WO2015143725A1

WO2015143725A1 - Blood pressure detection device and related measuring method, device and communication system

Info

Publication number: WO2015143725A1
Application number: PCT/CN2014/074322
Authority: WO
Inventors: 孙尙传; 李西峙
Original assignee: 深圳市大富网络技术有限公司
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2015-10-01
Also published as: CN105377125A; CN105377125B

Abstract

A blood pressure detection device (100) and related measuring method, device and communication system, the blood pressure detection device (100) comprising upper and lower pressure sensors (110, 120) oppositely disposed, a lower enclosed resilient air bag (121) being sleeved on the periphery of the lower pressure sensor (120), the lower pressure sensor (120) pressing the arterial location of a human limb via the lower resilient air bag (121); a processor (130) is electrically connected to the upper and lower pressure sensors (110, 120); the processor (130) acquires upper and lower pressure values, and calculates human blood pressure according to the difference or ratio between the lower and upper pressure values. The method can obtain a pressure signal of the detected part easily and directly, further obtaining the blood pressure of the human body.

Description

Blood pressure detecting device and related measuring method, device and communication system

[Technical Field]

The present invention relates to the field of blood pressure detecting technology, and in particular to a blood pressure detecting device, a measuring method thereof, a related device, and a communication system.

【Background technique】

One of the most popular blood pressure measuring devices currently used is the traditional oscillometric method, which has been used for more than 100 years. It uses an inflatable cuff or wristband to block arterial blood flow during slow deflation. The vibration wave of the blood vessel wall is detected, and the relationship between the envelope of the vibration wave and the vibration wave is found to estimate the blood pressure. The main disadvantages are: volume, weight, and power consumption are large, and the measurement takes time, which takes hundreds of seconds.

There are also pressure sensors used to detect pulse wave vibrations. However, current pressure sensors used in pulse and blood pressure measuring instruments usually only detect the total pressure including the pressing force and the pulse pressure at the pulse position, and then perform complex algorithms such as oscillometric filtering on the total pressure waveform. The pressure waveform of the pulse itself, in turn, the blood pressure, the operation is complicated.

[Summary of the Invention]

The embodiment of the invention provides a detecting device, a measuring method thereof, a related device and a communication system, which can directly obtain the pressure signal of the measured part itself, and thereby obtain the blood pressure value of the human body.

In order to solve the above problems, an embodiment of the present invention provides a blood pressure measuring device, including: an upper pressure sensor and a lower pressure sensor disposed back to back, wherein the lower pressure sensor is provided with a closed lower elastic air circumsole, the lower pressure The sensor compresses the position of the artery of the human limb through the outer elastic gas sleeve of the outer circumference; the processor is electrically connected to the upper pressure sensor and the lower pressure sensor; the processor acquires the upper pressure value of the upper pressure sensor and the lower The down pressure value of the pressure sensor calculates the systolic blood pressure and the diastolic blood pressure of the human body according to the difference or ratio between the lower pressure value and the upper pressure value.

The processor includes a pressure acquisition module, a pressure calculation module, and a blood pressure calculation module. The pressure acquisition module is configured to synchronously acquire the upper pressure during the process of receiving the external pressure by the blood pressure detecting device. The upper pressure value detected by the force sensor and the lower pressure value detected by the lower pressure sensor; the pressure calculation module is configured to calculate a difference or ratio between the lower pressure value and the upper pressure value; The blood pressure value of the human body is obtained based on the difference or the ratio.

The blood pressure calculation module is specifically configured to acquire two times corresponding to two times when the difference is closest to 0 or the ratio is closest to 1 during the process of accepting the external pressing force and the external pressing force is increased or decreased. The pressure value, the systolic pressure is obtained from the larger of the two upper pressure values, and the diastolic pressure is obtained from the smaller value. The pressure obtaining module is further configured to: when the blood pressure detecting device does not receive an external pressing force, acquire at least a lower pressure value of the lower pressure sensor in one pulse period, and constitute a pulse pressure change curve. The ratio calculation module is configured to calculate a proportional relationship between a pulse high pressure value and a pulse low pressure value according to the pulse pressure change curve, thereby obtaining a pressure or a diastolic pressure of the human systolic pressure and the diastolic blood pressure, and then according to the human systolic blood pressure and relaxation The proportional relationship of the pressure calculates the corresponding diastolic or systolic pressure.

