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7613489 |
Optimized wavelength gap for improved StO2 measurement
A method and system for producing improved more accurate measurements of oxyhemoglobin levels in tissue when measured using near infrared spectroscopy (NIRS). Light sources and processing methods...
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7610082 |
Optical system and method for in-vivo transcranial examination of brain tissue of a subject
An optical examination technique employs an optical system for in vivo non-invasive transcranial examination of brain tissue of a subject. The optical system includes an optical module arranged for...
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7598878 |
Method and device for measuring physiological parameters at the wrist
A wrist-mounted device for measuring at least one physiological parameter of a subject. The present invention enables such a measurement to preferably be transformed into clinically useful...
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7582060 |
Diagnosing peripheral vascular disease by monitoring oxygen saturation changes during a hyperemia phase
Peripheral vascular disease is diagnosed through measurements of oxygen saturation. In a specific implementation, peripheral vascular disease is diagnosed based on changes in oxygen saturation in...
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7570979 |
Methods and apparatus for patient monitoring
A respiratory monitoring apparatus that detects changes in physiological parameters relevant to respiration, including blood oxygen and blood volume, using near infrared spectroscopy. Methods for...
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7569017 |
Diagnosing peripheral vascular disease by monitoring oxygen saturation changes during an ischemia phase
Peripheral vascular disease is diagnosed through measurements of oxygen saturation. In a specific implementation, peripheral vascular disease is diagnosed based on changes in oxygen saturation in...
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7548771 |
Pulse oximetry sensor and technique for using the same on a distal region of a patient's digit
A sensor may be placed on a distal portion of a patient's finger or toe to obtain pulse oximetry measurements. The distal portion of a digit contains few if any large vascular structures that could...
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7536214 |
Dynamic StO2 measurements and analysis
A method of analyzing a patient's tissue oxygenation capabilities includes measuring a tissue chromophore whose light absorption properties depend on the oxygenation state of the tissue and...
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7532919 |
Measuring tissue oxygenation
Methods and systems for calculating tissue oxygenation, e.g., oxygen saturation, in a target tissue are disclosed. In some embodiments, the methods include: (a) directing incident radiation to a...
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7530949 |
Dual-mode pulse oximeter
A pulse oximeter has an integrated mode in which it operates as a plug-in module for a multiparameter patient monitoring system (MPMS). The pulse oximeter also has a portable mode in which operates...
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7526327 |
Instrument having optical device measuring a physiological quantity and means for transmitting and/or receiving data
There is disclosed a portable instrument including an optical device ( 4; 5; 6 ) for measuring a physiological quantity, particularly the heart rhythm, and data emission and/or reception means, the...
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7522949 |
Sensor with signature of data relating to sensor
A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be...
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7515949 |
Wavelet transform of a plethysmographic signal
A photoplethysmographic system and method is provided for filtering a photoplethysmographic (pleth) signal to reduce the effects of noise in the signal. The system and method utilize a combination...
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7515948 |
Photoacoustic analyzer of region of interest in a human body
A method and apparatus are presented for non-invasively monitoring at least one characteristic of a region of interest in a body. The body is illuminated by pulsed light to induce a photoacoustic...
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7509494 |
Interface cable
An interface cable is configured to connect a host instrument to a physiological sensor. The interface cable has an ID signal input from the sensor and a LED drive signal input from the host...
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7500950 |
Multipurpose sensor port
A sensor port is adapted to connect to either a sensor or a data source. A reader is configured to identify which of the sensor and the data source is connected to the sensor port. A data path is...
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7499835 |
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...
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7499740 |
Techniques for detecting heart pulses and reducing power consumption in sensors
Low power techniques for sensing cardiac pulses in a signal from a sensor are provided. A pulse detection block senses the sensor signal and determines its signal-to-noise ratio. After comparing...
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7499739 |
Single use pulse oximeter
A single use, self-contained, self-powered disposable oximeter, in the form of a patch or a bandage strip, has mounted thereto a light emitter and a light sensor that together measure at least the...
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7486388 |
Method and apparatus for standardization of a measuring instrument
A method, a portable device and a measuring instrument for standardization of a satellite measuring instrument to a corresponding master measuring instrument are disclosed. The portable device...
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7483731 |
Medical sensor and technique for using the same
A sensor may be adapted to provide output to indicate when the sensor experiences abnormal forces or pressure. The forces may be outside forces, or the forces may be generated by patient motion. A...
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7483729 |
Pulse oximeter access apparatus and method
Access is provided to certain pulse oximetry systems utilizing a keyed sensor and a corresponding locked sensor port of a restricted access monitor. In such systems, the keyed sensor has a key...
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7477924 |
Medical sensor and technique for using the same
A medical sensor may be adapted to be affixed to a patient's skin. A sensor for pulse oximetry or other spectrophotometric uses is provided with a gripping region that contacts the patient's skin...
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7474907 |
Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics
A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding...
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7471970 |
Method for measuring blood oxygen content under low perfusion
A method for measuring blood oxygen content under low perfusion, which is used in a device for measuring blood oxygen content, includes the steps of: initializing the device that is applied with...
