CN116250813A - Blood pressure monitoring method and monitoring device - Google Patents

Abstract

A blood pressure monitoring method and a monitoring device, the method comprising: identifying the physical state of a monitoring object; when it is recognized that the monitoring object's physical state is a sleep state or a resting state, the physiological signal sensor worn by the monitoring object collects the The physiological signal of the monitoring object, the physiological signal at least includes a blood oxygen signal; determining the pulse transit time of the monitoring object according to the physiological signal, and monitoring the blood pressure state of the monitoring object according to the pulse wave transit time. The blood pressure monitoring method and monitoring device of the present application monitor the blood pressure state of the monitoring object according to the pulse wave transit time when the monitoring object is in a sleeping state or a static state, and can avoid disturbing the monitoring object while ensuring continuous monitoring.

Description

Blood pressure monitoring method and monitoring device

technical field

The present application generally relates to the technical field of medical equipment, and more specifically relates to a blood pressure monitoring method and a monitoring device.

Background technique

The traditional non-invasive blood pressure measurement is intermittent blood pressure measurement, which is not enough to monitor the blood pressure variation of patients at night, and it is easy to miss worsening events, and it is necessary to pressurize the cuff to block the blood flow, which is not comfortable, and it is easy to disturb the patient's rest. Many studies have shown that pulse wave transit time is related to systolic and diastolic blood pressure, but when blood pressure is derived from pulse wave transit time, there are differences in the conversion relationship between pulse wave transit time and blood pressure among individuals. In order to remove the arterial compliance caused by individual differences, Due to the influence of sex and so on, it still needs to be calibrated with traditional non-invasive blood pressure measurement devices.

Contents of the invention

A series of concepts in simplified form are introduced in the Summary of the Invention, which will be further detailed in the Detailed Description. The summary of the invention in this application does not mean to limit the key features and essential technical features of the claimed technical solution, nor does it mean to determine the protection scope of the claimed technical solution.

The first aspect of the embodiment of the present application provides a blood pressure monitoring method, the method comprising: identifying the physical state of the monitoring object; The worn physiological signal sensor collects the physiological signal of the monitoring object, and the physiological signal includes at least a blood oxygen signal; determines the pulse wave transit time of the monitoring object according to the physiological signal, and monitors the pulse wave transit time according to the pulse wave transit time. The blood pressure status of the monitored subjects.

In one embodiment, the blood pressure state includes the variation range of blood pressure.

In one embodiment, the monitoring the blood pressure state of the monitored subject according to the pulse wave transit time includes: continuously monitoring the blood pressure state of the monitored subject, or monitoring the blood pressure of the monitored subject at preset time intervals state.

In one embodiment, the length of the preset time interval is fixed or variable.

In one embodiment, when the preset time interval has a variable length, the method further includes: adjusting the length of the preset time interval according to the historical trend of the blood pressure state of the monitored subject.

In one embodiment, the method further includes: in the process of monitoring the blood pressure state of the monitored subject according to the pulse wave transit time, if an abnormal blood pressure state is detected, starting a non-invasive blood pressure measurement device, and performing the monitoring The subject's blood pressure value is measured.

In one embodiment, the method further includes: starting a non-invasive blood pressure measurement device according to a preset period, and periodically measuring the blood pressure value of the monitoring subject; and monitoring the blood pressure of the monitoring subject according to the pulse wave transit time During the state, if an abnormal blood pressure state is detected and the preset measurement time point of the non-invasive blood pressure measurement device has not been reached, the non-invasive blood pressure measurement device is started to perform emergency measurement of the blood pressure value of the monitoring object.

In one embodiment, the method further includes: starting the non-invasive blood pressure measurement device according to a preset period, and periodically measuring the blood pressure value of the monitored subject, wherein when the preset measurement time point of the non-invasive blood pressure measurement device is reached, according to The blood pressure state judges whether to start the non-invasive blood pressure measurement device to perform periodic measurement at preset measurement time points.

In one embodiment, the method further includes: adjusting control parameters of the non-invasive blood pressure measurement device according to the blood pressure state.

In one embodiment, the manner of identifying the physical state of the monitoring object includes at least one of the following: identifying the physical state of the monitoring object according to the physiological signal and/or the motion signal collected by the motion sensor worn by the monitoring object ; identify the physical state of the monitored object according to the signal collected by the sensor arranged in the bed of the monitored object; identify the physical state of the monitored object according to the signal collected by the radar or image acquisition device arranged around the monitored object .

