163 results about "Measured blood pressure" patented technology

Implantable medical devices (IMDs) for monitoring signs of acute or chronic cardiac heart failure by measuring cardiac blood pressure and mechanical dimensions of the heart and providing multi-chamber pacing optimized as a function of measured blood pressure and dimensions are disclosed. The dimension sensor or sensors comprise at least a first sonomicrometer piezoelectric crystal mounted to a first lead body implanted into or in relation to one heart chamber that operates as an ultrasound transmitter when a drive signal is applied to it and at least one second sonomicrometer crystal mounted to a second lead body implanted into or in relation to a second heart chamber that operates as an ultrasound receiver. The ultrasound receiver converts impinging ultrasound energy transmitted from the ultrasound transmitter through blood and heart tissue into an electrical signal. The time delay between the generation of the transmitted ultrasound signal and the reception of the ultrasound wave varies as a function of distance between the ultrasound transmitter and receiver which in turn varies with contraction and expansion of a heart chamber between the first and second sonomicrometer crystals. One or more additional sonomicrometer piezoelectric crystal can be mounted to additional lead bodies such that the distances between the three or more sonomicrometer crystals can be determined. In each case, the sonomicrometer crystals are distributed about a heart chamber such that the distance between the separated ultrasound transmitter and receiver crystal pairs changes with contraction and relaxation of the heart chamber walls.

A blood pressure monitoring apparatus which continuously estimates and monitors the blood pressure by using the pulse wave propagation time can accurately estimate the blood pressure. While an estimated blood pressure is continuously calculated by using the pulse wave propagation time, the correlation between the pulse wave propagation time and the interval between feature points contained in two consecutive heart beat waveforms of an electrocardiogram is monitored. If the correlation is reversed, the blood pressure is actually measured, and the estimated blood pressure is corrected on the basis of the difference between the estimated blood pressure and actually measured blood pressure.

An apparatus for noninvasive blood pressure measurement having a device for measuring blood pressure values and an acceleration sensor, in particular a two- or three-axis acceleration sensor for measuring movements is provided for measuring and monitoring blood pressure. Using the movement data ascertained by the acceleration sensor, movement artifacts are calculated out of the measured blood pressure values with the aid of a signal processing system.

Methods and systems related to sealing punctures in blood vessels (such as following an angio or PTCA procedure) are disclosed. The position of a distal end of an introducer assembly in tissue is determined using a pressure sensor. The pressure sensor is connected to the proximal end of the introducer assembly. The introducer assembly has a fluid path between its distal end and its proximal end. Measured blood pressure is outputted as an indication of the position of the distal end of the introducer assembly in the tissue. Proper positioning of a seal is confirmed by placing the introducer assembly such that its distal end is in tissue outside a puncture in a blood vessel wall and observing a characteristic of blood at the proximal end of the introducer assembly. In both techniques, a waveform of the blood pressure at the distal end of the introducer assembly may be displayed on a display to provide additional information to a surgeon as to the relative position of the components with respect to various tissues.

Methods and systems related to sealing punctures in blood vessels (such as following an angio or PTCA procedure) are disclosed. The position of a distal end of an introducer assembly in tissue is determined using a pressure sensor. The pressure sensor is connected to the proximal end of the introducer assembly. The introducer assembly has a fluid path between its distal end and its proximal end. Measured blood pressure is outputted as an indication of the position of the distal end of the introducer assembly in the tissue. Proper positioning of a seal is confirmed by placing the introducer assembly such that its distal end is in tissue outside a puncture in a blood vessel wall and observing a characteristic of blood at the proximal end of the introducer assembly. In both techniques, a waveform of the blood pressure at the distal end of the introducer assembly may be displayed on a display to provide additional information to a surgeon as to the relative position of the components with respect to various tissues.

The present invention provides one kind of non-invading blood pressure metering device and method. The non-invading blood pressure metering device includes one main part and one separable part, the main part includes cuff type blood pressure measurer, and the separable part connected electrically to the main part in separable mode includes one non-cuff type blood pressure measurer, and one control unit for controlling the blood pressure measurement with the main part and calibrating the non-cuff type blood pressure measurer based on the measurement result of the cuff type blood pressure measurer to determine the measured blood pressure value. The present invention makes it possible for the user to measure blood pressure with the cuff type blood pressure measurer or with the convenient and fast non-cuff type blood pressure measurer.

