Blood pressure monitoring system

Abstract

The utility model provides a blood pressure monitoring system. The blood pressure monitoring system comprises a wrist strap type device, the wrist strap type device comprises a shell, a first signal collecting unit and a second signal collecting unit, the first signal collecting unit and the second signal collecting unit are arranged on the shell, and the first signal collecting unit and the second signal collecting unit are connected and jointly output first blood pressure data; the head-mounted device comprises a main body part which at least covers the eyes of the user and a fixing part which fixes the main body part on the head, the main body part is provided with a third signal acquisition unit and a fourth signal acquisition unit, and the third signal acquisition unit and the fourth signal acquisition unit are connected and jointly output second blood pressure data; the first signal acquisition unit and the third signal acquisition unit are connected and jointly output third blood pressure data; and the second signal acquisition unit and the fourth signal acquisition unit are connected and jointly output fourth blood pressure data. The blood pressure monitoring system can effectively reduce instability and errors of blood pressure monitoring.

Description

[0001] The present utility model claims the priority of a Chinese patent application with an application date of August 29, 2023, an application number of 202322328299.0, and an invention title of "Blood Pressure Monitoring System", the entire content of which is incorporated herein by reference. Technical Field

[0002] The present utility model relates to a blood pressure monitoring system, belonging to the technical field of health monitoring. Background Art

[0003] In order to meet the blood pressure reduction needs of young hypertensive patients, it is required that the product has high precision while being portable. In addition, hypertension requires long-term and high-frequency treatment, which also requires the blood pressure reduction device to have a portable attribute.

[0004] Although existing blood pressure monitoring devices can, to a certain extent, help users monitor blood pressure levels, they have some limitations. For example, these devices usually can only monitor blood pressure data at a single position on the human body. This single-data monitoring method may lead to users' misunderstanding of their blood pressure conditions because it cannot comprehensively reflect the fluctuations of blood pressure. In addition, the measurement accuracy of this single-data detection device is often affected by various factors. For example, the user's measurement posture, the wearing position and tightness of the cuff, and the calibration of the device, etc. These factors may all cause measurement errors, thereby affecting the accuracy of blood pressure monitoring.

[0005] In view of this, it is indeed necessary to provide a blood pressure monitoring system to solve the above problems. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a blood pressure monitoring system that can effectively reduce measurement errors.

[0007] To achieve the above purpose, the present utility model provides a blood pressure monitoring system, including:

[0008] A wristband device, including a housing and a first signal acquisition unit and a second signal acquisition unit arranged on the housing, the first signal acquisition unit is connected to the second signal acquisition unit and jointly outputs first blood pressure data;

[0009] A head-mounted device, including a main body part that at least covers the user's eyes and a fixing part that fixes the main body part on the head, a third signal acquisition unit and a fourth signal acquisition unit are arranged on the main body part, the third signal acquisition unit is connected to the fourth signal acquisition unit and jointly outputs second blood pressure data;

[0010] Moreover, the first signal acquisition unit and the third signal acquisition unit are connected to jointly output third blood pressure data; the second signal acquisition unit and the fourth signal acquisition unit are connected to jointly output fourth blood pressure data.

[0011] As a further improvement of the present utility model, the first signal acquisition unit includes a first ECG electrode and a second ECG electrode, and the second signal acquisition unit includes a first PPG sensor; wherein, the first ECG electrode and the first PPG sensor are both disposed on the lower surface of the housing facing the user's skin, and the second ECG electrode is disposed on the side surface of the housing, wherein the side surface is adjacent to the lower surface.

[0012] As a further improvement of the present utility model, the third signal acquisition unit includes a third ECG electrode and a fourth ECG electrode, and the fourth signal acquisition unit is a second PPG sensor. The third ECG electrode and the second PPG sensor are both disposed on the inner side surface of the main body portion facing the user's eyes and are disposed corresponding to the position of the user's forehead; the fourth ECG electrode is disposed on an adjacent surface adjacent to the inner side surface.

[0013] As a further improvement of the present utility model, the first ECG electrode is connected to the third ECG electrode to form a hand-heart-head loop to output the third blood pressure data; the first PPG sensor and the second PPG sensor are signal-connected to jointly output the fourth blood pressure data.

[0014] As a further improvement of the present utility model, an external signal input interface is provided on the head-mounted device, and the first ECG electrode and the third ECG electrode are wired-connected through the external signal input interface and a line.

[0015] As a further improvement of the present utility model, it further includes an electrical stimulation device. The electrical stimulation device is disposed on the lower surface of the wristband device facing the skin, and the first ECG electrode is connected to the electrical stimulation device; and / or the electrical stimulation device is disposed on the head-mounted device, and the third ECG electrode is connected to the electrical stimulation device.

[0016] As a further improvement of the present utility model, at least a part of the head-mounted device covers the user's eyes, and an eyeball pressing structure is provided at a position corresponding to the user's eyes on the head-mounted device. The eyeball pressing structure is configured to reduce the user's blood pressure based on the oculocardiac reflex.

[0017] As a further improvement of the present utility model, the eyeball pressing structure includes a driving structure, a pressing structure and an airbag structure. The driving structure is in transmission connection with the pressing structure to drive the pressing structure to reciprocate. At least part of the airbag structure is located on the movement path of the pressing structure and is pressed by the pressing structure to bulge towards the user's eyes so as to contact the user's eyes.

