Nonin Medical, Inc.

Douglas R Maser

Christian Richard Trifilio

Andrew J Sanguinet

Philip O Isaacson

Timothy L Johnson

Nathan Lee Schlueter

Matthew Prior

David Lee Lemke

Patrick David Little

Jordan Clifford Welch Hartmann

A sensor assembly which includes a first physiological parameter sensor configured to sense a physiological parameter and a first reactance sensor connected to the first physiological parameter sensor. The first reactance sensor provides a signal corresponding to a position of a tissue relative to the first reactance sensor and corresponding to the first physiological parameter sensor.

Reactance sensing for improved sensor placement

Finger tip oximeter

A flexible finger sensor having a finger entrance, a sensor holder at a distal end of the assembly, and a fenestrated region disposed between the finger entrance and the sensor holder. A displacement resistant finger sensor and method of use for reducing motion-related artifacts by mechanical isolation from external forces by providing a resilient sensor body having a digit entrance, a sensor holder, and a fenestrated region between the digit entrance and the sensor holder. The sensor holder maintains sensing elements relative to a user's finger, with said sensing elements being in communication with a monitoring device via a lead wire. The lead wire may extend at a lateral edge of the sensor body. A force to the lead wire may be applied so as to distort the fenestrated region without substantially disturbing the sensing elements relative to the finger surface.

Sensor assembly

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Rogers, MN, United States of America

Douglas R Maser