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| Number | Title | Issue Date |
| 7457652 | Method and circuit for indicating quality and accuracy of physiological measurements 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 ... | 11/25/2008 |
| 7313426 | Apparatus for determining concentrations of light absorbing substances in blood In an apparatus for determining a concentration of a light absorbing substance in blood, a plurality of photo emitters are adapted to emit light beams having different wavelengths toward a living tissue including a blood vessel. A photo receiver is adapted to receiv... | 12/25/2007 |
| 7266400 | Glucose level control method and system A method and device are provided for self-monitoring a patient's blood glucose condition to determine a long-term effect of the patient's behavior on his blood glucose level. A sequence of measurements of the blood glucose level is applied during a day, the sequenti... | 09/04/2007 |
| 7257433 | Apparatus for measuring concentration of light-absorbing substance in blood An apparatus for measuring a concentration of a light-absorbing substance in blood is disclosed. A light emitter emits light beams to irradiate a living tissue, each of the light beams being associated with one wavelength which is absorbed by the blood. A first inst... | 08/14/2007 |
| 7254425 | Method for detecting artifacts in data A method for identifying artifacts occurring during a measurement of the concentration of an analyte in a biological sample by means of an apparatus that employs temperature-controlled optical probes, introduces electromagnetic radiation into tissue, and collects an... | 08/07/2007 |
| 7225021 | Differentiation of central sleep apnea and obstructive sleep apnea using an implantable cardiac device An implantable cardiac device is programmed to differentiate between central sleep apnea and obstructive sleep apnea. The implantable cardiac device utilizes a respiration-related parameter (e.g., respiration rate, tidal volume, and minute ventilation) to determine ... | 05/29/2007 |
| 7215986 | Signal processing apparatus The present invention involves a method and an apparatus for analyzing measured signals, including the determination of a measurement of correlation in the measured signals during a calculation of a physiological parameter of a monitored patient. Use of this inventi... | 05/08/2007 |
| 7215984 | Signal processing apparatus The present invention involves method and apparatus for analyzing measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one embodi... | 05/08/2007 |
| 7194292 | Simultaneous signal attenuation measurements utilizing frequency orthogonal random codes A method for use in operating a signal attenuation measurement device used to obtain a physiological parameter of a patient and an apparatus for use in determining at least one physiological parameter relating to a patient from at least first and second signals tran... | 03/20/2007 |
| 7184809 | Pulse amplitude indexing method and apparatus The invention is method and apparatus for determining a physiological characteristic by detecting the intensity of light following tissue absorption at two wavelengths, estimating the pulse amplitude and indexing a calculated physiological characteristic to the esti... | 02/27/2007 |
| 7169110 | Apparatus and method for diagnosing sleep apnea An apparatus for diagnosing sleep apnea, which detects a temporary cessation of breathing during sleep by applying light to a part of a subject's body and processing light output therefrom, includes a light source unit for sequentially generating light of at least t... | 01/30/2007 |
| 7171251 | Physiological stress detector device and system A method, system and device for measurement of a blood constituent level, including a light source, a light detector proximate an organ surface, adjustable gain amplifiers, and a processor/controller connected within a processing unit operative to separate AC and DC... | 01/30/2007 |
| 7164938 | Optical noninvasive vital sign monitor An optical noninvasive vital sign monitor comprising a reflectance-type optical sensor within a pressurizable capsule retained by a headband, the capsule having an optically transparent or translucent inner wall adapted for placement against a subject's forehead. Th... | 01/16/2007 |
| 7163511 | Devices and methods for frequent measurement of an analyte present in a biological system Devices and methods are provided for frequently measuring the concentration of an analyte present in a biological system. A monitoring system having at least two components is employed in order to allow separation of data collection from data processing and display.... | 01/16/2007 |
| 7159476 | Measuring device and method for reducing measuring errors The invention relates to a device for determining the non precise placement of measuring sites on measuring sensors and for reducing measuring errors, which result from the movement between the measuring sites and the measuring sensors when measuring the most divers... | 01/09/2007 |
| 7133711 | Method and system for decomposition of multiple channel signals A method and a system for decomposition of a multiple channel signal reflecting characteristics of a blood perfused fleshy medium is provided. This technique can be utilized for determination of at least one desired blood parameter. According to the method a portion... | 11/07/2006 |
| 7130671 | Pulse oximeter sensor off detector In a system for measuring a physiological parameter using at least one wavelength of electromagnetic energy transmitted through living tissue, a method for determining an operational status of the system. The method includes receiving a data signal from at least one... | 10/31/2006 |
| 7110570 | Application of human facial features recognition to automobile security and convenience An imaging system (50) for providing vehicle security and convenience features that employs face recognition software to identify and track a person. The system (50) employs infrared emitters (30) that emit an infrared signal along a predetermin... | 09/19/2006 |
| RE39268 | Simulation for pulse oximeter A method and system for simulating living tissue which is to be monitored by a pulse oximeter that provides red and infrared light flashes, the system including structure for: converting the red and infrared light flashes of the pulse oximeter into electrical signal... | 09/05/2006 |