[0018] As a further improvement of the present utility model, the airbag structure includes a first airbag and a second airbag. The first airbag and the second airbag are connected by a rigid catheter. The first airbag is arranged close to the pressing structure and is provided with a first flexible film on the side facing the pressing structure. The second airbag is arranged close to the eyes and is provided with a second flexible film on the side facing the eyes. When the pressing structure reciprocates, the first flexible film is pressed, and the second flexible film bulges towards the eyes so as to contact the eyes.

[0019] As a further improvement of the present utility model, the internal space of the first airbag is larger than the internal space of the second airbag.

[0020] The beneficial effects of the present utility model are as follows: Compared with the prior art, the blood pressure monitoring system of the present utility model can collect four kinds of blood pressure data simultaneously by integrating a wristband device and a head-mounted device, including the first blood pressure data collected from the wrist by two signal acquisition units in the wristband device, the second blood pressure data collected from the head by two signal acquisition units in the head-mounted device, and the interaction between the wristband device and the head-mounted device. Thus, the third blood pressure data and the fourth blood pressure data can be output, so that the instability and error of single-device and single-position measurement can be reduced, the change of blood pressure can be monitored in real time in a complex environment, accurate blood pressure data can be output, and the monitoring reliability and accuracy of the blood pressure monitoring system can be improved. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the blood pressure monitoring system according to a preferred embodiment of the present utility model.

[0022] Figure 2 is a logic block diagram of the blood pressure monitoring system according to a preferred embodiment of the present utility model.

[0023] Figure 3 is a schematic diagram of the eyeball pressing structure according to a preferred embodiment of the present utility model.

[0024] Figure 4 is Figure 3 a schematic diagram of another state of the eyeball pressing structure in Detailed Description of the Invention

[0025] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Here, it should be noted that in order to avoid obscuring the present utility model with unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the drawings, while other details less relevant to the present utility model are omitted.

[0027] In addition, it should also be noted that the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article, or device.

[0028] Please refer to Figures 1 to 4 As shown, the present utility model provides a blood pressure monitoring system 100, which can monitor the change of blood pressure in real time in a complex environment, output accurate blood pressure data, reduce the error and tolerance of single-device measurement, and improve the reliability and accuracy of blood pressure monitoring.

[0029] The blood pressure monitoring system 100 includes a wristband device 1, a head-mounted device 2, and a control device (not shown).

[0030] The wristband device 1 can be a device such as a smart watch or a smart bracelet that can be worn on the wrist. The head-mounted device can be a device such as an eye mask or glasses that can surround the head and at least cover the eyes. For the sake of clear illustration, in the following embodiments, the wristband device 1 is a smart watch and the head-mounted device is an eye mask as an example, but it should not be limited thereto.

[0031] The wristband device 1 includes a housing 11 and a first signal acquisition unit 12 and a second signal acquisition unit provided on the housing 11. The housing 11 includes a lower surface 111 facing the user's skin, an upper surface 112 facing away from the user's skin, and a side surface 113 surrounding between the lower surface 111 and the upper surface 112.

[0032] The first signal acquisition unit 12 includes a first ECG electrode 121 and a second ECG electrode 122. Among them, the first ECG electrode 121 is provided on the lower surface 111 facing the user's skin, and the second ECG electrode 122 is provided on the side surface 113 adjacent to the lower surface 111 and does not directly contact the user's skin. In this embodiment, the second ECG electrode 122 is provided on the crown of the smart watch. The second signal acquisition unit is a first PPG sensor 13, and the first PPG sensor 13 is provided on the lower surface 111 facing the user's skin.

[0033] When the user wears the smart watch, among which, the first ECG electrode 121 is always in contact with the user's skin. When the finger of the user's other hand that is not wearing the smart watch touches the second ECG electrode 122 arranged on the side surface 113, a loop passing through the heart can be formed: the left hand - the heart - the right hand loop. At the same time, the first PPG sensor 13 of the second signal acquisition unit is always in contact with the skin. The first PPG sensor 13 is used to collect the PPG signal at the position where it is located, as the end point of the PTT, for calculating the Pulse Transit Time (PTT). And the electrocardiogram signal (Electrocardio-Gram, ECG) collected by the first signal acquisition unit 12 (the first ECG electrode 121 and the second ECG electrode 122) is used as the starting point of the PTT for subsequent calculation of the pulse wave conduction time. And the pulse wave conduction time is negatively correlated with blood pressure. When the blood pressure is relatively high, the arterial wall becomes tense and the transmission speed of the pulse wave becomes faster. When the blood pressure is relatively low, the arterial wall becomes relaxed and the transmission speed of the pulse wave becomes slower. Therefore, the change relationship between the pulse wave conduction time and blood pressure can be used to monitor the change of blood pressure and the blood pressure value within a certain error range. That is, the first signal acquisition unit 12 and the second signal acquisition unit are signal-connected and cooperate with each other to jointly output the first blood pressure data. By adopting the electrocardiogram & photoplethysmogram (ECG & PPG) combination method, the measurement difficulty is reduced compared with the two-channel PPG combination method, and the requirement for the integrity of the PPG signal is lower compared with the pulse wave characteristic parameter method.

