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7611470 |
Measurement of cardiac output and blood volume by non-invasive detection of indicator dilution
A system for evaluating the cardiovascular system parameters using indicator dilution and non-invasive or minimally invasive detection methods is disclosed. Intravascular indicators are stimulated,...
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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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7565192 |
Biological optical measurement system
A typical task assigned for measuring a brain activity signal lasts from 10 to 30 seconds. The frequency band of the Mayer wave noise signal is very close to the frequency bands of brain activity...
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7547284 |
Bilateral differential pulse method for measuring brain activity
A method of measuring human brain activity includes the steps of simultaneously measuring pulses at two locations on a human subject that each receives blood from a different carotid artery that...
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7486985 |
Near-infrared spectroscopic analysis of blood vessel walls
The invention relates to methods and devices for characterizing tissue in vivo, e.g., in walls of blood vessels, to determine whether the tissue is healthy or diseased.
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7329223 |
Catheter with optical fiber sensor
An apparatus and method to perform therapeutic treatment and diagnosis of a patient's vasculature through the use of an intravascular device having an optical fiber disposed therein. In an...
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7295692 |
Process and apparatus for detection of the cardiac cycle
A process for cardiac movements to be used with a radiography apparatus ( 1 ) wherein acquiring of a series of successive images I n of the region of the heart, an analysis of at least some of the...
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7231243 |
Optical methods for tissue analysis
The invention relates to methods and systems to optically analyze samples such as tissue based on speckle patterns of microscopic motion, such as Brownian motion.
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7144367 |
Anatomical visualization system
A realtime computer-based viewing system comprising a database of first software objects in registration with one another, wherein at least one of the first software objects corresponds to a...
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7115841 |
Imaging methods for fluorescence and reflectance imaging and spectroscopy and for contemporaneous measurements of electromagnetic radiation with multiple measuring devices
Optical systems that provide for simultaneous images and spectra from an object, such as a tissue sample, an industrial object such as a computer chip, or any other object that can be viewed with...
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7096058 |
Laser blood-flow meter and system for monitoring bio-data
A laser blood-flow meter includes a laser-beam irradiator for irradiating laser beams to biological structure, a detector for detecting scattered beams resulted from scattering of the laser beams...
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7022083 |
Measurement system for living bodies
A satisfactory averaged signal can be obtained with only a small number of repetitions of measurement in the measurement of responses to a stimulus given to a living body. A low-frequency...
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7020511 |
Method for three dimensional cine EBA/CTA imaging
Certain embodiments of the present invention provide a method for three-dimensional cine EBA/CTA imaging. The method includes monitoring a cardiac cycle of a patient and selecting a trigger point...
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7018338 |
Method and device for pulse rate detection
Portable pulse rate detecting device for contact with human body tissue, including a light-emitting source for emitting radiant energy directed at through human body tissue; at least first and...
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6999812 |
Arteriosclerosis detection system
An arteriosclerosis detection system including an electrocardiographic signal detection device, an eyeground image detection device for detecting an eyeground image in synchronization with an...
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6970736 |
Analysis system of matter adhered to inside wall of vessel
An analysis system comprises an endoscope 10 insertable into the vessel and a Raman analysis apparatus 40. An insert cable 54 of the Raman analysis apparatus 40 is inserted into a channel 10 a of...
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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...
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6856829 |
Method for detecting physiological condition of sleeping patient based on analysis of pulse waves
A physiological condition detecting method detects pulse waves from the body of a patient, and creates the envelope of the pulse waves by connecting every peak of the pulse waves. It determines...
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6842639 |
Method and apparatus for determining neovascular flow through tissue in a vessel
Methods and apparatus for guiding a guide wire through a blood vessel are described. An exemplary embodiment includes a guide wire coupled to an interferometric guidance system. The interferometric...
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6840933 |
Method and apparatus for treating neovascularization
A method for detecting and treating diseases of a type associated with the growth of new blood vessels (neovascularization) in choroidal or subretinal layers of the eye and which can be used for...
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6816743 |
Methods and apparatus for in vivo identification and characterization of vulnerable atherosclerotic plaques
Methods and apparatus for analyzing the chemical composition of vulnerable plaques with an intravascular catheter having a near-infrared light source, a fiber-optic probe, a mechanism for directing...
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6811306 |
Infrared ear thermometer
An infrared ear thermometer includes a detector head housing, a heat sink, a recess formed in the heat sink, a thermopile sensor mounted within the recess, a thermistor, and temperature...
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6783501 |
Heart rate monitor and heart rate measuring method
Accurate occurrences of pulsation per unit time, that is, a heart rate is measured with a burden on a subject person being reduced to be very small and without being susceptible to body vibrations...
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6780158 |
Signal processing method and pulse wave signal processing method
A first signal and a second signal are provided as two continuous signals having an identical fundamental frequency. A first spectrum which is either one of a frequency spectrum or a frequency...
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6704590 |
Doppler guiding catheter using sensed blood turbulence levels
A guiding catheter includes a Doppler sensor disposed at a distal end of a flexible shaft. The Doppler sensor can sense a blood flow turbulence level within a chamber of the heart or a blood vessel...
