|
Match
|
Document |
Document Title |
|
|
7627365 |
Detection, imaging and characterization of breast tumors
An optical examination technique employs an optical system for in vivo non-invasive examination of breast tissue of a subject. The optical system includes an optical module, a controller and a...
|
|
|
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...
|
|
|
7426407 |
Continuous spectroscopic measurement of total hemoglobin
Methods for measuring the total hemoglobin of whole blood include measuring reflective light at multiple wavelengths within the visible spectrum, calculating light absorbance at each of the...
|
|
|
7251518 |
Blood optode
A method for measuring in non-invasive manner the concentration of blood constituents by which backscattered light is measured under the action of ultrasonic radiation focused towards the inside of...
|
|
|
7248909 |
Method and apparatus for dynamically monitoring multiple in vivo tissue chromophores
A device and method utilizes a broadband diffuse optical spectroscopy (DOS) system to dynamically calculate the concentrations of multiple chromophores in vivo using a non-invasive probe. The...
|
|
|
7242997 |
Diffuse optical tomography system and method of use
An improved diffuse optical tomography system for in vivo non-contact imaging includes an illumination source for illuminating a specimen, a spectrum source for projecting a spectrum onto the...
|
|
|
7239903 |
Brain function measurement device, brain function measurement method, and brain function measurement program
In addition to irradiating examination light toward the inside of the bead of the subject and detecting the examination light reflected from the head: structural data indicating the head structure,...
|
|
|
7142906 |
Optical measurement instrument for living body
A control device and measurement system for a living body applies lights of at least one wavelength in a visible-infrared region to a plurality of incident positions on a surface of the living...
|
|
|
7139597 |
Living body light measuring device
There has been no device for measuring changes in Hb concentrations associated with activities of the cerebral function of an infant or subject prone to movement during measurement. Removing and...
|
|
|
6990365 |
Apparatus for measurement of blood analytes
There is described a device for the non-invasive measurement of one or more analytes in blood in a patient's body part which comprises a light transmitter comprising a plurality of transmitting...
|
|
|
6949384 |
Method for monitoring degradation of Hb-based blood substitutes
The present invention provides a method for monitoring degradation of Hb-based blood substitutes, in a sample. This method involves determining a concentration of met-Hb within the sample, by...
|
|
|
6882874 |
Compensation of human variability in pulse oximetry
The invention relates to the calibration of a pulse oximeter intended for non-invasively determining the amount of at least two light-absorbing substances in the blood of a subject. In order to...
|
|
|
6859658 |
Device for non-invasively detecting the oxygen metabolism in tissues
The invention relates to an apparatus for noninvasive determination of the oxygen turnover and data derived therefrom with an optical sensor (S) to be placed on the tissue with one or more light...
|
|
|
6701171 |
Method and apparatus for non-invasive detection of angiogenic and anti-angiogenic activity in living tissue
The present invention relates to a method for non-invasive local quantification of angiogenesis or destruction of existing blood vessels in living tissue, the use of the said method for local...
|
|
|
6701169 |
Method of determining autoregulatory and perfusion status
A method of determining the autoregulatory status of a subject by obtaining a measurement of a selected parameter of the retinal blood vessels in a non-stimulated subject, administering to the...
|
|
|
6615064 |
Non-invasive blood component analyzer
|
|
|
6611320 |
Method and apparatus
The present invention relates to a method for detecting blood characteristics including hemoglobin in a fluid medium using both transmission and reflection of a light beam which forms a quotient.
|
|
|
6597931 |
System and method for absolute oxygen saturation
The present invention generally relates to an apparatus and method for obtaining absolute values of concentrations of chromophores of a medium and/or absolute values of their ratios. More...
|
|
|
6594513 |
Method and apparatus for determining oxygen saturation of blood in body organs
A spectrophotometric method and apparatus for determining the degree of oxygen saturation of the hemoglobin in the blood within a body part utilizes differences in light absorption based on...
|
|
|
6587703 |
System and method for measuring absolute oxygen saturation
The present invention generally relates to apparatus and methods for obtaining absolute values of concentrations of chromophores of a medium and/or absolute values of their ratios. In particular,...
|
|
|
6519485 |
Minimally invasive system for assessment of organ function
A system for assessing organ function couples light emitters into an optical fiber delivery assembly of which the tip extends to or into an internal organ and illuminates tissue; the device senses...
|
|
|
6473632 |
Total hemoglobin concentration measurement
A method for operating a spectrophotometric instrument of the type for measuring the oxygenation state of hemoglobin in tissue. The method includes the use of stored hemoglobin concentration...
|
|
|
6438399 |
Multi-wavelength frequency domain near-infrared cerebral oximeter
The present invention provides a frequency domain near infrared oximeter (fdNIRS) instrument and associated method of determining the oxygenation level of tissue. The tissue is irradiated by a near...
|
|
|
6430513 |
Monitoring constituents of an animal organ using statistical correlation
Constituents such as oxy- and deoxy-hemoglobin are monitored non-invasively in an animal organ such as a brain with a spectrometric instrument by passing radiation through the organ. Concentrations...
|
|
|
6411832 |
Method of improving reproducibility of non-invasive measurements
A method of improving the accuracy and reproducibility of non-invasive measurements of a concentration of a constituent of interest carried in a body part has been developed. The method relies on...
|
|
|
6397099 |
Non-invasive imaging of biological tissue
An optical system for in vivo, non-invasive imaging of tissue change includes an optical module with an array of input ports and detection ports located in a selected geometrical pattern to provide...
