Matches 201 - 250 out of 250 < 1 2 3 4 5
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5666956 Instrument and method for non-invasive monitoring of human tissue analyte by measuring the body's infrared radiation  
A method and an instrument for the non-invasive detection of an analyte (e.g. glucose) concentration in human body tissue such as blood is disclosed. The instrument measures analyte (e.g. glucose)...
5657754 Apparatus for non-invasive analyses of biological compounds  
An apparatus for the non-invasive analysis of non-homogeneous samples is disclosed. The apparatus is particularly suited for analyzing biological samples having different constituents. An intensity...
5605152 Optical glucose sensor  
An improved glucose sensor adapted for in vivo implantation includes one or more optical fiber optrodes mounted within a semipermeable probe housing designed for differential diffusion of glucose...
5586553 Transcutaneous sensor insertion set  
An insertion set is provided for transcutaneous placement of a sensor such as a glucose sensor at a selected site within the body of a patient. The insertion set comprises a slotted insertion...
5569186 Closed loop infusion pump system with removable glucose sensor  
An infusion pump system includes a removable in vivo glucose sensor for monitoring glucose concentration level in a patient, and for signaling an infusion pump to deliver a selected medication such...
5560356 Diagnostic system and method using an implanted reflective device  
A device and method for testing an animal for the existence of a biomedical disorder or condition, such as the presence or concentration of particular compositions or hyperglycemia/hypoglycemia, is...
5553613 Non invasive blood analyte sensor  
A device for the non-invasive measurement of the concentration of a specific analyte, particularly glucose, in arterial blood flowing in a patient's body part, which device comprises a solid first...
5553616 Determination of concentrations of biological substances using raman spectroscopy and artificial neural network discriminator  
The concentration of a substance, such as glucose, in a biological sample, such as human tissue (e.g. the skin of an index finger) is non-invasively determined by directing the output beam of a...
5533509 Method and apparatus for non-invasive measurement of blood sugar level  
To intensity-modulate laser light periodically wavelength-modulated by and emitted from a wavelength-variable semiconductor laser 11. To separate the laser light into optical paths 13a, 13b with a...
5529755 Apparatus for measuring a glucose concentration  
A non-invasive glucose concentration measurement apparatus includes: a light source which projects at the sample radiation of a wavelength range including a wavelength at which absorption greatly...
5515847 Self-emission noninvasive infrared spectrophotometer  
A method and apparatus for monitoring glucose, ethyl alcohol and other blood constituents in a noninvasive manner. The measurements are made by monitoring infrared absorption of the desired blood...
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;...
5487384 Kinematic assay of plasma glucose concentration without blood sampling  
A method is described which can identify the plasma glucose optical signal from the high background in a "total finger spectrum" by causing changes in the signal upon altering glucose concentration...
5452716 Method and device for in vivo measuring the concentration of a substance in the blood  
In vivo measurement of the concentration of a substance in the blood, e.g. glucose, despite varying concentrations of interfering components, e.g. protein and fat, by measuring the absorption of...
5448992 Method and apparatus for non-invasive phase sensitive measurement of blood glucose concentration  
A method and apparatus for non-invasive measurement of blood glucose concentration based on producing a polarized-modulated laser beam via a polarizing frequency shifter (24), measuring a phase...
5433197 Non-invasive glucose measurement method and apparatus  
A glucose sensor to provide a non-invasive means of determining blood glucose which is of particular value in the diagnosis and treatment of diabetes. The patient's eye is illuminated with...
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...
5408996 System and method for localization of malignant tissue  
System and method for detection and localization of malignant tissue in situ during a medical procedure such as endoscopy or surgery. A fluorescent metabolic imaging agent, consisting of a...
5398681 Pocket-type instrument for non-invasive measurement of blood glucose concentration  
A pocket-type apparatus for non-invasive measurement of blood glucose concentration based on producing a polarized-modulated laser beam via an optical phase shifter (32), measuring a phase...
5372135 Blood constituent determination based on differential spectral analysis  
The present invention relates to the determination of an analyte or multiple analytes in blood using information derived from the differential optical absorption spectra of blood. Specifically, the...
5341805 Glucose fluorescence monitor and method  
A glucose monitor, and related method, determines the concentration of glucose in a sample by monitoring fluorescent light produced directly by any glucose present in the sample. The glucose...
5322063 Hydrophilic polyurethane membranes for electrochemical glucose sensors  
Homogeneous membranes permeable to oxygen and glucose composed of hydrophilic polyurethanes that are capable of absorbing from 10 to 50% of their dry weight of water. Variations in the composition...
5313941 Noninvasive pulsed infrared spectrophotometer  
A method and apparatus for monitoring glucose, ethyl alcohol and other blood constituents in a noninvasive manner. The measurements are made by monitoring infrared absorption of the desired blood...
5267151 Method and apparatus for detecting and identifying a condition  
A method and apparatus for sensing and classifying a condition of interest in a system from background noise in which a parameter representative of the condition of interest is sensed and an...
5267152 Non-invasive method and apparatus for measuring blood glucose concentration  
A method and apparatus for measuring blood glucose concentration by irradiating blood vessels with electromagnetic radiation, where the method and apparatus uses near-infrared radiation...
5243982 Device for determining the concentration of at least one substance in organic tissue  
A device for determining the concentration of at least one substance in organic tissue includes a subcutaneous needle for insertion into the tissue and a pumping and suction unit which is...