In one embodiment, the physiological signal includes at least two blood oxygen signals, or, the physiological signal includes at least one blood oxygen signal and at least one ECG signal.

The second aspect of the embodiment of the present application provides a blood pressure monitoring method, the method comprising: collecting the physiological signal of the monitoring object through a physiological signal sensor worn by the monitoring object, the physiological signal at least including the blood oxygen signal; according to the physiological signal The signal determines the pulse wave transit time of the monitoring object, and monitors the blood pressure state of the monitoring object according to the pulse wave transit time; judges whether it is necessary to start the non-invasive blood pressure measurement device according to the blood pressure state; When the device is used, the physical state of the monitoring object is identified; when the physical state meets the preset requirements, the non-invasive blood pressure measurement device is activated to measure the blood pressure value of the monitoring object.

In one embodiment, the body state meets preset requirements, including: the monitored object is in an awake state, and the posture of the monitored object is a preset posture.

The third aspect of the embodiment of the present application provides a blood pressure monitoring method. The method includes: identifying the physical state of the monitoring object; The signal sensor collects the physiological signal of the monitoring object, determines the pulse wave transit time of the monitoring object according to the physiological signal, and monitors the blood pressure of the monitoring object according to the pulse wave transit time, wherein the physiological signal is at least The blood oxygen signal is included; when it is recognized that the monitored object's physical state is awake, the monitored object's blood pressure value is measured by a non-invasive blood pressure measurement device worn by the monitored object.

The fourth aspect of the embodiment of the present application provides a monitoring device, the monitoring device includes: a physiological signal sensor, used to collect the physiological signal of the monitoring object, the physiological signal includes at least a blood oxygen signal; a processor, connected to the physiological signal A sensor for performing the blood pressure monitoring method as described above.

The fifth aspect of the embodiment of the present application provides a monitoring device, the monitoring device includes: a physiological signal sensor, used to collect the physiological signal of the monitoring object, the physiological signal includes at least a blood oxygen signal; a non-invasive blood pressure measurement device, used to monitor The blood pressure value of the monitoring object is measured; the processor is connected to the physiological signal sensor and the non-invasive blood pressure measurement device, and is used to execute the blood pressure monitoring method as described above.

The blood pressure monitoring method and monitoring device of the embodiments of the present application monitor the blood pressure state of the monitoring object according to the pulse wave transit time when the monitoring object is in a sleeping state or a static state, and can avoid disturbing the monitoring object while ensuring continuous monitoring.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 shows a schematic flowchart of a blood pressure monitoring method according to an embodiment of the present application;

Fig. 2 shows a schematic flowchart of a blood pressure monitoring method according to another embodiment of the present application;

Fig. 3 shows a schematic flowchart of a blood pressure monitoring method according to yet another embodiment of the present application;

Fig. 4 shows a schematic block diagram of a monitoring device according to an embodiment of the present application;

FIG. 5 shows a schematic diagram of a specific structure of a monitoring device according to an embodiment of the present application;

Fig. 6 shows a schematic block diagram of a monitoring device according to another embodiment of the present application.

Detailed ways

In order to make the objects, technical solutions, and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here. Based on the embodiments of the present application described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

In the following description, numerous specific details are given in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present application.

It should be understood that the present application can be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the/the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the terms "consists of" and/or "comprising", when used in this specification, identify the presence of stated features, integers, steps, operations, elements and/or parts, but do not exclude one or more other Presence or addition of features, integers, steps, operations, elements, parts and/or groups. As used herein, the term "and/or" includes any and all combinations of the associated listed items.

In order to thoroughly understand the application, a detailed structure will be provided in the following description to explain the technical solution proposed by the application. Alternative embodiments of the present application are described in detail as follows, however, the present application may have other implementations besides these detailed descriptions.

In the following, firstly, a blood pressure monitoring method according to an embodiment of the present application will be described with reference to FIG. 1 , and FIG. 1 shows a schematic flowchart of a blood pressure monitoring method 100 according to an embodiment of the present application.

As shown in Figure 1, the blood pressure monitoring method 100 of the embodiment of the present application includes the following steps:

In step S110, identify the physical state of the monitoring object;

In step S120, when it is recognized that the physical state of the monitoring object is a sleeping state or a resting state, the physiological signal sensor of the monitoring object is used to collect the physiological signal of the monitoring object, and the physiological signal includes at least a blood oxygen signal ;

In step S130, the pulse transit time of the monitored subject is determined according to the physiological signal, and the blood pressure state of the monitored subject is monitored according to the pulse transit time.

