|
Match
|
Document |
Document Title |
|
|
5766127 |
Method and apparatus for improved photoplethysmographic perfusion-index monitoring
An improved method and apparatus for the monitoring perfusion of the tissue of a patient by arterial blood is provided. An optical path length change is calculated for a number of digitized samples...
|
|
|
5752914 |
Continuous mesh EMI shield for pulse oximetry sensor
An improved electromagnetic shield for a photodetector which uses a wire mesh screen laminated to an insulating layer. A portion of the wire mesh screen and laminated layer sandwich can then be cut...
|
|
|
5747789 |
Method for investigation of distribution of physiological components in human body tissues and apparatus for its realization
The method of investigation of physiological components distribution in human body tissues includes optical illumination of the investigated area, recording of the spatial distribution of the...
|
|
|
5741213 |
Apparatus for analyzing blood
An apparatus for analyzing blood includes an image capturing device for capturing an image including at least one object blood cell and an analyzer for analyzing the captured image as an image F(x,...
|
|
|
5736103 |
Remote-dosing analyte concentration meter
A meter is used in conjunction with a hollow, frustum-shaped disposable device to measure the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a...
|
|
|
5730124 |
Medical measurement apparatus
A medical measurement apparatus which includes a measuring unit for outputting electrical signals in the amount of a target analyte measured in a specimen, and a control unit. The control unit has...
|
|
|
5725480 |
Non-invasive calibration and categorization of individuals for subsequent non-invasive detection of biological compounds
A process of calibrating an individual in preparation for the non-invasive measurement of an biological compound across the skin of that individual using non-ionizing radiation is provided. The...
|
|
|
5724967 |
Noise reduction apparatus for low level analog signals
Pairs of signal input leads with a low level signal imposed across them usually have noise induced by stray coupling capacitance which is typically unequal. This results in an unfavorable signal to...
|
|
|
5722397 |
Enhancement of transdermal monitoring applications with ultrasound and chemical enhancers
A method of enhancing the permeability of the skin or mucosa to an analyte for diagnostic purposed is described utilizing ultrasound or ultrasound plus a chemical enhancer. If desired the...
|
|
|
5719398 |
Method and device for imaging the interior of a turbid medium
A method and device of imaging an interior of a turbid medium is disclosed for reconstruction of biomedical images consecutive irradiation of the turbid medium with light from a light source from a...
|
|
|
5713351 |
Intrauterine meconium detection system
A system for intrauterine detection of one or more biological substances, such as meconium or blood, is described. The presence in amniotic fluid of such biological substances indicates an abnormal...
|
|
|
5706821 |
Spectroscopic method for quantitatively determining the change of concentration of a light or other radiation absorbing compound in a medium which is interrogated through an intervening medium
A spectrometric technique is described for quantitatively determining the change in concentration of a substance which is contained in a medium which both absorbs and scatters spectroscopically...
|
|
|
5699794 |
Apparatus for automated urine sediment sample handling
An automated apparatus for urine sediment sample handling includes settling cells for carrying patient samples transported on a sample and cell transport assembly. An illumination and camera...
|
|
|
5697367 |
Specially grounded sensor for clinical spectrophotometric procedures
A specially grounded sensor for improving signal-to-noise ratios in clinical spectrometric procedures includes a sensor body carrying electrically actuated spectrometric signal-producing and...
|
|
|
5694931 |
Method and apparatus for measuring concentration of absorptive constituent in scattering medium
A method for measuring a concentration of an absorptive constituent in a scattering medium comprises the steps of emitting of light having two or more predetermined wavelengths; making said light...
|
|
|
5694930 |
Device for qualitative and/or quantative analysis of a sample
Disclosed is a device for qualitative and quantitative in-vitro or in-vivo analysis of a sample by means of ATC (Attenuated Total Reflectance) while utilizing at least one radiation source, an ATR...
