TWI709145B - Physiology detecting method and device of the same - Google Patents

Abstract

A physiology detecting method and device of the same, applied on a physiology detecting device being worn by a subject. The physiology detecting device includes a physiological sensor used in sensing so as to obtain a physiological signal relating to the subject; a motion sensor used in sensing so as to obtain a motion signal associated with a motion state of the physiology detecting device; a processor used in receiving the physiological signal and the motion signal, wherein when the processor determines the motion state is a resting state and reaches a first threshold period according to the motion signal, and the physiological signal is within an ideal range and reaches a second threshold period according to a physiological history data, the processor generates and transmits a notification to an output component; and a memory connecting to the processor to store the physiological history data.

Description

Physiological monitoring method and physiological monitoring device

The present invention relates to a physiological monitoring method and a physiological monitoring device, and particularly relates to a physiological monitoring method and a physiological monitoring device that provide suggestions based on the physiological state and exercise state.

When measuring blood pressure, the subject’s resting state is one of the key factors. Before that, the subject could only adjust his state according to the instructions of the medical staff or the instructions in the manual of the electronic blood pressure monitor. An objective and accurate measurement device or method is used to record and determine the state of the user. Therefore, whether the blood pressure is measured in the office or at home, it may be due to masked hypertension or white robe effect. Coat Effect), and cannot truly reflect the physical condition of the subject.

Therefore, most of the wearable devices with the function of measuring physiological signals currently have technology that advises the subject to adjust the current state, such as telling the subject to stop exercising and relax, or adjusting the subject's posture. However, these wearable devices do not determine whether the testee's rest time or the time to maintain a static state reaches the rest time prescribed by the doctor, so that the testee still has to judge whether he has enough rest.

And in the current wearable devices for measuring physiological signals, the heart rate is used to judge whether the subject is in a state suitable for measuring blood pressure, and most of them are based on the average resting heart rate published by the Ministry of Health and Welfare or medical research institutions of the country. , But this average reference value ignores the individual differences between the subjects. That is, if the subject’s natural heart rate is low, or the subject is a hypertensive patient, it may be due to his resting heart rate (Resting Heart Rate). Rate) does not fall within the recognized resting heart rate range and is not suitable for this wearable device.

In view of the above, the present invention provides a physiological monitoring method and a physiological monitoring device that meet the above requirements.

The physiological monitoring method according to an embodiment of the present invention is implemented on a physiological monitoring device worn by a subject, and includes: performing sensing to obtain a physiological signal associated with the subject; performing sensing to obtain a physiological signal associated with the subject; A motion signal of a motion state of the physiological monitoring device; determine whether the motion state is in a static state for a first threshold time according to the motion signal; determine whether the physiological signal is maintained within an ideal range according to a historical physiological data A second threshold time; and when it is determined that the motion state is the static state for the first threshold time and the physiological signal is maintained within the ideal range for the second threshold time, the historical physiological data is updated according to the physiological signal, and Generate a notification to an output element.

According to an embodiment of the present invention, a physiological monitoring device for a subject to wear includes: a physiological sensor for sensing to obtain a physiological signal associated with the subject; a motion sensor for sensing Measuring to obtain a motion signal related to a motion state of the physiological monitoring device; a processor connected to the physiological sensor and the motion sensor to receive the physiological signal and the motion signal, when the processor is based on the motion The signal determines that the motion state is in a static state for a first threshold time, and based on a historical physiological data to determine that the physiological signal is maintained in an ideal range for a second threshold time, the processor generates a notification; an output element, The processor is electrically connected to receive the notification, and the output device displays or outputs the notification; and a memory element is connected to the processor and used to store the historical physiological data.

The above description of the content of the disclosure and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the present invention, and to provide a further explanation of the patent application scope of the present invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable anyone familiar with the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of patent application and the drawings Anyone who is familiar with the relevant art can easily understand the related purpose and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention by any viewpoint.

