1
Stephen C Rafert, David R Marble, Glenn W Pelikan, Alan Kahn: Conformal pulse oximetry sensor and monitor. SpaceLabs Medical, Seed and Berry, October 6, 1998: US05817008 (236 worldwide citation)

An optoelectronic pulse oximetry sensor is described which physically conforms to a body portion of a patient, such as a finger, and provides a firm pressing engagement between the sensor and the patient's body portion. The sensor includes a flexible substrate, such as an elastic bandage-type materi ...


2
Jonathan Tien: Enhancement of physiological signals using fractal analysis. SpaceLabs Medical, Seed and Berry, December 31, 1996: US05588427 (203 worldwide citation)

A technique for the derivation of a pulse oximetry signal using fractal dimension analysis of detected light signals. First and second light sources transmit light through the patient's finger or reflect light off the blood vessels in the patient's finger. A light detector detects light from each of ...


3
Jeffrey M Feldman, Mehboob H Ebrahim: System and method of multi-sensor fusion of physiological measurements. SpaceLabs Medical, Seed and Berry, May 6, 1997: US05626140 (188 worldwide citation)

A system and method for fusing independent measures of the physiological parameter uses a Kalman filter for each possible combination of sensor measurements. The Kalman filter utilize probability density functions of a nominal error contamination model and a prediction error model as well as past es ...


4
Glenn W Pelikan, Hodjat Habibi, Robert Hartwig: Alignment guide system for transmissive pulse oximetry sensors. SpaceLabs Medical, Seed and Berry, October 28, 1997: US05680857 (171 worldwide citation)

An alignment guide system for use with conventional pulse oximetry monitors connected to transmissive pulse oximetry sensors. The system generates a bar graph or other display showing the magnitude of the optical coupling between the LED's and light detector used in the sensor. By manipulating the p ...


5
Karl F Gauglitz: Application specific integrated circuit for physiological monitoring. SpaceLabs Medical, Seed and Berry, August 3, 1993: US05231990 (153 worldwide citation)

An application specific integrated circuit (ASIC) for physiological monitoring that has multiple inputs and outputs for flexible system architecture in which multiple ASICs are easily coupled together to expand the number of channels being monitored. Each ASIC has multiple inputs that may be coupled ...


6
Tom Marlin: Method and system for constructing formulae for processing medical data. SpaceLabs Medical, Seed and Berry, February 3, 1998: US05715451 (149 worldwide citation)

A method and system for constructing formulae for processing medical data is provided by a formula construction facility. In a preferred embodiment, the facility displays a list of time-indexed medical values. A user selects the name of a time-indexed medical value from the displayed list. The facil ...


7
Jonathan Tien: System and method for the extractment of physiological signals. SpaceLabs Medical, Seed and Berry, September 2, 1997: US05662105 (135 worldwide citation)

A technique for the accurate determination of artifact free pulse oximetry signals utilizes an adaptive signal processor and peak detector circuit. A reference signal for the adaptive signal processor is derived based on mathematical relations of the detected light signals and the true intensity of ...


8
Jonathan Tien, David R Marble: System and method for the algebraic derivation of physiological signals. SpaceLabs Medical, Seed and Berry, November 18, 1997: US05687722 (131 worldwide citation)

A technique for the algebraic derivation of a pulse oximetry signal uses the mathematical relations of detected light signals. First and second light sources transmit light through the patient's finger or reflects light off the blood vessels in the patient's finger. A light detector detects light fr ...


9
Donald Malinouskas, George Hojaiban: Wireless optical patient monitoring apparatus. Spacelabs Medical, Seed and Berry, February 2, 1999: US05865733 (123 worldwide citation)

A wireless patient monitoring apparatus uses an optical signal to transmit information from a transducer to a photodetector of an optical receiver. The photodetector converts the optical signal to an electrical signal which is then provided to monitoring and analysis instrumentation. Signals which a ...


10
Stephen C Rafert: System for identifying a cable transmitting a signal from a sensor to an electronic instrument. Spacelabs Medical, Dorsey & Whitney, December 24, 2002: US06497659 (117 worldwide citation)

A system is described for identifying a cable transmitting a signal from a sensor to an electronic instrument. The cable includes a reactance element such as a capacitor or an inductor. The system identifies the cable by applying a voltage to a combination of a resistance and the reactance element t ...