|
|
|
6393310 |
Methods and systems for clinical analyte determination by visible and infrared spectroscopy
Noninvasive, in-vivo, methods and system for determining a person's relative individual percentages of a plurality of hemoglobin species and for determining a person's total hemoglobin...
|
|
|
6259936 |
Apparatus for imaging blood flow in the microcirculation
Blood perfusion in tissue is imaged using a beam from a monochromatic laser light source that is scanned over the tissue surface in a predetermined pattern at a substantially constant speed. Light...
|
|
|
6104938 |
Procedure, apparatus and detector for the determination of fractional oxygen saturation
The invention relates to a procedure for determining the relative concentration or composition of different kinds of haemoglobin, such as oxyhaemoglobin, deoxyhaemoglobin and dyshaemoglobins,...
|
|
|
6043043 |
Method for the determination of hemoglobin adducts
Disclosed is an improvement to the method of determining the concentration of a hemoglobin adduct in a blood sample by the steps of assaying the blood sample for the total amount of hemoglobin,...
|
|
|
5853370 |
Optical system and method for non-invasive imaging of biological tissue
An optical system for in vivo, non-invasive imaging of tissue change including an optical module, a spectrophotometer, and a processor. The optical module includes an array of input ports and...
|
|
|
5843150 |
System and method for providing electrical and/or fluid treatment within a patient's brain
A system and method for providing electrical and/or fluid treatment within a patient's brain, the system and method utilizing a feedthrough assembly made of a compressible material, and a disk-like...
|
|
|
5800349 |
Offset pulse oximeter sensor
In accordance with the present invention, a transmittance pulse oximeter sensor having an emitter that is offset from the detector. Offsetting the emitter and detector allows more light to pass...
|
|
|
5779631 |
Spectrophotometer for measuring the metabolic condition of a subject
One preferred embodiment utilizes differential measurement of radiation that migrated in two migration paths between two source (100) detector (110) pairs placed on the head in a manner that each...
|
|
|
5458128 |
Method and apparatus for noninvasively measuring concentration of a dye in arterial blood
The method of noninvasively measuring concentration of a dye in a circulatory system includes measuring an optical density of an arterial blood-dye mixture in an artery as a function of time at a...
|
|
|
5413100 |
Non-invasive method for the in vivo determination of the oxygen saturation rate of arterial blood, and device for carrying out the method
The apparatus comprises three laser diodes emitting at 660, 750 and 940 nm respectively, excited cyclically at the rate of a timer. The light emitted is channelled by three optical fibers to...
|
|
|
5377674 |
Method for non-invasive and in-vitro hemoglobin concentration measurement
A non-invasive and an in-vitro method for determining a person's hemoglobin concentration are described. The methods employ substantially simultaneous measurements of absorbance of near-infrared...
|
|
|
5335659 |
Nasal septum probe for photoplethysmographic measurements
The nasal septum probe of the present invention mounts the optical devices of a photoplethysmographic probe in a housing that clips onto the patient's nasal septum. The septum provides an arterial...
|
|
|
5329922 |
Oximetric esophageal probe
An esophageal probe comprising an elongated tubular body member with a distal portion that is insertible into an esophagus and a pair of oximeter sensors mounted in a spaced apart relation on the...
|
|
|
5231464 |
Highly directional optical system and optical sectional image forming apparatus employing the same
A light propagation region is divided into a plurality of subregions, each subregion being limited within a minimum spatial resolution unit where an interference occurs between discrete points, and...
|
|
|
5219400 |
Noninvasive method for quantitation of oxyhemoglobin saturation by near-infrared reflectance spectrophotometry
The degree of hemoglobin oxygenation in the blood vessels of the retina is etermined under conditions of dark-adaptation and light-adaptation by directing a beam of near-infrared light having a...
|
|
|
5198977 |
System and method for localization of functional activity in the human brain
System and method for the localization of functional activity in the human brain during neurosurgery. The system includes an electronic flash illuminator for illuminating the surface of the exposed...
|
|
|
5167230 |
User-wearable hemoglobinometer for measuring the metabolic condition of a subject
A system for non-invasively determining the oxygenation state of tissue located beneath the surface of the skin, such as muscle tissue, of an exercising person or other subject is disclosed. In a...
|
|
|
5122974 |
Phase modulated spectrophotometry
The present invention to provides methods and apparatus for studying photon migration using signal modulation techniques such as time, frequency and phase modulation. The photon migration data may...
|
|
|
5119814 |
Method and apparatus for monitoring blood loss via retinal venous oxygen saturation
A non-invasive retinal scanning system which monitors internal blood loss. A portion of the ocular fundus is illuminated, in an annular fashion, with two wavelengths of light, one of which serves...
|
|
|
5058587 |
Probe for optical sensor
An optical sensor probe for emitting light into blood and detecting light reflected by the blood, having one end of a first light transmitting member brought into contact with blood flowing through...
|
|
|
4925299 |
Hemoglobin detector
A photoelectric arrangement for the determination of a substance spectrally differently absorbing light in a specimen (1) comprising two alternately switched on light sources (2,3) of different...
|
|
|
4889116 |
Adaptive control of neonatal fractional inspired oxygen
An adaptive controller for delivering fractional inspired oxygen to a patient. The controller utilizes a pulse oximeter connected by an optical sensor to the patient for measuring the patient's...
|
|
|
4880304 |
Optical sensor for pulse oximeter
An improved optical sensor which has increased sensitivity and which is resistant to the effects of ambient light. In one embodiment of the invention, the sensor housing has a flat lower face with...
|
|
|
4867165 |
Method for determining the perfusion
A method is proposed for determining the perfusion by evaluation of the light emitted by at least one light source and influenced by the arterial blood, by use of optical measuring means which...
|