Wherein, the pressure acquiring module is specifically configured to: when the blood pressure detecting device receives the external pressing force, synchronize the pressure values of the upper pressure sensor and the lower pressure sensor according to the preset period, and obtain the process of receiving the external pressing force The upper and lower pressure values.

The blood pressure detecting device further includes at least one of a display, an operation key, a voice prompt module, a communication module, and an I/O interface, wherein the display is electrically connected to the processor for displaying the blood pressure Detecting information about the device; the operation key is electrically connected to the processor, and is used for inputting a control command; the voice prompting module is electrically connected to the processor, and is used to give an operation process and a test of the blood pressure detecting device a voice prompt of the result; the communication module is electrically connected to the processor, configured to input personal information of the user and send the detection information of the user, to implement a communication connection between the blood pressure detecting device and the external mobile terminal; The /O interface is electrically coupled to the processor for causing the blood pressure detecting device to be wiredly connected to the external mobile terminal or to charge the blood pressure detecting device.

The communication module is a Bluetooth module, a wireless network module or an NFC near field communication module.

To solve the above problem, an embodiment of the present invention provides a pressure sensor assembly, including: The upper pressure sensor and the lower pressure sensor; the lower elastic air pocket is sleeved on the outer circumference of the lower pressure sensor, and the lower pressure sensor is sealed in the lower elastic air chamber.

Wherein, the pressure sensor assembly further comprises an upper elastic gas sleeve, the upper elastic gas sleeve is sleeved on an outer circumference of the upper pressure sensor, and the upper pressure sensor is sealed in the upper elastic air chamber.

Wherein, the elastic coefficient of the upper elastic gas is greater than the elastic coefficient of the lower elastic gas.

Wherein, the outer circumferences of the upper and lower elastic air bubbles are convex hemispherical, and the upper and lower elastic air materials are made of rubber.

Wherein, the upper and lower pressure sensors are silicon piezoresistive sensors or thin film piezoresistive sensors.

In order to solve the above problem, an embodiment of the present invention provides a smart wristband including a pressure sensor assembly and a processor, the pressure sensor assembly including an upper pressure sensor and a lower pressure sensor disposed opposite to each other, and a sleeve a lower elastic gas chamber disposed on an outer circumference of the lower pressure sensor, wherein the lower pressure sensor is sealed in the lower elastic gas chamber to obtain pressure information of the pressure sensor assembly.

In order to solve the above problems, an embodiment of the present invention provides an arterial pulsation detecting device, including a pressure sensor assembly and a processor, the pressure sensor assembly including an upper pressure sensor and a lower pressure sensor disposed back to back, and the lower pressure sensor outer peripheral sleeve Providing a closed lower elastic gas, the lower pressure sensor is pressed by a lower elastic gas sleeve which is sleeved around the outer circumference; the processor is electrically connected to the upper and lower pressure sensors, respectively, for obtaining Pressure information for the pressure sensor assembly.

The processor is specifically configured to acquire a difference or a ratio between pressure values detected by the lower pressure sensor and the upper pressure sensor when the arterial pulse detecting device receives external pressure, as a pulse of the artery position Instantaneous waveform.

In order to solve the above problem, an embodiment of the present invention provides a smart wristband including a pressure sensor assembly and a processor, the pressure sensor assembly including an upper pressure sensor and a lower pressure sensor disposed opposite to each other, and a sleeve a lower elastic gas chamber disposed on an outer circumference of the lower pressure sensor, the lower pressure sensor being sealed in the lower elastic air chamber and disposed at a position of a human artery; the processor and the upper and lower pressure sensors respectively Electrical connection, when the external pressure is received by the arterial pulse detecting device, The pressure information of the pressure sensor assembly is output.