[0034] The head-mounted device 2 includes a main body portion 21 that at least covers the user's eyes and a fixing portion 22 that fixes the main body portion 21 to the head. The main body portion 21 includes an inner side surface 211 facing the user's eyes and an adjacent surface 212 adjacent to the inner side surface 211. A third signal acquisition unit 23 and a fourth signal acquisition unit are provided on the main body portion 21.

[0035] The third signal acquisition unit 23 includes a third ECG electrode 231 and a fourth ECG electrode 232. The third ECG electrode 231 is arranged on the inner side surface 211 of the head-mounted device 2 facing the user's eyes and is arranged corresponding to the position of the user's forehead of the head-mounted device. The fourth ECG electrode 232 is arranged on the adjacent surface 212 adjacent to the inner side surface 211. The fourth signal acquisition unit is the second PPG sensor 24, and the second PPG sensor 24 is arranged on the inner side surface 211 of the head-mounted device 2 facing the user's eyes. By arranging the third ECG electrode 231 at the forehead position, the problem that the traditional ECG electrode is placed on the ear and the real-time data cannot be completely collected due to factors such as skin hair and small contact area of the ear during monitoring is solved.

[0036] When the user wears the eye mask, since the third ECG electrode 231 is provided on the inner side surface 211, it always contacts the user's forehead. When the user's finger touches the fourth ECG electrode 232 provided on the adjacent surface 212, a loop passing through the heart can be formed: a closed-loop circuit of head-heart-hand. At the same time, the fourth signal acquisition unit, that is, the second PPG sensor 24, always contacts the skin. The second PPG sensor 24 is used to acquire the PPG signal at the position where it is located, as the end point of PTT, for calculating the Pulse Transit Time (PTT), while the electrocardiogram (ECG) signal acquired by the third signal acquisition unit 23 (the third ECG electrode 231 and the fourth ECG electrode 232) is used as the starting point of PTT for subsequent calculation of the pulse wave conduction time. That is, the third signal acquisition unit 23 and the fourth signal acquisition unit are signal-connected and cooperate to jointly output the second blood pressure data.

[0037] Furthermore, the first signal acquisition unit 12 provided on the wristband device 1 can be signal-connected to the third signal acquisition unit 23 provided on the head-mounted device strap to jointly output the third blood pressure data.

[0038] The first ECG electrode 121 provided on the lower surface 111 facing the user's skin in the first signal acquisition unit 12 is connected to the third ECG electrode 231 provided at the position corresponding to the user's forehead in the third signal acquisition unit 23, which can form a closed loop of hand-heart-head to output the third blood pressure data. By providing the first ECG electrode 121 on the wristband device 1 and creatively integrating the third ECG electrode 231 on the head-mounted device, a new loop is constructed, enabling the user to collect ECG signals by wearing the head-mounted device and the wristband device, freeing the hands, which is very convenient.

[0039] Furthermore, the first ECG electrode 121 of the wristband device 1 is connected to the third ECG electrode 231 of the head-mounted device 2 by wired connection methods such as magnetic attraction and metal contacts, and can also be connected to the third ECG electrode 231 of the head-mounted device 2 by wireless means such as Bluetooth. In this way, it is convenient to replace the electrode, solving the problem of parameter acquisition deviation caused by oxidation of conventional electrodes after long-term use.

[0040] In this embodiment, an external signal input interface is provided on the head-mounted device 2. The external signal input interface is provided on the adjacent surface 212. The first ECG electrode 121 is connected to the external signal input interface through a wired line 3, and is connected to the third ECG electrode 231 through the external signal input interface and the line. Through wired connection, the defect that the dual PPG photoelectric acquisition method has too high requirements for the time synchronization of sensors is made up for.

[0041] Further, the second signal acquisition unit (the first PPG sensor 13) and the fourth signal acquisition unit (the second PPG sensor 24) are signal-connected and jointly output fourth blood pressure data. Since the first PPG sensor 13 and the second PPG sensor 24 are respectively arranged on the skin-facing surfaces of the wristband device 1 and the head-mounted device 2, the first PPG sensor 13 and the second PPG sensor 24 are always in contact with the skin, so the blood pressure of the user can be continuously monitored and the fourth blood pressure data can be continuously output.

[0042] The control device obtains and analyzes at least two of the first blood pressure data, the second blood pressure data, the third blood pressure data, and the fourth blood pressure data, and combines the user health parameters to establish a blood pressure analysis and calculation model, and outputs fifth blood pressure data according to the blood pressure analysis and calculation model. Among them, the user health parameters refer to user personal information parameters such as the user's height, weight, and age. By adding user health parameters to the blood pressure calculation model, the inaccuracy of blood pressure analysis and calculation caused by changes in the user's own physical conditions and differences in activity states can be reduced.

