45 results about "Taking blood pressure" patented technology

The invention relates to the technical field of hemodialysis, and discloses a hemodialysis ultrafiltration amount adjusting system based on multi-parameter self-adaptive control, which is used for solving the problem of insufficient prediction and prevention precision of a hemodialysis induced hypotension risk in a traditional system. According to the method, firstly, multi-parameter physiological data of the blood volume, the blood pressure and the ion concentration are synchronously collected in the whole dialysis process, then a physiological state data set is constructed through unified standardization and correlation matching, related change modes of the blood volume and the blood pressure are extracted, and ion deviation is superposed to form comprehensive risk characteristics; the risk characteristics are compared with a preset threshold value through trend analysis, the weight of each risk component is adjusted in a self-adaptive mode, a hypotension risk trend index is generated, the ultrafiltration rate is dynamically adjusted in a graded mode according to the indexes, the indexes are coupled with a real-time physiological data feedback closed loop, and therefore the prediction precision and the regulation and control refinement level of dialysis-induced hypotension are improved.

The invention belongs to a non-invasive blood pressure measurement method, and provides a blood pressure measurement method based on forearm local pulse transit time and a related device aiming at the technical problems that an existing blood pressure measurement method based on the forearm local pulse transit time is weak in relevancy and prone to being affected by complex factors. Non-invasive blood pressure measurement is realized by using an artificial neural network, and by synchronously detecting two paths of front arm local photoelectric volume pulse wave signals, front arm local pulse conduction time which is not highly related to blood pressure is taken as a core; in combination with demographic features having high correlation to blood pressure and other hemodynamic features except local pulse transit time, including time domain features, frequency domain features, time domain statistical features and frequency domain statistical features, sending the features to the trained prediction network model for prediction to obtain a model including systolic pressure, diastolic pressure, blood pressure, blood pressure, blood pressure, blood pressure, blood pressure, blood pressure, blood pressure and the like. And real-time blood pressure data of pulse pressure difference and average pressure.

This application provides a blood pressure measurement quality control method, device, terminal, and medium based on artificial intelligence image recognition. The invention uses facial recognition technology to store the facial information of subjects undergoing their first standardized blood pressure measurement. Before subsequent standardized blood pressure monitoring and follow-up, subjects can automatically log into the system via facial recognition. The invention also uses artificial intelligence image recognition and processing technology to perform quality control on subjects undergoing standardized blood pressure measurements, ensuring standardized measurement posture and effectively reducing measurement errors. Furthermore, if inaccurate posture is detected during blood pressure measurement, the invention will promptly remind the subject to adjust their posture through various means (such as voice, screen display, or flashing warning lights). Further, the invention matches a large amount of standardized blood pressure measurement data with facial information, which can be used to analyze and identify the facial features of hypertensive patients, thereby providing new clinical diagnostic and treatment evidence for hypertension.

The invention belongs to the technical field of artificial heart, and discloses an artificial heart magnetic suspension blood pump motor system technology based on wireless energy supply. The system is composed of a data acquisition module, a control algorithm module and an execution module. The data acquisition module acquires information such as blood flow, blood pressure, temperature and energy through various sensors and transmits the information to the control algorithm module. The control algorithm module adopts a model prediction control algorithm and calculates optimal control parameters according to the collected information. The execution module comprises a magnetic suspension blood pump motor, and the rotating speed of the magnetic suspension blood pump motor is dynamically adjusted according to the control parameters to meet physiological needs of the patient. According to the magnetic suspension blood pump motor system based on wireless energy supply, the problems of friction, energy loss and heating are reduced, and the reliability of the system is improved. And through a wireless energy supply mode, the movement freedom degree of the patient is effectively improved, and the system stability and the service life are enhanced.

1. The name of the design product: sphygmomanometer (HR-S501). 2. The use of the design product: for measuring blood pressure. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention relates to a biological signal processing technology, in particular to a noninvasive continuous blood pressure estimation system based on a subject adaptive feature modulation mechanism, which is characterized in that an individual prior embedding vector is generated through an individual prior embedding vector generation module; the subject adaptive feature extraction module performs real-time multi-level dynamic modulation on the preprocessed time sequence physiological signal according to an individual prior embedded vector, and outputs a high-dimensional time sequence feature map; the sequence processing module carries out time sequence dependence modeling and context refining on the high-dimensional time sequence characteristic pattern, and outputs time sequence characteristics; the cross-modal attention fusion module splices the individual prior embedded vectors and the time sequence features; the spliced feature vectors are input into a multi-head attention fusion module, dynamic cross-modal feature weighted fusion is achieved, and high-dimensional feature vectors are obtained; and the blood pressure regression output module is used for mapping the high-dimensional feature vector through a full connection layer and carrying out regression to obtain estimated values of systolic pressure and diastolic pressure. The problem that an existing static mapping normal form cannot deal with individual heterogeneity is solved.

