Itamar Medical has developed a unique finger plethysmograph that is coupled to a constant volume, variable pressure pneumatic system to measure the PAT Signal. The fingertip is known to be an ideal site for measuring the scope of peripheral vascular responsiveness because of its high density of alpha adrenergic innervation. PAT identifies the on or off state of this single receptor. Plethysmograph devices have been used to detect a number of important medical markers, and the technology for them has been around for over 100 years. Itamar Medical's technology specifically addresses and prevents certain major problems that were inherent to the classical uses of plethysmography.
Physiological noise is neutralized to isolate a single signal - the amplitude of the pulse wave.
Itamar Medical's novel multi-cell pneumatic and pneumoptic probes apply a uniform pressure field that envelops the fingertip and extends the effective boundary of the pressure field beyond the measuring site at the fingertip. The potential applications for the PAT Signal and PAT technology-based applications are manifold. See the list of clinical trial sites for more information. PAT and e-Healthcare 1. PAT technology can be applied in both traditional clinical settings and emerging e-healthcare settings.