47 results about "Blood pressure fluctuation" patented technology

In blood pressure monitoring apparatus which continuously estimates and monitors blood pressure by using the pulse wave propagation time, blood pressure fluctuation can be accurately estimated. If both blood pressure estimated from the pulse wave propagation time and a waveform parameter obtained from the accelerated pulse wave have abnormal values, it is determined that the blood pressure is truly fluctuating, and blood pressure measurement by another method, e.g., blood pressure measurement using a cuff is performed.

A method and device for measuring the blood pressure of artery and its personalized correction technique are disclosed. A series of the pressure values (P) for sleeve band and the time delay values (Tk) of the relative remote Ke's sounds are obtained. The function relation Tk(P) between said pressure change and sound delay is in turn obtained. Measuring a Tk relative to a P can calculate out the blood pressure change. A regression equation for continuous measurements of arteral blood pressure is used to obtain a personalized correction coefficient.

In blood pressure monitoring apparatus which continuously estimates and monitors blood pressure by using the pulse wave propagation time, blood pressure fluctuation can be accurately estimated. If both blood pressure estimated from the pulse wave propagation time and a waveform parameter obtained from the accelerated pulse wave have abnormal values, it is determined that the blood pressure is truly fluctuating, and blood pressure measurement by another method, e.g., blood pressure measurement using a cuff is performed.

A blood pressure measurement device includes a measurement fluid bag, a sensor for measuring a change in internal pressure of the measurement fluid bag, a blood pressure measurement unit for calculating a blood pressure value based on the change in internal pressure of the measurement fluid bag obtained by the sensor, an environmental information measurement unit for measuring environmental information in association with a calculation process of the blood pressure value, a storage unit for storing a measurement result, a recording processing unit for storing the calculated blood pressure value and the environmental information in the storage unit in association with each other and a notification unit for notifying a blood pressure fluctuation with respect to an environmental fluctuation based on the blood pressure value and the environmental information.

An ambulatory blood pressure joint detection and analysis system comprises a hardware system and a software analysis system. The hardware system is composed of a blood pressure and motion measurement front end device, an external terminal device and a remote server. The software analysis system collects data of the blood pressure, motion and social contact through the hardware system. According to an ambulatory blood pressure model and an algorithm, the system is operated in an application layer. The ambulatory blood pressure joint detection and analysis system has the advantages that various sensors and data sources are used and ambulatory detection and analysis of the blood pressure are achieved with lower cost; motion modes and social contact behaviors which lead to blood pressure fluctuation are reasonably distinguished and a user is guided to avoid high-risk behaviors; the medicine use effect is reasonably analyzed and differentiation of influences, caused by the medicine effect and other factors, on the blood pressure fluctuation is facilitated.

A method and an apparatus for indirect, quantitative estimation of beat-to-beat arterial blood pressure utilizing individualized rectifying technology. A function of TK=H(P) that describes the relationship between Korotkoff's sound delay time Tk and cuff pressure P is obtained by measuring different cuff pressures P and the corresponding Korotkoff's sound delay times Tk in a Korotkoff's sound sensor that is distal to the cuff. Keeping the cuff pressure at a constant value Pm, the blood pressure change can be calculated by using the Korotkoff's sound delay time Tkm according to the function of Tk=H(P). The invention can measure beat-to-beat arterial blood pressures indirectly. The technology can be applied to obtain individualized coefficients of a regress equation for continuous arterial blood pressure measurement by the instantaneous blood pressure fluctuation, and the technology makes the rectifying technique more safe, effective, and less erroneous and makes the operation of noninvasive continuous blood pressure measurement for long times more practical.