An implantable hemodynamic monitoring system comprising a sensor comprising a substrate and a fiber optic connected to the substrate, the sensor configured to be implanted within a blood vessel, wherein the fiber optic comprises one or more reflective gratings, and an interrogator positioned on a skin surface at a position underlying the implantation site of the sensor enabling wireless communication by passing light through the skin to the sensor. Also described herein is a method of measuring blood pressure.

A method for measuring blood pressure includes the steps of placing a body part on a biometric monitoring device such that the body part covers a PPG module and a pressure sensor, instructing a user to adjust a force applied by the body part to the pressure sensor to achieve a series of discrete stage target pressures, a user is instructed to maintain the pressure applied to the pressure sensor at each discrete stage target pressure during a corresponding measurement period, and a blood pressure measurement is performed during one or more measurement periods. The biometric monitoring device may include a multi-wavelength PPG module and a pressure sensor. The biometric monitoring device is connected to a mobile computing device that executes an application that controls the biometric monitoring device.

The disclosure provides a device for non-invasive blood pressure measurement comprising a blood pressure cuff positioned around a limb with an optical sensor integrated into the distal end. The optical sensor comprises a transmission optical sensor with light source and detector on opposite sides of a digit distal to the inflatable portion. A processing device controls cuff inflation and deflation while capturing successive optical plethysmographic waveforms during deflation. The processing device high-pass filters waveforms to produce filtered signals with equal area above and below baseline, multiplies corresponding points of filtered waveforms to generate product values, and sums products to determine concordance measures. The device detects initial returning pulsations by identifying when initial low-amplitude optical pulsations have same shape as larger amplitude pulsations during deflation. Systolic blood pressure is determined when concordance measures indicate shape concordance between initial and subsequent optical pulsations. The device measures blood pressure and calculates ankle-brachial indices.

1. Name of the design product: multifunctional measuring instrument (YTN21). 2. Use of the design product: for measuring blood pressure, blood sugar, uric acid and total cholesterol for users. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

To reduce the burden on the subject when measuring blood pressure. [Solution] The biological information processing device 1 includes a blood pressure detection unit 13 that identifies a reference pulse wave from pulse waves measured in the past and detects a first reference blood pressure value, a second reference blood pressure value, and a third reference blood pressure value, based on the amplitude of the reference pulse wave; and a blood pressure estimation unit 14 that, when a part of the waveform including the rising edge of a newly measured pulse wave corresponds to a part of the waveform including the rising edge of the reference pulse wave, estimates at least one value or range of the first blood pressure value, second blood pressure value, and third blood pressure value based on the new pulse wave, based on the corresponding value among the first reference blood pressure value, second reference blood pressure value, and third reference blood pressure value.

1. Name of the product in this design: Blood Pressure Simulator (WDS-300). 2. Purpose of this design: This design is mainly used as an instrument for simulating human blood pressure measurement. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a door-to-door pension service quality evaluation and monitoring system based on a millimeter wave radar technology. The system comprises a millimeter wave MIMO radar module, a signal preprocessing and trajectory analysis unit, a service type calibration unit, a target distinguishing unit, a service quality evaluation unit, a comprehensive scoring unit, a selectable event identification module and an anomaly detection unit. The millimeter-wave radar module outputs indoor three-dimensional trajectory data to the signal preprocessing and trajectory analysis unit, and the indoor three-dimensional trajectory data is subjected to density clustering and improved Kalman filtering processing and then is output to the target distinguishing unit; the target distinguishing unit determines a reference position of the elderly by taking blood pressure measurement as a predefined calibration action, and divides a track by using a motion feature template of a caregiver; the evaluation unit generates distance and thermodynamic diagram indexes; the comprehensive scoring unit weights and outputs scores according to the types of the old people; and the abnormity detection unit gives an alarm when the indexes are abnormal, thereby realizing non-contact and high-precision door-to-door pension service monitoring and evaluation without privacy risk.