5222496 Infrared glucose sensor  
Systems and methods for non-invasive blood analysis for the presence of glucose are disclosed in which blood is illuminated at a plurality of discrete wavelengths selected from the near infrared...
5209231 Optical glucose sensor apparatus and method  
An optically based apparatus for non-invasively determining the concentration of optically active substances in a specimen comprises, a source of a beam of spatially coherent light which is acted...
5183042 Electromagnetic method and apparatus to measure constituents of human or animal tissue  
To deterine glucose or other constituents of the human or animal body, near-infrared radiation containing two alternating wavelengths that have equal extinction coefficients in the tissue is...
5179288 Apparatus and method for measuring a bodily constituent  
An apparatus and method for measuring a bodily constituent such as glucose or cholesterol by analyzing a sample taken from the body such as blood, saliva or urine. The sample is placed on a test...
5146091 Body fluid constituent measurement utilizing an interference pattern  
An apparatus is disclosed for measuring a body fluid constituent. In a preferred embodiment, the apparatus directs light against a tissue containing the constituent and detects an amount of light...
5137023 Method and apparatus for monitoring blood analytes noninvasively by pulsatile photoplethysmography  
A non-invasive system for measuring the concentration of an analyte, such as glucose, in an absorbing matrix is described. The system directs beams of light at the matrix using an analyte sensitive...
5115133 Testing of body fluid constituents through measuring light reflected from tympanic membrane  
An apparatus and method are disclosed for determining a level of a constituent such as glucose in a body fluid such as blood. The apparatus and method utilize a light generator for generating a...
5112124 Method and apparatus for measuring the concentration of absorbing substances  
A non-invasive system for measuring the concentration of an analyte in an absorbing matrix is described. The system directs a beam of radiation at the matrix. The beam consists of a series of...
5099123 Method for determining by absorption of radiations the concentration of substances in absorbing and turbid matrices  
A method and apparatus for non-invasively testing analytical substances in turbid matrices i.e. body fluids and tissues. In this method a sample is irradiated with a beam of electromagnetic energy...
5077476 Instrument for non-invasive measurement of blood glucose  
Near-infrared quantitative analysis instruments non-invasively measure blood glucose by analyzing near-infrared energy following interactance with venous or arterial blood, or transmission through...
5070874 Non-invasive determination of glucose concentration in body of patients  
Radiation in the near infrared over a limited range of wavelengths about 1660 nanometers is projected on a portion of the body, for example, the ear, of the patient. The resulting radiation emitted...
5068536 Method for providing custom calibration for near infrared instruments for measurement of blood glucose  
A method is disclosed for easily and reliably custom calibrating near-infrared quantitative analysis instruments including obtaining a plurality of blood samples and blood glucose level...
5054487 Laser systems for material analysis based on reflectance ratio detection  
Systems and methods for non-invasive material analysis are disclosed in which a material (e.g., a liquid such as blood) is illuminated at a plurality of discrete wavelengths. Measurements of the...
5029583 Optical analyzer  
An optical analyzer for determining an analyte in a fluid of interest such as a body fluid of interest satisfying the foregoing need and embodying the present invention may include a housing;...
5019974 Diabetes management system and apparatus  
A system and apparatus for efficient medical control of a medical condition such as diabetes comprises a recorder, an interface and a master computer. The master computer develops a program of...
5009230 Personal glucose monitor  
A device for the non-invasive determination of blood glucose of a patient. This glucose monitor is based upon the effect of glucose in rotating polarized infrared light. More specifically, two...
4951669 Blood parameter measurement system  
A parameter of blood is sensed with a system which includes a catheter and a sensor and a volume oscillator element. The catheter has a lumen extending therethrough, a proximal end, a distal end...
4934369 Intravascular blood parameter measurement system  
A parameter of blood is sensed in vivo with a system which includes a catheter and a probe. The catheter has a lumen extending therethrough, a proximal end, a distal end and a distal opening at the...
4901728 Personal glucose monitor  
A device for the non-invasive determination of blood glucose of a patient. This glucose monitor is based upon the effect of glucose in rotating polarized infra-red light. More specifically, two...
4721677 Implantable gas-containing biosensor and method for measuring an analyte such as glucose  
The present invention relates to a novel implantable biosensor and method for sensing products, such as hydrogen peroxide, generated from an enzymatic reaction between an analyte, like glucose, and...
4704029 Blood glucose monitor  
A blood glucose monitor which is particularly applicable for use as an implant for controlling an insulin pump, or as a portable device for use by a diabetic for home blood glucose monitoring. The...
4655225 Spectrophotometric method and apparatus for the non-invasive  
A directive light beam in a wavelength range appropriate for penetrating into body tissues is applied to a portion of a patient's body and the energy transmitted or back-scattered by the underlying...
4606351 Optical indicator device for the remote measurement of physical changes in a test subject  
An optical indicator device for the remote indication and measurement of physical changes in a living body includes at least one source of light disposed remote from the test subject and at least...
4427889 Method and apparatus for molecular spectroscopy, particularly for the determination of products of metabolism  
Method and apparatus for molecular spectroscopy, particularly for the determination of products of metabolism. The absorption of infrared radiation by a specimen (2) which contains the substance to...
Matches 201 - 250 out of 250 < 1 2 3 4 5