[0043] Further, since the first PPG sensor 13 is arranged in the wristband device 1, the second PPG sensor 24 is arranged in the head-mounted device 2, and the first PPG sensor 13 and the second PPG sensor 24 are always in contact with the skin, the blood pressure of the user can be continuously monitored, and the hands can be liberated, and the fourth blood pressure data can be continuously output. Therefore, the blood pressure data in the blood pressure analysis and calculation model must include the fourth blood pressure data. At this time, the control device further obtains at least one of the first blood pressure data, the second blood pressure data, and the third blood pressure data, combines the user health parameters, establishes a blood pressure analysis and calculation model through AI and neural network algorithms, and outputs fifth blood pressure data through the blood pressure analysis and calculation model. By such a setting, the wristband device 1 and the head-mounted device 2 can be integrated into a blood pressure monitoring system 100. By simultaneously collecting at least two types of blood pressure data, combining the user health parameters, and calculating and outputting the fifth blood pressure data based on the blood pressure analysis and calculation model, the instability and error of single-device measurement can be reduced, the reliability and accuracy of blood pressure data can be improved, the operation difficulty of the user can be reduced, and the probability of misoperation can be reduced.

[0044] Further, in order to improve the accuracy of the blood pressure output result, the general control device acquires at least three blood pressure data. That is, the blood pressure data in the blood pressure analysis and calculation model includes the third blood pressure data, the fourth blood pressure data, and at least one of the first blood pressure data and the second blood pressure data. As described above, the first PPG sensor 13 and the second PPG sensor 24 are always in contact with the skin and can stably output the fourth blood pressure data. When the wristband device 1 and the head-mounted device 2 are connected by a wired line 3, the first ECG electrode 121 and the third ECG electrode 231 are also always in contact with the user's skin, and can always form a head-heart-hand circuit. That is, the third blood pressure data is also stably output all the time. At this time, only need to acquire at least one of the first blood pressure data and the second blood pressure data, then a blood pressure analysis and calculation model with higher accuracy can be established, and a fifth blood pressure data with higher accuracy can be output based on the blood pressure analysis and calculation model.

[0045] It should be noted that, in this embodiment, the control device is arranged in the head-mounted device 2. In other embodiments, the control device can also be arranged on the wristband device 1, or the control device can be an independent control device independent of the wristband device 1 and the head-mounted device 2. The present utility model does not limit this.

[0046] Further improvement, the blood pressure analysis and calculation model is

[0047]

[0048] where K is a parameter matrix, represented by K1~K m denotes, m represents the number of blood pressure data acquired by the blood pressure monitoring system 100. When the blood pressure monitoring system 100 acquires 2 blood pressure data, m = 2. When the blood pressure monitoring system 100 acquires 3 blood pressure data, m = 3, and so on. The K parameter matrix remains unchanged within a period of time, and the initial value is obtained from the population data model. After wearing later, combined with the historical blood pressure information and standard blood pressure information of the wristband device 1 and the head-mounted device 2, iterative optimization is performed in combination with the neural network algorithm.

[0049] S is the blood pressure parameter matrix, S 1A ~S MA denotes systolic blood pressure, S 1B ~S MB denotes diastolic blood pressure.

[0050] B is the output fifth blood pressure data.

[0051] X is the blood pressure influence parameter (height, weight, age...) obtained according to the user's health parameters. X A denotes the influence parameter on systolic blood pressure, X B denotes the influence parameter on diastolic blood pressure.

[0052] Systolic blood pressure A (or diastolic blood pressure X B ) is calculated as follows:

[0053]

[0054] Among them, A is the personal health data entered by the user, T is the coefficient matrix of health data, and X is the blood pressure influencing parameter. The initial value of the T health data coefficient matrix is obtained from the population data model and is updated later through wireless and wired communications. When the user modifies the personal health data, the system will recalculate the corresponding blood pressure influencing parameter.

[0055] Furthermore, the head-mounted device 2 at least partially covers the user's eyes, and the head-mounted device 2 is provided with an eyeball pressure structure 25 at the position corresponding to the user's eyes, and the eyeball pressure structure 25 is configured to reduce the user's blood pressure based on the eye-heart reflex. The wristband device 1 is provided with an electrical stimulation device 14, and the electrical stimulation device 14 is configured to apply electrical stimulation to the user's limbs to reduce the user's blood pressure. When the fifth blood pressure data is not within the preset safety range, the control device controls the eyeball pressure structure 25 and / or the electrical stimulation device 14 to work. In this way, two blood pressure reduction treatment schemes are integrated into a system, and the difficulty of patient operation is reduced and the probability of misoperation is reduced through unified control and scheduling of the processor. In addition, the eyeball pressure structure 25 based on the eye-heart reflex and the electrical stimulation treatment are alternately operated in three working states, which reduces the tolerance of the body caused by long-term treatment of a single method, and further improves the blood pressure treatment effect.

[0056] See also Figure 3 and Figure 4 As shown, in this embodiment, the eyeball pressurizing structure 25 includes a driving structure 251, a squeezing structure 252 and an airbag structure 253. The driving structure 251 is in transmission connection with the squeezing structure 252, driving the squeezing structure 252 to reciprocate, and the airbag structure 253 is at least partially located on the movement path of the squeezing structure 252, and is squeezed by the squeezing structure 252 to bulge toward the user's eyes, so as to contact the user's eyes, and reduce the user's blood pressure based on the eye-heart reflex, thereby achieving the effect of lowering blood pressure.

[0057] Furthermore, the driving structure 251 is a driving motor, and the extrusion structure 252 is drop-shaped, including a head and a tail. The tail of the extrusion structure 252 is fixedly connected to the motor shaft of the driving motor, and performs reciprocating arc motion with the motor shaft as the rotation center. During the reciprocating motion of the pressurizing structure, its head contacts the airbag structure 253 to squeeze the airbag.