Please refer to FIG. 1, which is a block diagram of a physiological monitoring device 1 according to an embodiment of the present invention. The physiological monitoring device 1 of the present invention is worn by a subject. The physiological monitoring device 1 includes a motion sensor 11, a physiological sensor 12, a processor 13, an output element 14 and a memory element 15. .

Please continue to refer to FIG. 1, the motion sensor 11 performs sensing to obtain a motion signal related to a motion state of the physiological monitoring device 1. In more detail, the physiological monitoring device 1 is for the subject to wear, so exercise The sensor 11 senses the motion state of the physiological monitoring device 1 to represent the current motion state of the subject. Wherein, the motion sensor 11 may be an inertial measurement unit (IMU), such as a gravity sensor (G-sensor), an acceleration sensor (Accelerometer), a gyroscope (Gyroscope), and/or Other sensors that can be installed in the physiological monitoring device 1 and obtain the motion state of the physiological monitoring device 1 or the subject.

Please continue to refer to FIG. 1. The physiological sensor 12 performs sensing to obtain a physiological signal associated with the subject. For example, the physiological sensor 12 may be a photoplethysmography (PPG) sensor , Body temperature sensor, electrocardiogram (ECG/EKG) sensor, heart rate sensor, and/or other sensors that can be set in the physiological monitoring device 1 and obtain physiological signals associated with the subject, the present invention The middle physiological sensor 12 is preferably a heart rate sensor, but the invention is not limited to this. For the convenience of description, the following description uses the physiological sensor 12 to sense the heart rate of the subject.

Please continue to refer to FIG. 1, the processor 13 is connected to the physiological sensor 12 and the motion sensor 11 to receive the physiological signal and the motion signal. The processor 13 then determines whether the motion state is a static state and reaches a first threshold according to the motion signal. Time, and judging whether the physiological signal is maintained within an ideal range for a second threshold time based on a historical physiological data. In other words, the processor 13 estimates the exercise state of the subject wearing the physiological monitoring device 1 according to the exercise signal, so as to determine whether the subject remains in a static or resting state for the first threshold time (for example, 30 minutes) ; And the processor 13 determines whether the heart rate of the testee is within the ideal range and continues for the second threshold time (for example, 5 minutes) according to the historical physiological data associated with the testee. Wherein, the processor 13 may be a programmable processor or controller with a time accumulation function, such as a microprocessor (Microprocessor), a microcontroller (Microcontroller), a digital signal processor (Digital Signal Processor, DSP) or a special Application of integrated circuit (Application Specific Integrated Circuit, ASIC), etc.

When the processor 13 determines that the subject remains in a static state for the first threshold time and that the physiological signal remains within the ideal range for the second threshold time, the processor 13 generates a notification and outputs the notification to the output element 14. That is, when the processor 13 determines that the physiological signal and the exercise signal meet the above conditions, it means that the subject is in a resting condition, and the heart rate is within the ideal range of resting heart rate, the processor 13 sends a notification To the output element 14 to inform the subject that the blood pressure measurement can be started. Among them, the output element 14 may be the user interface itself. In this embodiment, it is preferably a display screen or a touch panel of the physiological monitoring device 1, and the output element 14 may also be a signal transmitter, such as a wireless signal connected to a mobile phone. The transmitter is convenient for using a mobile phone as a user interface, but the present invention is not limited to this.

