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WO2017092020A1 - Procédé et appareil de mesure de la pression artérielle - Google Patents

Procédé et appareil de mesure de la pression artérielle Download PDF

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Publication number
WO2017092020A1
WO2017092020A1 PCT/CN2015/096366 CN2015096366W WO2017092020A1 WO 2017092020 A1 WO2017092020 A1 WO 2017092020A1 CN 2015096366 W CN2015096366 W CN 2015096366W WO 2017092020 A1 WO2017092020 A1 WO 2017092020A1
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WIPO (PCT)
Prior art keywords
ppg
blood pressure
signal
ptt
duration
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PCT/CN2015/096366
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English (en)
Chinese (zh)
Inventor
黄邦宇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2015/096366 priority Critical patent/WO2017092020A1/fr
Priority to CN201580072294.1A priority patent/CN107106055B/zh
Publication of WO2017092020A1 publication Critical patent/WO2017092020A1/fr
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/021—Measuring pressure in heart or blood vessels

Definitions

  • Hypertension is the most common type of cardiovascular disease. This disease is getting more and more attention and attention. Blood pressure measurement has become an indispensable means for effective monitoring of hypertension.
  • the indirect blood pressure measurement method indirectly obtains blood pressure data such as arterial systolic pressure and arterial diastolic pressure by detecting parameters such as pulsation of the arterial wall and changes in blood vessel volume.
  • Oscillometric Method Another commonly used indirect measurement method for blood pressure is the Oscillometric Method, which uses a cuff to block arterial blood flow. During slow deflation, it detects the pulsating oscillation wave envelope from the blood vessel wall and finds out The inherent relationship between the envelope and arterial blood pressure, in turn, blood pressure data. This method is also widely used in various clinical electronic blood pressure monitors.
  • the method of obtaining blood pressure information using PTT estimation requires the ECG signal. If the ECG lead method used is a limb lead, it may easily occur due to poor contact of the limb, or the ECG electrode may fall off after a long period of non-contact. The ECG signal was not available, which made it impossible to measure blood pressure.
  • ECG average blood pressure of the population
  • SBP+DBP diastolic blood pressure
  • the amplitude of heart rate variability under respiratory regulation it is proposed to use ECG to measure blood pressure.
  • the heart rate variation amplitude can be obtained by collecting the ECG signal
  • the average blood pressure can be obtained by using the relationship between the average blood pressure of the population and the heart rate variation amplitude.
  • obtaining blood pressure information in this way also requires collecting ECG signals, which causes the same problem as the above PTT calculation method for obtaining blood pressure.
  • the ECG signal cannot be obtained due to poor contact or electrode peeling, resulting in inaccurate measurement. blood pressure.
  • Embodiments of the present invention provide a blood pressure measuring method and apparatus for overcoming the problem that the ECG signal cannot be obtained due to poor contact or electrode detachment, so that blood pressure cannot be accurately measured.
  • a blood pressure measurement method includes:
  • the PTT acquisition duration is greater than or equal to a preset PTT effective duration, acquiring the blood pressure measurement value of the user based on the PTT blood pressure calculation model;
  • the PPG acquisition duration refers to a duration in which the signal quality of the PPG signal meets the second preset condition
  • the method further includes:
  • the ECG acquisition duration is obtained, where the ECG acquisition duration refers to the signal quality of the ECG signal satisfies the first The length of the preset condition;
  • the blood pressure measurement value of the user is acquired based on the ECG blood pressure calculation model.
  • the blood pressure measurement value of the user is obtained based on a PPG blood pressure calculation model, and specifically includes:
  • the PPG signal characteristic value corresponding to the collected PPG signal is substituted into the PPG blood pressure calculation model, and the blood pressure measurement value of the user is calculated.
  • the first preset condition is that a lead connection state of the ECG signal is a normal connection state and a signal-to-noise ratio of the ECG signal is less than or equal to a first threshold, or a lead connection state of the ECG signal is a normal connection state and an invalid feature point in the ECG signal accounts for a total of feature points The ratio is less than or equal to the second threshold, or the lead connection state of the ECG signal is a normal connection state and the ECG signal continuously acquires a vertex position of the ECG R wave.
  • the second preset condition is that a signal to noise ratio of the PPG signal is less than or equal to a third threshold, or an invalid feature point in the PPG signal is occupied by a total of feature points. The ratio is less than or equal to the fourth threshold.