|
|
|
5676142 |
Method and apparatus for measuring scattering property and absorption property in scattering medium
Measuring scattering and absorption properties of a scattering medium according to the following: (a) causing pulsed measuring light having a predetermined wavelength to enter the scattering...
|
|
|
5676139 |
Spring clip probe housing
This probe makes use of a simplified housing construction that significantly reduces the cost of the manufacture of the probe housing. The housing is implemented using two molded housing halves,...
|
|
|
5666952 |
Tissue transmitted light sensor
A supporting shaft stands on an external auditory canal arm holding an LED. An attaching portion holding a PD is rotatably connected to one end of a holding arm. A column having a through hole 11b...
|
|
|
5645061 |
Process and device for the determination of local dye concentration and of scattering parameters in animal and human tissues
A device for determining size variations of tissue particles. The device includes a light source and an illuminating light guide capable of irradiating light into a human tissue to produce...
|
|
|
5632273 |
Method and means for measurement of biochemical components
Biochemical components and changes in the components are measured by directing light of several wavelengths into a body at one location, sensing light at the wavelengths emerging from the body at a...
|
|
|
5630413 |
Reliable noninvasive measurement of blood gases
This invention relates to methods and apparatus for, preferably, determining non-invasively and in vivo at least two of the five blood gas parameters (i.e., pH, [HCO 3 - ], PCO 2 , PO 2 , and O 2 ...
|
|
|
5628309 |
Meter for electrically measuring and recording injection syringe doses
A method and device for electrically measuring and recording injection syringe doses. The device has a voltage generator for applying a voltage to an input terminal of a syringe. The device also...
|
|
|
5619992 |
Methods and apparatus for inhibiting contamination of reusable pulse oximetry sensors
A protective sheath for a pulse oximetry sensor. The sheath covers the sensor and inhibits contamination thereof during use. The sheath obviates the need to clean the pulse oximetry sensor after...
|
|
|
5582169 |
Method and apparatus for measuring concentration of absorptive constituent in scattering medium
Optical pulses emitted from an optical pulse source is incident on a living tissue and is input to an optical sampling unit. An optical sampling unit detects intensities, f, of optical pulses...
|
|
|
5553610 |
Apparatus and method for noninvasive chemical analysis
A method and apparatus are provided for magnetohydrodynamic acoustic-resonance, near-IR spectroscopy. The method includes a step of applying to a subject under study a magnetic field having a...
|
|
|
5544651 |
Medical system and associated method for automatic treatment
A medical device comprises a sensor for at least periodically measuring a predetermined physiological parameter of a patient and for generating a signal encoding a measured value of the...
|
|
|
5542421 |
Method and apparatus for cardiovascular diagnosis
A non-invasive method and apparatus for sensing relative blood conditions in extremities, such as using photoelectric dermachromography to measure differential blood flow and/or pooling between...
|
|
|
5535743 |
Device for the in vivo determination of an optical property of the aqueous humour of the eye
A device for the in vivo determination of an optical property of the aqueous humor in the anterior chamber of the eye includes a light source to irradiate light along a primary-side light path into...
|
|
|
5529065 |
Method for measuring scattering medium and apparatus for the same
A method of measuring internal information in a scattering medium and an apparatus for the same of the present invention measure internal information in the scattering medium by measuring light...
|
|
|
5515859 |
Myocardial infarction and ischemia detection method and apparatus
A device (10) for detecting a substance in a patient's expired breath (88) such as adenosine indicative of cardiovascular distress. The device (10) shines an infrared light (68) through a chamber...
|
|
|
5511546 |
Finger apparatus for measuring continuous cutaneous blood pressure and electrocardiogram electrode
Apparatus for continuously and non-invasively monitoring and measuring various biochemical and biophysical functions through the finger of a patient. The apparatus of the present invention...
|
|
|
5492118 |
Determining material concentrations in tissues
The relative concentration of a material such as glucose in a turbid medium such as living tissue may determining the scattering coefficient of the light that has passed through the turbid medium;...