| 7095491 | Device and method for measuring constituents in blood The method and device serve to measure a proportion of constituents in blood. To this end, electromagnetic radiation of different radiation wavelengths is directed through a tissue (9) containing blood vessels (1). At least a portion of the radiation e... | 08/22/2006 |
| 7077809 | System for measuring and analyzing vasodilatation index In a vasodilatation index measuring and analyzing system, a measuring unit includes a measuring device for measuring standard and comparative pulses of a digit of a subject in relaxed and comparative states, respectively. An external pressure is applied to a limb pa... | 07/18/2006 |
| 7062307 | Oversampling pulse oximeter An oversampling pulse oximeter includes an analog to digital converter with a sampling rate sufficient to take multiple samples per source cycle. In one embodiment, a pulse oximeter (100) includes two or more light sources (102) driven by light source ... | 06/13/2006 |
| 7047054 | Laser diode optical transducer assembly for non-invasive spectrophotometric blood oxygenation monitoring A non-invasive near infrared spectrophotometric monitoring transducer assembly includes a housing member, which is adhered directly on a patient's skin. The housing member contains a prism coupled to a flexible and lightweight single core optical light guide, which ... | 05/16/2006 |
| 7039538 | Pulse oximeter with separate ensemble averaging for oxygen saturation and heart rate The use of two separate ensemble averagers for processing a detected waveform for use in calculating oxygen saturation and a pulse rate. The ensemble averager used for calculating oxygen saturation operates on a signal which has been normalized, while the ensemble a... | 05/02/2006 |
| 7035679 | Wavelet-based analysis of pulse oximetry signals A pulse oximetry signal, suitably a photoplethysmogram (PPG), is decomposed by wavelet transform techniques, and the decomposed signal analysed to provide selected physiological data. The signal may be processed to remove noise, artefacts, or transient features. Inf... | 04/25/2006 |
| 7027850 | Signal processing method and device for signal-to-noise improvement A method and apparatus extract a signal component of a measured signal using one of two methods. If the signal component in the measured signal is a periodic signal with a certain well-defined peak-to-peak intensity value, upper and lower envelopes of the measured s... | 04/11/2006 |
| 7006856 | Signal quality metrics design for qualifying data for a physiological monitor A method and a device for determining the quality of signal used for measuring a physiological parameter. One embodiment of the present invention is directed towards a pulse oximeter, where the measured physiological parameter includes a patient's pulse rate and blo... | 02/28/2006 |
| 6997879 | Methods and devices for reduction of motion-induced noise in optical vascular plethysmography Methods and devices are provided for reducing motion artifacts when monitoring volume changes in blood vessels. Light having a first wavelength and light having a second wavelength are transmitted through a human appendage, toward the epidermis of a patient, or thro... | 02/14/2006 |
| 6999904 | Variable indication estimator A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. I... | 02/14/2006 |
| 6954664 | Oximetry simulator A simulator adapter is provided to be used with a conventional oximeter for monitoring a patient who may be remotely located from the oximeter. In a first embodiment of the invention, the simulator adapter has a simulator digit that fits to the sensor of the oximete... | 10/11/2005 |
| 6922577 | Optical measuring device having d.c. component elimination An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected l... | 07/26/2005 |
| 6912413 | Pulse oximeter The invention relates to pulsed oximeters used to measure blood oxygenation. The current trend towards mobile oximeters has brought the problem of how to minimize power consumption without compromising on the performance of the device. To tackle this problem, the pr... | 06/28/2005 |
| 6898452 | Stereo pulse oximeter An improved pulse oximeter provides for simultaneous, noninvasive oxygen status and photoplethysmograph measurements at both single and multiple sites. In particular, this multiple-site, multiple-parameter pulse oximeter, or “stereo pulse oximeter” simultaneousl... | 05/24/2005 |
| 6839580 | Adaptive calibration for pulse oximetry A method for calibrating a pulse oximeter device and an apparatus incorporating the method and a system for utilizing the method. The method is based on modeling light propagation in tissue at two wavelengths, typically, one in the red and one in the infrared range ... | 01/04/2005 |
| 6801799 | Pulse oximeter and method of operation A sensor for use in an optical measurement device and a method for non-invasive measurement of a blood parameter. The sensor includes sensor housing, a source of radiation coupled to the housing, and a detector assembly coupled to the housing. The source of radiatio... | 10/05/2004 |
| 6760609 | Adaptive calibration pulsed oximetry method and device A method for determining an arterial blood oxygen saturation level according to this invention includes measuring the light transmittance through tissue of light of a first wavelength and a second wavelength. A steady-state component of the measured light transmissi... | 07/06/2004 |
| 6745060 | Signal processing apparatus The present invention involves method and apparatus for analyzing two measured signals that are modeled as containing primary and secondary portions. Coefficients relate the two signals according to a model defined in accordance with the present invention. In one em... | 06/01/2004 |
| 6681128 | System for noninvasive hematocrit monitoring A system determines heamtocrit transcutaneously and noninvasively. Disclosed are a finger clip assembly and an earlobe clip assembly, each including at least a pair of emitters and a photodiode in appropriate alignment to enable operation in either a tran... | 01/20/2004 |
| 6675031 | Method and circuit for indicating quality and accuracy of physiological measurements 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 est... | 01/06/2004 |
| 6658277 | Signal processing method and device for signal-to-noise improvement A method and apparatus extract a signal component of a measured signal using one of two methods. If the signal component in the measured signal is a periodic signal with a certain well-defined peak-to-peak intensity value, upper and lower envelopes of the... | 12/02/2003 |