[0058] The airbag structure 253 includes a first airbag 2531 and a second airbag 2532, and the first airbag 2531 and the second airbag 2532 are connected by a rigid conduit 2533. Wherein, the inside of the first airbag 2531, the second airbag 2532 and the conduit can be air, or fluid substances such as sand and water, and the present utility model does not limit this.

[0059] The first airbag 2531 is disposed close to the extrusion structure 252, and a first flexible film 2534 is provided on the side facing the extrusion structure 252. The second airbag 2532 is disposed close to the eye, and a second flexible film 2535 is provided on the side facing the eye. Since the first airbag 2531 and the second airbag 2532 are communicated, and except for the first flexible film 2534 and the second flexible film 2535 which are made of flexible materials and can deform, other parts are rigid structures that are not easily deformed. Therefore, when the extrusion structure 252 reciprocates, its head presses the first flexible film 2534. Due to the stability of air pressure, the second flexible film 2535 bulges toward the eye direction to contact the eyeball, thereby pressing the eyeball to produce an oculocardiac reflex and reduce blood pressure. Of course, this kind of stimulation is very gentle and can also play a role in massaging the eyeball. That is, while reducing blood pressure, it can massage the eyes.

[0060] Further, the internal space of the first airbag 2531 is larger than that of the second airbag 2532. Such a setting is such that the first flexible film 2534 on the first airbag 2531 only needs to undergo a small deformation to cause a large deformation of the second flexible film 2535 on the second airbag 2532.

[0061] Further, the blood pressure monitoring system 100 continuously monitors the blood pressure and heart rate of the user to timely master the user's state and adjust the working state of the eyeball pressing structure at any time.

[0062] When the eyeball pressing structure 25 works, the force and frequency applied to the eyeball are adjustable, and it has multiple gears. The gears are provided with multiple levels according to the abnormal degree of blood pressure data. The pressing intensities of the multiple levels, and / or, the pressing frequencies, and / or, the pressing times, and / or, the number of pressing times are different.

[0063] Further, the head-mounted device 2 can also apply electrical stimulation to the forehead to reduce the user's blood pressure through electrical stimulation.

[0064] While outputting the electrocardiogram signal, the third ECG electrode 231 can output electrical stimulation to perform electrical stimulation treatment on the user. By having the electrical stimulation output function at the third ECG electrode 231 inside the head-mounted device 2, it saves the space of one electrode for the head-mounted device. In addition, the head-mounted device can reduce blood pressure through electrical stimulation, can also reduce blood pressure through the eyeball pressing structure 25, or can use both in combination to achieve the purpose of quickly reducing blood pressure.

[0065] An electrical stimulation device 14 is provided on the lower surface 111 of the wristband device 1 facing the skin. The electrical stimulation device 14 is configured to apply electrical stimulation to the user's limb to reduce the user's blood pressure, thereby intervening in abnormal blood pressure conditions in a timely manner. By performing median nerve electrical stimulation on the user through the electrical stimulation device 14, it can be simply understood as applying stimulation to a "point" in terms of current, voltage, frequency.

[0066] Furthermore, while outputting the electrocardiogram signal, the first ECG electrode 121 can output electrical stimulation to perform electrical stimulation treatment on the user. With this setting, it saves the space of one electrode for the wristband device 1.

[0067] Furthermore, the gears of the electrical stimulation treatment are provided with multiple levels according to the abnormal degree of the blood pressure data, and the electrical stimulation intensities and / or electrical stimulation frequencies and / or electrical stimulation times and / or the number of times of repeated electrical stimulation of the multiple levels are different.

[0068] Furthermore, the user's hypertension medical history can also be input in the user's health parameters. When the user is determined to have hypertension, the control device determines the appropriate electrical stimulation treatment and / or eye pressure treatment that should be given to the user according to the blood pressure range exceeding the normal range, the severity of hypertension, the duration of having hypertension, taking medications, etc.

[0069] By applying the blood pressure monitoring system 100 of the present utility model, real-time monitoring and accurate monitoring of blood pressure can be achieved. For example, the following blood pressure monitoring method can be adopted:

[0070] S1: Continuously collect at least two of the first blood pressure data, the second blood pressure data, the third blood pressure data, and the fourth blood pressure data;

[0071] S2: Obtain the user's health parameters;

[0072] S3: Based on the at least two blood pressure data and the user's health parameters, establish a blood pressure analysis calculation model;

[0073] S4: Based on the blood pressure analysis calculation model, output the fifth blood pressure data.

[0074] By detecting at least two kinds of blood pressure data generated by the wristband device 1 and the head-mounted device 2 in the blood pressure monitoring method, combining with the user's health parameters, and calculating and outputting the fifth blood pressure data based on the blood pressure analysis calculation model, it is possible to reduce the instability and error of single-device measurement, improve the reliability and accuracy of blood pressure data, reduce the operation difficulty of users, and reduce the probability of misoperation.