In order to solve the above problems, an embodiment of the present invention provides a blood pressure measuring method, including the following steps: a blood pressure detecting device worn on a limb of a user receives an external pressing force, wherein the blood pressure detecting device is provided with a back-to-back upper pressure sensor And a lower pressure sensor with a lower elastic air squeezing, and the lower pressure sensor compresses the position of the artery of the human limb through the outer elastic air sleeving; the upper pressure sensor and the lower pressure sensor continuously perform pressure detection; The blood pressure detecting device synchronously acquires an upper pressure value detected by the upper pressure sensor and a lower pressure value detected by the lower pressure sensor; the blood pressure detecting device is based on a difference or ratio between the lower pressure value and the upper pressure value Calculate the blood pressure of the human body. The step of determining the blood pressure value of the human body according to the difference or the ratio includes: the blood pressure detecting device acquires the external pressing force, and the difference is closest to 0 when the external pressing force is increased or decreased. Or the two upper pressure values corresponding to the two times when the ratio is closest to 1, the systolic pressure is obtained from the larger of the two upper pressure values, and the diastolic pressure is obtained from the smaller value.

The method further includes: when the blood pressure detecting device does not receive an external pressing force, the processor acquires at least a down pressure value of the lower pressure sensor in one pulse period, and constitutes a pulse pressure change curve; The blood pressure detecting device calculates a proportional relationship between the pulse high pressure value and the pulse low pressure value according to the pulse pressure change curve, thereby obtaining a proportional relationship between the human systolic blood pressure and the diastolic blood pressure; and the difference between the lower pressure value and the upper pressure value Or calculating a blood pressure value of the human body by the ratio: the blood pressure detecting device determines a systolic blood pressure or a diastolic blood pressure of the human body according to the difference value or the ratio; and calculating a corresponding diastolic pressure according to a proportional relationship between the human systolic blood pressure and the diastolic blood pressure Systolic pressure.

The step of synchronously acquiring the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor comprises: the blood pressure detecting device continuously acquiring synchronously or synchronizing the sample according to a preset period The pressure values detected by the pressure sensor and the lower pressure sensor are described, and the upper pressure value and the lower pressure value during the external pressing force are obtained.

Wherein, the sampling period is between 1 and 10 milliseconds, and the pressing time is greater than 4 seconds.

In order to solve the above problems, an embodiment of the present invention provides a smart wristband, including a blood pressure detecting device fixed on a wristband, the blood pressure detecting device comprising: an upper pressure sensor and a lower pressure sensing disposed opposite to each other a lower elastic gas jacket disposed on an outer circumference of the lower pressure sensor; a processor electrically connected to the upper and lower pressure sensors; the processor acquiring the upper and lower pressure sensors The upper pressure value and the lower pressure value of the synchronous feedback are calculated, and the difference or ratio of the lower pressure value and the upper pressure value is calculated, and the blood pressure value of the human body is obtained according to the difference or the ratio.

The wristband is a rubber band loop, a wristband in the form of an elastic fiber tape, a metal bracelet or a leather strap.

The smart wristband further includes a function expanding device, and the function expanding device is fixed on the wristband, and the function expanding device is an hour hand watch dial, a smart watch dial, a wireless MP3, a power source or a small communication device. The fixed function of the function expanding device and the wristband is bundled, snapped or hinged.

In order to solve the above problem, an embodiment of the present invention provides a smart watch, including a dial, a watchband, and a time display device. The time display device is fixed on the dial, and the dial is fixed on the strap. a blood pressure detecting device that is fixed to a watchband of the watch, the blood pressure detecting device comprising: an upper pressure sensor and a lower pressure sensor disposed opposite to each other; a lower elastic air pocket, the lower elastic air pocket being sleeved on the a lower circumference of the lower pressure sensor, wherein the lower pressure sensor compresses the position of the artery of the human limb by the elastic gas sleeve of the outer circumference; the processor is electrically connected to the upper and lower pressure sensors; and the processor acquires the upper, The lower pressure sensor synchronously feedbacks the upper pressure value and the lower pressure value, calculates a difference or a ratio of the lower pressure value and the upper pressure value, and obtains a human body blood pressure value according to the difference or the ratio.