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6702752 |
Monitoring respiration based on plethysmographic heart rate signal
A pleth signal is analyzed to identify a heart rate variability parameter associated with respiration rate. In one embodiment, an associated process involves obtaining a photoplethysmograpic...
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6702736 |
Anatomical visualization system
A real-time computer-based viewing system is disclosed comprising a database of pre-existing software objects, wherein at least one of the software objects corresponds to a physical structure which...
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6699198 |
Ocular-blood-flow meter
An ocular blood-flow meter includes an optical system for applying measuring light to a blood vessel of a subject eye, and for receiving light scattered by the blood vessel of the subject eye. A...
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6697667 |
Apparatus and method for locating coronary sinus
An intravascular device for locating a coronary sinus of a patient's heart and method of using the same. In one embodiment, the intravascular device includes an elongated member having at least one...
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6685650 |
Fundus blood flowmeter
When a blood flow velocity in a blood vessel on the fundus is to be measured, a cofocal aperture is inserted to eliminate the influence of scattered light from regions other than a measurement...
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6650923 |
Method for accessing the left atrium of the heart by locating the fossa ovalis
Disclosed is an access catheter for identifying and providing access through a tissue structure such as the fossa ovalis on the intraatrial septum. The access catheter comprises an elongate...
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6640129 |
Determination of liver function using the rate at which plasma disappears
A method and a device for determining liver function are described. Liver function is determined after injection of an indicator dye into the bloodstream, optical measurement of the resulting...
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6572636 |
Pulse sensing patch and associated methods
A pulse sensing patch and methods of forming and using the same are provided. The patch preferably includes a main body having an upper surface, a lower adhesive surface and an opening positioned...
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6542764 |
Pulse oximeter monitor for expressing the urgency of the patient's condition
A monitor for a pulse oximeter emits audible sounds containing information regarding the patient's pulse rate and oxygen saturation level wherein the information is not contained in variations of...
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6540688 |
Method and system for assessing collateral blood flow to a tissue region of interest
The present invention is directed to a method and system for use in assessing collateral blood flow to a tissue region of interest (ROI). The method includes the steps of obtaining a first...
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6529770 |
Method and apparatus for imaging cardiovascular surfaces through blood
A technique for imaging cardiovascular surfaces through blood using a combination of spectral and spatial selection of radiation being reflected diffused back and by a blood vessel interior....
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6511434 |
Blood-pressure transducer assembly
A unitary blood-pressure transducer assembly for inclusion in a system adapted to monitor the blood pressure of a patient while the patient is being supplied through a supply line leading to a...
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6463309 |
Apparatus and method for locating vessels in a living body
A method and apparatus for facilitating the locating of vessels in a living body, the apparatus having an enclosure for surrounding a portion of the living body, a light source positioned to...
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6438403 |
Method and apparatus for cardiac analysis using four-dimensional connectivity
An imaging system enables cardiac functioning within a particular cardiac chamber to be imaged. The system acquires imaging data that includes intensity values for four-dimensional voxels within a...
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6411839 |
Fundus blood vessel examination apparatus
A blood vessel examination apparatus includes a presentation device for presenting a fixation reference mark to the eye to be examined, an irradiation device for irradiating a blood vessel on the...
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6347242 |
Apparatus for measuring occular choroidal blood flow
A non-invasive method and apparatus for measuring ocular blood flow. Infrared light is directed to the eye fundus by special contact lens. The amount of light energy reflected in detected and...
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6339716 |
Method for determining viability of a myocardial segment
A method of determining the viability of a hibernating or stunned myocardial segment comprises the administration of ribose, a vasodilator and an inotropic agent. The preferred agent is dobutamine,...
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6339714 |
Apparatus and method for measuring concentrations of a dye in a living organism
An apparatus and method for measuring indicator concentration time curves optically from a living organism using a single wavelength, by comparing the optical density before and after injection of...
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6336044 |
Reliable body fat measurement in self-service health parameter Measuring system
In a self-service health parameter measuring apparatus and method, a person's elbow is placed at a spatial reference point, and means surrounding a user's forearm locate an infrared body fat...
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6324420 |
Blood vessel tracking apparatus
A blood vessel tracking apparatus includes a light source for emitting light and illuminating a blood-vessel with the light. The apparatus also includes a light-receiving sensor for receiving a...
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6302850 |
Fundus blood flow metering method
A fundus blood flow metering method includes a series of steps of carrying out alignment of the positional relation with an eye to be examined, carrying out aiming of a blood vessel to be measured,...
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6299583 |
Monitoring total circulating blood volume and cardiac output
A system and method for measuring total circulating blood volume and cardiac output employing an analyte diffusion approach. The analyte sensor as well as the analyte-containing fluid infusion...
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6261236 |
Bioresonance feedback method and apparatus
A biofeedback method and apparatus for applying a physical action to a subject for treatment purposes and for other applications is disclosed. The method and apparatus disclosed include the steps...
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6215403 |
Wireless monitoring system
In accordance with the present invention, a detection device capable of being coupled to a person for remotely monitoring heart and respiratory functions includes a processor, a photo cell coupled...
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6192269 |
Ophthalmological measurement apparatus
An ophthalmological measurement apparatus for measuring bloodstream velocity in an fundus blood vessel in an eye to be measured including a measurement system for measuring the bloodstream velocity...
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