[0075] Further, the blood pressure analysis calculation model is

[0076]

[0077] where K is a parameter matrix, represented by K1 to K m denotes, m represents the number of blood pressure data obtained by the blood pressure monitoring system 100. When the blood pressure monitoring system 100 obtains 2 blood pressure data, m = 2; when the blood pressure monitoring system 100 obtains 3 blood pressure data, m = 3, and so on. The K parameter matrix remains unchanged within a period of time, and the initial value is obtained from the population data model. After wearing, it is iteratively optimized by combining the historical blood pressure information and the standard blood pressure information of the wristband device 1 and the head-mounted device 2, and combining the neural network algorithm. The comparison table of the parameter matrix K is shown in the following table.

[0078]

[0079]

[0080] Note: √ indicates that the corresponding data is collected.

[0081] S is the blood pressure parameter matrix, S 1A ~S MA represents systolic blood pressure, S 1B ~S MB represents diastolic blood pressure.

[0082] B is the output fifth blood pressure data.

[0083] X is the blood pressure influence parameter (height, weight, age...) obtained based on the user's health parameters. X A represents the influence parameter on systolic blood pressure, X B represents the influence parameter on diastolic blood pressure.

[0084] The calculation formula for the influence parameter of systolic blood pressure X A (or diastolic blood pressure X B ) is as follows:

[0085]

[0086] Among them, A is the personal health data input by the user, T is the coefficient matrix of health data, and X is the blood pressure influencing parameter. The initial value of the T health data coefficient matrix is obtained from the population data model and is updated later through wireless and wired communications. After the user modifies the personal health data, the system will recalculate the corresponding blood pressure influencing parameter.

[0087] Furthermore, at least part of the head-mounted device 2 covers the user's eyes, and an eyeball pressurizing structure 25 is provided at the position of the head-mounted device 2 corresponding to the user's eyes. The eyeball pressurizing structure 25 is configured to reduce the user's blood pressure based on the oculocardiac reflex; an electrical stimulation device 14 is provided on the wristband device 1, and the electrical stimulation device 14 is configured to apply electrical stimulation to the user's limb to reduce the user's blood pressure. The blood pressure monitoring method further includes:

[0088] S5: Analyze and determine whether the fifth blood pressure data is within a preset safe range;

[0089] S6: When the fifth blood pressure data is not within the preset safe range, the control device controls the eyeball pressurizing structure 25 and / or the electrical stimulation device 14 to work.

[0090] By alternately working with two treatment means and three working states, the tolerance generated by the body during long-term treatment with a single means can be reduced, and the treatment effect can be further improved. In order to achieve more scientific and convenient treatment, two blood pressure reduction treatment schemes are integrated into a set of systems. Through the unified control and scheduling of the processor, the operation difficulty of patients is reduced, and the probability of misoperation is reduced.

[0091] Furthermore, when the systolic blood pressure in the fifth blood pressure data is less than 139 mmHg and, at the same time, the diastolic blood pressure is less than 89 mmHg, the control device determines that the fifth blood pressure data is within the preset safe range, that is, normal blood pressure. At this time, neither the eyeball pressurizing structure nor the wrist electrical stimulation device 14 works.

[0092] When the systolic blood pressure in the fifth blood pressure data is between 140 mmHg and 159 mmHg and, at the same time, the diastolic blood pressure is between 90 mmHg and 99 mmHg, the control device determines that the fifth blood pressure data is not within the preset safe range and considers it to be grade 1 hypertension. At this time, the eyeball pressurizing structure and the wrist electrical stimulation device 14 are controlled by the control device to work randomly and independently.

[0093] When the systolic blood pressure in the fifth blood pressure data is greater than 160 mmHg and, at the same time, the diastolic blood pressure is greater than 100 mmHg, the control device determines that the fifth blood pressure data is not within the preset safe range and considers it to be grade 2 hypertension. At this time, the eyeball pressurizing structure and the wrist electrical stimulation work simultaneously.

[0094] When the systolic blood pressure and diastolic blood pressure in the fifth blood pressure data are not both within a blood pressure judgment interval, the judgment is made according to the interval where the systolic blood pressure is located.

[0095] Further, after the control device controls the eyeball pressurizing structure 25 and / or the electrical stimulation device 14 to work for one cycle, a treatment plan different from the previous cycle is randomly selected for the next cycle of treatment. For example, if the eyeball pressurizing structure 25 was used in the previous cycle, then electrical stimulation treatment will be adopted in the next cycle, or both the eyeball pressurizing structure 25 and electrical stimulation will be used simultaneously. Such a setting is to avoid the problem of tolerance caused by a single treatment method.

[0096] Further, the wrist electrical stimulation device 14 and the eyeball pressurizing structure 25 can operate automatically according to the user's wearing situation and the detected abnormal blood pressure condition of the patient (or the patient can also choose by himself), and can work independently or simultaneously.

[0097] Further, the gears of the electrical stimulation device 14 and the eyeball pressurizing structure 25 are provided with multiple levels according to the degree of abnormality of the blood pressure data, and the electrical stimulation / pressurization intensities of the multiple levels, and / or, the electrical stimulation / pressurization frequencies, and / or, the electrical stimulation / pressurization times, and / or, the number of times of repeated electrical stimulation / pressurization are different.