In the embodiment of the present application, an intelligent decision is made based on the physical state of the monitoring object whether to start the blood pressure state monitoring based on the pulse wave transit time, and the blood pressure state of the monitoring object is detected according to the pulse wave transit time when the monitoring object is in a sleeping state or in a static state. On the one hand The blood pressure status can be continuously detected to ensure the safety of the monitored object, and on the other hand, it can avoid interference to the monitored object by starting the non-invasive blood pressure measurement device when the monitored object is resting.

Specifically, when identifying the physical state of the monitored object, it can be identified whether the monitored object is in a static state, which is a non-moving state; it can also be identified whether the monitored object is in a sleeping state. In some embodiments, it may also first identify whether the monitored object is in a static state, and if the monitored object is in a static state, it may further identify whether the monitored object is in a sleeping state.

Exemplarily, the way of identifying the physical state of the monitoring object includes at least one of the following: identifying the physical state according to the physiological signal of the monitoring object; identifying the physical state according to the motion signal collected by the motion sensor worn by the monitoring object; The body state can be identified by the signals collected by the sensors in the bed; the body state can be identified by the signals collected by the radar or image acquisition device arranged around the monitored object.

Wherein, the physiological signals of the monitoring object include electrocardiographic signals, blood oxygen signals, respiratory signals, and the like. Whether the monitored object is in a static state or in a sleeping state can be judged according to the time-domain or frequency-domain characteristics of the physiological signal. In some embodiments, physiological signals can be input into a pre-trained machine learning model to determine whether the monitored subject is in a sleep state.

Motion sensors worn by monitoring subjects include gyroscopes, accelerometers, and the like. Exemplarily, the motion sensor and the physiological sensor for detecting physiological signals may be integrated in a mobile monitoring device worn by the monitoring subject. According to the motion signal collected by the motion sensor, it can be judged whether the current state of the monitored object is a motion state or a static state.

The sensors installed in the monitored bed include but are not limited to pressure sensors. The pressure sensor can sense whether the monitored object stays in the bed, thereby judging whether the monitored object is in a sleeping state or a static state. The sensors installed in the monitored bed may also include infrared sensors, temperature sensors, and the like.

The radar installed around the monitoring object can detect the information of the monitoring object through electromagnetic waves. It emits electromagnetic waves and receives echoes to obtain information such as the distance, azimuth, movement speed, and amplitude of the monitoring object, thereby judging whether the monitoring object remains stationary. For example, the radar can include a non-contact medical monitoring radar. In addition to judging whether the monitored object remains still, the breathing and heartbeat of the human body will cause the chest to rise and fall regularly, and these physiological feature information will be modulated in the reflected electromagnetic waves. , therefore, the non-contact medical monitoring radar can also extract and separate physiological information from the echoes. The image acquisition device can continuously collect images within the target range at a certain frequency, and can judge whether the monitoring object is still by recognizing the image; by recognizing the facial expression of the monitoring object in the image, it can also judge whether the monitoring object is in a sleeping state .

When it is recognized that the body state of the monitored object is a sleep state or a static state, the blood pressure is monitored based on the pulse wave transit time. Specifically, the physiological signal of the monitoring object is collected by the physiological signal sensor worn by the monitoring object, the pulse wave transit time of the monitoring object is determined according to the physiological signal, and the blood pressure state of the monitoring object is monitored according to the pulse wave transit time. Conversely, due to the excessive influence of the exercise state on the pulse wave transit time, if the body state of the monitored object is identified as the exercise state, the blood pressure monitoring based on the pulse wave transit time will be stopped to reduce false alarms.

The pulse wave transit time is the time it takes for the pulse wave to travel between two points in the human body. In order to obtain the pulse wave transit time, at least two physiological signals of the monitoring object need to be obtained. The at least two physiological signals in the embodiment of the present application may be at least two blood oxygen signals. Wherein, the blood oxygen signal is a photoelectric signal collected by the blood oxygen sensor, specifically, the blood oxygen sensor radiates light of different wavelengths into the tissue area of the monitoring object, and detects the light signal sent/reflected by the tissue area. During each heartbeat, the contraction and expansion of blood vessels will affect the transmission or reflection of light, so the photoelectric signal can reflect the characteristics of blood flow, and the pulse wave signal generated by the light absorption of the tissue area can be extracted from the photoelectric signal. Processing the pulse wave signal can extract the pulse wave waveform. By comparing the pulse wave waveforms obtained from the two blood oxygen signals, the pulse wave transit time between the measurement positions of the two blood oxygen signals can be obtained.

