|| List of recent Pressure Measurement-related patents
|Auto-zeroing absolute pressure sensor|
One aspect provides a method including determining that an absolute pressure sensor is not submersed in a fluid; measuring an atmospheric pressure with the absolute pressure sensor to determine an offset pressure measurement; submersing the absolute pressure sensor in a fluid; and measuring pressure with the absolute pressure sensor; wherein a compensated pressure measurement of the fluid is determined. Other embodiments are disclosed..
|Method and device for intermittent occlusion of a vein draining the organ system|
In a method for the intermittent occlusion of a vein draining the organ system, in which the vein is occluded by an occlusion device, the fluid pressure in the occluded vein is continuously measured and stored, the behavior of the fluid pressure is determined as a function of time, and the occlusion of the vein is triggered and/or released as a function of at least one characteristic value derived from the pressure measurements, pressure is applied during the occlusion in a pulsating manner. The device for the intermittent occlusion of a vein, including an occlusion device, a pressure measuring device for continuously measuring the fluid pressure in the occluded vein, and a memory for storing the fluid pressure behavior as a function of time, means are provided for applying a pulsating pressure in the occluded vein..
|Device control system and method of determining altitude|
A gaming system has a pressure measurement in the remote control (which may be the complete gaming apparatus) and this is used to derive a height of the remote control. In this way, barometric pressure measurement allows precise determination of the altitude of the game controller.
|Engine ventilation system diagnostics using pressure measurement|
A system comprising an engine including a chamber; an air intake coupled to the engine; a pressure sensor disposed in fluid communication with the air intake and disposed between the air intake and the chamber; and a processor configured to determine a breach in a ventilation system of the chamber in response to the pressure sensor.. .
|Systems and methods for monitoring the circulatory system|
In accordance with embodiments of the present disclosure, a ballistocardiogram (bcg) sensor is used to detect heart and vascular characteristics of a user, and provide a bcg output indicative of the detected cardiovascular characteristics. The bcg output can be used for various purposes, such as detecting arterial aging.
|Temperature-independent turgor pressure measurement device, method for producing said measurement device, and a method for temperature compensation for said measurement device|
The invention relates to a clamp element for a temperature-independent turgor pressure measurement device for measuring the turgor pressure in a plant sample.. .
|Method and device for operating compressed-air brakes|
A method and brake control device, with closed-loop braking intervention control functionality, for operating a vehicle compressed-air brake system includes directly processing data representing at least one pressure measurement of the compressed air, such as the pressure in the brake circuit(s) and/or the system pressure. Brake system leaks can be detected even when the vehicle is operating..
|Blood ultrafiltration substitution target method and device|
The present invention relates to a method as well as a blood treatment unit for the implementation of this method for the best possible attainment of a predetermined substitution target during the ultrafiltration of blood. According to the invention, a method and a blood treatment unit for the implementation of the method is provided, wherein it is determined by detection of pressure measurement values in the blood treatment unit whether the calculated substitution target is achieved at the end of the dialysis session or not and in case of the result that the calculated substitution target cannot be achieved with the current dialysis parameters, an adjustment of the flow rate of blood, dialysate and/or substituate is performed in order to achieve the substitution target for a given treatment time in an optimal way or modify the treatment time for the given substitution target as little as possible..
|Apparatus and method for comparing gas pressure measurements|
A singular sealed apparatus and method suitable for confirming pressure measurements in a rebreather prior to use of the rebreather. The singular sealed apparatus may have a canister lid, gas sensors and a processor, all from a rebreather, as well as a pressure sensor, an input device, a processor, an indicator and a pod with a pressure measurement outlet, a gas supply inlet, a relief valve and a gas exit valve.
|Portable blood pressure measuring apparatus and blood pressure measuring method in portable terminal|
A method and apparatus for readily measuring a blood pressure without using a cuff includes measuring, by a portable blood pressure measuring apparatus, an electrocardiogram signal and a pulse wave signal, transmitting the measured electrocardiogram signal and pulse wave signal to a portable terminal, calculating, by the portable terminal, a pulse transit time (ptt) and a pulse wave velocity (pwv) using the transmitted electrocardiogram signal and the pulse wave signal, and calculating a blood pressure value based on the ptt and the pwv. Therefore, users may readily measure a blood pressure at any time and place and may be provided with a customized blood pressure measurement result..
|Optical intraocular pressure measuring apparatus and operating method thereof|
An optical intraocular pressure measuring apparatus includes a light source, an optical module, a pressure providing module, a deformation measuring module, and a processing module. The light source provides an incident light.
|Methods for assessing swallowing motor function|
The present invention relates to methods for assessing swallowing motor function in a subject. The methods rely on obtaining intraluminal impedance and pressure measurements from the pharynx and/or esophagus of the subject during clearance of a bolus from the mouth and/or throat of the subject.
|Providing connectivity to end devices using wireless local area network technologies|
An end device operates as an access point to setup communication with a wireless station. Once the communication has been setup, the end device exchanges data packets with the wireless station while operating as an access point.