[0098] Further, when a preset stop condition is reached, the control device controls the eyeball pressurizing structure 25 and / or the electrical stimulation device 14 to stop working, and the preset stop condition includes:

[0099] Define the fifth blood pressure data that controls the eyeball pressurizing structure 25 and / or the electrical stimulation device 14 to start working as the initial blood pressure data. When the fifth blood pressure data output by the control device shows a decrease of more than 20% compared with the initial blood pressure data; or, when the blood pressure monitoring system 100 continuously works for more than 2 hours; or, manually press the shutdown button.

[0100] In order to more clearly illustrate the specific usage methods of the blood pressure monitoring system 100 and the monitoring method of the present invention, the following will be described in detail with two specific embodiments, but it should not be limited thereto.

[0101] Embodiment 1

[0102] User 1 wears the head-mounted device 2 and the wristband device 1. At the same time, the third ECG electrode 231 of the head-mounted device 2 and the first ECG electrode 121 of the wristband device 1 are connected through an external signal input interface and a wired line 3. After the connection, the control device in the head-mounted device 2 is responsible for collecting, processing data and controlling the components to work.

[0103] User 1 first enters personal information into the wrist - type device 1 or the head - mounted device 2, and the control device calculates the influence parameter X of systolic blood pressure using the built - in blood - pressure influence parameter calculation model. A and the influence parameter X of diastolic blood pressure B .

[0104] After pressing the start button, the blood - pressure monitoring system 100 starts to collect the blood - pressure data of User 1. The control device collects the PPG signals in the head - mounted device 2 and the wrist - type device 1 and outputs the fourth blood - pressure data. At the same time, the first ECG electrode 121 and the third ECG electrode 231 form a head - heart - hand loop and output the third blood - pressure data.

[0105] The control device obtains and analyzes the third blood - pressure data and the fourth blood - pressure data to match the blood - pressure analysis calculation model B = K b ×S, and at the same time combines the influence parameter X of systolic blood pressure obtained from the user's health parameters A and the influence parameter X of diastolic blood pressure B , and outputs the fifth blood - pressure data, that is, the final systolic blood pressure and diastolic blood pressure are 165 mmHg and 100 mmHg respectively.

[0106] The control device determines that User 1 has stage 2 hypertension based on the fifth blood - pressure data, and controls the wrist - type device 1 to output an electric stimulation of the default intensity through the electric - stimulation electrode on the lower surface 111, and controls the eyeball - pressing structure installed on the head - mounted device 2 to press the eyeballs with the default intensity (both default to work in gear 1).

[0107] User 1 thinks that the feeling of the default gear 1 is too weak, and he adjusts the button / knob to increase the intensity level.

[0108] During this period, the blood - pressure monitoring system 100 continuously collects and analyzes the blood - pressure data of User 1, and through calculation, obtains the final fifth blood - pressure data of User 1, and judges whether the interval corresponding to the fifth blood - pressure data is within the preset normal range, or belongs to stage 1 hypertension or stage 2 hypertension.

[0109] After User 1 has worn it for 10 minutes, the blood - pressure monitoring system 100 monitors that the systolic blood pressure or diastolic blood pressure in the output fifth blood - pressure data has dropped to 115 mmHg or 70 mmHg. At this time, the blood - pressure monitoring system 100 automatically stops the operation of the eyeball - pressing structure 25 and the wrist - electric - stimulation device 14.

[0110] Embodiment 2

[0111] User 2 wears the head-mounted device 2 and the wristband device 1. At the same time, the third ECG electrode 231 of the head-mounted device 2 and the first ECG electrode 121 of the wristband device 1 are connected through an external signal input interface and a wired line 3. After the connection, the control device in the head-mounted device 2 is responsible for collecting, processing data, and controlling the operation of components.

[0112] User 2 first enters personal information into the wristband device 1 or the head-mounted device 2. The control device uses the built-in blood pressure influence parameter calculation model to calculate the influence parameter X of systolic blood pressure A and the influence parameter X of diastolic blood pressure B .

[0113] After pressing the start button, the blood pressure monitoring system 100 starts to collect the blood pressure data of User 1. The control device collects the PPG signals in the head-mounted device 2 and the wristband device 1 and outputs the fourth blood pressure data. At the same time, the first ECG electrode 121 and the third ECG electrode 231 form a head-heart-hand loop and output the third blood pressure data. In addition, User 2 touches the fourth ECG electrode 232 on the adjacent surface 212 of the head-mounted device 2 with the right hand. At this time, the third ECG electrode 231 and the fourth ECG electrode 232 in the head-mounted device 2 and the second PPG sensor 24 work together to output the second blood pressure data.

[0114] The control device obtains and analyzes the second blood pressure data, the third blood pressure data, and the fourth blood pressure data, and matches the blood pressure analysis calculation model = K f ×S. At the same time, combining the influence parameter X of systolic blood pressure obtained from the user health parameters input by User 2 A and the influence parameter X of diastolic blood pressure B , it outputs the fifth blood pressure data, that is, the final systolic blood pressure and diastolic blood pressure are 155 mmHg and 95 mmHg respectively.

[0115] The control device determines that User 2 has grade 1 hypertension based on the fifth blood pressure data and controls the wristband device 1 to output an electric stimulation of the default intensity through the electric stimulation device 14 on the lower surface 111. After 10 minutes, the control device controls the eyeball pressurization structure to work. After another 10 minutes, the control device selects the stimulation device to output an electric stimulation of the second intensity and works for another 10 minutes.