The at least two physiological signals in the embodiment of the present application may also include at least one blood oxygen signal and at least one ECG signal. The ECG signal is the signal collected by the ECG sensor. The peak value of the ECG signal comes from the contraction of the ventricle, and the peak value of the pulse wave signal comes from the contraction of the blood vessel. Therefore, according to the ECG signal and the pulse wave signal, it can be obtained that the blood arrives after being sent from the heart. The transmission time of the blood oxygen signal measurement position, that is, the pulse wave transit time.

The linear relationship between pulse wave transit time and blood pressure is relatively stable in a short period of time, but it is not fixed in a long time, so the accuracy of the absolute value of blood pressure estimated based on pulse wave transit time is limited. The embodiment of the present application monitors the blood pressure state of the monitored object according to the pulse wave transit time, that is, monitors the relative blood pressure state of the monitored object according to the pulse wave transit time, and judges whether the blood pressure state of the monitored object fluctuates too much without outputting Absolute value of blood pressure. Specifically, the blood pressure state includes the variation range of blood pressure. If the blood pressure changes too much in a short period of time, it is determined that the blood pressure state of the monitored object is abnormal.

In one embodiment, when monitoring the blood pressure state of the monitored object according to the pulse wave transit time, the blood pressure state of the monitored object can be continuously monitored, that is, each time a blood pressure value is obtained, the blood pressure state is judged once, thereby avoiding Missing worsening events. In another embodiment, when the blood pressure state of the monitoring object is monitored according to the pulse wave transit time, the blood pressure state of the monitoring object may be monitored according to a preset time interval, so as to avoid occupying too many computing resources.

Wherein, the length of the preset time interval may be a fixed length, for example, the judgment of the blood pressure state is performed every ten minutes. Alternatively, the length of the preset time interval can be variable, that is, the frequency of blood pressure monitoring can be adjusted adaptively. In one embodiment, when the preset time interval has a variable length, the length of the preset time interval can be adjusted according to the historical trend of the monitored subject's blood pressure state. If the fluctuation degree of the blood pressure state of the monitored object increases, the preset time interval is shortened and the monitoring frequency is increased to ensure the safety of the monitored object. Conversely, if the blood pressure of the monitored subject remains stable, the preset time interval can be appropriately increased.

In one embodiment, in the process of monitoring the blood pressure state of the monitored object according to the pulse wave transit time, if an abnormal blood pressure state is detected, the non-invasive blood pressure measurement device (NIBP) can also be started to monitor the blood pressure value of the monitored object. Measurement. The non-invasive blood pressure measurement device binds an inflatable and deflated cuff to the limbs of the human body, such as the upper arm; inflates to make the pressure in the cuff higher than the systolic pressure, and then gradually deflates according to a certain step length, each deflation The rear cuff creates a stable pressure state that lasts for a certain period of time. In each stable pressure state, the pressure sensor detects the pressure of the stable pressure state, as well as the pressure fluctuations caused by the pulse of the human body, that is, shock waves. Generally, in each pressure state, when two consecutive normal shock waves are detected, or the longest duration of the pressure state reaches the set threshold, the cuff is deflated to make the cuff enter the next stable pressure state. For any stable pressure state, according to the shock wave detected in the stable pressure state, an amplitude value representing the shock wave in the pressure state can be calculated; by analyzing the amplitude value of the shock wave in each stable pressure state, The blood pressure value of the human body can be obtained. The accuracy of the non-invasive blood pressure measurement device is relatively high. When the abnormal blood pressure status is detected, the non-invasive blood pressure measurement device can be activated to further determine whether the blood pressure status of the monitored subject is indeed abnormal, and provide specific blood pressure values for the reference of the monitored subject or medical staff.

In one embodiment, the non-invasive blood pressure measurement device can also be activated according to a preset period to periodically measure the blood pressure value of the monitored subject. Exemplarily, the blood pressure value measured by the non-invasive blood pressure measurement device can also be used to calibrate the linear relationship between pulse wave transit time and blood pressure.

