Physiological monitoring device

Abstract

A physiological monitoring device may comprise a sensor chamber defined by a flexible membrane on a first side and one or more walls and an exterior chamber surrounding the sensor chamber on all sides except for the first side. The sensor chamber may be airtight except for a pressure vent. The exterior chamber may comprise one or more exterior vents and may be arranged to allow for pressure escaping through the pressure vent to equilibrate the sensor chamber when the one or more exterior vents are blocked.

Dependencies are inferred from the claim text.