  • a blood pressure measuring device includes:
  • ECG signal acquisition circuit for collecting the ECG signal of the user
  • a PPG signal acquisition circuit for collecting the PPG signal of the user
  • a processor for obtaining a PTT acquisition duration, where the PTT acquisition duration refers to a duration in which the signal quality of the ECG signal satisfies a first preset condition and the signal quality of the PPG signal simultaneously satisfies a second preset condition;
  • the PTT acquisition duration is greater than or equal to a preset PTT effective duration, acquiring the blood pressure measurement value of the user based on the PTT blood pressure calculation model;
  • the PPG acquisition duration refers to a duration in which the signal quality of the PPG signal meets the second preset condition
  • the PPG acquisition duration is greater than or equal to a preset PPG effective duration, acquiring the blood pressure measurement value of the user based on the PPG blood pressure calculation model;
  • a display module is configured to display the blood pressure measurement value of the user.
  • the processor is further configured to:
  • the ECG acquisition duration is obtained, where the ECG acquisition duration refers to the signal quality of the ECG signal satisfies the first The length of the preset condition;
  • the blood pressure measurement value of the user is acquired based on the ECG blood pressure calculation model.
  • the processor acquires the blood pressure measurement value of the user based on the PPG blood pressure calculation model, specifically:
  • the PPG signal characteristic value corresponding to the collected PPG signal is substituted into the PPG blood pressure calculation model, and the blood pressure measurement value of the user is calculated.
  • the first preset condition is a lead connection state of the ECG signal a normal connection state and a signal-to-noise ratio of the ECG signal is less than or equal to a first threshold, or a lead connection state of the ECG signal is a normal connection state and invalid feature points in the ECG signal are in a total feature point The ratio is less than or equal to the second threshold, or the lead connection state of the ECG signal is a normal connection state and the ECG signal continuously acquires a vertex position of the ECG R wave.
  • the second preset condition is that the signal to noise ratio of the PPG signal is less than or It is equal to the third threshold, or the proportion of the invalid feature points in the PPG signal in the total feature points is less than or equal to the fourth threshold.
  • the method of the embodiment of the present invention is used to collect the ECG signal and the PPG signal of the user; and the acquisition time length of the PTT is acquired, and the PTT acquisition duration refers to the signal quality of the ECG signal that satisfies the first preset condition and the signal of the PPG signal.
  • the quality meets the duration of the second preset condition at the same time; if it is determined that the PTT acquisition duration is greater than or equal to the preset PTT effective duration, the user's blood pressure measurement value is obtained based on the PTT blood pressure calculation model; if it is determined that the PTT acquisition duration is less than the preset PTT
  • the effective duration is the length of the PPG acquisition.
  • the PPG acquisition duration refers to the duration of the PPG signal's signal quality that meets the second preset condition. If the PPG acquisition duration is greater than or equal to the preset PPG effective duration, the PPG blood pressure calculation model is used to obtain the user. Blood pressure measurement. Therefore, the method of the embodiment of the present invention can improve the user experience, and the user's blood pressure measurement value can be obtained even if the ECG signal is poorly contacted or the electrode is detached, thereby improving the efficiency of the blood pressure measurement.
  • FIG. 1 is a flow chart showing an overview of a blood pressure measuring method according to an embodiment of the present invention
  • FIG. 2 is a specific flowchart of user A measuring blood pressure according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a blood pressure measuring device according to an embodiment of the present invention.
  • Embodiments of the present invention provide a method and a device for measuring blood pressure, which are used to overcome the situation in which the electrode is detached and the ECG signal is not acquired, thereby making it impossible to perform blood pressure measurement.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.
  • an embodiment of the present invention provides a blood pressure measurement method, and the specific process includes:
  • Step 110 Collect the ECG signal and the PPG signal of the user.
  • the user turns on the blood pressure measuring device, and gives a blood pressure measurement opening instruction, and when the blood pressure measuring device receives the blood pressure measurement opening command, starts collecting the user's ECG signal and the PPG signal;
  • the blood pressure measuring device determines that the time when the lead connection state of the collected user ECG signal is in the normal connection state exceeds the first duration, the user may be prompted to determine whether to open the blood pressure measurement. If the user chooses to turn on the blood pressure measurement, the blood pressure measuring device starts measuring the user's blood pressure based on the received blood pressure measurement opening command.
  • the first duration here is a preset value, for example 10s.
  • the blood pressure measurement can be automatically started.
  • the blood pressure measurement device may not be automatically caused by the user's accidental collision. Start blood pressure measurement.