Further, if the non-invasive blood pressure measurement device is started according to the preset cycle, and the blood pressure value of the monitoring object is periodically measured, when the preset measurement time point of the non-invasive blood pressure measurement device is reached, the blood pressure state obtained based on the pulse wave transit time can be , to determine whether to start the non-invasive blood pressure measurement device, and perform periodic measurement at preset measurement time points, so as to reduce disturbance to the monitoring object. For example, if the blood pressure state obtained based on the pulse wave transit time is an abnormal state, or close to an abnormal state, start the non-invasive blood pressure measurement device to perform periodic measurement at preset measurement time points; if the blood pressure state obtained based on the pulse wave transit time is If it is in a normal state and the security level is high, the non-invasive blood pressure measurement device will not be activated.

Further, if the non-invasive blood pressure measurement device is started according to the preset period, in the process of monitoring the blood pressure state of the monitored subject according to the pulse wave transit time, if an abnormal blood pressure state is detected and the preset measurement of the non-invasive blood pressure measurement device has not been reached At the time point, start the non-invasive blood pressure measurement device to measure the blood pressure value of the monitoring object in an emergency, so as to further confirm the blood pressure status of the monitoring object and provide accurate blood pressure value for medical staff as a reference.

In one embodiment, the control parameters of the non-invasive blood pressure measurement device can also be adjusted according to the blood pressure state, such as the inflation target pressure, the time interval for non-invasive blood pressure measurement, etc., so as to improve the accuracy of non-invasive blood pressure measurement.

The blood pressure monitoring method 100 of the embodiment of the present application monitors the blood pressure state of the monitored subject according to the pulse wave transit time when the monitored subject is in a sleeping state or a static state, and can avoid disturbing the monitored subject while ensuring continuous monitoring.

The embodiment of the present application also provides a blood pressure monitoring method, see FIG. 2, the blood pressure monitoring method 200 includes the following steps:

In step S210, the physiological signal of the monitoring object is collected through the physiological signal sensor worn by the monitoring object, and the physiological signal includes at least a blood oxygen signal;

In step S210, determine the pulse transit time of the monitored subject according to the physiological signal, and monitor the blood pressure state of the monitored subject according to the pulse transit time;

In step S220, it is judged according to the blood pressure state whether it is necessary to start the non-invasive blood pressure measurement device;

In step S230, when it is judged that the non-invasive blood pressure measurement device needs to be activated, the physical state of the monitoring object is identified;

In step S240, when the physical state meets the preset requirements, the non-invasive blood pressure measurement device is activated to measure the blood pressure value of the monitoring object.

The blood pressure monitoring method 200 of this embodiment monitors the blood pressure state of the monitored object according to the pulse wave transit time in a normal state, and when the blood pressure state is abnormal and the physical state of the monitored object meets the preset requirements, the non-invasive blood pressure measurement device is activated to Monitor the blood pressure value of the subject for measurement

In one embodiment, the monitoring object's body state meeting the preset requirements includes: the monitoring object is in an awake state, and the posture of the monitoring object is a preset posture. The preset posture may be a standard posture for non-invasive blood pressure measurement, such as keeping the arm height at the same level as the heart. In this embodiment, the non-invasive blood pressure measurement device is activated for blood pressure measurement only when the monitored object is awake and maintains a preset posture, and the non-invasive blood pressure measurement device is not turned on when the monitored object is in a sleeping state, or the posture of the monitored object does not conform to the preset posture. Therefore, on the one hand, the accuracy of the measurement result can be guaranteed, and on the other hand, the monitoring object maintains a preset posture to indicate that it is ready for blood pressure measurement, so that the problem of disturbing the monitoring object's rest can be avoided.

In one embodiment, the posture of the monitoring object can be identified based on motion signals collected by a motion sensor worn by the monitoring object. Exemplarily, the motion sensor includes a first motion sensor worn on the arm of the monitoring object and a second motion sensor worn on the torso of the monitoring object. According to the first motion signal and the second motion signal, the absolute angle and acceleration of the monitored object can be obtained, and then the motion state of the subject, such as walking, running or standing still, can be obtained, and the comparison between the first motion sensor and the second motion sensor From the relative angle, the posture of the monitored object can be known, for example, whether the monitored object keeps the arm height at the same level as the heart.

According to the blood pressure monitoring method 200 of the embodiment of the present application, the blood pressure state of the monitored object is monitored according to the pulse wave transit time in a normal state, and the blood pressure state indicates that a non-invasive blood pressure measurement device needs to be activated, and the physical state of the monitored object meets the preset requirements When the time comes, start the non-invasive blood pressure measurement device to measure the blood pressure value of the monitoring object, so that the non-invasive blood pressure measurement device can be activated when it is necessary and the monitoring object is ready. On the one hand, it can ensure the safety of the monitoring object, and on the other hand, it can reduce Disturbance to the subject of monitoring.