The invention discloses a distributed-type cardiovascular system simulation model. The distributed-type cardiovascular system simulation model is characterized by comprising a cardiac four-cavity sub-model, a pulmonary circulation sub-model, a blood vessel network sub-model, a reflection control sub-model and a vein collapse sub-model, the cardiac cavity sub-model is provided with a left ventricle connected with a left atrium and a right ventricle connected with a right atrium, the left ventricle and the right ventricle drive systemic circulation and pulmonary circulation, the blood vessel network sub-model comprises an arterial system, a peripheral circulation system and a venous system which are connected sequentially, an input end of the arterial system is connected with an output end of the left ventricle, an output end of the venous system is connected with an input end of the right ventricle, the vein collapse sub-model is connected with another input end of the venous system, an output end of the arterial system is connected with the reflection control sub-model through a carotid artery, and the reflection control sub-model controls blood pressure fluctuation of a model system through heart rate and heart contractility effectors arranged on the cardiac four-cavity model and arterial resistance, venous volume and vascular tone effectors arranged in the blood vessel network model.

The invention relates to a remote blood pressure measuring system and an implementation method thereof. The system comprises a blood pressure measuring device, a monitoring platform server and a user terminal. The blood pressure measuring device is used for obtaining the actual pulse parameters of a testee and sending the actual pulse parameters to the monitoring platform server and used for receiving a control instruction to carry out preset pressurization and decompression operation on the testee. The monitoring platform server is used for receiving and storing the actual pulse parameters, calculating the average blood pressure value, the blood pressure fluctuation quantity and the heart rate fluctuation quantity through a statistic model, giving an alarm message to the user terminal when the average blood pressure value is larger than a blood pressure threshold value if the blood pressure fluctuation quantity or the heart rate fluctuation quantity is larger than a corresponding fluctuation threshold value, obtaining a control instruction returned back by the user terminal and forwarding the control instruction. By the adoption of the remote blood pressure measuring system and the implementation method thereof, the actual pulse parameters of the testee can be easily measured, the testee can conveniently know the blood pressure and heart rate unusual conditions, and the blood pressure of the testee can be effectively decreased.

The invention relates to a blood-pressure-treating traditional Chinese medicine composition, and specifically relates to a nerve-soothing blood-pressure-reducing traditional Chinese medicine tea. The invention provides the tea aiming at solving a series of health problems caused by increased blood pressure due to higher mental dysfunction caused by fast life pace, increased work pressure, and inappropriate diet and rest. The nerve-soothing blood-pressure-reducing traditional Chinese medicine tea is composed of the raw materials, by weight: 30-120 parts of mulberry leaves, 25-125 parts of hawthorn leaves, 20-100 parts of eucommia leaves, 20-100 parts of Japanese pogodatree flower, 15-75 parts of white chrysanthemum, 10-50 parts of Szechwan lovage rhizome, 10-50 parts of obtuseleaf senna seed, and 10-50 parts of ginkgo leaves. When the nerve-soothing blood-pressure-reducing tea provided by the invention is taken for a long time, human body functioning can be gradually improved. The tea has the functions of human central nervou regulating, fatigue relieving, sleep promoting, body immunity enhancing, human body self-regulation enhancing, and blood pressure fluctuation suppressing.

The invention provides a device and a method for measuring the blood pressure value of a human body when the human body is in a stable state, and relates to the application field of electronic technology and computers. The device comprises a data processing module, an input module, an output module and a sphygmomanometer control module. The method includes the steps that a measurer inputs a 'measurement beginning' instruction through the input module; and the data processing module drives a sphygmomanometer to measure through the sphygmomanometer control module, every measurement result of the sphygmomanometer is read, and required measurement times are dynamically judged according to the blood pressure fluctuation range of the measurer, the measurer is guided to be measured repeatedly according to a judgment result, a final result of blood pressure measurement is automatically calculated at this time according to mutual relation of data obtained from the repeated measurement, and finally, the final measurement result is outputted through the output module. The measurement time of measurers with stable blood pressure fluctuation can be shortened, and the accuracy of measurement results of measurers with high blood pressure fluctuation can be correspondingly improved by dynamically increasing the measurement times.

A diagnosis support apparatus for physiological monitoring includes a data acquisition device for obtaining information of a heartbeat waveform of an examinee. An extractor extracts blood pressure fluctuations based on changes of blood pressure of the examinee from the heartbeat waveform. A guide information output device outputs guide information for induction of respiratory cycle time of breathing of the examinee according to a period of the blood pressure fluctuations. An arithmetic processor obtains a parameter value related to intensity of the heartbeat waveform. A determiner determines occurrence or non-occurrence of a problem in autonomic activity in an autonomic nervous system in the examinee according to the parameter value. A result output device outputs a determination result of the determiner. Also, the determiner performs the determining according to a maximum of the parameter value within a predetermined first period.