The invention relates to an individualized correction method and a device used for continuous measurement and estimation of arterial blood pressure by pulse wave. The PWTT (Pulse Wave Translation Time) of a measured person is recorded in real time, the mean blood pressure BP1 is acquired and recorded, the PWTT1 at the corresponding time is obtained, and the two data are taken as a first set of data. Then, the PWTT of the measured person is continuously monitored and recorded and at each time of monitoring that the absolute value of a difference between the present PWTT value and the PWTT value in the set of data recorded previously is larger than a domain value, an oscillography blood pressure instrument is triggered to measure the present mean blood pressure value BPn of the measured person. In this way, two or more sets of PWTT values and corresponding mean BP values are sequentially acquired in a monitoring time section, and two or more sets of data are taken as calculating data to calculate the individualized regression coefficients a and b of an equation A. The method and the device are easy in operation and implementation, and can enable the calculated regression coefficients to more agree with the actual conditions of measured individuals.

A blood pressure monitor associates information representing measuring time input from a clock with measured blood pressure values so as to store them in a memory. Blood pressure values measured in a morning time zone and blood pressure values measured in an evening time zone are grouped based on the time information associated with the blood pressure values so as to be stored in the memory. A data intra-group average calculating section calculates averages of the blood pressure values in the groups, and a risk calculating section calculates a risk value based on the calculated results of the data intra-group average calculating section.

Measured blood pressure data is stored in a memory in association with information related to a measurement time. In response to manipulation of a manipulation portion (memory recall switch), blood pressure data associated with the measurement time within a prescribed time period (for example, 10 minutes) from the measurement time of reference blood pressure data, among the blood pressure data stored in the memory, is retrieved as specific data. Then, an average value is calculated based on the specific data, and the calculated average value is displayed as an evaluation index.

In a device for treating blood in an extracorporeal circuit, at least one blood pump and at least one filtering device are provided for carrying out the blood treatment. The device includes at least one pressure-measuring element for detecting the blood pressure, which is characterized in that the pressure-measuring element has a sensor unit and an RFID transponder unit.

The invention provides a terminal and a blood pressure measuring method. The terminal comprises a flash lamp, a processor and at least two cameras; a preset distance exists between every two cameras, the flash lamp is used for emitting lamp light with preset frequency under the control of the processor, the cameras are used for collecting photoplethysmography (PPG) signals under the control of the processor, and the PPG signals are the signals which are generated by reflecting the lamp light through the limbs, covering the cameras, of a user and received by the cameras; the processor is used for controlling the flash lamp to emit the lamp light with the preset frequency and controlling the cameras to sequentially collect the PPG signal in the preset frequency, at least one PPG signal collected by each camera is obtained, the pulse-wave propagation velocity is determined according to the PPG signals collected by the cameras, and the measured blood pressure of the user is obtained according to the pulse-wave propagation velocity. The terminal and the blood pressure measuring method can improve the accuracy of the measured blood pressure.

The invention discloses an intelligent massage chair which is provided with a seat, a massage mechanism and a control unit, wherein various massage modes are formed by the massage mechanism. The intelligent massage chair is characterized in that a cardiotachometer, a sphygmomanometer and a spirometer are arranged on the seat, a preset database with the combination of the data of the heart rate, the blood pressure and the vital capacity is formed in the control unit, each group of data in the database is correspondingly matched with the massage modes, and the corresponding groups of data in the database are automatically matched by the control unit according to the measured heart rate, the measured blood pressure and the measured vital capacity so as to select the corresponding massage modes. According to the massage chair disclosed by the invention, the proper massage modes are automatically selected according to the constitutions of patients, so that the massage chair has a proper treatment effect to users.

The present invention provides a wrist-worn blood pressure monitor that is worn around a wrist. The wrist-worn blood pressure monitor according to the present invention includes a wrist cuff including a wrist strap so as to be worn around a wrist, a sensor provided at the wrist cuff in order to measure blood pressure, and a tightener provided at the wrist cuff in order to selectively tighten the wrist cuff so that the wrist cuff compresses the wrist. According to the present invention, a user is able to conveniently measure his / her blood pressure whenever there is a need to measure the blood pressure, and the accuracy of the measured blood pressure is increased since the wrist-worn blood pressure monitor is securely tightened around the wrist.