  • Step 120 Obtain a PTT acquisition duration.
  • the PTT acquisition duration refers to a duration in which the signal quality of the ECG signal satisfies the first preset condition and the signal quality of the PPG signal simultaneously satisfies the second preset condition.
  • the blood pressure measuring device collects the ECG signal and the PPG signal, it is necessary to separately judge the signal quality of the two signals.
  • the second preset condition herein may be that the signal to noise ratio of the PPG signal is less than or equal to the third threshold, or the proportion of the invalid feature points in the PPG signal is less than or equal to the total feature point. Equal to the fourth threshold and so on.
  • the duration of the PPG signal with the signal-to-noise ratio less than or equal to the third threshold may be used as the PPG acquisition duration, or the duration of the invalid feature point in the PPG signal in the total feature point is less than or equal to the third threshold. As the PPG acquisition duration.
  • the ECG signal When judging the signal quality of the ECG signal, it is first determined whether the lead connection state of the ECG signal is normal. If the lead is detached, it is directly determined that the ECG signal is unavailable, and if the lead connection state of the ECG signal is the normal connection state, then further Judging the quality of the ECG signal, similarly, the ECG signal can also be used to judge the signal quality.
  • the first preset condition herein may be that the lead connection state of the ECG signal is a normal connection state and the signal-to-noise ratio of the ECG signal is less than or equal to the first threshold value as the ECG acquisition duration, or the lead of the ECG signal.
  • connection state is the normal connection state and the duration of the invalid feature points in the ECG signal in the total feature points is less than or equal to the second threshold as the ECG acquisition duration.
  • the vertex position of the ECG R wave can be continuously acquired as the first preset condition.
  • the R wave can be identified by a threshold detection method. Therefore, it is also possible to set the lead connection state of the ECG signal to the normal connection state and the ECG signal continuously acquires the duration of the vertex position of the ECG R wave as the ECG acquisition duration.
  • the method for judging the signal quality is not limited to the above, and various methods for judging the signal quality are provided in the prior art, and details are not described herein again.
  • the signal quality of the ECG signal satisfies the first preset condition and the signal quality of the PPG signal simultaneously satisfies the second preset condition as the PTT acquisition duration.
  • Step 130 If it is determined that the PTT acquisition duration is greater than or equal to the preset PTT effective duration, the user's blood pressure measurement is obtained based on the PTT blood pressure calculation model.
  • the preset PTT effective duration may be determined according to an empirical value.
  • the so-called PTT effective duration refers to the shortest measurement duration that the user must use the PTT blood pressure calculation model to obtain the blood pressure measurement value, and the signal quality of the ECG signal satisfies the first preset condition and the signal quality of the PPG signal satisfies at the same time.
  • Two preset conditions Specifically, in each beat cycle of the heart, the effective ECG waveform feature points and the effective PPG waveform feature points can form an effective pair, called an effective PTT pairing period.
  • the PTT effective duration consists of multiple valid PTT pairing periods.
  • the ECG waveform feature point usually refers to the R wave position
  • the PPG waveform feature point usually refers to the position of the valley, the wave top, and the maximum slope point of the rising edge.
  • the blood pressure measuring device determines that the PTT acquisition duration is greater than or equal to the preset PTT effective duration, the corresponding PTT result is calculated according to the ECG signal and the PPG signal corresponding to the PTT acquisition duration, and the obtained PTT result is substituted into the PTT blood pressure calculation model.
  • the user's blood pressure measurement is calculated, wherein the PTT blood pressure calculation model can be adopted but not limited to the following formula:
  • SBP 0 is the systolic pressure calibration value
  • DBP 0 is the diastolic pressure calibration value
  • PTT w0 is the pulse wave propagation time calibration value
  • PTTw is the current pulse wave propagation time
  • A is the preset coefficient, which is related to the elasticity of the blood vessel wall.
  • the corresponding PTT results can be calculated according to the ECG signal and the PPG signal corresponding to the PTT acquisition duration, and the obtained PTT results are substituted into the PTT blood pressure calculation model to calculate the user's blood pressure measurement values.
  • the ECG signal and the PPG signal acquired subsequently are determined.
  • the corresponding PTT is calculated, and the PTT is substituted into the PTT blood pressure calculation model to calculate the user's blood pressure measurement value.
  • the acquisition time period can be obtained.
