1
Clark R Baker Jr, Thomas J Yorkey: Method and apparatus for estimating physiological parameters using model-based adaptive filtering. Nellcor Puritan Bennett, Townsend Townsend & Crew, December 29, 1998: US05853364 (336 worldwide citation)

A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting ...


2
Thomas J Yorkey: Method and apparatus for removing artifact and noise from pulse oximetry. Nellcor Puritan Bennett Incorporated, Townsend and Townsend and Crew, July 8, 1997: US05645060 (268 worldwide citation)

Motion compensation is based on analysis of intensity signals received by detectors, without separately measuring a motion signal, without providing feedback to cancel the motion signal and without attempting to mathematically eliminate the motion signal. Instead, the present invention mathematicall ...


3
Thomas J Yorkey, Paul D Mannheimer: Methods and apparatus for estimating a physiological parameter using transforms. Nellcor Puritan Bennett, Beyer Weaver & Thomas, July 25, 2000: US06094592 (260 worldwide citation)

A method for use in a system for determining a physiological parameter is described. The system has a sensor for transmitting electromagnetic energy of first and second wavelengths toward a tissue sample and detecting the electromagnetic energy after scattering of the electromagnetic energy by the t ...


4
Clark R Baker Jr, Richard D Moshier, Thomas J Yorkey: Method and apparatus for nuisance alarm reductions. Nellcor Puritan Bennett, Townsend and Townsend and Crew, February 2, 1999: US05865736 (256 worldwide citation)

A method and apparatus for controlling alarms in medical diagnostic apparatus where an alarm is generated when a measured value for a physiological parameter passes a threshold. The method determines both the amount of time the measured value is past the threshold, and the amount by which the thresh ...


5
Clark R Baker Jr, Thomas J Yorkey: Method and apparatus for estimating physiological parameters using model-based adaptive filtering. Nellcor Puritan Bennett Incorporated, Townsend and Townsend and Crew, July 4, 2000: US06083172 (233 worldwide citation)

A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting ...


6
Clark R Baker Jr, Thomas J Yorkey: Method and apparatus for estimating physiological parameters using model-based adaptive filtering. Nellcor Puritan Bennett Incorporated, Townsend & Townsend & Crew, June 25, 2002: US06411833 (193 worldwide citation)

A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting ...


7
Charles Porges, Clark Baker, Thomas J Yorkey, Michael Bernstein, Paul Mannheimer: Method and circuit for indicating quality and accuracy of physiological measurements. Mallinckrodt, Townsend & Townsend & Crew, January 6, 2004: US06675031 (185 worldwide citation)

Sensors and monitors for a physiological monitoring system having capability to indicate an accuracy of an estimated physiological condition. The sensor senses at least one physiological characteristic of a patient and is connectable to a monitor that estimates the physiological condition from signa ...


8
David B Swedlow, Stephen L Daleo, Thomas J Yorkey, Edward M Richards, Charles Porges, Charles Stuart, Daniel M Nemits, Russell L Delonzor: Method and circuit for storing and providing historical physiological data. Mallinckrodt, Townsend & Townsend & Crew, October 8, 2002: US06463310 (178 worldwide citation)

A mechanism for storing and providing historical physiological data, such as blood oxygen saturation data, for a patient. In particular, the historical physiological data is stored in a storage medium that “travels” with the patient and is accessible wherever the patient is moved. This is achieved b ...


9
Clark R Baker Jr, Thomas J Yorkey: Method and apparatus for estimating physiological parameters using model-based adaptive filtering. Nellcor Puritan Bennett Incorporated, Townsend & Townsend & Crew, April 13, 2004: US06721584 (177 worldwide citation)

A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting ...


10
Clark R Baker Jr, Thomas J Yorkey: Method and apparatus for estimating physiological parameters using model-based adaptive filtering. Nellcor Puritan Bennett Incorporated, Townsend and Townsend and Crew, December 28, 2004: US06836679 (164 worldwide citation)

A method and apparatus for reducing the effects of noise on a system for measuring physiological parameters, such as, for example, a pulse oximeter. The method and apparatus of the invention take into account the physical limitations on various physiological parameters being monitored when weighting ...