Among them, the above-mentioned historical physiological data is stored in the memory element 15 and is integrated by the subject’s past resting heart rate within the ideal range. In more detail, the historical physiological data may be the average value of the past accumulated resting heart rate. , Or, for example, obtained by calculating the latest multiple resting heart rates. That is, when the processor 13 determines that the exercise state is in a static state for the first threshold time and that the physiological signal remains within the ideal range for the second threshold time, the processor 13 determines that the measured heart rate (physiological signal) is the resting heart rate (ie The heart rate value falls within the ideal range), the processor 13 updates the historical physiological data stored in the memory element 15 according to the resting heart rate. In practice, the way to update the historical physiological data can be, for example, to recalculate the average value, or use the resting heart rate to replace the earliest one of the aforementioned resting heart rates, and then calculate the current historical physiological data. In addition, the calculation method for updating the historical physiological data mentioned above can be not only calculating the arithmetic mean or geometric mean, but also based on the median, mode, or specific confidence interval based on the normal distribution. However, the present invention does not use the above The calculation method is limited.

In addition, when the processor 13 determines that the motion state is that the static state has not reached the first threshold time, or that the physiological signal remains within the ideal range and has not reached the second threshold time, it means that the subject has not been in the resting state for enough time or the subject is currently If the heart rate is not the resting heart rate, the processor 13 generates an adjustment suggestion notification to the output element 14. The adjustment suggestion notification in this embodiment may include reminding the subject to stop exercising, reminding the subject to at least how long to rest, or Remind the subject to relax, take a deep breath, etc.

Fig. 2 is a flowchart of a physiological monitoring method according to an embodiment of the present invention. The physiological monitoring method of FIG. 2 is implemented on a physiological monitoring device 1 worn by a subject. The method includes obtaining a motion signal in step S01, that is, the motion sensor 11 of the physiological monitoring device 1 performs sensing to obtain correlation An exercise signal on the exercise state of the physiological monitoring device 1 is used to estimate the exercise state of the subject. The physiological sensor 12 of the physiological monitoring device 1 obtains the physiological signal related to the subject in step S02, which means that the physiological sensor 12 obtains the heart rate value of the subject.

Once the motion sensor 11 obtains the motion signal, the processor 13 of the physiological monitoring device 1 will execute step S03: According to the motion signal, determine whether the motion state of the physiological monitoring device 1 is in a static state for a first threshold time. In other words, the processor 13 determines whether the subject remains stationary and reaches the first threshold time (for example, 30 minutes) according to the motion signal.

Similarly, once the physiological sensor 12 obtains the physiological signal, the processor 13 of the physiological monitoring device 1 will execute step S05: judging whether the physiological signal is maintained within the ideal range for the second threshold time according to the historical physiological data. That is, the processor 13 uses the subject’s past resting heart rate as a reference to determine whether the heart rate obtained in step S02 is the resting heart rate and reaches the second threshold time (for example, 5 minutes), and maintains the resting state for the first threshold time The time period of preferably includes a time period that is maintained within the ideal range and reaches the second threshold time. For example, the processor 13 determines whether the exercise state is maintained in a static state for 30 minutes (the time period when the first threshold time is reached), and whether the heart rate is maintained within the ideal range for 5 minutes (when the second threshold time is reached) Time period), and this 5 minutes is the last 5 minutes of the above 30 minutes.

Among them, the above-mentioned ideal range is preferably between 85% and 115% of the value of historical physiological data, but the ideal range can also be adjusted according to the needs of the subject, and the present invention is not limited thereto.

When the processor 13 determines that the subject has not maintained a stationary state for the first threshold time, or the subject’s heart rate has not been maintained at the resting heart rate for the second threshold time, the processor 13 generates an adjustment suggestion notification in step S04 The output element 14 is used to notify the subject to stop moving, or how long to remain stationary, etc.