  • the plurality of PTTs are averaged, or the PTTs within the preset range are averaged according to the distribution weights of the plurality of PTTs, and then the PTT average is substituted into the PTT blood pressure calculation model.
  • the corresponding PTT result is calculated, and the plurality of PTTs are respectively substituted into the PTT blood pressure calculation model to obtain the blood pressure value, and then the obtained plurality of blood pressure values are averaged, or According to the distribution weight of the plurality of blood pressure values, the blood pressure values distributed within the preset range are averaged as the blood pressure measurement value of the user.
  • the obtained high pressure values are five blood pressure data of 121, 122, 121, 130, and 125, and the average value of the five high pressure values is 123.8.
  • the high pressure values distributed within 80% are averaged, and the high pressure values distributed within 80% are only 121, 122, 121, and 125, and the average value is 122.25.
  • Step 140 If it is determined that the PTT acquisition duration is less than the preset PTT effective duration, the PPG acquisition duration is obtained, and the PPG acquisition duration refers to the duration of the PPG signal's signal quality meeting the second preset condition.
  • the PPG acquisition duration refers to the duration when the signal quality of the PPG signal satisfies the second preset condition.
  • Step 150 If it is determined that the PPG acquisition duration is greater than or equal to the preset PPG effective duration, the blood pressure measurement value of the user is obtained based on the PPG blood pressure calculation model.
  • the preset PPG effective duration may be determined according to an empirical value.
  • the so-called PPG effective duration refers to the shortest measurement duration that the user must take to obtain the blood pressure measurement value of the PPG blood pressure calculation model, and the signal quality of the PPG signal satisfies the second preset condition during the duration.
  • two adjacent, valid PPG waveform feature points constitute a PPG valid period.
  • the effective duration of the PPG consists of multiple valid PPG valid periods. PPG waveform feature points are commonly used for valleys, wave tops, and maximum slope points of rising edges.
  • the blood pressure measuring device determines that the PPG acquisition duration is greater than or equal to the preset PPG effective duration, the corresponding PPG signal characteristic value is determined according to the PPG signal collected during the PPG acquisition duration, and the obtained PPG signal characteristic value is substituted into the PPG blood pressure calculation model. User's blood pressure measurement.
  • the PPG blood pressure measurement model can be obtained by the following method, but is not limited to the following formula:
  • SBP 0 systolic pressure calibration value
  • DBP 0 diastolic pressure calibration value
  • PTT w0 pulse wave propagation time calibration value
  • R for collecting ECG. Wave position, R wave amplitude, PPG waveform vertex, PPG waveform bottom point, PPG waveform rising edge slope maximum point, etc.
  • b is the proportional coefficient between the difference between the two blood pressures and the height of the PPG waveform. This scale factor needs to be obtained through empirical data accumulation.
  • the PPG correlation coefficient and the collected data are brought into the PTT blood pressure calculation model, and a model for calculating blood pressure based on the PPG signal characteristic value is obtained as a PPG blood pressure calculation model.
  • the characteristic value of the PPG signal is H PPG , that is, the height of the PPG waveform
  • the PPG blood pressure calculation model is:
  • the PPG signal characteristic value corresponding to the PPG acquisition duration can be substituted into the PTT blood pressure calculation model to calculate the user's blood pressure measurement value.
  • the PPG signal collected subsequently is determined.
  • the corresponding PPG signal characteristic value is substituted into the PPG blood pressure calculation model to calculate the user's blood pressure measurement value.
  • the blood pressure measuring device determines that the PTT acquisition duration is less than the preset PTT effective duration and the PPG acquisition duration is less than the preset PPG effective duration, the ECG acquisition duration can be acquired, and the ECG acquisition duration refers to the signal quality of the ECG signal satisfies the first pre- Set the duration of the condition.
  • the blood pressure measuring device acquires the blood pressure measurement value of the user based on the ECG blood pressure calculation model if it is determined that the ECG acquisition duration is greater than or equal to the preset ECG effective duration.
  • the preset ECG effective duration here is determined based on the empirical value.
  • the so-called ECG effective duration refers to the shortest measurement duration that the ECG blood pressure calculation model is to be used to obtain the user's blood pressure measurement value, and the signal quality of the ECG signal satisfies the first preset condition during the duration.
  • two adjacent, valid ECG waveform feature points constitute an ECG valid period.
  • the effective duration of the ECG consists of multiple valid ECG valid periods.
  • the ECG waveform feature point usually refers to the R wave position.
  • the relationship between the heart rate variability and (SBP+DBP)/2 K ECG2 *RR.