The present application relates to biological signal processing technology, and is a non-invasive continuous blood pressure estimation system based on a subject adaptive feature modulation mechanism, an individual prior embedding vector is generated by an individual prior embedding vector generation module; a subject adaptive feature extraction module performs real-time multi-level dynamic modulation on the preprocessed time series physiological signal according to the individual prior embedding vector, and outputs a high-dimensional time series feature map; a sequence processing module performs time series dependence modeling and context refining on the high-dimensional time series feature map, and outputs a time series feature; a cross-modal attention fusion module splices the individual prior embedding vector and the time series feature; the spliced feature vector is input into a multi-head attention fusion module to realize dynamic cross-modal feature weighted fusion and obtain a high-dimensional feature vector; and a blood pressure regression output module maps the high-dimensional feature vector through a full connection layer to regress to obtain an estimated value of systolic pressure and diastolic pressure. The present application solves the problem that the existing static mapping paradigm cannot cope with individual heterogeneity.

The invention provides ablation equipment and a readable storage medium. The ablation equipment comprises a controller, an energy generation module, a blood pressure detection module and a medical catheter, the energy generation module is configured to provide ablation energy to the medical catheter; the blood pressure detection module is configured to collect first blood pressure data in a first preset time window before an operation and collect second blood pressure data in a second preset time window after each ablation; the controller is configured to obtain preoperative dictrotic wave amplitude information according to the first blood pressure data; after each ablation, according to the second blood pressure data after the ablation, acquiring post-ablation dictrotic wave amplitude information corresponding to the ablation, and according to the preoperative dictrotic wave amplitude information and the post-ablation dictrotic wave amplitude information corresponding to the ablation, judging whether the target blood vessel needs to be continuously ablated after the ablation. According to the method, an operator can conveniently judge the immediate ablation effect in the operation, the operation type learning curve is effectively reduced, and the operation response rate and safety are improved.

The invention discloses a blood pressure measuring method and a related device.The blood pressure measuring method is applied to wearable equipment, the wearable equipment comprises air bags, the air bags comprise a first air bag and a second air bag, an air hole is formed between the first air bag and the second air bag, and the air hole can be used for achieving circulation of air flow between the air bags; when the wearable device is worn on the human body, the first air bag is located between the second air bag and the skin of the human body, the area of the first air bag projected to the skin of the human body is smaller than the area of the second air bag projected to the skin of the human body, and the wearable device can be used for collecting pressure signals in the air bag inflation or deflation process and calculating the blood pressure value based on the pressure signals. It can be seen that the wearable device comprising the multiple layers of air bags is provided, due to the design of the multiple layers of air bags, the air bags can provide large enough compression force during expansion, the contact area between the first air bag and the skin is small, good air permeability is achieved, and the comfort degree of a user during blood pressure measurement is effectively improved.

This invention provides a signal anti-interference processing method and system for assisting smartwatches in measuring blood pressure, relating to the field of medical monitoring signal processing technology. First, it collects the initial pulse wave signal and motion state data of the target user. The current interference level is quantified by calculating a motion interference intensity coefficient. When this coefficient is within a preset range, a dynamically adapted multi-layer filtering fusion is performed based on the initial pulse wave signal and the interference intensity coefficient. Then, variational mode decomposition is performed on the fused filtered signal to remove respiratory fluctuation interference. Finally, the blood pressure measurement result is obtained from the pure target pulse wave signal. This solves the technical problem of insufficient blood pressure measurement accuracy caused by motion artifacts, respiratory fluctuations, and other multi-source interference leading to pulse wave signal distortion when smartwatches use the oscilloscope method to measure wrist blood pressure. It has the technical effect of accurately processing multi-source interference, improving the purity of the pulse wave signal, and reducing blood pressure measurement errors.

A wearable device (100) comprises a motion sensor (203G) and a PPG module. A blood pressure detection method applied to the wearable device comprises: the wearable device (100) acquires motion data collected by the motion sensor (203G) and a first PPG signal collected by the PPG module; in a case where the motion data and / or the first PPG signal satisfies a first condition, the wearable device (100) determines whether a user is in a sleep state; in a case where it is determined that the user is in a first sleep event, the wearable device (100) acquires a first blood pressure value; the first sleep event comprises any one or more of the following: an OSA event, an REM event, an NREM sleep event, and a central sympathetic nervous activity increase event. When a specific sleep event is detected, the blood pressure is measured again, and when the specific sleep event is not detected, the blood pressure is stopped from being measured, so that the interference with the user's sleep is reduced, the power consumption of the wearable device (100) is reduced, and the user experience is improved.