The invention discloses an arterial-venous blood flow divider capable of controlling blood pressure fluctuation quickly and effectively in real time. The blood flow divider can divide the arterial blood flow to the vein when the blood pressure rises so as to prevent further rise of the blood pressure and achieve an aim of controlling the blood pressure fluctuation. The blood flow divider comprises a tubular component and a flow control component, wherein the flow control component is arranged in the tubular component; a through hole along the axial direction of the tubular component is formed in the flow control component; the size of the through hole changes in real time along with the magnitude of pressure, and the blood flow rate changes in real time along with the size change of the through hole; if the through hole becomes larger, the blood flow rate increases along; and if the through hole becomes smaller, the blood flow rate decreases along. Furthermore, the through hole has an open threshold; when the blood pressure is lower than or equal to the threshold, the through hole is kept in a minimum state; and when the blood pressure is higher than the threshold, the through hole becomes larger to be opened.

When a start timing of an individual measurement control arrives, the pressurization control is started and a maximum blood pressure (blood pressure characteristic value) is estimated based on blood pressure characteristics information obtained during the pressurization control. The presence or absence of blood pressure fluctuation is determined based on the maximum blood pressure estimated this time and the (estimated) maximum blood pressure up to the previous times. The actual measurement process of the blood pressure is executed when determined that the blood pressure fluctuation is present. The actual measurement process is canceled when determined that the blood pressure fluctuation is absent.

The invention discloses an ambulatory blood pressure feature extraction method for obstructive sleep apnea syndrome (OSAHS). The method comprises the following steps: extracting the following parameters from 24-hour ambulatory blood pressure monitoring data of a subject, comprising: at least a part of: nighttime blood pressure rise effective height, nighttime blood pressure rise maximum height, nighttime blood pressure rise duration, nighttime blood pressure rise slope, nighttime blood pressure fluctuation frequency, nighttime blood pressure base line upper area, nighttime blood pressure base line lower area, nighttime blood pressure drop effective height, nighttime blood pressure drop maximum depth, nighttime blood pressure drop duration, a nighttime blood pressure decrease slope, a nighttime blood pressure secondary increase duration, a nighttime blood pressure secondary increase slope, a nighttime blood pressure fluctuation frequency, a morning peak blood pressure increase maximum height, a morning peak blood pressure increase duration, a morning peak blood pressure increase slope, a morning peak blood pressure decrease duration, a morning peak blood pressure decrease slope, and an area on a morning peak blood pressure baseline.

A method and apparatus for indirect, quantitative estimation of beat-to-beat arterial blood pressure utilizing the individualized rectifying technique. A function TK=H(P) that describes the relationship between Korotkoff's sound delay time Tk and cuff pressure P is obtained by measuring the different cuff pressure P and corresponding Tk in the Korotkoff's sound sensor that is distal to the cuff. Keep the cuff pressure at a constant value Pm, the blood pressure variance can be calculated using the Korotkoff's sound delay time Tkm, according to the function Tk=H(P). The invention can measure the beat-to-beat artery blood pressure indirectly. The technique can be applied to obtain individual coefficient of regress equation for continuous arterial blood pressure measurement by the instantaneous blood pressure fluctuation, which make the rectifying technique more safe, effective and less erroneous. The technique makes the operation of noninvasive continuous blood pressure measurement for long time more practical.

The invention relates to a ramipril external-application slow-release transdermal patch and an application thereof. The external-application patch is used for treating hypertension with ramipril as a main drug. According to the ramipril external-application slow-release transdermal patch, as transdermal absorption is achieved, drugs are evenly released, the effect is mild and durable, and blood pressure fluctuation caused by oral medication is avoided. The ramipril external-application slow-release transdermal patch directly acts on the skin and does not pass through the gastrointestinal tract, the first-pass effect of the liver is avoided, adverse effects are reduced, and the occurrence rate of the adverse effects is reduced. Patient compliance is good, and use and carrying are convenient.