  • K ECG1 and K ECG2 are the empirical coefficients obtained after a large number of people collect, and RR is the heart rate variability value, which is obtained by calculating and analyzing the ECG signal.
  • K ECG1 and K ECG2 are determined based on the information provided by the user on age, sex, weight, etc., and the SBP value and the DBP value are further calculated.
  • the blood pressure measuring device determines to obtain the blood pressure measurement value of the user based on the ECG blood pressure calculation model, if the signal quality of the PPG signal is improved, and the PTT acquisition time length is greater than or equal to the preset PTT effective time length, then the user is converted into a PTT blood pressure calculation model. Blood pressure measurement value, if the signal quality of the ECG signal is deteriorated, and the signal quality of the PPG signal is improved, and the PPG acquisition duration is greater than or equal to the preset PPG effective duration, then the blood pressure measurement value of the user is obtained based on the PPG blood pressure calculation model.
  • the blood pressure measurement based on the PPG blood pressure measurement method is higher in accuracy than the blood pressure measurement method based on the ECG, in the embodiment of the present invention, when the blood pressure measurement method based on PTT is not available, the blood pressure measurement based on the PPG can be preferentially considered. the way.
  • the PTT blood pressure measurement method may be due to poor PPG signal quality. It cannot be performed normally. For example, due to individual skin color, damage to the measurement site, weak perfusion, etc., the quality of the obtained PPG signal is poor, resulting in the inability to perform PPG feature point recognition.
  • a blood pressure based method based on ECG can be used. Further, in order to improve the quality of the PPG signal, the light intensity can be adjusted.
  • the PTT acquisition time reaches the preset PTT effective duration
  • the PTT blood pressure measurement is performed; if the PTT acquisition time is long If the preset PTT effective duration is not reached, and the PPG acquisition duration reaches the preset PPG effective duration, the PPG blood pressure measurement is used; if the PTT acquisition duration and the PPG acquisition duration have not reached the preset value, the ECG measurement mode is continued.
  • Embodiment 1 taking FIG. 2 as an example, performing blood pressure measurement for user A, specifically:
  • Step 201 User A initiates blood pressure measurement.
  • Step 202 The blood pressure measuring device collects the ECG signal and the PPG signal of the user A.
  • Step 203 The blood pressure measuring device acquires the PTT collection duration, determines whether the PTT acquisition duration is greater than or equal to the preset PTT effective duration, and if yes, executes step 204, otherwise performs step 205.
  • Step 204 The blood pressure measuring device calculates the blood pressure measurement value of the user A based on the PTT blood pressure calculation model.
  • Step 205 The blood pressure measuring device acquires the PPG acquisition duration, and determines whether the PPG acquisition duration is greater than or equal to the preset PPG effective duration. If the step 206 is performed, otherwise step 207 is performed.
  • Step 206 The blood pressure measuring device calculates the blood pressure measurement value of the user A based on the PPG blood pressure calculation model.
  • Step 207 The blood pressure measuring device acquires the ECG acquisition duration, and determines whether the ECG acquisition duration is greater than or equal to the preset ECG effective duration. If the step 208 is performed, otherwise step 209 is performed.
  • Step 208 The blood pressure measuring device calculates the blood pressure measurement value of the user A based on the ECG blood pressure calculation model.
  • Step 209 The blood pressure measuring device prompts the user A to fail the blood pressure measurement.
  • the embodiment of the present invention provides a blood pressure measuring device 30, which may be a watch, a wristband or other wearable device, or a tablet computer, etc., the device includes:
  • the ECG signal collecting circuit 31 is configured to collect an ECG signal of the user
  • the PPG signal collecting circuit 32 is configured to collect a PPG signal of the user
  • the processor 33 is configured to acquire a PTT acquisition duration, where the PTT acquisition duration refers to a duration in which the signal quality of the ECG signal satisfies a first preset condition and the signal quality of the PPG signal simultaneously satisfies a second preset condition;
  • the PTT acquisition duration is greater than or equal to a preset PTT effective duration, acquiring a blood pressure measurement value of the user based on the PTT blood pressure calculation model;
  • the PPG acquisition duration refers to the duration of the PPG signal that meets the second preset condition
  • the display module 34 is configured to display a blood pressure measurement value of the user.
  • the processor 33 is further configured to:
  • the ECG acquisition duration is obtained, where the ECG acquisition duration is that the signal quality of the ECG signal meets the first preset. The length of the condition;
  • the user's blood pressure measurement is obtained based on the ECG blood pressure calculation model.