The present invention relates to the field of blood pressure measurement technology, and discloses a measuring instrument and a control method and a control device thereof. The measuring instrument includes: a main unit having a first limiting structure, the first limiting structure including a limiting socket; an tracheal head including a tracheal plug suitable for being inserted into the limiting socket and sealed therewith; a magnetic device provided on one of the first limiting structure and the tracheal head, and suitable for generating a magnetic attraction force when the magnetic device is powered on; a connector made of a magnetic material provided on the other of the first limiting structure and the tracheal head, and after the tracheal plug is inserted into the limiting socket and installed in place, the magnetic attraction force of the magnetic device is suitable for acting on the connector. After the present invention powers on the magnetic device, the magnetic attraction force generated by the magnetic device acts on the connector, so that the tracheal head can be firmly fixed in the limiting socket. During the process of measuring blood pressure, the tracheal head will not fall off from the limiting socket, which is convenient for users to measure blood pressure.

1. The name of the design product: blood pressure meter arm band (YTN21). 2. The use of the design product: used in combination with arm type multifunctional measuring instrument for measuring blood pressure of users. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present application provides a device and method for measuring blood pressure. The device includes a processor 101, a first measurement component 102, and a second measurement component 103. The first measurement component 102 is configured to collect a user's blood pressure value; the second measurement component 103 is configured to collect the user's PPG signal. The processor 101 controls the first measurement component 102 to collect N sets of blood pressure values ​​from the user, and controls the second measurement component 103 to collect N sets of PPG signals corresponding to the N sets of blood pressure values. A target model is generated based on the N sets of blood pressure values ​​and PPG signals, where the input of the target model is the PPG signal and the output is the blood pressure value. After the target model is generated, the second measurement component 103 is controlled to collect the user's first PPG signal, and the first blood pressure value is determined based on the target model and the first PPG signal. This device can improve the accuracy of the measurement results when measuring the user's blood pressure value and is easy to operate.

An extracorporeal blood treatment apparatus, comprises: at least a pressure sensor (24, 25) located in a respective measurement site on an extracorporeal blood circuit (6, 7); an electronic control unit (23) operatively connected at least to the pressure sensor (24, 25). The electronic control unit (23) is configured to perform at least the following procedure: receiving from the pressure sensor (24, 25) a signal correlated to a measured blood pressure (P1measured, P2measured) in the measurement site; correcting the blood measured pressure (P1measured, P2measured) through a mathematical correction model to obtain a blood actual pressure (Pinlet, Poutlet) in a reference site other than the measurement site. Between the reference site and the measurement site, a circuit section and, optionally, at least one additional device (18, 27, 28) is / are positioned. The mathematical correction model is a model of a pressure drop in the circuit section and, optionally, in the additional device (18, 27, 28).

The invention discloses a PPG pulse wave principle blood pressure measurement system based on an intelligent ring, and relates to the field of artificial intelligence, and the system comprises a position layout module, a signal acquisition and preprocessing module, a calculation and modeling module, an error calibration module and a blood pressure measurement module. Through deep analysis of historical data and utilization of a deep learning model, a PPG optical sensor is adopted, blood flow changes are optically detected, noninvasive measurement is achieved, and discomfort caused by inflation of a traditional cuff is avoided. Through a low-power-consumption mode, all-weather monitoring of blood pressure changes can be achieved, and interference-free ambulatory blood pressure tracking is achieved. The intelligent ring is worn on the finger, the blood flow at the tail end is rich, the PPG signal is clearer and more stable, and the measurement precision is higher. The PPG signal quality of different finger parts is automatically detected through a multi-sensor signal quality adaptive selection algorithm, and the index finger with the optimal signal is selected for measurement, so that the accuracy is improved.