The embodiment of the present application also provides a blood pressure monitoring method, as shown in FIG. 3 , the blood pressure monitoring method 300 includes the following steps:

In step S310, identify the physical state of the monitoring object;

In step S320, when it is recognized that the physical state of the monitoring object is a sleep state, the physiological signal sensor of the monitoring object is used to collect the physiological signal of the monitoring object, and the pulse of the monitoring object is determined according to the physiological signal wave transit time, and monitor the blood pressure of the monitored subject according to the pulse wave transit time, wherein the physiological signal includes at least a blood oxygen signal;

In step S330, when it is recognized that the monitored subject's physical state is awake, the monitored subject's blood pressure is measured by the non-invasive blood pressure measuring device worn by the monitored subject.

According to the blood pressure monitoring method 300 of the embodiment of the present application, when the monitoring object is in a sleeping state, the blood pressure state is monitored according to the pulse wave transit time; when the monitoring object is in an awake state, the blood pressure value is measured by a non-invasive blood pressure measuring device, which can It avoids disturbing the sleep of the monitoring object, and at the same time, can ensure the continuous monitoring of the monitoring object.

Next, a monitoring device 400 in an embodiment of the present application will be described with reference to FIG. 4 . As shown in FIG. 4 , the monitoring device 400 includes a physiological signal sensor 410 and a processor 420 . The physiological signal sensor 410 is used to collect the physiological signal of the monitoring object, and the physiological signal sensor 410 includes at least a blood oxygen sensor, which is used to collect the blood oxygen signal. In one embodiment, the physiological signal sensor 410 includes at least two blood oxygen sensors to collect at least two blood oxygen signals. In another embodiment, the physiological signal sensor 410 includes at least one blood oxygen sensor and at least one electrocardiogram sensor, which are used to collect at least one blood oxygen signal and at least one electrocardiogram signal respectively. The physiological sensor 410 may also include a sensor for collecting other physiological signals, such as a body temperature sensor, a respiration sensor, and the like.

The processor 420 is connected to the physiological signal sensor 410, and is used to execute the blood pressure monitoring method 100 described above, that is, calculate the pulse wave transit time according to the physiological signal collected by the physiological signal sensor 410, and monitor the blood pressure state of the monitored object according to the pulse wave transit time. monitor. Processor 420 may include one or more embedded processors, processor cores, microprocessors, logic circuits, hardware finite state machines (FSMs), digital signal processors (DSPs), graphics processing units (GPUs), or combinations thereof . The processor 420 can be used to execute program instructions stored in the memory, so that the processor 420 executes the blood pressure monitoring method 100 .

The monitoring device 400 can be implemented as a mobile monitoring device, which is a monitoring device capable of performing mobile monitoring on a monitoring object, and the mobile monitoring device is a wearable mobile monitoring device worn on the body of the monitoring object. The mobile monitoring device can also communicate with bedside monitoring equipment such as a monitor or a central monitoring system, and transmit the status of the monitored object to the bedside monitoring equipment or central monitoring system for display.

Figure 5 shows a mobile monitoring device, as shown in Figure 5, the physiological signal sensor 410 includes a blood oxygen sensor 510 worn on the finger of the monitoring object and an ECG sensor 520 worn on the torso of the monitoring object, and a monitoring object wrist A host wearing a mobile monitoring device is provided with a processor 420, the blood oxygen sensor 510 and the ECG sensor 520 respectively send the blood oxygen signal and the ECG signal to the processor 420 in the host, and the processor 420 monitors the blood pressure status. monitor. In some embodiments, the mobile monitoring device further includes a non-invasive blood pressure measurement device 530, which may specifically include a cuff-type non-invasive blood pressure measurement device worn on the arm of the monitored subject.

In some embodiments, the monitoring device further includes a motion sensor, and the motion sensor may include a first sensor disposed in the host computer at the wrist of the monitoring subject. Exemplarily, the motion sensor may also include a second sensor disposed at the torso of the monitoring subject. . The motion sensor communicates with the processor in the host, and sends the collected motion signal to the processor, and the processor recognizes the motion state of the monitored object according to the motion signal.

The monitoring device 400 of the embodiment of the present application is used to implement the blood pressure monitoring method 100, so it can also avoid disturbing the monitoring object under the premise of ensuring continuous monitoring.