The present invention designs a hypertensive critical illness advanced discovery method and device. A waterproof photoelectric pressure measurement bracelet is taken as a blood pressure detection tool, a bracelet blood pressure meter is internally provided with a Bluetooth communication module being in wireless communication with a mobile phone, the mobile phone is internally provided with a special APP, the APP is internally provided with a timing wireless connection bracelet configured to collect detection data stored in the bracelet blood pressure meter, and the hypertensive critical illness advanced discovery device further comprises a blood pressure analysis and prediction alarm unit. The method comprises the steps of: data correction of the bracelet blood pressure meter, blood pressure peak and fluctuation analysis, day and night blood pressure ratio analysis, 7-day average blood pressure fluctuation analysis, combination prediction analysis of two methods, blood pressure value early warning of a dangerous time frame and timing operation of automatic prompting. The hypertensive critical illness advanced discovery method and device do not need a complex initialization processand do not need to upload data and can protect patients' privacy, the program can be automatically operated in order after the system is configured, such as synchronous data, blood pressure fluctuation analysis, blood pressure value prediction of the dangerous time frame, according to the defined format, patient prompting is performed, and therefore, the hypertensive critical illness advanced discovery method and device are simple to operate, is suitable for families, and is specially suitable for the middle aged and elderly people.

The invention discloses a device of extracorporally imitating blood pressure fluctuation rising and an application method and an application, and relates to the field of medical research tools. An imitation blood pressure pump and an imitation blood pressure fluctuation pump are respectively arranged, so that imitation blood pressure and blood pressure fluctuation change are suffered from the adjustment of different regulating units. Separating adjusting effects of the imitation blood pressure and blood pressure fluctuation change are achieved. The device of extracorporally imitating blood pressure fluctuation rising solves the problem that no proper extracorporal model for studying the blood pressure fluctuation rising exists.

A method and apparatus for indirect, quantitative estimation of beat-to-beat arterial blood pressure utilizing the individualized rectifying technique. A function TK=H(P) that describes the relationship between Korotkoff's sound delay time Tk and cuff pressure P is obtained by measuring the different cuff pressure P and corresponding Tk in the Korotkoff's sound sensor that is distal to the cuff. Keep the cuff pressure at a constant value Pm, the blood pressure variance can be calculated using the Korotkoff's sound delay time Tkm, according to the function Tk=H(P). The invention can measure the beat-to-beat artery blood pressure indirectly. The technique can be applied to obtain individual coefficient of regress equation for continuous arterial blood pressure measurement by the instantaneous blood pressure fluctuation, which make the rectifying technique more safe, effective and less erroneous. The technique makes the operation of noninvasive continuous blood pressure measurement for long time more practical.

The invention relates to the technical field of intelligent wearing, and discloses an ambulatory blood pressure real-time monitoring device and system and a storage medium, and an ambulatory blood pressure real-time monitoring program in the ambulatory blood pressure real-time monitoring device is configured to realize the following steps: carrying out real-time calibration on collected ambulatory blood pressure at a preset monitoring position of a monitored user; obtaining the calibrated ambulatory blood pressure; inputting the blood pressure influence item of the monitored user into a preset health model to obtain a blood pressure fluctuation range corresponding to the monitored user; judging whether the calibrated ambulatory blood pressure meets a preset blood pressure standard or not according to the blood pressure fluctuation range corresponding to the monitored user; and if not, sending out preset warning information. By inputting the blood pressure influence item of the monitored user into the preset health model established on the basis of the personalized health database, whether the calibrated ambulatory blood pressure meets the preset blood pressure standard or not is judged on the basis of the obtained blood pressure fluctuation range of the monitored user, and personalized precise ambulatory blood pressure monitoring of the monitored user is achieved.