Please refer to step S06. When the determination results of step S03 and step S05 are both "Yes", a notification is generated in step S07, otherwise, it returns to step S04 to generate an adjustment suggestion notification. In more detail, when it is judged that the exercise state is maintained at rest within 30 minutes, and the heart rate is judged to remain within the ideal range for the last 5 minutes of the 30 minutes, it is judged that the subject is at rest suitable for measuring blood pressure Status, and a notification is generated in step S07 to inform the subject that blood pressure measurement is possible; when only one of the two determination results of step S03 and step S05 is determined to be "Yes", then a corresponding adjustment suggestion notification is generated in step S04 . For example, when the processor 13 has judged that the judgment result of step S03 is "Yes", but has not received the judgment result of step S05, it can prompt the subject to continue to maintain a static posture by outputting an adjustment suggestion notification, and try Relax to lower the heart rate; in the same way, when the processor 13 has judged that the judgment result of step S05 is "Yes" but has not yet received the judgment result of step S03, it can prompt the testee to output an adjustment suggestion notification Continue to relax to keep the heart rate within the ideal range, and it is recommended that the subject maintain a static posture.

Please refer to FIG. 3, which is a flowchart of a physiological monitoring method according to another embodiment of the present invention. The operation process of the embodiment disclosed in FIG. 3 is the same as that in FIG. 2, except that the difference between the two is steps S01', S02', S08 and S09 in FIG. 3.

In this embodiment, the physiological monitoring device 1 obtains the exercise signal and the physiological signal through the motion sensor 11 and the physiological sensor 12 respectively within a predetermined period of time. Please continue to refer to FIG. 3, the motion sensor 11 of the physiological monitoring device 1 obtains the motion signal in the first period after the start of a predetermined period in step S01', and in step S02' in the first period after the start of the preset period The physiological signal is obtained by the physiological sensor 12 in two periods, and the first period includes the second period. In more detail, the length of the first period is at least equal to the first threshold time, and the length of the second period is at least equal to the second threshold time, and it is preferable that the first period and the second period end at the same time point. In other words, the physiological monitoring device 1 of this embodiment can estimate the time required to obtain the subject’s heart rate and exercise status based on the time the subject is expected to measure blood pressure, and can also determine the previous time based on the blood pressure measurement time. Whether the exercise status and heart rate are both at rest.

Please continue to refer to FIG. 3, when at least one of the exercise state or the heart rate value does not meet the aforementioned threshold condition of the stationary state, an adjustment suggestion notification is generated in step S04, and it is determined in step S08 whether the preset period is over. If the preset time period has ended, it means that the operation of judging whether the subject is in a state of measurable blood pressure has ended; if it is judged that the preset time period has not ended, continue to step S01' and S02' to obtain exercise signals and physiological signals .

Please continue to refer to steps S01' and S02' in Fig. 3. For example, if it is set in the physiological monitoring device 1 that the subject is to take a blood pressure measurement between 8 am and 11 a.m., the processor 13 of the physiological monitoring device 1 determines the subject according to the time period for measuring blood pressure It is necessary to maintain a stationary state for at least the first threshold time and the resting heart rate for the heart rate to reach the second threshold time during the period of 7:30 to 10:30 in the morning (ie, the preset time period described in this embodiment). In more detail, the motion sensor 11 obtains the motion signal from 7:30 to 8:00 in the morning (the first time period), and the physiological sensor 12 obtains the motion signal from 7:55 to 8:00 in the morning (the second time period) Obtain the heart rate value, and determine whether the exercise state between 7:30 and 8 am for 30 minutes (ie the first threshold time), and determine whether the heart rate value is between 7:55 and 8 o'clock Maintain the ideal range for 5 minutes (ie the second threshold time). If it is judged based on the exercise signal that the exercise state is in a static state between 7:30 and 8:00, and the heart rate value is maintained within the ideal range between 7:55 and 8 based on the physiological signal, the processor 13 A notification is generated at 8 o'clock to inform the subject that the blood pressure can be measured at this time.

According to the physiological monitoring method and physiological monitoring device disclosed in the present invention, the above-mentioned example can also be that the motion sensor 11 starts to obtain the motion signal at 7:30 in the morning, when the processor 13 determines from 7:30 to 7:30 according to the motion signal. The subjects are in a static state between 5:55, the processor 13 controls the motion sensor 11 to continue to obtain the motion signal for at least 8 o'clock, and controls the physiological sensor 12 to start to obtain the physiological signal at 7:55 It also lasts at least until 8 o'clock.