Next, a monitoring device 600 in another embodiment of the present application will be described with reference to FIG. 6 . As shown in FIG. 6 , the monitoring device 600 includes a physiological signal sensor 610 , a non-invasive blood pressure measurement device 620 and a processor 630 . The physiological signal sensor 610 is used to collect the physiological signal of the monitoring object, and the physiological signal sensor 610 includes at least a blood oxygen sensor, which is used to collect the blood oxygen signal. In one embodiment, the physiological signal sensor 610 includes at least two blood oxygen sensors to collect at least two blood oxygen signals. In another embodiment, the physiological signal sensor 610 includes at least one blood oxygen sensor and at least one electrocardiogram sensor, which are used to collect at least one blood oxygen signal and at least one electrocardiogram signal respectively. The non-invasive blood pressure measurement device 620 is used to measure the blood pressure value of the monitored subject. Specifically, the non-invasive blood pressure measurement device 620 may be a cuff-type non-invasive blood pressure measurement device. During the deflation process, as the pressure of the cuff decreases, the pulsation of the arterial wall will generate shock waves in the gas in the cuff, and the blood pressure value can be obtained by analyzing the shock waves.

The processor 630 is connected to the physiological signal sensor 610 and the non-invasive blood pressure measurement device 620, and is used to execute the blood pressure monitoring method 200 or the blood pressure monitoring method 300 described above, and decides to perform the blood pressure monitoring method based on the physiological signal collected by the physiological signal sensor 610 according to the physical state of the monitoring object. Blood pressure monitoring or enabling the non-invasive blood pressure measurement device 620 for blood pressure measurement.

The monitoring device 600 of the embodiment of the present application is used to implement the blood pressure monitoring method 200 or the blood pressure monitoring method 300, so it can also reduce disturbance to the monitoring object on the premise of ensuring continuous monitoring.

In addition, the embodiment of the present application also provides a computer storage medium on which a computer program is stored. One or more computer program instructions can be stored on the computer-readable storage medium, and the processor can execute the program instructions stored in the storage device to realize the functions (implemented by the processor) and/or other desired functions in the embodiments of the present application herein. functions, for example, to execute the corresponding steps of the blood pressure monitoring method according to the embodiment of the present application, various application programs and various data, such as various data used and/or generated by the application programs, may also be stored in the computer-readable storage medium wait.

For example, computer storage media may include, for example, a memory card of a smartphone, a memory component of a tablet computer, a hard disk of a personal computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disk read-only Memory (CD-ROM), USB memory, or any combination of the above storage media.

Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above-described example embodiments are exemplary only, and are not intended to limit the scope of the application thereto. Various changes and modifications can be made therein by those of ordinary skill in the art without departing from the scope and spirit of the application. All such changes and modifications are intended to be included within the scope of this application as claimed in the appended claims.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another device, or some features may be omitted, or not implemented.

In the description provided herein, numerous specific details are set forth. However, it is understood that the embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be understood that in the description of the exemplary embodiments of the application, in order to streamline the application and to facilitate understanding of one or more of the various inventive aspects, various features of the application are sometimes grouped together into a single embodiment, figure , or in its description. This method of application, however, is not to be interpreted as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Rather, as the corresponding claims reflect, the inventive point lies in that the corresponding technical problem may be solved by using less than all features of a single disclosed embodiment. Thus, the claims following this Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this application.

It will be appreciated by those skilled in the art that all features disclosed in this specification (including accompanying claims, abstract and drawings) and all features of any method or apparatus so disclosed may be used in any combination, except where the features are mutually exclusive. process or unit. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

In addition, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the present application. and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

The various component embodiments of the present application may be realized in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some modules according to the embodiments of the present application. The present application can also be implemented as an apparatus program (for example, a computer program and a computer program product) for performing a part or all of the methods described herein. Such a program implementing the present application may be stored on a computer-readable medium, or may be in the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

Claims (16)

