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8175368 |
Systems and methods for image segmentation with a multi-state classifier
The systems and methods described herein provide for fast and accurate image segmentation through the application of a multi-stage classifier to an image data set. An image processing system is...
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8077297 |
Methods and systems for discriminating bands in scalograms
The present disclosure is directed towards embodiments of systems and methods for discriminating (e.g., masking out) scale bands that are determined to be not of interest from a scalogram derived...
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7952692 |
Method and apparatus for determination of analyte concentration
A method and system are presented for use in determination of the concentration of an analyte in a subject's medium. The medium is irradiated with at least two radiation components to produce...
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7944551 |
Systems and methods for a wavelet transform viewer
Techniques for the display of a signal with a wavelet transform of that signal in a wavelet transform viewer are disclosed, according to embodiments. According to embodiments, the wavelet transform...
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7858380 |
Sol-gel encapsulated hexanuclear clusters for oxygen sensing by optical techniques
A light modifying ceramic composition comprises an oxygen permeable sol-gel matrix and a lumophore held on the matrix. In particular, the lumophore of the invention is a hexanuclear...
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7774047 |
Optical measurement instrument for living body
An optical measurement instrument for a living body to measure dynamic change of blood of a brain includes light incident units for irradiating light on a head of a subject, a light detector for...
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7710550 |
Oximeter for spectro-photometric in-vitro determination of hemoglobin derivatives
An oximeter for spectro-photometric in-vitro determination of hemoglobin derivatives in a sample, typically a hemolyzed blood sample, is provided comprising a single measurement light source...
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7561256 |
Method and apparatus for determining blood oxygen
A measuring cell for receiving a blood sample is designed such that it can be transilluminated with a light source. The light source and a means for determining the luminous intensity corresponding...
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7444005 |
Apparatus and method for using optical mouse engine to determine speed, direction, position of scanned device and to obtain quantitative or qualitative data from same
A test strip reader is provided with an optical mouse integrated circuit sensor that reads the test line, reference line and control line of a lateral flow assay strip by light absorption and...
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7346378 |
Light transmission simulator for pulse oximeter
A living tissue light transmission simulator system (208, 308) includes receptors of light (215, 216, 315, 316) in portions of the infrared and red spectral bands and the receptors (215, 216, 315,...
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7326579 |
Immunoassay method for lyzed whole blood
The present invention provides an immunoassay method in which blood can be measured even without pretreatment by means of a centrifuge etc. In the present invention, antibodies or antigens in a...
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7230688 |
System and method for processing information in a pulse oximeter
A pulse oximeter for measuring arterial oxygen saturation levels is provided. The pulse oximeter includes an LED signal generator for transmitting one or more light signals to a testing medium and...
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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...
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6985767 |
Living body information measuring apparatus, living body information measuring method, body fat measuring apparatus, body fat measuring method, and program recording medium
A body fat measuring apparatus is provided with a light emitting device 1 for projecting light rays to a subject's tissue, light receiving devices 3 and 4 for detecting a transmitted light ray...
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6980285 |
Method in quality control of a spectrophotometer
The present invention relates to a method in quality control of a spectrophotometer, comprising the steps of determining with the spectrophotomer a spectrum Am(λ) of a fluid QC sample containing a ...
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6937884 |
Method and system for imaging the dynamics of scattering medium
A method and system for imaging the dynamics of a scattering medium (116) is provided. The method and system generates contrast and resolution enhanced images of dynamic properties of a medium...
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6864716 |
Reconfigurable memory architecture
A pre-diffused high density array of core memory cells is provided in a metal programmable device. The peripheral logic is made up of gate array cells in the metal programmable device. The...
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6825619 |
Feedback-controlled LED switching
An oximeter has an op-amp with a first input, a second input, and an output, the first input being directly connected to a reference voltage. A switch has an input connected to the output of the...
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6720734 |
Oximeter with nulled op-amp current feedback
A method of producing a diode drive current in an oximeter includes sensing at least a part of a current passing through the diode and converting the sensed current to a sensed voltage, inputting...
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6657183 |
Amusement system using living body measurement by light, head setter for the amusement system, and program for use in the amusement system
Disclosed herein is an amusement system that can be used and enjoyed by different persons without using the brain continuously and with little feeling of fatigue and which permits setting a probe...
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6657717 |
Device for verifying the accuracy of a spectral analyzer
The present invention provides an artificial member (80, 210) which mimics the absorbance spectrum of a body part and includes the spectral components of blood analytes. The artificial member...
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6564077 |
Method and apparatus for pulse oximetry
An apparatus for determining the oxygenation of blood. The apparatus includes a detector that is configured to sense a first signal of a first wavelength, the first signal having a first arterial...
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6526309 |
Transcranial in vivo examination of brain tissue
An optical system and method for transcranial in vivo examination of brain tissue includes a spectrophotometer coupled to an array of optical fibers and a processor. The array of optical fibers is...
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6487439 |
Glove-mounted hybrid probe for tissue type recognition
A probe configured as a finger tip of a glove used to recognize tissue types in a human patient and adapted to perform both optical and electrical measurements to diagnose tissue type while scanned...
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6305804 |
Non-invasive measurement of blood component using retinal imaging
Illuminating light of selected wavelengths in the visible or infrared range is projected through the pupil of the eye onto the fundus, and the light reflected back and out through the pupil is...
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6226539 |
Pulse oximeter having a low power led drive
A photometer (10) includes a light source (12) operable to direct light toward a sample (14), a detection circuit (16) operable to detect the light after it has passed through the sample, and a...
