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7623907 Endoscope for observing scattered light from living body tissue and method of observing scattered light from living body tissue  
An endoscope apparatus and method are disclosed wherein first and second light beams, each having different center wavelengths, illuminate an object. A detector and a light receiver optical system...
7366567 Method for treating myocardial infarction  
A method for treating patients after a myocardial infarction which includes pacing therapy is disclosed. A cardiac rhythm management device is configured to deliver pre-excitation pacing to one or...
7254425 Method for detecting artifacts in data  
A method for identifying artifacts occurring during a measurement of the concentration of an analyte in a biological sample by means of an apparatus that employs temperature-controlled optical...
7117746 Digital pressure gauge  
A digital pressure gauge comprises a power supply, an input button unit, a pressure sensor, a display unit, a warning unit, and a control unit. The control unit counts the number of operations...
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...
6740047 Motility analysis, display, and interpretation system  
The system includes an array of transducers that simultaneously senses multiple intralumenal pressures, a data acquisition module that acquires and stores samples of the measured pressures,...
6731967 Methods and devices for vascular plethysmography via modulation of source intensity  
A time-varying modulating signal is used as a plethysmography signal, rather than a time-varying detected optical power. The time-varying detected optical power is used (e.g., in a feedback loop)...
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...
6636760 Planar transducer for measuring biomedical pressures  
A planar pressure transducer is disclosed which is useful for interposing between living tissue and a medical device that applies pressure to the tissue in order to estimate the pressure applied to...
6575912 Assessing heart failure status using morphology of a signal representative of arterial pulse pressure  
The heart failure (HF) status of a patient is determined based on the morphology of a signal representative of arterial pulse pressure. The signal can be a plethysmography signal that is produced...
6533729 Optical noninvasive blood pressure sensor and method  
A blood pressure sensor includes a source of photo-radiation, such as an array of laser diodes. The sensor also includes a two-dimensional, flexible reflective surface. The reflective surface is...
6494840 Portable ultrasonic palpation system  
A portable ultrasound palpation device for measuring the Young's modulus and the thickness of a soft tissue layer includes a hand-holdable palpation probe having an ultrasonic transceiver connected...
6461301 Resonance based pressure transducer system  
The invention relates to a resonance based pressure transducer system, insertable into a living body for the in vivo measurement of pressure. It comprises a pressure sensor ( 2 ) having a...
6405075 Apparatus and method of finding the diastolic blood pressure point using pulse oximetry  
An apparatus and method are provided for deriving diastolic blood pressure (DP) from systolic blood pressure (SP) and mean blood pressure (MP), especially useful in infants. A pulse oximeter is...
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...
5987995 Fiber optic pressure catheter  
A fiber optic pressure catheter includes a light source, an optical fiber coupled to receive light from the light source and a sensor head that is optically coupled to the optical fiber. The sensor...
5976096 Apparatus for ophthalmologic examination  
An apparatus for ophthalmologic examination includes an illuminating system for applying measuring light onto a measured area at least including a blood current in the fundus to an eye to be...
5810736 Wrist pulse monitor  
A pulse monitor is provided which has a pulse monitor unit supported on a wrist band over the carpal tunnel, with a infra-red optical sensor which picks up the flow of blood therein. The detected...
5788634 Multi purpose sensor  
The multi-purpose sensor includes a pair of arms, light-emitting device and light-receiving device that are fitted in an end portion of the arms, respectively, and electrodes that are made of an...
5771327 Optical fiber probe protector  
A fiber optic probe protector for protecting a fiber optic probe such that sterilization of the probe after each use is not necessary. The fiber optic probe protector includes a sheath, a window...
5692520 Method and apparatus for measuring arterial and venous blood flow in body appendages  
The present invention is directed to a non-invasive method and apparatus for measuring arterial and venous blood flow in body appendages. The present invention is also directed to a non-invasive...
5676140 Non-invasive blood pressure measurement device  
A non-invasive blood pressure measurment device including: a cuff, a pressure detector for detecting a cuff pressure; a cuff pressure control pump for linearly increasing or decreasing the cuff...
5579774 Method and apparatus for monitoring local cerebral physiology  
An apparatus for continuous monitoring of cerebral blood flow and intracranial pressure for substantially the same local region of cerebral tissue. A combined probe includes an elongated housing...
5526112 Probe for monitoring a fluid medium  
A probe for monitoring a fluid medium employing at least one fiber optic emitting a wave into the fluid medium. The fluid medium scatters or causes luminescence of the emitted wave which is then...
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...
5425371 Fiberoptic pressure transducer  
A fiberoptic fluid pressure transducer system involving a thin flat diaphragm, fiberoptic elements, a tubular member having an opening of fixed dimensions on the side thereof, an L-shaped...
5423322 Total compliance method and apparatus for noninvasive arterial blood pressure measurement  
A system and method for automatically and noninvasively monitoring the blood pressure of a subject. The volume changes of an artery, such as a digital artery or the temporal artery, are detected by...