A sensor is pressurized adjustably against a patient's wrist and detects a pressurized pulse wave of a radial artery in a noninvasive manner so as to measure blood pressure on an arm band wound around the patient's predetermined portion. A CPU calculates indices reflecting a reflecting phenomenon of a pulse wave as organism information different from the blood pressure based on the detected pulse waveform, and relates the measured blood pressure value with calculated indices so as to display them on an indicator. A doctor checks displayed contents so as to clearly understand a state of a circulatory system represented by a correlation between the patient's blood pressure and the indices so as to be capable of obtaining information which supports a diagnosis and prescription quickly.

A blood pressure monitoring apparatus which continuously estimates and monitors the blood pressure by using the pulse wave propagation time can accurately estimate the blood pressure. While an estimated blood pressure is continuously calculated by using the pulse wave propagation time, the correlation between the pulse wave propagation time and the interval between feature points contained in two consecutive heart beat waveforms of an electrocardiogram is monitored. If the correlation is reversed, the blood pressure is actually measured, and the estimated blood pressure is corrected on the basis of the difference between the estimated blood pressure and actually measured blood pressure.

The invention discloses a smart watch capable of detecting blood pressure. The smart watch comprises a watch body having a smart component. The watch body is internally provided with a control mainboard, a display component and a measurement component. The measurement component comprises a blood pressure detection chip. The lower end surface of the watch body is provided with a watchband. A plane is formed at the connecting part of the watchband and the watch body. The external side surface of the lower end of the plane is provided with a silicone gasket. The blood pressure detection chip is installed in the silicone gasket, and the signal output end of the blood pressure detection chip is connected with the control mainboard. The plane is internally provided with a watchband tightening component which is controlled by the control mainboard. The lower end surface of the silicone gasket is contacted with the human skin, and blood pressure of the human body is detected by the blood pressure detection chip and blood pressure signals are transmitted to the control mainboard. One retractable watchband is used and then flexible adjustment of the size of the watchband can be realized so that the conventional connecting buckle structure is replaced, the blood pressure detection chip is arranged in the watchband, the detection sensitivity of the blood pressure detection chip is adjusted and controlled in a tightening way and thus the detection data are enabled to be more accurate.

A sensor is pressurized adjustably against a patient's wrist and detects a pressurized pulse wave of a radial artery in a noninvasive manner so as to measure blood pressure on an arm band wound around the patient's predetermined portion. A CPU calculates indices reflecting a reflecting phenomenon of a pulse wave as organism information different from the blood pressure based on the detected pulse waveform, and relates the measured blood pressure value with calculated indices so as to display them on an indicator. A doctor checks displayed contents so as to clearly understand a state of a circulatory system representedbyacorrelationbetweenthepatient'sbloodpressure and the indices so as to be capable of obtaining information which supports a diagnosis and prescription quickly.

The invention relates to a blood pressure measuring device and a blood pressure recognizing device. The blood pressure measuring device comprises a sensor device, a pulse characteristic data extraction unit, a pressure data extraction unit, a storage unit and a blood pressure determination unit, wherein measured blood pressure data is not influenced by shrinkage and expansion of a living body. The blood pressure recognizing device comprises a blood pressure measuring device, a reference data storage unit, a comparing unit and a display device, wherein the display device is used for displaying output results which are compared by the comparing unit; and data representing the blood pressure is not displayed on the display device, or comparison results and the data representing the blood pressure are not displayed at the same time; the blood recognizing device is particularly applicable to non-medical persons and old people, and has the advantage of promoting patients to see a doctor. The blood pressure measuring device and the blood pressure recognizing device are particularly suitable for monitoring blood pressure continuously and dynamically.

