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5277187 |
Apparatus and method for improving the performance of an automatic blood pressure cuff
An improved blood pressure measuring device includes a filter intermediate the pressure cuff and the bleed valve to prevent dust, dirt, and other debris from clogging the bleed valve and causing...
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5267566 |
Apparatus and method for blood pressure monitoring
A method and apparatus for monitoring blood pressure by a transducer engaging a flexible part of a body near capillaries and remote from an artery. The transducer provides an electrical signal when...
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5267567 |
Oscillometric-type blood pressure measuring apparatus
An oscillometric-type automatic blood pressure measuring apparatus, including a pressure device such as a cuff, an oscillometric-type blood pressure measuring device for (a) occluding an artery of...
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5243991 |
Adjustable blood pressure cuff and method of measuring blood pressure
A flexible blood pressure cuff for use in measuring the blood pressure of a patient, includes an inflatable bladder having a first side and a second side. One of the bladder sides is provided with...
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5224484 |
Pressure signal processing apparatus and method for an automatic blood pressure gauge
An automatic blood pressure gauge uses two pulse width modulated solenoid valve to achieve a substantially linear deflation curve. The solenoid valves are controlled by a valve switching signal...
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5220925 |
Electronic sphygmomanometer
A sphygmomanometer including a constant rate air-bleed valve for that is coupled to a cuff for reducing the pressure in the cuff. The valve has a valve casing and a tubular member in the casing. A...
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5215096 |
Method and apparatus for automatic blood pressure monitoring
A non-invasive automatic blood pressure monitor uses the oscillometric technique. That is, a cuff is inflated and then deflated in discrete deflation steps, while the oscillations caused by...
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5203341 |
Electronic sphygmomanometer
An electronic sphygmomanometer employing both the Korotkoff method and the oscillometric method which is thereby capable of accurately measuring blood pressure due to the two advantages of the...
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5201320 |
Blood pressure measuring device
In combination with a conventional sphygmomanometer, a solenoid, an air release valve connected to the solenoid for the release of air from the cuff bladder of the sphygmomanometer, a pressure...
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5195522 |
Tonometry sensor calibration apparatus
A calibration apparatus for use in calibrating a tissue stress sensor used in a blood pressure monitoring system. The calibration apparatus includes a calibration head which is adapted to be...
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5181515 |
Method and apparatus for measuring blood pressure
A method of measuring blood pressure having the following steps. The steps of making a subject squat down, making the body of the subject remain stationary during a fixed time in the squatting...
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5178152 |
Electronic sphygmomanometer
An electronic sphygmomanometer includes CPU-controlled peripheral elements such as a pump, an amplifier, an A/D converter and a printer. During measurement of blood pressure, power consumption is...
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5170795 |
Oscillometric blood pressure monitor and method employing non-uniform pressure decrementing steps
A blood pressure cuff is applied about a subject's artery, and inflated above the systolic level thus fully occluding the artery for a full heart cycle. The cuff pressure is thereafter reduced to...
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5161538 |
Blood pressure measuring device
A blood pressure measuring device is provided which comprises a cuff for pressuring an artery, electronic circuitry made up of a clock, control unit, and blood pressure measuring unit for measuring...
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5158093 |
Universal fitness testing system
A universal fitness testing system (10) that allows individuals to determine their aerobic fitness in 30-seconds. The system (10) functions with two inputs: the first is a set of pulse-rate digital...
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5143077 |
Constant-rate discharge valve, and electronic automatic sphygmomanometer using same
A constant-rate discharge valve adapted so as to render a discharge rate constant includes a housing having an internal air chamber and an open hole open to the atmosphere, first and second air...
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5135003 |
Automatic sphygmomanometer
An automatic sphygmomanometer for measuring the blood pressure of a subject based on Korotkoff sounds is adapted to analyze the transition of the pulse signal amplitude of a detected cuff pressure...
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5099851 |
Automatic sphygmomanometer
An automatic sphygomomanometer for recognizing blood pressure through detection of Korotkoff sound or cuff pulsating pressure, comprising an air noise removing filter including an air reservoir and...
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5095912 |
Arterial distensibility measuring apparatus
An arterial distensibility can be measured by putting a cuff with a blood flow shutting bag on an upper arm. The arterial distensibility E can be measured by measuring a shut blood flow critical...
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5072736 |
Non-invasive automatic blood pressure measuring apparatus
A non-invasive automatic blood pressure measuring apparatus consisting of a blood flow meter non-invasively detecting the blood flow of the arteries on the proximal or distal side of the cuff, a...
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5054495 |
Automatic blood-pressure measuring apparatus
An apparatus for automatically measuring a blood pressure of a subject, including a pressing device for pressing a body portion of the subject, such as an upper arm; a first blood pressure...
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5052397 |
Oscillometric blood pressure monitor employing non-uniform pressure decrementing steps
The deflation of the inflatable and deflatable cuff worn by a subject during automatic sphygmomanometric measurement is accomplished in unequal size decrements and principally in larger steps than...
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5040540 |
Method and apparatus for non-invasive monitoring of central venous pressure, and improved transducer therefor
A method and apparatus for measuring central venous pressure (CVP) is disclosed, along with an improved transducer (50) for measuring CVP in infants. Changes in CVP may also be monitored by...
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5031629 |
Hypertension analyzer apparatus
The present invention is directed to an apparatus that is compact, portable and highly effective in performing a hemodynamic profile of a patient, and is particularly useful in generating such...
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5031630 |
Automatic blood pressure measuring apparatus
An automatic blood pressure measuring apparatus, including an inflatable cuff having an elongate configuration, the inflatable cuff being wound around a body portion of a subject, for pressing an...