|
|
|
5482035 |
Method for monitoring the condition of a patient
The invention relates to a method for anticipating a change occurring in the condition of a patient's organism before the condition of a patient reaches a critical point, the condition of a...
|
|
|
5477853 |
Temperature compensation method and apparatus for spectroscopic devices
An apparatus and method which detects temperature variations of an LED used with spectroscopic devices. The apparatus and method uses a source to supply a signal to the LED. A detector coupled to...
|
|
|
5457535 |
Method and apparatus for determining the concentration of optically-active materials in a fluid
In a method and apparatus for determining the concentration of optically-active substances in a fluid, such as glucose in the body fluids of a patient, two light sources are used to produce...
|
|
|
5441054 |
Apparatus for measuring absorption information in scattering medium and method therefor
Modulated light from a light source is incident on the surface of a scattering medium, and light passing through this scattering medium is externally detected. A signal of a predetermined frequency...
|
|
|
5438986 |
Optical sensor
An optical sensor, for positioning and holding an optical source and optical detector on opposite sides of a patient's finger or other extremity includes a clothespin-like housing having opposed...
|
|
|
5438201 |
Method and apparatus for restraining finger motion in blood analyte optical measurement
A method and apparatus for preventing undesirable index finger rotational motion within a non-invasive quantitative blood analyte measurement instrument includes placing at least the middle finger...
|
|
|
5429129 |
Apparatus for determining spectral absorption by a specific substance in a fluid
An apparatus for determining spectral absorption by a specific substance in a fluid having an energy source, a sensor an interface device, a support structure and a connector. The energy source...
|
|
|
5429128 |
Finger receptor
A finger receptor is used with a non-invasive monitoring device to determine non-invasively the concentration of known constituents in blood or tissue. The receptor has a channel for receiving a...
|
|
|
5413102 |
Medical sensor
A medical sensor for monitoring vital signs, in particular oxygen saturation, consists of a flexible carrier carrying the transmitter and receiver elements, and a housing element specifically...
|
|
|
5402778 |
Spectrophotometric examination of tissue of small dimension
A system for examination of a relatively small volume of biological tissue of interest using visible or infra-red radiation includes a spectrophotometer, an optical medium of a relatively large...
|
|
|
5390670 |
Flexible printed circuit sensor assembly for detecting optical pulses
A flexible sensor assembly for detecting optical pulses in which said sensor assembly comprises a flexible printed circuit having mounted thereon at least one light emitting diode and at least one...
|
|
|
5387259 |
Optical transdermal linking method for transmitting power and a first data stream while receiving a second data stream
An optical transdermal link. The interface consists of two modules. An internal module is placed just inside the skin, and an external module is placed just outside the skin and facing the internal...
|
|
|
5386827 |
Quantitative and qualitative in vivo tissue examination using time resolved spectroscopy
A system for examination of biological tissue of a subject includes a light source, a light detector, a gated integrator and a integrator timing control adapted to integrate detected photons over...
|
|
|
5385143 |
Apparatus for measuring predetermined data of living tissue
Disclosed is an apparatus for measuring a predetermined data of a living tissue, such as an oxygen saturation, a dye dilution curve and level of hemoglobin. The apparatus has an illumination...
|
|
|
5377673 |
Intrauterine monitoring device
An improved fetal monitoring device which incorporates sensors which permit the monitoring of inutero fetal heart rate, oxygen saturation, blood chemistry and eliminates the collection of such...
|
|
|
5377686 |
Apparatus for detecting leakage from vascular tissue
An apparatus and method for directly imaging fluorophores in tissue or fluid. The apparatus includes a fluorescence exciter light source for generating fluorescence exciter light, a collimater for...
|
|
|
5376336 |
Apparatus for determining the flow of matter passing through a boundary surface
An apparatus for determining the flow of matter passing through a boundary surface, which is provided with at least one sensing layer corresponding to the boundary surface, and presents a known or...
|