|Cuff pressure measurement device for a tracheal tube|
According to various embodiments, methods and systems for determining pressure in an inflatable cuff of a tracheal tube may employ pressure transducers associated with a cuff inflation line or a pilot balloon assembly. The pressure transducers may be implemented to provide continuous or intermittent cuff pressure.
|Motion detecting device, method of providing the same, and method of detecting movement|
In some embodiments, a motion detecting device is configured to detect whether one or more movement events have occurred. The motion detecting device can include: (a) a processing module configured to run on a computational unit; and (b) a sensing device having: (1) one or more pressure sensors configured to provide two or more pressure measurements; and (2) a transmitter electrically coupled to the one or more pressure sensors and configured to transmit the two or more pressure measurements to the computational unit.
|Method for handling pressure changes in invasive blood pressure monitoring, apparatus for blood pressure monitoring, and computer program product for blood pressure monitoring apparatus|
A method for handling sudden and substantial pressure changes in invasive arterial blood pressure monitoring, a blood pressure monitoring apparatus, and a computer program product for a blood pressure monitoring apparatus are disclosed. To provide a user of a patient monitor a possibility to readily adapt the alarm functionality of blood pressure measurement to a clinical task without a need to go through a complicated nullifying process of a high priority alarm, a touchable user interface element is produced onto a touch screen of patient monitor if a sudden and substantial change is detected in measured arterial blood pressure of the subject.
|Blood pressure measurement device|
A blood pressure measurement device includes a case, an electrocardiogram electrode, a pulse wave sensor, an estimation portion, and a display portion. The case has a peripheral surface to be held with both hands.
|Method for correcting blood pressure estimation parameter and blood pressure measurement apparatus|
As different artery blood pressure combination measurement, peripheral blood pressure combination measurement that combines blood vessel diameter measurement to measure a blood vessel diameter as a blood vessel cross-section index value of a central artery as a first artery with peripheral blood pressure measurement to measure blood pressure of a peripheral artery as a second artery is conducted. Then, a parameter for a blood pressure estimation process (for example, a blood vessel hardness parameter or a correlation parameter) that estimates the central aortic blood pressure from the blood vessel diameter of the central artery is corrected by using measurement results of the peripheral blood pressure combination measurement..
|Method for detecting leakage of a vehicle tire|
In order to avoid the risk of false alarms by supplementing the pressure and temperature measurements with a particular monitoring of their change over time, there is proposed a method which includes: converting referenced pressure measurements (Δp) into values of a magnitude calibrated in temperature called converted pressure (Δpt); monitoring for at least two sampling periods (n1, n2) multiples of a measurement period, the change in a difference called significant (Δq) at each measurement moment between the values of the converted pressure (Δpt) and a referenced temperature (Δt). The slope (p(n)) of these variations is monitored and signifies either an absence of leakage or an air leakage at a fast or slow rate..
|Two-arm blood pressure measurement apparatus for automatically measuring two-arm blood pressures at the same time|
Disclosed is an apparatus for measuring blood pressures of both arms, in which an examine simultaneously measures the blood pressures of both arms without getting the arms out of cuffs in the stable and safely posture. The apparatus includes a body (100) mounted on a mounting table such as a desk, a left cuff unit (110) placed at a left upper portion of the body (100), and a right cuff unit (210) placed at a right upper portion of the body (100).
|Systems and methods for a low-profile vascular pressure measurement device|
A measuring system includes an elongated sleeve having a compact diameter configured to be delivered over a standard guide wire and able to be flexibly threaded into a tortuous or diseased vascular pathway of a human. Sensor(s), located at a distal end of the sleeve, measure physiological parameter(s) inside the human.
|Wind turbine measurement system|
A measurement system is provided for a wind turbine having a plurality of rotor blades mounted to a spinner at the front of a nacelle and arranged to rotate in a rotor plane. The measurement system includes a measuring device for determining a pressure at a number of pressure measurement points.
|Reservoir and completion quality assessment in unconventional (shale gas) wells without logs or core|
Embodiments herein relate to a method for recovering hydrocarbons from a formation including collecting and analyzing a formation sample, drilling operation data, and wellbore pressure measurement, estimating a reservoir and completion quality, and performing an oil field service in a region of the formation comprising the quality. In some embodiments, the formation sample is a solid collected from the drilling operation or includes cuttings or a core sample..
A sphygmomanometer measures blood pressure in accordance with an oscillation in an artery wall, resulting from an arterial pulse correspondent with a change in cuff pressure. It comprises a cuff that is connected to the sphygmomanometer main body by a tube, a display unit for displaying the results of blood pressure measurements, and an air supply unit for supplying air to, and thus pressurizing, the cuff, which is detachable from the sphygmomanometer main body.
|Multiple distributed pressure measurements|
Methods, computer programs, and systems for detecting at least one downhole condition are disclosed. Pressures are measured at a plurality of locations along the drillstring.