[0116] Due to other interferences, 30 minutes later, the systolic blood pressure and diastolic blood pressure in the fifth blood pressure data measured by User 2 rise to 165 mmHg and 100 mmHg. The control device re-determines that User 2 has grade 2 hypertension. At this time, the control device simultaneously activates the eyeball pressurization structure and the wrist electric stimulation device 14 to work. After 10 minutes, after User 2 feels more comfortable, for other reasons, the blood pressure monitoring system 100 is turned off through the shutdown button.

[0117] In summary, the blood pressure monitoring system 100 of the present utility model integrates a wristband device 1 and a head-mounted device 2, can collect at least two kinds of blood pressure data simultaneously, and based on the user's health parameters, analyzes and calculates based on a blood pressure analysis calculation model to output the fifth blood pressure data, thereby being able to reduce the errors and tolerances of single-device measurements, effectively reduce the instability and errors of blood pressure monitoring data, and improve the reliability and accuracy of blood pressure data. According to the current blood pressure value, a variety of random blood pressure intervention measures are taken, which can reduce the tolerance of the body to a single blood pressure intervention measure over a long time and improve the treatment effect. By alternately working in three working states of two treatment means, namely the eyeball pressure structure 25 and the wrist electrical stimulation device 14, the tolerance generated by the body due to long-term treatment with a single means can be reduced, and the treatment effect can be further improved. In order to achieve more scientific and convenient treatment, two blood pressure lowering treatment schemes are integrated into a set of systems, and through the unified control and scheduling of the control device, the operation difficulty of the patient is reduced, and the probability of misoperation is reduced.

[0118] The above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A blood pressure monitoring system, characterized in that, Comprising: A wristband device, including a housing and a first signal acquisition unit and a second signal acquisition unit disposed on the housing, the first signal acquisition unit being connected to the second signal acquisition unit and jointly outputting first blood pressure data; A head-mounted device, including a main body portion that at least covers the user's eyes and a fixing portion that fixes the main body portion to the head, a third signal acquisition unit and a fourth signal acquisition unit being disposed on the main body portion, the third signal acquisition unit being connected to the fourth signal acquisition unit and jointly outputting second blood pressure data; And, the first signal acquisition unit and the third signal acquisition unit are connected and jointly output third blood pressure data; the second signal acquisition unit and the fourth signal acquisition unit are connected and jointly output fourth blood pressure data.

2. The blood pressure monitoring system according to claim 1, wherein The first signal acquisition unit includes a first ECG electrode and a second ECG electrode, and the second signal acquisition unit includes a first PPG sensor; wherein, both the first ECG electrode and the first PPG sensor are disposed on the lower surface of the housing facing the user's skin, and the second ECG electrode is disposed on the side surface of the housing, wherein the side surface is adjacent to the lower surface.

3. The blood pressure monitoring system according to claim 2, wherein, The third signal acquisition unit includes a third ECG electrode and a fourth ECG electrode, the fourth signal acquisition unit is a second PPG sensor, both the third ECG electrode and the second PPG sensor are disposed on the inner side surface of the main body portion facing the user's eyes and are disposed corresponding to the position of the user's forehead; the fourth ECG electrode is disposed on an adjacent surface adjacent to the inner side surface.

4. The blood pressure monitoring system according to claim 3, characterized in that The first ECG electrode is connected to the third ECG electrode to form a hand-heart-head loop to output the third blood pressure data; the first PPG sensor and the second PPG sensor are signal-connected to jointly output fourth blood pressure data.

5. The blood pressure monitoring system according to claim 3, wherein An external signal input interface is provided on the head-mounted device, and the first ECG electrode and the third ECG electrode are wired-connected through the external signal input interface and a circuit.

6. The blood pressure monitoring system according to claim 3, characterized in that, It further includes an electrical stimulation device, the electrical stimulation device is disposed on the lower surface of the wristband device facing the skin, and the first ECG electrode is connected to the electrical stimulation device; and / or, the electrical stimulation device is disposed on the head-mounted device, and the third ECG electrode is connected to the electrical stimulation device.

7. The blood pressure monitoring system according to any one of claims 1 to 6, characterized in that An eyeball pressing structure is provided at a position corresponding to the user's eyes on the head-mounted device, and the eyeball pressing structure is configured to reduce the user's blood pressure based on the oculocardiac reflex.

8. The blood pressure monitoring system according to claim 7, wherein, The eyeball pressing structure includes a driving structure, a pressing structure and an airbag structure, the driving structure is in transmission connection with the pressing structure to drive the pressing structure to reciprocate, and at least part of the airbag structure is located on the movement path of the pressing structure and is pressed by the pressing structure to bulge towards the direction of the user's eyes to contact the user's eyes.

9. The blood pressure monitoring system according to claim 8, characterized in that, The airbag structure includes a first airbag and a second airbag. The first airbag and the second airbag are connected by a rigid catheter. The first airbag is disposed near the extrusion structure, and a first flexible film is provided on the side facing the extrusion structure. The second airbag is disposed near the eye, and a second flexible film is provided on the side facing the eye. When the extrusion structure reciprocates, the first flexible film is extruded, and the second flexible film bulges toward the eye to contact the eye.

10. The blood pressure monitoring system according to claim 9, wherein, The internal space of the first airbag is larger than the internal space of the second airbag.

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