In order to solve the above problem, an embodiment of the present invention provides a communication system, where the communication system includes a blood pressure detecting device and a terminal, and the blood pressure detecting device includes: an upper pressure sensor and a lower pressure sensor disposed opposite to each other; The lower elastic gas is sleeved on the outer circumference of the lower pressure sensor, and the lower pressure sensor presses the elastic gas pocket of the outer circumference to press the artery position of the human limb; the processor, and the upper and lower pressure sensors Electrically connecting; the processor acquires an upper pressure value and a lower pressure value of the synchronous feedback of the upper and lower pressure sensors, and calculates a difference or a ratio of the lower pressure value and the upper pressure value, and according to the difference or ratio Obtaining a blood pressure value of the human body; the blood pressure detecting device further includes a first communication module, the terminal includes a second communication module, and the first and second communication modules are connectable, Communication between the blood pressure detecting device and the terminal is achieved.

Different from the prior art, the present application directly obtains the pressure signal of the measured part itself, such as the pulse pressure generated by the position of the artery itself, by utilizing the property that the elastic gas is insensitive to the position and direction of the force, and the upper and lower pressure sensors are directly obtained. In turn, accurate blood pressure values of the human body are obtained.

[Description of the Drawings]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic structural view of a first embodiment of a blood pressure detecting device of the present application;

Figure 2 is a schematic view showing the waveform of the upper pressure value sensitive to the upper pressure sensor during the pressing of the embodiment shown in Figure 1;

Figure 3 is a schematic view showing the waveform of the lower pressure value sensitive to the lower pressure sensor during the pressing process of the embodiment shown in Figure 1;

Figure 4 is a waveform diagram showing the pulse pressure value during the pressing process of the embodiment shown in Figure 1;

Figure 5 is a schematic structural diagram of a processor in the embodiment shown in Figure 1;

6 is a schematic diagram of a subtraction circuit of the processor in the embodiment shown in FIG. 1;

7 is a schematic structural diagram of a processor in Embodiment 2 of the blood pressure detecting device of the present application;

8 is a schematic structural view of a thin film piezoresistive sensor for a blood pressure detecting device of the present application; FIG. 9 is a schematic structural view of a fourth embodiment of the blood pressure detecting device of the present application;

Figure 10 is a schematic structural view of Embodiment 5 of the blood pressure detecting device of the present application;

Figure 11 is a circuit diagram of a multiplexing circuit of the sensor assembly;

Figure 12 is a flow chart of the first embodiment of the blood pressure measuring method of the present application;

Figure 13 is a schematic view showing the force of the upper and lower pressure sensors when the blood pressure detecting device receives the pressing; Figure 14 is a flow chart of the third embodiment of the blood pressure measuring method of the present application; 15 is a schematic perspective structural view of Embodiment 1 of the smart wristband of the present application;

16 is a schematic perspective structural view of a second embodiment of the smart wristband of the present application;

17 is a schematic structural diagram of Embodiment 1 of a communication system according to the present application;

18 is a schematic structural diagram of Embodiment 2 of a communication system according to the present application;

Figure 19 is a schematic view showing the structure of the first embodiment of the arterial pulsation detecting device of the present application.

【detailed description】

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is specifically noted that the following examples are merely illustrative of the present application, but are not intended to limit the scope of the application. Also, the following embodiments are only a part of the embodiments of the present application, and not all of the embodiments, and all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application. Blood pressure detecting device embodiment 1:

1 is a schematic structural view of a blood pressure detecting device according to a first embodiment of the present invention, and FIG. 2 is a schematic view showing a waveform of an upper pressure value sensitive to an upper pressure sensor during the pressing process of the embodiment shown in FIG. 3 is a waveform diagram of the lower pressure value sensitive to the lower pressure sensor during the pressing process of the embodiment shown in FIG. 1. FIG. 4 is a waveform diagram of the pulse pressure value during the pressing process of the embodiment shown in FIG. 1, FIG. 5 is FIG. A schematic structural diagram of a processor in the illustrated embodiment. The blood pressure detecting device 100 includes an upper pressure sensor 110, a lower pressure sensor 120, a lower elastic gas cylinder 121, and a processor 130.