A blood pressure data processing apparatus includes: a blood pressure surge acquisition unit configured to acquire a blood pressure surge; a blood pressure waveform extraction unit configured to extract a blood pressure waveform of one or more heartbeats from the blood pressure surge; a waveform feature amount calculation unit configured to calculate a waveform feature amount for each blood pressure waveform of one heartbeat isolated from the blood pressure waveform of one or more heartbeats, or for an average blood pressure waveform obtained by averaging the blood pressure waveforms of one heartbeat isolated from the blood pressure waveform of one or more heartbeats; and a causal factor identification unit configured to identify a causal factor of the blood pressure surge from among predetermined causal factors, based on the waveform feature amount.

The invention provides a blood pressure measurement method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a video stream collected by camera equipment; extracting a face image of the target object from multiple frames of images of the video stream; body archive data matched with the target object are searched from a preset archive library based on the face image; performing time domain processing and frequency domain processing on the basis of image information of multiple frames of face images extracted from the multiple frames of images to obtain a heart rate estimation value of the target object; and estimating the blood pressure value of the target object based on the body file data and the heart rate estimation value to obtain a blood pressure measurement result. The heart rate estimation value used for representing the blood pressure fluctuation condition can be determined based on the image processing mode, then accurate measurement of the related blood pressure value can be achieved in combination with the body file data, the measurement result is more accurate, professional equipment is not needed, real-time measurement can be conducted anytime and anywhere, and practicability is better.

The invention relates to a novel infusion pressurizing and refrigerating side duct dosing device. The novel infusion pressurizing and refrigerating side duct dosing device comprises a case body and a case cover; the inside of the case body is provided with a thrombolytic drug bottle, a vacuum pump, a variable speed motor, a rolling pressure roller, a computer control chip and a opposite-type drop monitoring sensor, wherein the thrombolytic drug bottle is arranged on one side of the internal top of the case body, the bottom of the thrombolytic drug bottle is connected with a movable thrombolytic drug injecting button which is arranged on the upper wall of the case body, and a thermal insulating layer is arranged outside the thrombolytic drug bottle and fixed at the top of the case body; the vacuum pump is arranged under the thrombolytic drug bottle and right opposite to the bottleneck of the thrombolytic drug bottle; the variable speed motor is arranged under the vacuum pump and connected with the vacuum pump; the rolling pressure roller is arranged at the bottom of the case body under the variable speed motor; the variable speed motor is also connected with the central axle of the rolling pressure roller; a section of infusion pipe connected with the lower portion of a drip cup is arranged between the rolling pressure roller and the bottom of the case body. The novel infusion pressurizing and refrigerating side duct dosing device solves the problem of thrombogenesis due to infusion cease caused by blood pressure fluctuation during intravascular intervention.

The invention discloses a pneumatic type blood collecting system, and relates to the field of medical instruments and apparatuses. The pneumatic type blood collecting system comprises a puncture needle, a three-way connector, a blood filter, an anticoagulant puncture outfit, a blood donor pressure detecting connector, a saline solution puncture outfit, a blood component separator, a blood component collecting container, a system pressure detecting connector, a system pressure detector, a pressure buffering device, an air pump and a main controller. The invention further discloses a use method of the pneumatic type blood collecting system. The defects that when blood is collected by a peristaltic pump in a peristalsis mode, blood cell rupture caused by extrusion, hemolysis caused by high temperature, pipeline rupture caused by extrusion, high blood donor blood pressure fluctuation caused by peristalsis, complicated operation and the like are easily generated can be overcome, the running reliability of the blood component collecting device can be improved, the blood collecting safety is ensured, and the comfort of a blood donor is improved.

The invention discloses a distributed-type cardiovascular system simulation model. The distributed-type cardiovascular system simulation model is characterized by comprising a cardiac four-cavity sub-model, a pulmonary circulation sub-model, a blood vessel network sub-model, a reflection control sub-model and a vein collapse sub-model, the cardiac cavity sub-model is provided with a left ventricle connected with a left atrium and a right ventricle connected with a right atrium, the left ventricle and the right ventricle drive systemic circulation and pulmonary circulation, the blood vessel network sub-model comprises an arterial system, a peripheral circulation system and a venous system which are connected sequentially, an input end of the arterial system is connected with an output end of the left ventricle, an output end of the venous system is connected with an input end of the right ventricle, the vein collapse sub-model is connected with another input end of the venous system, an output end of the arterial system is connected with the reflection control sub-model through a carotid artery, and the reflection control sub-model controls blood pressure fluctuation of a model system through heart rate and heart contractility effectors arranged on the cardiac four-cavity model and arterial resistance, venous volume and vascular tone effectors arranged in the blood vessel network model.