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7471969 |
Pulse oximeter probe-off detector
A processor provides signal quality based limits to a signal strength operating region of a pulse oximeter. These limits are superimposed on the typical gain dependent signal strength limits. If a...
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7467002 |
Sine saturation transform
A transform for determining a physiological measurement is disclosed. The transform determines a basis function index from a physiological signal obtained through a physiological sensor. A basis...
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7440787 |
Systems and methods for determining blood oxygen saturation values using complex number encoding
The disclosure includes pulse oximetry systems and methods for determining point-by-point saturation values by encoding photoplethysmographs in the complex domain and processing the complex...
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7438683 |
Application identification sensor
An application identification sensor comprises a plurality of emitters configured to transmit light into a tissue site and a detector configured to receive the light after tissue absorption. The...
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7433726 |
Soc-Ox
This invention consists of a sock, a sending unit, a receiving unit, a sensor light, and a line that can be connected to a pulse-oximeter cord. A medical professional places the sock over a...
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7428432 |
Systems and methods for acquiring calibration data usable in a pulse oximeter
The present disclosure includes a pulse oximeter attachment having an accessible memory. In one embodiment, the pulse oximeter attachment stores calibration data, such as, for example, calibration...
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7424317 |
Non-invasive measurement of blood analytes
An apparatus for the measurement of at least one analyte in the blood of a patient, which includes a light source generating broadband light and a light-transmission arrangement having a plurality...
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7423526 |
Integrated patient diagnostic and identification system
A small integrated diagnostic and identification system is disclosed that solves several problems associated with current sensory systems. The diagnostic and identification system comprises a...
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7415297 |
Physiological parameter system
A physiological parameter system has one or more parameter inputs responsive to one or more physiological sensors. The physiological parameter system may also have quality indicators relating to...
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7413544 |
System and method for collecting and transmitting medical data
A system and method for collecting and transmitting medical and health-related data over a network are disclosed. A measuring device measures a user's physiological attribute and produces a first...
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7407484 |
Physiological monitoring system for a computational device of a human subject
A system for monitoring at least one physiological parameter of a human subject. The system of the present invention features a device with which the human subject regularly interacts, and which is...
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7403806 |
System for prefiltering a plethysmographic signal
A detector signal in a pulse oximeter is prefiltered, prior to processing so as to determine a physiological parameter value, so as to reduce the effects of artifact in the signal. An exemplary...
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7400918 |
Measurement of blood oxygen saturation
Oxygenation of a subject's blood is determined by sensing an absorption spectrum of light directed either invasively or non-invasively into the blood, and then calculating an oxygenation value by...
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7395159 |
Method, system and devices for converting venous blood values to arterial blood values
A methodology for converting venous blood values to arterial blood values provides the advantage of obviating the need for taking arterial blood samples. The method entails (i) measuring arterial...
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7392075 |
Method for enhancing pulse oximetry calculations in the presence of correlated artifacts
A method for determining a physiological parameter in the presence of correlated artifact, including obtaining two digital waveforms, x and y, the waveforms being representative of the absorption...
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7392074 |
Sensor system with memory and method of using same
A method of using an oximeter sensor assembly including the steps of detecting light from a light emitting element and storing digital data in a memory associated with the sensor assembly. The...
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7387608 |
Apparatus and method for the treatment of sleep related disorders
An apparatus to detect the onset of sleep apnea, and to provide an automated way to awaken the sleeping patient at the onset of sleep apnea. The apparatus may also contain a recording device or...
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7386335 |
Body activity measurement device
A body activity measurement device is provided with a light irradiation unit that irradiates near infrared light of a specified wavelength on a specified measurement site of a brain of a subject; a...
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7376454 |
Oximeter with selection between calculations based on patient type
A pulse oximeter sensor with a light source optimized for low oxygen saturation ranges and for maximizing the immunity to perturbation induced artifact. Preferably, a red and an infrared light...
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7376452 |
Apparatus and method for measuring transit time of oxygen in blood
In order to measure a transit time of oxygen in blood, at least one sensor is attached to at least one prescribed position on a subject. The sensor is adapted to detect a light absorption of...
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7376451 |
Measurement and treatment system and method
A non-intrusive physiological data measurement system and method, as well as an optically induced treatment system, are described. The measurement system includes a monitoring mechanism that...
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7374540 |
Non-invasive probe for detecting medical conditions
A non-invasive probe for application to a body part, such as a finger, toe or limb, for the detection of a medical condition of the subject includes a housing defining a compartment closed at one...
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7373194 |
Signal component processor
A signal processor generates basis functions and identifies at least one basis function component of a sensor signal in order to calculate a physiological measurement. The signal processor is...
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7373193 |
Pulse oximetry data capture system
A data capture system utilizes a sensor with emitters adapted to transmit light into a fleshy medium and a detector adapted to generate intensity signals in response to receiving light after...
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7373192 |
Oximeter red and IR zero calibration control
A pulse oximeter with drive lines for driving red and IR LEDs, and a drive circuit for driving those drive lines. A processor controls the drive circuit using a red zero output line and an IR zero...
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