Please continue the above example. When the processor 13 determines that the exercise state and/or heart rate value does not meet the conditions at 8 o'clock, the processor 13 generates an adjustment suggestion notification in step S04 to notify the subject that the current state needs to be adjusted, and if If it is determined that the preset time period has not ended, it will return to steps S01' and S02' to obtain exercise signals and physiological signals.

Please continue with the above example. If the processor 13 determines that the subject is not in a state where blood pressure can be measured by 10:30, the adjustment suggestion notification generated by the processor 13 may include informing the subject of the next You need to relax and stay still for half an hour to measure your blood pressure at 11 o'clock.

The present invention can also be applied to determine whether the measured blood pressure value of the subject is accurate, that is, the subject can measure the blood pressure first, and the processor 13 of the physiological monitoring device 1 determines the time before the blood pressure is measured 30 Whether the subject’s rest status is adequate for one minute, and then determine whether the blood pressure value is worthy of reference.

The disclosed embodiment of the present invention is based on the heart rate value and exercise state of the subject to determine whether the subject is in a state where blood pressure can be measured. However, the present invention can also be based on other physiological states of the subject, such as body temperature, breathing Frequency, blood oxygen content, etc. are used to determine whether the physiological state falls within the ideal range suitable for measuring blood pressure. The present invention is not limited by the heart rate value.

In summary, the physiological monitoring method and the physiological monitoring device disclosed in the present invention use a physiological sensor to obtain a physiological signal related to the subject and a motion sensor to obtain a motion signal. However, the present invention can also be single The sensor performs sensing to obtain physiological signals and exercise signals, and the processor determines whether the subject is in a static state for the first threshold time based on the exercise signals, and determines whether the physiological signals are maintained within the ideal range for the first threshold based on historical physiological data. The second threshold time. When the processor determines that the exercise state is in a static state for the first threshold time and the physiological signal is maintained within the ideal range for the second threshold time, the processor generates a notification to notify the subject that the blood pressure can be measured. According to the physical monitoring method and physiological monitoring device disclosed in the present invention, in addition to more objective criteria for determining whether the subject is in a state where blood pressure can be measured, it can also generate an adjustment suggestion notification, that is, based on the subject’s current The state informs them how long they need to rest or make adjustments such as deep breathing and relaxation to return to a calm state.

According to the physiological monitoring method and the physiological monitoring device disclosed in the present invention, the subject can also measure blood pressure first, and the physiological monitoring device can then calculate whether the physiological signal and exercise status of the subject are consistent with the time before the blood pressure is measured. Threshold conditions (that is, the exercise state is in a static state for the first threshold time and the physiological signal is maintained within the ideal range for the second threshold time) to determine whether the blood pressure measured this time is referable.

In addition, after judging that the physiological signal and exercise status meet the threshold conditions, the processor of the physiological monitoring device updates the historical physiological data associated with the subject according to the physiological signals, which means that the historical physiological data meets the threshold conditions in the past For the integration of physiological signals, historical physiological data can be the average value of these physiological signals, or the value calculated from physiological signals with different proportions according to different measurement periods.

According to the present invention, the physiological monitoring device can also obtain physiological signals and exercise signals in a preset time period to actively determine whether the subject’s state meets the threshold condition before measuring blood pressure. If the subject is not in the state after the preset time period begins When the blood pressure can be measured, the physiological monitoring device will generate an adjustment suggestion notification, and continuously obtain another physiological signal and exercise signal for a preset period of time.

The effect of the present invention is to provide an objective physiological monitoring method and a physiological monitoring device to determine whether the subject is in a state where blood pressure can be measured before measuring blood pressure, that is, whether the subject has enough rest so that the subject can No need to think about whether you have enough rest and meet the state of blood pressure measurement.