Disclosed in the present application are a blood pressure measurement method and a related apparatus. The blood pressure measurement method is applied to a wearable device. The wearable device comprises an airbag. The airbag comprises a first airbag and a second airbag. An air hole is formed between the first airbag and the second airbag. The air hole can be used for implementing air flow communication between the airbags. When the wearable device is worn on a human body, the first airbag is located between the second airbag and human skin, and the area of projection of the first airbag on the human skin is less than the area of projection of the second airbag on the human skin. The wearable device can be used for collecting a pressure signal in the process of inflation and deflation of the airbag, and calculating a blood pressure value on the basis of the pressure signal. It can be seen that the present application provides a wearable device comprising a plurality of layers of airbags. The design of the plurality of layers of airbags enables the airbags to provide a sufficiently large compression force when inflated, and the contact area between the first airbag and the skin is small, so that the wearable device has good air permeability, thereby effectively improving the comfort of a user when measuring the blood pressure.

1. Name of the designed product: electronic sphygmomanometer (arm type S2-01A). 2. Use of the designed product: a sphygmomanometer for measuring blood pressure. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The present invention relates to the field of medical device technology, and discloses a measuring instrument, comprising: a main unit having a first limiting structure, the first limiting structure including a limiting socket; an tracheal head including a tracheal plug suitable for being inserted into the limiting socket and sealed therewith; a first magnetic component, provided at one of the first limiting structure and the tracheal head; a second magnetic component, provided at the other of the first limiting structure and the tracheal head, and after the tracheal plug is inserted into the limiting socket, a magnetic attraction is generated between the first magnetic component and the second magnetic component. When the present invention needs to measure blood pressure, the tracheal plug is inserted into the limiting socket and sealed therewith, and the magnetic attraction generated between the first magnetic component and the second magnetic component can firmly fix the tracheal head in the limiting socket. During the process of measuring blood pressure, the tracheal head will not fall off from the limiting socket, which is convenient for users to measure blood pressure.

1. The name of this design product: Palm watch. 2. Purpose of this design product: used for measuring blood pressure of human body. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view. 5. The design for which protection is sought includes color.

The invention discloses a blood pressure measuring method based on a smart phone. According to the method, chest acceleration and fingertip pulse photoplethysmography (PPG) signal data are obtained by using a built-in accelerometer and a rear camera of the smart phone without any external equipment. After the collected signals are preprocessed, the signal quality is evaluated based on a template matching method, and when the signal quality score is lower than a preset threshold value, the blood pressure result is not output, and operation suggestions are given. For high-quality signals, waveform characteristics and pulse wave transit time (PTT) are calculated, and a machine learning model is adopted for blood pressure measurement. Through quality evaluation, feature processing and machine learning technologies, the problems of low measurement accuracy and susceptibility to interference in a complex environment are solved, the blood pressure measurement reliability of the mobile terminal equipment is improved, and a blood pressure measurement scheme which is more convenient than a traditional blood pressure measurement method is realized.

A sphygmomanometer performs blood pressure measurement by an oscillometric method using a pressure sensor detecting pressure inside a blood pressure measuring cuff by temporarily pressing a wrist as a measurement target site with the cuff, also including: a mode operation unit inputting an instruction mode for switching a mode to a nighttime blood pressure measurement mode wherein the blood pressure measurement is automatically started according to a predetermined schedule; a first determination unit that temporarily pressurizes the cuff to a pressure lower than a cuff pressure used for the blood pressure measurement along with an input instruction mode and a shift to the nighttime blood pressure measurement mode, and determines a winding state of the cuff on the basis of an output of the pressure sensor; and a notification unit that, along with determination of the winding state of the cuff, notifies the determined winding state of the cuff.

The application provides an ablation device and a readable storage medium, the ablation device comprising a controller, an energy generation module, a blood pressure detection module and a medical catheter; the energy generation module is configured to provide ablation energy to the medical catheter; the blood pressure detection module is configured to collect first blood pressure data within a first preset time window before surgery, and collect second blood pressure data within a second preset time window after each ablation; the controller is configured to: obtain preoperative heavy beat wave amplitude information according to the first blood pressure data; after each ablation, obtain post-ablation heavy beat wave amplitude information corresponding to the ablation according to the second blood pressure data after the ablation, and determine whether the target blood vessel needs to be continuously ablated after the ablation according to the preoperative heavy beat wave amplitude information and the post-ablation heavy beat wave amplitude information corresponding to the ablation. The application can help the operator to judge the immediate ablation effect during surgery, effectively reduce the learning curve of the operation, and improve the operation response rate and safety.