1. A blood pressure monitoring method, characterized in that the method comprises: Identify the physical state of the monitored object; When it is recognized that the physical state of the monitoring object is a sleeping state or a resting state, the physiological signal of the monitoring object is collected through a physiological signal sensor worn by the monitoring object, and the physiological signal includes at least a blood oxygen signal; The pulse wave transit time of the monitoring object is determined according to the physiological signal, and the blood pressure state of the monitoring object is monitored according to the pulse wave transit time. 2 . The method according to claim 1 , wherein the blood pressure status includes the variation range of blood pressure. 3 . 3. The method according to claim 1, wherein the monitoring the blood pressure state of the monitored subject according to the pulse wave transit time comprises: Continuously monitor the blood pressure state of the monitoring object, or monitor the blood pressure state of the monitoring object at preset time intervals. 4. The method according to claim 3, wherein the length of the preset time interval is fixed or variable. 5. The method according to claim 4, wherein when the preset time interval is of variable length, the method further comprises: adjusting the preset time interval according to the historical trend of the blood pressure state of the monitored subject. The length of the time interval is adjusted. 6. The method of claim 1, further comprising: In the process of monitoring the blood pressure state of the monitoring object according to the pulse wave transit time, if an abnormal blood pressure state is detected, the non-invasive blood pressure measurement device is activated to measure the blood pressure value of the monitoring object. 7. The method of claim 1, further comprising: Start the non-invasive blood pressure measurement device according to the preset cycle, and periodically measure the blood pressure value of the monitoring object; and In the process of monitoring the blood pressure state of the monitored subject according to the pulse wave transit time, if an abnormal blood pressure state is detected and the preset measurement time point of the non-invasive blood pressure measurement device has not been reached, the non-invasive blood pressure measurement device is started, and the The blood pressure value of the above-mentioned monitoring objects is used for emergency measurement. 8. The method of claim 1, further comprising: Start the non-invasive blood pressure measurement device according to the preset cycle, and periodically measure the blood pressure value of the monitoring object, wherein when the preset measurement time point of the non-invasive blood pressure measurement device is reached, judge whether to start the non-invasive blood pressure measurement device according to the blood pressure state, Periodic measurement at preset measurement time points is performed. 9. The method according to any one of claims 6-8, further comprising: adjusting control parameters of the non-invasive blood pressure measurement device according to the blood pressure state. 10. The method according to claim 1, wherein the manner of identifying the physical state of the monitored object comprises at least one of the following: Identifying the physical state of the monitoring object according to the physiological signal and/or the motion signal collected by the motion sensor worn by the monitoring object; Identifying the physical state of the monitoring object according to the signal collected by the sensor arranged in the bed of the monitoring object; The physical state of the monitored object is identified according to the signals collected by the radar or the image acquisition device arranged around the monitored object. 11. The method according to claim 1, wherein the physiological signal includes at least two blood oxygen signals, or, the physiological signal includes at least one blood oxygen signal and at least one ECG signal. 12. A blood pressure monitoring method, characterized in that the method comprises: collecting physiological signals of the monitoring object through a physiological signal sensor worn by the monitoring object, the physiological signals at least including a blood oxygen signal; determining the pulse transit time of the monitored subject according to the physiological signal, and monitoring the blood pressure state of the monitored subject according to the pulse transit time; judging whether it is necessary to start the non-invasive blood pressure measurement device according to the blood pressure state; When it is judged that the non-invasive blood pressure measurement device needs to be activated, the physical state of the monitoring object is identified; When the physical state meets the preset requirements, the non-invasive blood pressure measurement device is activated to measure the blood pressure value of the monitored subject. 13. The method according to claim 12, wherein the physical state meets preset requirements, including: The monitoring object is in an awake state, and the posture of the monitoring object is a preset posture. 14. A blood pressure monitoring method, characterized in that the method comprises: Identify the physical state of the monitored object; When it is recognized that the physical state of the monitoring object is a sleep state, collecting the physiological signal of the monitoring object through the physiological signal sensor worn by the monitoring object, and determining the pulse wave transit time of the monitoring object according to the physiological signal, and monitoring the blood pressure of the monitored subject according to the pulse wave transit time, wherein the physiological signal at least includes a blood oxygen signal; When it is recognized that the physical state of the monitoring object is awake, the blood pressure value of the monitoring object is measured by the non-invasive blood pressure measurement device worn by the monitoring object. 15. A monitoring device, characterized in that the monitoring device comprises: The physiological signal sensor is used to collect the physiological signal of the monitoring object, and the physiological signal includes at least a blood oxygen signal; A processor, connected to the physiological signal sensor, for executing the blood pressure monitoring method according to any one of claims 1-11. 16. A monitoring device, characterized in that the monitoring device comprises: The physiological signal sensor is used to collect the physiological signal of the monitoring object, and the physiological signal includes at least a blood oxygen signal; A non-invasive blood pressure measuring device, used for measuring the blood pressure value of the monitoring object; A processor, connected to the physiological signal sensor and the non-invasive blood pressure measuring device, for executing the blood pressure monitoring method according to any one of claims 12 to 14.

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