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5022403 |
Automatic blood pressure measuring device and method with cuff size determination
The device measures blood pressure automatically using the oscillometric technique wherein cuff pressure is deflated stepwise in dynamically determined increments while cuff pressure oscillations...
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5014714 |
Method and apparatus for distinguishing between accurate and inaccurate blood pressure measurements in the presence of artifact
A system for determining if a blood pressure measurement made by an automatic blood pressure monitor has been adversely affected by artifact. The system first compares the diastolic, mean arterial...
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4995399 |
Blood pressure measuring system
A blood pressure measuring system for continuously measuring blood pressure values of a subject, including a measuring device for repetitively measuring a blood pressure value of the subject, a...
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4974601 |
Portable heart monitor performing multiple functions
A method and apparatus for monitoring multiple aspects of a patient's cardiac condition which is portable microprocessor based, and can be programmed to select (for storage in random access memory...
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4974597 |
Apparatus for identifying artifact in automatic blood pressure measurements
A system for identifying artifact in automatic blood pressure measuring system. The system determines whether a single blood pressure signal, such as an oscillometric pulse or Korotkoff sound,...
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4971064 |
Electronic clinical sphygmomanometer
In an electronic clinical sphygmomamometer of the type which measures blood pressure on the basis of a Korotkoff-sound signal in a pulse-wave gate signal, the level of a detected pulse-wave signal...
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4969466 |
Inflation rate control circuit for blood pressure cuffs
A blood pressure monitor having a motor driven air pump for inflating an blood pressure cuff, and a control system for controlling the voltage applied to the motor to regulate the rate at which the...
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4967756 |
Blood pressure and heart rate monitoring method and apparatus
Improved ambulatory blood pressure and heart rate monitoring and recording apparatus and method are described. The apparatus uses an auscultatory transducer connected to a microprocessor-based...
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4961429 |
Diastolic pressure sensor
An arterial pressure pulse is sensed and the next succeeding Korotkoff sound is sensed and the time lag between the two is measured. When the time lag between the two cannot be measured, the cuff...
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4953557 |
Blood pressure monitor
A monitor for the automated non-invasive measurement of a patient's blood pressure comprising apparatus for automatically inflating and deflating a cuff which is to be applied around a patient's...
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4949710 |
Method of artifact rejection for noninvasive blood-pressure measurement by prediction and adjustment of blood-pressure data
For use in performing non-invasive blood-pressure measurement (NIBP), an artifact rejection method for predicting expected data values from acquired data, and for adjusting previously acquired data...
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4944305 |
Blood pressure monitoring apparatus
A blood pressure monitoring apparatus for repetitively measuring blood pressure of a subject, including a measuring device for measuring a blood pressure of the subject at each of repetitive...
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4938227 |
Method and apparatus for measuring blood pressure
A method and apparatus for measuring blood pressure of a subject based on Korotkoff sounds which are produced synchronously with heartbeat of the subject by pressing a body portion of the subject....
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4922918 |
Automatic non-invasive blood pressure reading device
An improved method and apparatus for non-invasive determination of blood pressure is disclosed. The oscillometric technique is employed, wherein a valve representative of the blood pressure is...
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4917116 |
Automatic blood pressure measuring device
A method and apparatus for determining mean blood pressure involves the use of a pre-programmed microprocessor which interprets pressure oscillation values from a pressure cuff affixed to a...
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4890625 |
Blood pressure cuff with integral acoustic pickup cup
A blood pressure cuff having an internal acoustic pickup cup. In one embodiment, the cup communicates with the interior of the blood pressure cuff bladder through an aperture that is sufficiently...
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4889132 |
Portable automated blood pressure monitoring apparatus and method
A portable auscultatory blood pressure and heart rate measurement system is wearable by an ambulatory patient and measures systolic and diastolic pressure upon request or at random time intervals...
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4878501 |
Electronic stethoscopic apparatus
An electronic stethoscopic apparatus including: a housing with a main body having a plurality of switches and jacks electrically installed therein; an audio-signal amplifying device incorporating a...
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4870973 |
Electronic blood pressure meter having means for detecting artifacts
In an electronic blood pressure meter, artifacts or disturbances of blood pressure measurement due to the motions of the arm or the body of the person whose blood pressure is to be measured is...
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4867171 |
Blood pressure measurement apparatus
Disclosed is a blood pressure measurement apparatus in which a waveform discrimination method is used in the recognition of Korotkoff sounds in the measurement of blood pressure by auscultation. In...
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4860760 |
Electronic blood pressure meter incorporating compensation function for systolic and diastolic blood pressure determinations
In an electronic blood pressure meter, there are included a cuff adapted to be fitted around the arm of a patient whose blood pressure is to be measured and formed with a cavity, a device for...
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4858616 |
Blood pressure measurement system for filtering low-frequency, high-amplitude noise
A noise-immune blood pressure measurement system filters out high frequency noise and blood pulses. The system also recognizes and filters out slow, large noise signals in the range of 0.5 Hz. Such...
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4850368 |
Electronic blood pressure measurement device and its method of operation, performing minimal squeezing of patient's arm
This electronic blood pressure measurement device includes a cuff with pressurization and sensing means, first measuring means for determining systolic, average, and diastolic blood pressures...
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4840181 |
Sphygmomanometer adopting recognition of korotkoff sounds
A sphygmomanometer includes a pump for applying variable pressure to a blood vessel, a microphone for sensing oscillation which is produced from the blood vessel being pressurized by the pump, a...
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4832039 |
Linear, low noise inflation system for blood pressure monitor
A compact, low noise inflation system for pressurizing occlusion cuffs used in conjunction with automatic blood pressure monitoring equipment. In the preferred embodiment, an electric pump is...
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