1
Minoru Niwa: Pulse oximeter with physical motion sensor. Colin Electronics, Oliff & Berridge, June 25, 1991: US05025791 (268 worldwide citation)

A reflectance pulse oximeter for detecting pulse synchronous waves is disclosed. The detector includes a sensor or sensors for detecting physical motion of the subject so that readings influenced by subject movement can be eliminated or indicated. One form of motion detector used is an accelerometer ...


2
Kenneth L Ripley, Daniel T Kaplan: Method and apparatus for ECG signal analysis and cardiac arrhythmia detection. Colin Electronics, Oliff & Berridge, December 21, 1993: US05271411 (239 worldwide citation)

A method and apparatus for arrhythmia detection comprise steps and means for acquiring at least one continuous analog signal produced by an ECG system, producing at least one digital signal based on the analog signal, producing a plurality of scalar signals from the at least one digital signal, extr ...


3
Hiroshi Sakai, Toshihiko Ogura, Satoshi Kohmura: Reflecting-type oxymeter probe. Colin Electronics, Oliff & Berridge, July 6, 1993: US05224478 (169 worldwide citation)

A probe for a reflection-type oxymeter which measures a blood oxygen saturation of a subject, the probe including a light emit device emitting at least two lights having different wavelengths toward a body portion of the subject, a light detect device detecting the lights reflected by the body porti ...


4
Hiroshi Sakai, Satoshi Kohmura: Pulse oxymeter having probe with warming means. Colin Electronics, Oliff & Berridge, July 21, 1992: US05131391 (153 worldwide citation)

A pulse oxymeter for measuring a blood oxygen saturation of a subject, including a first device for emitting toward a body portion of the subject a first light having a first wavelength and a second light having a second wavelength different from the first wavelength, a second device for detecting a ...


5
Ronald L Branstetter, Reuben W Edgar: System for correction of trends associated with pulse wave forms in oximeters. Colin Electronics, Oliff & Berridge, June 1, 1993: US05216598 (133 worldwide citation)

A noninvasive optical oximeter measures oxygen saturation of arterial blood. A patient's arterial blood is illuminated with light at two different wavelengths and the intensity of the reflected light is sensed by a photodetector and an output signal is created in response thereto. The output signal ...


6
Setsuo Takatani, Jonathan P Jaeb, Ronald L Branstetter, Hiroshi Sakai: Noninvasive reflectance oximeter sensor providing controlled minimum optical detection depth. Colin Electronics, Oliff & Berridge, April 20, 1993: US05203329 (114 worldwide citation)

A noninvasive oximeter sensor for controlling and optimizing the minimum detection depth in the tissue of a patient is disclosed. In general, a minimum detection depth of 0.35 mm in the skin is considered optimum. The reflectance oximeter sensor component configuration of the present invention achie ...


7
Jonathan P Jaeb, Ronald L Branstetter: Composite signal implementation for acquiring oximetry signals. Colin Electronics, Oliff & Berridge, March 10, 1992: US05094239 (103 worldwide citation)

An oximeter system for measuring blood oxygen saturation using a noninvasive optical technique is disclosed. A patient's arterial blood is illuminated with light at two different wavelengths and the intensity of the light which is transmitted through or reflected by said arterial blood is correlated ...


8
Bruce C Mather, Dean C Winter: Respiration rate monitor. Colin Electronics, Oliff & Berridge, September 1, 1992: US05143078 (98 worldwide citation)

A monitoring system for providing an accurate indication of a patient's respiration rate. The system is effective in eliminating or significantly reducing the effects of heart sounds and ambient noise. The system comprises means for obtaining a first signal waveform containing components correspondi ...


9
Masahiro Uemura, Hideichi Tsuda, Hifumi Yokoe, Tokuji Hayakawa: Automatic blood-pressure measuring apparatus. Colin Electronics, Oliff & Berridge, October 8, 1991: US05054495 (94 worldwide citation)

An apparatus for automatically measuring a blood pressure of a subject, including a pressing device for pressing a body portion of the subject, such as an upper arm; a first blood pressure measuring device for detecting pulse sounds which are produced from the body portion as the pressing force of t ...


10
Hiroshi Sakai, William H McGinnis, Hideo Nishibayashi: Optimum impedance system for coupling transceiver to power line carrier network. Colin Electronics, Matthews & Branscomb, November 27, 1990: US04973940 (77 worldwide citation)

A method and apparatus for efficiently coupling a transceiver to an AC power line transmission system. The preferred embodiment of the coupling system comprises a line coupling network and first and second filter ports. The first filter port is connected to a resonant circuit having bandpass filteri ...