|Methods and systems for compensation of tubing related loss effects|
A method for ventilating a patient with a ventilator includes consecutively delivering a plurality of substantially equal volume amounts into a closed ventilator circuit during a ventilator self-test, receiving a pressure measurement for each volume delivery, calculating a change in pressure for each volume delivery, consecutively releasing a plurality of substantially equal volume amounts from the closed ventilator circuit during the ventilator self-test, calculating a change in pressure for each volume release, fitting the calculated change in pressure data for volume delivery and volume release to an inhalation non-linear model equation and an exhalation non-linear model equation, respectively, deriving one or more inhalation tubing compliance compensation coefficients from the inhalation non-linear model equation, and deriving one or more exhalation tubing compliance compensation coefficients from the exhalation non-linear model equation.. .
|System and method of cleaning particulate collection devices used in a flue gas processing system|
A system is provided for removing particulate matter from a particulate collection device utilized to collect particulate matter from a flue gas stream. The system includes a pressure vessel for storing a pressurized gaseous medium in an interior area defined by the pressure vessel.
|Tank overflow protection system and method|
A tank overflow protection system and method for measuring process temperature and pressure utilizing one or more piezoresistive pressure transmitters. The piezoresistive pressure transmitter includes a differential pressure sensor and a temperature sensor.
|Blood pressure measurement device to be used on wrist of patient|
A blood pressure measurement device includes a cuff, a display, a distance sensor, an acceleration sensor, and a cpu. The display displays a positional relationship between the patient's heart and the device, which includes a flat screen.
|Steerable guide wire with pressure sensor and methods of use|
A high performance guide wire with a pressure sensor for measuring blood pressure, may utilize a single electrical lead connected to the guide wire. An integrated circuit, powered by the single electrical connection on the guide wire, may interface with the pressure sensor, and may convert pressure information to an encoded signal.
|Remote seal pressure measurement system for subsea use|
A remote seal assembly for subsea applications is provided. The assembly includes an upper housing having a fluid coupling for coupling the remote seal to a process fluid pressure measurement device.
|Method and apparatus for pressure measurement|
Methods and apparatus for measuring pressure in a patient are provided which may include any number of features. One feature is a pressure measurement system comprising a pressure source, a compliant bladder, a catheter in communication with the pressure source, pressure sensors, and a controller configured to determine a pressure within the compliant bladder.
|Sensor and sense line heating device|
A system and method for warming and drying a pressure sensor and sense line transmitting pressure gas from a source of pressure gas to a sensor. A first tube is connected to the source and to the sensor to permit pressure measurement.
|Method and device for determining an error in a pressure measurement in a pressure reservoir|
A method for determining an error in a pressure, which is measured by means of a pressure sensor in a pressure accumulator for accumulating fuel that can be let out of the pressure accumulator via an injection valve and injected into a cylinder, wherein the method comprises: determining at least two 3-tuples of a first pressure, a period of time, and a second pressure, wherein each first pressure is measured by the pressure sensor; wherein after measuring each first pressure, the valve is opened for a period of time; and wherein after the opening of the valve for the period of time, the second pressure is measured by the pressure sensor; and determining the error of the measured pressure from the at least two 3-tuples.. .
|System for detecting the first signs of a malfunction of an aircraft engine valve|
A method and a system for detecting the first signs of malfunction of an aircraft engine valve, including an acquisition device to acquire the output pressure measurements of the valve, and contextual and command data of the valve, a processor to define a set of indicators of the first signs of malfunction, according to the output pressure measurements and the contextual and command data. A set of estimators corresponding to the set of indicators of the first signs of a malfunction, is determined using a previously produced regression model.
|Adjustable finger cuff assembly for a blood pressure measurement device|
Finger cuff adjustability is provided in a measurement cylinder assembly in a unique manner which accommodates the size and space limitations inherent in a mouse-based blood pressure measurement device. The exterior radial surface of the inflatable cuff is adhered to a pull-tab which is longer than the cuff length and has a tab end channeled through a pair of rings, one of which is fixed and the other of which is an adjustment ring.
|Blood pressure measurement apparatus and blood pressure measurement method|
A blood pressure measurement apparatus includes a blood pressure measurement unit, a bio-information acquisition unit, a depth calculation unit, a storage unit and a decision unit. The bio-information acquisition unit continuously acquires bio-information of a subject.
|System and method for delivering a pressurized gas from a cryogenic storage vessel|
A system and method pumps process fluid from a cryogenic storage vessel to a vaporizer, and delivers the fluid as a pressurized gas. The method includes measuring process fluid temperature after the process fluid exits the vaporizer, temporarily suspending operation of the pump when the process fluid temperature is below a threshold temperature, and restarting a suspended pump if at least one predefined enabling condition is satisfied and process fluid pressure is less than a high pressure threshold.
|Real time measurements of fluid volume and flow rate using two pressure transducers|
To provide accurate determinations of volumetric flow rate and thus of total liquid volume transported over a given time period, two pressure transducers are disposed a predetermined distance apart along a conduit. Precise pressure measurement readings are generated from which volumetric flow rate can be derived with accuracy.
|Control system for space heater/hearth|
A fuel burning space or zone heating appliance or heater rated or decorative fireplace (hearth appliance) and a method of operating a heater including a gas valve, a pressure transducer, a second pressure measurement device, a combustion fan, and a control. The control compares the signal from the pressure transducer to the signal from the second pressure measurement device.