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6192260 |
Methods and apparatus for examining tissue in vivo using the decay characteristics of scattered electromagnetic radiation
Methods and apparatus using the principles of time-resolved spectroscopy are disclosed. The present invention employs incident light pulses of sufficiently short duration to permit the rate of the...
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6151107 |
Method of non-invasive determination of oxygen saturation in tissue in which blood is circulating
In a method for the non-invasive determination of the oxygen saturation in tissue supplied with blood, the tissue is irradiated with red and infrared light and the DC and AC components of the...
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6144444 |
Apparatus and method to determine blood parameters
The present invention relates to an apparatus for monitoring blood parameters during cardio-pulmonary bypass surgery or during other procedures which utilize an extracorporeal circuit. The...
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6133994 |
Testing device for light emitters
A device for testing a pulse oximetry probe includes means for receiving an output signal dependent on the wavelength of light emitted by a light emitter of the probe, and for determining, from...
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6084676 |
Non-contact non-invasive measuring method and apparatus
The distance between an image indicating a measured portion and a measuring apparatus is previously registered, a measured object is arranged in a prescribed space in a non-contact state, the...
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6084661 |
Optical method and apparatus for measuring carbon monoxide in non-hemolyzed blood
Carbon Monoxide (CO) is a colorless, tasteless, and odorless gas which causes asphyxiation by combining with a strong affinity to blood hemoglobin. Unless a patient is quickly identified as having...
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6064899 |
Fiber optic oximeter connector with element indicating wavelength shift
An oximeter probe segment with a first fiber optic for carrying light to a patient, and a second fiber optic for carrying return light from the patient. The light is of a wavelength spectrum which...
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H001843 |
Optical sensor for measuring fluorescence anisotropy during polymer processing
An optical sensor containing polarizing optical components measures fluorescence anisotropy of fluorescent dyes. The measurement involves the detection of vertical and horizontal components of...
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6031603 |
Sensor, method and device for optical blood oximetry
There is described a new sensor for optical blood oximetry as well as a method and apparatus in which the new sensor is used. The new sensor includes two point-like light emitters (23,24)...
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6023541 |
Active optical oximeter probe adapter
An adapter which actively connects a 2-lead oximeter probe or monitor to a 3-lead monitor or probe. This is done actively, with the alternating drive signals from the oximeter monitor providing a...
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6005658 |
Intermittent measuring of arterial oxygen saturation of hemoglobin
Described is a method and a system for detecting the arterial oxygen saturation of hemoglobin (also called blood oxygenation, SpO2 or SaO2 measuring), comprising a measuring device for performing a...
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5995208 |
Intravascular oximetry catheter
Apparatus and a method for monitoring a percentage of the oxygen saturation in the hemoglobin of blood flowing through a blood vessel. An optical sensor that detects the percentage oxygen...
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5983122 |
Apparatus and method for improved photoplethysmographic monitoring of multiple hemoglobin species using emitters having optimized center wavelengths
An improved method and apparatus for the photoplethysmographic monitoring of blood analyte parameters, specifically oxyhemoglobin, deoxyhemoglobin (reduced hemoglobin), carboxyhemoglobin and, in...
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5935076 |
Method and apparatus for accurately measuring the transmittance of blood within a retinal vessel
The method and apparatus for measuring the transmittance of blood within a retinal vessel detects the intensity of light reflected from illuminated portions of an eye, including the retinal vessel...
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5891024 |
Two stage calibration and analyte measurement scheme for spectrophotomeric analysis
A two-stage statistical calibration and measurement method and system is disclosed for performing photoplethysmographic measurement of blood analyte concentrations. Concentrations in a tissue...
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RE36000 |
Adhesive pulse oximeter sensor with reusable portion
A pulse oximeter sensor that is designed to surround an appendage of the patient, such as a finger, toe or foot is disclosed. The sensor has a reusable member which preferably includes a...
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5830135 |
Fuzzy logic alarm system for pulse oximeters
A new alarm system for pulse oximeters, based on fuzzy logic, will differentiate false alarms, caused by artifact, from true alarms. Numeric input variables and corresponding fuzzy sets (oxygen...
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5828445 |
Method for measuring and reporting co-oximeter quality control results
The present invention comprises methods of determining the performance of an absorbance spectrometer, and, in particular, of CO-oximeters. The methods comprise measuring the absorbance spectrum of...
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5820550 |
Pulse oximeter with improved accuracy and response time
An improved pulse oximeter apparatus and method for the measurement of oxygen saturation in the blood, which is faster and more accurate than conventional pulse oximeters. Improved speed and...
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5818985 |
Optical oximeter probe adapter
The present invention provides an adapter which actively connects a two terminal oximeter probe or monitor to a three terminal monitor or probe. This is done actively, with the alternating drive...
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5803910 |
Condensed oximeter system and method with noise reduction software
A compact pulse oximetry system and method which separates the combined signal into its respective AC and DC components. By separating the signal into AC and DC components, a smaller order bit A/D...
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5786592 |
Pulse oximetry sensor with fiberoptic signal transmission
A pulse oximetry sensor has a light emitting and light detecting part containing light emitting diodes and a photo detector electrically connected to a pulse oximetry instrument, and a two-halved...
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5784151 |
Apparatus for testing a pulsed light oximeter
The invention relates to apparatus for testing a pulsed light oximeter, such as a non-invasive oximeter which emits pulses of red and infrared light. A light sensor produces an electrical pulse...
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5773301 |
Method for optically determining total hemoglobin concentration
In a method of optically determining the total hemoglobin concentration (tHb) in non-hemolyzed whole blood, using at least two wavelengths for measuring, a first wavelength of λ<805 nm and a ...
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