The invention relates to an analyzing system of pulse diagnosis of the traditional Chinese medicine and a method thereof, which can carry out quantitative analysis on the pulse condition change in pulse diagnosis, in particular to the quantitative analysis on the components of the pulse condition in traditional Chinese medicine, namely 'position', 'rate', 'shape' and 'force', thereby greatly improving the accuracy of the pulse diagnosis. The analyzing system of the invention comprises a pulse wave signal collecting device and a signal processing unit, wherein, the pulse wave signal collecting device is used for collecting and generating a blood pressure signal and an ECG signal and the signal processing unit is used for receiving and analyzing the continuous blood pressure signal and the ECG signal; the implement of the signal processing unit comprises that: the position parameter of the measured blood pressure signal is constructed; the heart rate parameter calculated from the blood pressure signal or the ECG signal is constructed; a blood pressure wave parameter analyzed from the blood pressure is constructed; the spectrum analysis parameter is constructed on arterial pressure variability (APV) and heart rate variability (HRV); quantitative indexes based on the parameters are used for defining the components of the pulse condition of the traditional Chinese medicine.

Described herein are methods for monitoring or modulating an immune system in a subject; treating, reducing or monitoring inflammation; monitoring blood pressure; treating hypertension; or administering or adjusting a therapy for inflammation or hypertension in a patient by electrically stimulating the splenic nerve or detecting splenic nerve activity using an implanted medical device. Also described herein are implantable medical devices for performing such methods. The implanted medical device includes an ultrasonic transducer configured to receive ultrasonic waves and convert energy from the ultrasonic waves into an electrical energy that powers the device, two or more electrodes in electrical communication with the ultrasonic transducer that are configured to electrically stimulate a splenic nerve or detect a splenic nerve activity, and optionally a splenic nerve attachment member.

The invention provides a blood pressure measuring device. The device comprises a host machine shell, a power supply unit, a pressure measuring unit, an analog to digital (A / D) converting unit, a microprocessor, a first external port and a second external port, wherein the pressure measuring unit is used for measuring the blood pressure of a human body; the A / D converting unit is connected with the pressure measuring unit and used for converting a measured blood pressure analog signal into a digital signal; the microprocessor is connected with the A / D converting unit and is used for receiving and processing the digital signal; the host machine shell is provided with a cuff insertion hole; the first external port can be connected with a mobile phone and is used for performing data exchange and control; and the second external port can be connected with an adaptor, is used for charging the blood pressure measuring device and can charge the mobile phone which is connected with the first external port. Therefore, with the structure, the blood pressure measuring device is more convenient to use, has high expansion performance, saves consumption cost for a user and saves space and load for use on a trip.

The present invention relates to one electronic sphygmomanometer, which can output in standard figure format and perform the comparison, holding and repeated judgment of measured blood pressure. The electronic sphygmomanometer includes a cuff, an inflator, a deflator, a pressure signal converter, a pulse detector, a cuff pressure detector, a figure generator, a blood pressure decider, a display and a printer. The electronic sphygmomanometer capable of outputting standardized figure can complete comparison in different blood pressure measuring method and comparison of blood pressure values measured by different users.

An electronic device includes housing, a user interface disposed in a first part of the housing, a photoplethysmogram (PPG) sensor disposed to be exposed through a second part of the housing, the PPG sensor configured to calculate a blood pressure value while contacting a portion of a body, at least one sensor, a wireless communication circuit disposed in the interior of the housing, a processor disposed in the interior of the housing, and operatively connected to the user interface, the PPG sensor, the at least one sensor, and the wireless communication circuit, and a memory operatively connected to the processor, wherein the memory stores instructions that, when executed by the processor, control the electronic device to: receive first data from the at least one sensor, receive second data from the PPG sensor based at least in part on the received first data, determine a pulse arrival time (PAT) value, a heart rate (HR) value, and a pulse transit time (PTT) value from the second data, calculate a first blood pressure value (BP1) and a second blood pressure value (BP2) by applying the determined values to pulse wave velocity (PWV) algorithms of Equations 1 and 2, wherein BP1≅a1PAT+b1HR+c1 . . . Equation 1, BP2≅a2 ln(PTT)+b2 . . . Equation 2 in Equations 1 and 2, a1, a2, b1, b2, and c1 are constant values for matching blood pressure values measured during calibration with blood pressure values measured by a cuff hemodynamometer, determine a calibration time point based at least in part on a difference between the first blood pressure value and the second blood pressure value, and provide guide information related to the calibration time point through the user interface based at least in part on the determination.