  • the processor 33 when the processor 33 acquires the blood pressure measurement value of the user based on the PPG blood pressure calculation model, specifically, the processor 33 can be used to:
  • the PPG correlation coefficient and the collected data are brought into the PTT blood pressure calculation model, and a model for calculating blood pressure based on the PPG signal characteristic value is obtained as a PPG blood pressure calculation model;
  • the first preset condition is that the lead connection state of the ECG signal is a normal connection state and the signal to noise ratio of the ECG signal is less than or equal to the first threshold, or the lead connection state of the ECG signal is positive.
  • the normally connected state and the proportion of the invalid feature points in the ECG signal in the total feature points is less than or equal to the second threshold, or the lead connection state of the ECG signal is the normal connection state and the ECG signal continuously acquires the vertex position of the ECG R wave .
  • the second preset condition is that the signal to noise ratio of the PPG signal is less than or equal to the third threshold, or the proportion of the invalid feature points in the PPG signal in the total feature points is less than or equal to the fourth threshold.
  • the processor 33 herein may be a chip, such as a Field-Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), or a combination thereof.
  • FPGA Field-Programmable Gate Array
  • ASIC Application Specific Integrated Circuit
  • the ECG signal acquisition circuit 31, the PPG signal acquisition circuit 32, the processor 33, and the display module 34 are connected by a bus 35 in FIG. 3, and the bus is indicated by a thick line in FIG. 3, and between other components.
  • the connection method is only for illustrative purposes and is not limited.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 3, but it does not mean that there is only one bus or one type of bus.
  • the steps of the method provided in the embodiment of the present invention may be performed in parallel or in series, and some steps may also be implemented in a previous step.
  • the step of acquiring the PPG acquisition time is also performed. It can be obtained during the previous acquisition of the PTT acquisition duration.
  • first used only to distinguish different objects, and do not represent a particular order or a particular relationship of the numerical magnitude of the objects.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

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Abstract

L'invention concerne un procédé et un appareil (30) de mesure de la pression artérielle. Le procédé consiste à : recueillir un signal d'ECG et un signal PPG d'un utilisateur (110) ; acquérir une durée de recueil de PTT (120) ; s'il est déterminé que la durée de recueil de PTT est supérieure ou égale à une durée de validité de PTT prédéfinie, acquérir une valeur de mesure de la pression artérielle de l'utilisateur sur la base d'un modèle de calcul de la pression artérielle PTT (130) ; s'il est déterminé que la durée de recueil de PTT est inférieure à la durée de validité de PTT prédéfinie, acquérir une durée de recueil de PPG (140) ; et s'il est déterminé que la durée de recueil de PPG est supérieure ou égale à une durée de validité PPG prédéfinie, acquérir la valeur de mesure de la pression artérielle de l'utilisateur sur la base d'un modèle de calcul de la pression artérielle de PPG (150). L'appareil (30) de mesure de la pression artérielle comprend un circuit (31) de recueil de signal d'ECG, un circuit (32) de recueil de signal PPG, un processeur (33) et un module d'affichage (34). Cet appareil (30) de mesure de la pression artérielle permet d'améliorer l'efficacité de mesure de la pression artérielle et d'obtenir une valeur de mesure de la pression artérielle d'un utilisateur, même en cas de mauvais contact ou de séparation d'électrode associés à un signal d'ECG.
PCT/CN2015/096366 2015-12-03 2015-12-03 Procédé et appareil de mesure de la pression artérielle Ceased WO2017092020A1 (fr)

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PCT/CN2015/096366 WO2017092020A1 (fr) 2015-12-03 2015-12-03 Procédé et appareil de mesure de la pression artérielle
CN201580072294.1A CN107106055B (zh) 2015-12-03 2015-12-03 一种提升血压测量效率的方法及血压测量装置

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Cited By (5)

* Cited by examiner, † Cited by third party
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US20210282657A1 (en) * 2020-03-15 2021-09-16 Inventec (Pudong) Technology Corporation Method for dynamically switching blood pressure measurement model
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CN114052689A (zh) * 2021-12-07 2022-02-18 山东大学 一种运动状态下血压监测装置、存储介质及设备
EP4659663A1 (fr) * 2024-06-06 2025-12-10 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Dispositif et procédé de surveillance de la pression sanguine d'un sujet par réalisation de mesures sur un tissu du sujet

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