Nonin Medical, Inc.

Aaron Alfred Lobbestael

Franz Willems Ulrich

Gregory J Rausch

Nicholas J Kanavati

A device includes a housing, an emitter, a detector, and a processor. The housing has a body contact surface. The emitter is coupled to the housing and has an emission surface and has an electrical terminal. The emission surface is configured to emit light proximate the body contact surface in response to a signal applied to the electrical terminal. The detector is coupled to the housing. The detector has a sense surface and an output terminal. The detector is configured to provide an output signal on the output terminal in response to light detected at the sensor surface. The processor is configured to implement an algorithm to determine a tissue site based on the emitted light and based on the detected light.

Tissue site detection

A system () includes a sensor (A/B/C), a processor (), and an output module (). The sensor can have at least one light emitter (A) and at least one light detector (A/B). The processor can be coupled to the sensor and have instructions configured to determine a calibration value using light attenuation corresponding to a light path through a tissue associated with a light emitter and a light detector of the sensor. The processor can be configured to calculate oxygen saturation in the tissue using a signal provided by the sensor. The output module can be coupled to the processor and configured to render a compensated oxygen saturation. The compensated oxygen saturation can be determined using the calibration value and the calculated oxygen saturation.

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Watertown, MN, United States of America

Aaron Alfred Lobbestael