1
John Kater, Glenn Pelikan: Contamination-free method and apparatus for measuring body fluid chemical parameters. SpaceLabs, Seed and Berry, September 8, 1992: US05145565 (240 worldwide citation)

A sample of a body fluid, such as blood, is collected in a cartridge having a sample chamber for storing the sample and one or more calibration chambers, each for storing a respective calibration fluid. The fluid sample is drawn ino the sample chamber by placing the sample chamber in fluid communica ...


2
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 (227 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 ...


3
Jonathan Tien: Enhancement of physiological signals using fractal analysis. SpaceLabs Medical, Seed and Berry, December 31, 1996: US05588427 (198 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 ...


4
Paul H Jones: Apparatus for heating tissue with a photoplethysmograph sensor. SpaceLabs, Seed and Berry, October 27, 1992: US05158082 (187 worldwide citation)

A method and apparatus for increasing the blood flow in a patient's tissue by warming the tissue with heat generated by a semiconductor device mounted in a sensor. The amount of heat generated is controlled by varying either the magnitude or the duty cycle of the current that flows through the semic ...


5
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 (184 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 ...


6
Glenn W Pelikan, Hodjat Habibi, Robert Hartwig: Alignment guide system for transmissive pulse oximetry sensors. SpaceLabs Medical, Seed and Berry, October 28, 1997: US05680857 (170 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 ...


7
Tom Marlin: Method and system for constructing formulae for processing medical data. SpaceLabs Medical, Seed and Berry, February 3, 1998: US05715451 (148 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 ...


8
Karl F Gauglitz: Application specific integrated circuit for physiological monitoring. SpaceLabs Medical, Seed and Berry, August 3, 1993: US05231990 (148 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 ...


9
Isabelle M Adams, James M Carlson, James B Rooks, Amalia Yeshaya: Method and apparatus for ECG rhythm analysis. Spacelabs, Lawrence S Levinson, Robert E Lee Jr, May 20, 1986: US04589420 (142 worldwide citation)

A method and apparatus for automatic rhythm analysis of digitized ECG signals. Candidate heartbeats are detected and the noise of the ECG signal portion containing the candidate is evaluated to determine whether the candidate is a valid nominal or noisy beat or an invalid noisy saturated signal. The ...


10
Jonathan Tien: System and method for the extractment of physiological signals. SpaceLabs Medical, Seed and Berry, September 2, 1997: US05662105 (134 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 ...