5402777 Methods and devices for facilitated non-invasive oxygen monitoring  
The present invention is directed to a sensor system for use with a blood characteristic measurement device such as a pulse oximeter, on areas of the body having low normal cutaneous blood flow and...
5379774 Measurement of arterial elasticity and the frequency characteristic of the compliance of an artery  
An apparatus for measuring arterial elasticity includes a cuff member having a light source and light detector, a variable pressure generating device, a fluid pressure sensor, a digital signal...
5348019 Optical fiber pressure sensing catheter  
An optical fiber pressure sensing catheter and a method for using such for detecting a discrete pressure within an organ such as an esophagus. The catheter comprises an elongated hollow body having...
5325865 Intracranial pressure monitoring system  
A catheter assembly for measuring a fluid pressure in a body cavity includes an optical converter responsive to an electrical power source for energizing a light-emitting diode which has drift...
5313957 Guide wire mounted pressure transducer  
A physiological pressure transducer assembly mounted on a transvenously-insertable guide wire is disclosed. The multiple coils of the guide wire define an elongated tubular passage within which...
5269310 Method of measuring blood pressure with a plethysmograph  
A method and apparatus for determining arterial blood pressures using a photoplethysmograph is provided. In the inventive method the photoplethysmograph output is calibrated to the patient using an...
5225672 Method and apparatus for detecting movement of an electro-optical transducer  
An apparatus for photo-optically detecting transducer motion using a photodetector resiliently suspended inside the transducer housing and photo-optically coupled to a light source. During movement...
5218966 Electronic blood pressure meter  
In an electronic blood pressure meter for measuring blood pressure from a finger, there is provided a photoelectric sensor including a light emitting element and a light receiving element for...
5195375 Miniaturized pressure sensor  
A miniaturized pressure sensor for physiological in situ measurements has an elastic material shell having an outer surface with an opening extending therethrough. The opening is covered by an...
5178153 Fluid flow sensing apparatus for in vivo and industrial applications employing novel differential optical fiber pressure sensors  
An optical fiber fluid flow device is provided for in vivo determination of blood flow in arteries. The device includes a fiber optical fluid pressure measuring device having at least first and...
5172696 Photoelectric sphygmomanometer of volume oscillometric method-type  
A photoelectric sphygmomanometer of volume oscillometric method-type is provided with regulating means for regulating quantity of light, carrier-wave gain and pulsation gain based upon the level of...
5140990 Method of measuring blood pressure with a photoplethysmograph  
A method and apparatus for determining arterial blood pressures using a photoplethysmograph is provided. In the inventive method the photoplethysmograph output is calibrated to the patient using an...
5111817 Noninvasive system and method for enhanced arterial oxygen saturation determination and arterial blood pressure monitoring  
A noninvasive system and method for monitoring arterial oxygen saturation levels which may also be used to continuously and noninvasively monitor blood pressure, including generating a continuous...
5107847 Fiber-optic transducer apparatus  
A fiber-optic transducer apparatus, and a related method of manufacturing it, for particular use in medical applications such as invasive blood pressure and body temperature measurement. The...
5065010 Fiber optic measurement system having a reference conductor for controlling the energy level of the light source  
A source fiber receives light from a light source and conducts the light through a catheter to transmit the light to a reflective surface at the catheter end. The reflective surface has a...
5055671 Apparatus for detecting transducer movement using a first and second light detector  
An apparatus for photo-optically detecting transducer motion in a transducer using a photodetector elastically suspended inside the transducer housing and photo-optically coupled to a light source....
5018529 Miniaturized sensor for physiological pressure measurements  
Miniaturized sensor for physiological pressure measurements in situ, including an elastic sleeve (1) with a diaphragm portion through which the hydrostatic pressure is transmitted as a force acting...
5005584 Fiber optic pressure transducer  
A fiber optic transducer utilizing a flexible membrane to transduce pressure by interrupting light transmission between fiber optic paths in a catheter or guide wire carrier by misaligning the...
4991590 Fiber optic intravascular blood pressure transducer  
A device for the measurement of the blood pressure of a patient includes an arrangement for transmitting a light through an optical fiber; an arrangement for receiving and measuring a reflected...
4944304 Electronic sphygmomanometer  
An electric sphygmomanometer has a cuff, a pulse wave detecting photoelectric sensor including a light-emitting element and a light-receiving element which are disposed on the cuff, as well as a...
4941473 Guide for mechanical guiding of a catheter in connection with cardio and vascular examination  
A guidewire for guiding a catheter is provided including a pressure sensor at the distal end of the guidewire and a ventilation passage for connecting the pressure sensor to ambient pressure.
4924877 Pressure sensing catheter  
A pressure sensing catheter includes a pressure sensor within the length of a hollow catheter insertable into the human body. The catheter has a surrounding circumferential pressure transmitting...
4924870 Fiber optic sensors  
Serveral improvements in fiber optic sensing systems are disclosed. One improvement incorporates a dielectric filter applied directly to the sensing end of an optical fiber detector which has the...
Matches 1 - 50 out of 87 1 2 >