, Accurate, Clinically Fast and Reliable Validated 90% Measures True Sleep Time Correlation to (TST) and Complete Sleep *Yalamanchali S, Farajian V, Hamilton C, Pott TR, Samuelson CG, Friedman M. Diagnosis of obstructive sleep apnea by peripheral arterial tonometry: meta-analysis. JAMA Otolaryngol