The invention provides an automatic film changing tourniquet and automatic film changing support stand which comprises: a support stand hygiene film driving wheel which rotates actively to drive hygiene films to move and realizes the replacement of hygiene films; a support stand hygiene film driven wheel which is used for storing hygiene films; tourniquet hygiene film driving wheels which rotate actively to drive hygiene films to move and realize the replacement of hygiene films; tourniquet hygiene film driven wheels used for storing hygiene films; air bags provided with an air inlet and an air outlet each and used for pulse pressing; limit switches used for controlling limit blocks; the limit blocks used for limiting single-side tourniquets; moving guide rails used for movement of the single-side tourniquets; blood pressure sensor devices which are used for measuring blood pressure and controlling air inlet and outlet of the air bags.

Blood pressure data read from a storage unit is displayed using a blood pressure level bar divided into rectangular segments, and a numerical value of data in a display unit. During the blood pressure measurement, the blood pressure level bar and the numerical value are displayed according to the rise and fall of the detected blood pressure in the display unit. A reference value for determining high blood pressure is displayed in association with the blood pressure level bar. The person to be measured can grasp the blood pressure section to which the measured blood pressure corresponds based on the reference value. The person to be measured can readily grasp the transition of the blood pressure value with the blood pressure level bar even if the size of the display region of the display unit is small.

An apparatus for determining the blood pressure of a patient which allows the patient to first measure his measured blood pressure using a blood pressure measuring device and then, at a later time, estimate his current blood pressure using a blood pressure calculating device that includes a mathematical model for estimating blood pressure based on a current change in blood pressure induced by a heart beat and the previously measured blood pressure. The apparatus includes a transmitter device that detects the presence of a blood pressure calculating device connected to or in proximity of the blood pressure measuring device and transmits the previously measured blood pressure value to the blood pressure calculating device.

Hidden high blood pressure patients can not be identified by once blood pressure measuring, and the measuring is easily disturbed by emotion and motion states. In ideal blood pressure control, dynamic blood pressure in 24 hours needs to be monitored, the dynamic blood pressure has more advantages compared with the accidentally measured blood pressure, more blood pressure data can be obtained, the change rule of the blood pressure in the whole day can be practically reflected, and the measuring on the dynamic blood pressure has more meanings, and can be used for guiding pharmacy and predicting the seizure of cardiovascular diseases. The current domestic blood pressure monitor in the market is mainly mercurial and electronic blood pressure monitors, which are not convenient for the 24-hour blood pressure monitoring. For overcoming the defects, the invention provides the super-portable intelligent dynamic blood pressure detector, comprising a measuring unit and a smartphone; the measuring unit has no air pipe connection, adopts arm-type integral measuring, has no need of temporary mounting and is suitable for dynamic measuring; the smartphone is connected with the measuring unit by a wireless Bluetooth for transmitting a control command and receiving measuring data.

An arteriosclerosis inspecting apparatus including an information obtaining device which obtains information that is related to a velocity at which a pulse wave propagates in a living subject, a blood-pressure measuring device which measures a blood pressure of the subject, a heart-rate measuring device which measures a heart rate of the subject, a pre-ejection-period measuring device which measures a pre-ejection period from a time of starting of contraction of the heart of the subject to a time of starting of ejection of blood from the heart, an ejection-time measuring device which measures an ejection time from the time of starting of ejection of blood from the heart to a time of ending of ejection of blood from the heart, and an arteriosclerosis-inspection-related-augmentation-index determining means for determining an arteriosclerosis-inspection-related augmentation index of the subject, based on the obtained pulse-wave-velocity-related information, the measured blood pressure, the measured heart rate, the measured pre-ejection period, and the measured ejection time, according to a predetermined relationship between (A) (a1) pulse-wave-velocity-related information, (a2) blood pressure, (a3) heart rate, (a4) pre-ejection period and (a5) ejection time, and (B) arteriosclerosis-inspection-related augmentation index.

The invention relates to a medical appliance for detecting blood pressure, in particular to an ambulatory blood pressure monitor. Due to a blood pressure aberration rate analysis module arranged on a traditional blood pressure monitor, the ambulatory blood pressure monitor can perform statistical analysis on blood pressure value to obtain the fluctuation of the blood pressure so as to provide the blood pressure aberration parameter within a time space (24h), so that the blood pressure monitor is beneficial for doctors to adopt the most optimized treatment solution and evaluate the risk of hypertension complications.