In addition, the historical physiological data disclosed in the present invention can be used to establish a personal model associated with the subject, so that the subject whose heart rate is still high even in a resting state, such as a hypertensive patient, can also be used for the physiological monitoring of the present invention Device; and judging whether the physiological signal falls within the ideal range based on historical physiological data can also reduce the incidence of white robe effect and hidden hypertension.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. All changes and modifications made without departing from the spirit and scope of the present invention fall within the scope of patent protection of the present invention. For the scope of protection defined by the present invention, please refer to the attached patent scope.

1: Physiological monitoring device 11: Motion sensor 12: Physiological Sensor 13: processor 14: output components 15: memory element

Fig. 1 is a block diagram of a physiological monitoring device according to an embodiment of the present invention. FIG. 2 is a flowchart of a physiological monitoring method according to an embodiment of the present invention. FIG. 3 is a flowchart of a physiological monitoring method according to another embodiment of the present invention.

Claims (10)

A physiological monitoring method implemented in a physiological monitoring device worn by a subject includes: performing sensing to obtain a motion signal associated with a motion state of the physiological monitoring device; performing sensing to obtain a motion signal associated with the subject A physiological signal of the examinee, wherein the physiological signal is a heart rate value; according to the exercise signal, it is judged whether the exercise state is in a static state for a first threshold time; according to a historical physiological data, it is judged whether the physiological signal maintains an ideal Reach a second threshold time within the range; and when it is determined that the motion state is the static state for the first threshold time and the physiological signal remains within the ideal range for the second threshold time, the historical physiological signal is updated according to the physiological signal Data and generate a notification to an output component. The physiological monitoring method according to claim 1, wherein obtaining the physiological signal and obtaining the exercise signal include obtaining the exercise signal in a first period after the start of a predetermined period, and a period after the start of the predetermined period Obtain the physiological signal in the second period. The physiological monitoring method according to claim 2, wherein the second time period is within the first time period. The physiological monitoring method according to claim 2, wherein the method further comprises when determining that the motion state is the static state and has not reached the first threshold time or the physiological signal is maintained within the ideal range and has not reached the second threshold time, Generate an adjustment suggestion notification and output the adjustment suggestion notification to the output element. The physiological monitoring method according to claim 1, wherein the ideal range is between 85% and 115% of the value of the historical physiological data. A physiological monitoring device for a subject to wear, comprising: a physiological sensor for sensing to obtain a physiological signal related to the subject, wherein the physiological signal is a heart rate value; a motion sensor , Performing sensing to obtain a motion signal associated with a motion state of the physiological monitoring device; a processor connected to the physiological sensor and the motion sensor to receive the physiological signal and the motion signal, when the processor Judging that the movement state is in a static state for a first threshold time according to the movement signal, and judging that the physiological signal is maintained in an ideal range for a second threshold time according to a historical physiological data, the processor generates a notification; An output element is electrically connected to the processor to receive the notification, and the output device presents or outputs the notification; and a memory element is connected to the processor and used to store the historical physiological data. The physiological monitoring device according to claim 6, wherein when the processor determines that the motion state is the static state for the first threshold time and the physiological signal is maintained within the ideal range for the second threshold time, the processor The historical physiological data stored in the memory element is updated according to the physiological signal. The physiological monitoring device according to claim 6, wherein the motion sensor obtains the motion signal in a first period after the start of a predetermined period, and the physiological sensor obtains the motion signal in a first period after the start of the predetermined period Obtain the physiological signal in the second period. The physiological monitoring device according to claim 6, wherein when the processor determines that the motion state is that the static state has not reached the first threshold time or that the physiological signal remains within the ideal range and has not reached the second threshold time, the The processor generates an adjustment suggestion notification and outputs the adjustment suggestion notification to the output element. The physiological monitoring device according to claim 6, wherein the ideal range is between 85% and 115% of the value of the historical physiological data.

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