Donald W Heckel: Detection of sensor off conditions in a pulse oximeter. Datex Ohmeda, Marsh Fischmann & Breyfogle, January 21, 2003: US06510329 (381 worldwide citation)

A system for detecting sensor off conditions in a pulse oximeter is disclosed. In one implementation, a detector off condition is identified based a volatility of a signal quality of a filtered detector signal. The detector signal is first filtered, for example, to reduce the effects of noise or to ...

James Fitch, David L Hose, Michael McKnight: Multiple input data management for wireless location-based applications. Signal Soft Corporation, Marsh Fischmann & Breyfogle, November 20, 2001: US06321092 (366 worldwide citation)

Multiple location finding equipment (LFE) inputs are used to enhance the location information made available to wireless location-based applications. In one implementation, the invention is implemented in a wireless network including an MSC (

Warren P Heim, Michael D Olichney, James L Brassell: Electrosurgical system. Team Medical, Marsh Fischmann & Breyfogle, June 5, 2001: US06241723 (318 worldwide citation)

An electrosurgical system is disclosed that applies electrical energy to obtain a predetermined surgical effect, while also reducing eschar deposits on a working surface of an electrosurgical instrument, producing an eschar deposit which is easily removed from the working surface and/or facilitating ...

Kurt A Aronow, Jonas A Pologe: Noninvasive medical monitoring instrument using surface emitting laser devices. Datex Ohmeda, Marsh Fischmann & Breyfogle, June 26, 2001: US06253097 (307 worldwide citation)

A medical monitoring instrument such as a pulse oximeter uses vertical cavity surface emitting laser diodes (VCSELs) to produce at least two high intensity, essentially monochromatic light beams. The VCSELs are located either in: (1) the probe itself, (2) the connector to the probe, or (3) the monit ...

Alvin Mark Terry: Multi-domain motion estimation and plethysmographic recognition using fuzzy neural-nets. Datex Ohmeda, Marsh Fischmann & Breyfogle, August 16, 2005: US06931269 (216 worldwide citation)

Pulse oximetry is improved through classification of plethysmographic signals by processing the plethysmographic signals using a neural network that receives input coefficients from multiple signal domains including, for example, spectral, bispectral, cepstral and Wavelet filtered signal domains. In ...

Scott A Miller III: Electrosurgical generator. Team Medical L L C, Marsh Fischmann & Breyfogle, May 29, 2001: US06238387 (210 worldwide citation)

An electrosurgical generator is disclosed that provides radio-frequency electrical waveforms for performing surgical operations on a tissue mass. The various aspects of the present invention are embodied in an electrosurgical generator that includes a DC regulator, an amplifier, an energy recovery c ...

Matti Huiku: Compensation of human variability in pulse oximetry. Datex Ohmeda, Marsh Fischmann & Breyfogle, December 31, 2002: US06501974 (202 worldwide citation)

The invention relates to the calibration of a pulse oximeter intended for non-invasively determining the amount of at least two light absorbing substances in the blood of a subject. In order to take human variability into account, the calibration is based on an invariant which is a quotient of two p ...

Kevin Buckham, Tony Melli, James Fitch: Providing graphical location information for mobile resources using a data-enabled network. OpenWave Systems, Marsh Fischmann & Breyfogle, December 9, 2003: US06662016 (188 worldwide citation)

The inventive system relates to applications for providing graphical display information regarding mobile resources. In the illustrated embodiment, the system (

James Kelly Kindig, Thomas E Weyand: Method for the production of hydrogen-containing gaseous mixtures. Alchemix Corporation, Marsh Fischmann & Breyfogle, February 3, 2004: US06685754 (180 worldwide citation)

A method for the production of a hydrogen-containing gas composition, such as a synthesis gas including hydrogen and carbon monoxide. The molar ratio of hydrogen to carbon monoxide (H

Christopher Anthony Hicks, Mark A Norris, Matti Veli Tapani Huiku, Scott James Charles Light: Diode detection circuit. Datex Ohmeda, Marsh Fischmann & Breyfogle, December 23, 2003: US06668183 (175 worldwide citation)

A photoplethysmographic system and method is provided to identify compatible sensors to monitors and/or for determining sensor attributes. The improved system includes a signal generation means for providing an interrogation signal, an identifying means coupled between a first and second sensor term ...

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