The invention relates to a pharmaceutical composition for treating hypertension and a preparation method thereof and aims to overcome the defects of the preparation method of a compound reserpine composition. The compound reserpine pharmaceutical composition comprises various active components such as reserpine, hydrochlorothiazide, vitamin B6, potassium chloride and rutin. The prepared compound reserpine pharmaceutical composition has the advantages that the composition is small in toxic and side effects, quick in action and lasting in medicine effect, blood pressure fluctuation is small during blood pressure lowering, long-term treatment of a patient is facilitated, medicine use safety is increased, and medicine use compliance is improved; in addition, the dissolution difference of the compound reserpine pharmaceutical composition can be lowered evidently, and sample stability and batch-to-batch evenness can be increased.

A blood pressure data processing apparatus includes: a blood pressure data acquisition unit to acquire blood pressure data; a blood pressure surge candidate detection unit detecting a blood pressure waveform that is a blood pressure surge candidate based on the blood pressure data; a blood pressure waveform extraction unit extracting a blood pressure waveform of one or more heartbeats; a waveform feature amount calculation unit calculating a waveform feature amount for each blood pressure waveform of one heartbeat isolated from the blood pressure waveform of one or more heartbeats, or for an average blood pressure waveform obtained by averaging the blood pressure waveforms of one heartbeat isolated from the blood pressure waveform of one or more heartbeats; and a blood pressure surge identification unit identifying whether or not the blood pressure waveform that is the blood pressure surge candidate is a blood pressure surge based on the waveform feature amount.

The invention discloses an arterial-venous blood flow divider capable of controlling blood pressure fluctuation quickly and effectively in real time. The blood flow divider can divide the arterial blood flow to the vein when the blood pressure rises so as to prevent further rise of the blood pressure and achieve an aim of controlling the blood pressure fluctuation. The blood flow divider comprises a tubular component and a flow control component, wherein the flow control component is arranged in the tubular component; a through hole along the axial direction of the tubular component is formed in the flow control component; the size of the through hole changes in real time along with the magnitude of pressure, and the blood flow rate changes in real time along with the size change of the through hole; if the through hole becomes larger, the blood flow rate increases along; and if the through hole becomes smaller, the blood flow rate decreases along. Furthermore, the through hole has an open threshold; when the blood pressure is lower than or equal to the threshold, the through hole is kept in a minimum state; and when the blood pressure is higher than the threshold, the through hole becomes larger to be opened.

The invention discloses a traditional Chinese medicine composition and application thereof. The traditional Chinese medicine composition comprises the following components in parts by weight: 600 parts of processed fallopia multiflora, 400 parts of epimedium herb, 600 parts of cuscuta chinensis, 400 parts of polygonum cuspidatum, 400 parts of ligusticum chuanxiong hort and 400 parts of radix paeoniae alba. The traditional Chinese medicine composition is prepared by boiling the epimedium herb, the cuscuta chinensis, and the radix paeoniae alba with water, performing alcohol sedimentation with ethanol, performing backflow extraction on the processed fallopia multiflora, the polygonum cuspidatum and the ligusticum chuanxiong hort with 50-70% ethanol, combining the alcoholic extract with the alcohol sedimentation supernate, performing vacuum drying, uniformly mixing with lactose, magnesium stearate, micro-powder silica gel and aspartame, and performing dry pressing pelletization. The traditional Chinese medicine composition disclosed by the invention is capable of tonifying kidney and stimulating spontaneous emission as well as nourishing yin and promoting yang, can be used for treating syndromes of kidney essence deficiency and yin-yang deficiency with the symptoms of steady fever and sweating, dysphoria and irritability, upset and insomnia, chest distress and headache, abnormal emotions, amnesia, blood pressure fluctuation, aching lumbus and leg pain, and the like, and can be used for treating patients suffering from climacteric syndromes with the symptoms.