Specifically, the upper pressure sensor 110 and the lower pressure sensor 120 are disposed opposite to each other to respectively correspond to an upper pressure for pressing from the upper portion and a lower pressure for pressing from the lower portion. As an optimized embodiment, the blood pressure detecting device 100 may further include a fixed circuit board 140. The upper pressure sensor 110 and the lower pressure sensor 120 are mounted back to back on opposite sides of the circuit board 130. The processor 130 is disposed on the circuit board. 140, electrically connected to the upper pressure sensor 110 and the lower pressure sensor 120. Of course, in other embodiments, the upper and lower pressure sensors and the processor are not necessarily limited to being disposed on the circuit board, and the upper and lower pressure sensors may be backed up and connected to the processor by other means, such as directly erecting and fixing the blood pressure. Detection device The housing is connected to the processor fixed to the housing by wires.

The lower circumference of the lower pressure sensor 120 is provided with a closed lower elastic gas cylinder 121. When the elastic gas cylinder 121 is elastically deformed when pressed by the artery position, the gas pressure in the confined space changes, and the lower pressure sensor 120 indirectly measures the pressure of the arterial position by sensing the value of the gas pressure. Preferably, the lower elastic gas cylinder 121 has a convex hemispherical shape so as to be in good contact with the arterial position of the wrist of the human body. Of course, the shape of the lower elastic gas cylinder 121 is not limited thereto, and can function well with the human wrist artery. Good contact can be used. Further, the lower elastic gas 嚢 121 is made of a soft material such as rubber.

In the blood pressure measurement, the lower elastic gas 嚢121 is in contact with the arterial position of the human limb (that is, the soft tissue of the human epidermis at the position of the artery of the human limb, such as the soft tissue of the human epidermis at the position of the wrist of the wrist), when the user presses from the upper portion The upper pressure sensor 110, when the user presses by hand, the upper pressure of the vertical pressing sequentially acts on the arterial position through the lower pressure sensor 120 and the lower elastic gas 嚢121. The upper pressure sensor 110 is sensitive to the upper pressure of the vertical pressing, and the lower pressure sensor 120 is sensitive to the lower pressure transmitted by the lower elastic gas 121 to the arterial position, wherein the lower pressure is specifically the combined force of the upper pressure reaction force and the arterial position pulse pressure. . Since the contact area of the lower elastic diaphragm 121 and the wrist is large, for example, the contact surface s product is a circumferential area of 5 to 10 mm, preferably 8 mm, and the force of the lower pressure sensor 120 is only related to the pressure in the lower elastic air cylinder 121. Regardless of the position of the surface of the lower elastic diaphragm 121, it is not sensitive to the positional accuracy of the measurement pulse, and is not sensitive to small changes in the measurement posture. In other words, in the blood pressure measurement, it is not required that the force must act on the geometric center line of the lower pressure sensor 120, as long as the lower elastic gas 121 outside the lower pressure sensor 120 can contact the artery position, that is, the force is applied. The location and angle are not strictly required. This can reduce the operational requirements of the user while ensuring measurement accuracy.

When the upper pressure sensor 110 is sensitive to the upper pressure, and the lower pressure sensor 120 is sensitive to the lower pressure transmitted by the lower elastic diaphragm 121, the processor 130 synchronously acquires the upper pressure value of the upper pressure sensor 110 and the lower pressure sensor 120. The lowering pressure value is used to calculate the systolic and diastolic blood pressure of the human body based on the difference or ratio between the lower pressure value and the upper pressure value. For example, the user puts the lower elastic diaphragm 121 in the vicinity of the artery position, and during the pressing of the blood pressure detecting device 100, the processor 130 synchronizes the sample multiple times. The pressure sensor 110 detects the upper pressure and the downforce detected by the downforce sensor 120, and all of the upper pressures from the sample form a continuous upper pressure value (as shown in Fig. 2), and all the downforces from the sample are continuously composed. The downforce value (as shown in Figure 3). The processor 130 varies the continuous downforce value from the upforce value to obtain a pulse pressure value at the arterial position during compression (as shown in Figure 4). The user's systolic blood pressure and diastolic blood pressure, or pulse period and other parameters are calculated from the pulse pressure value. It should be noted that, in this embodiment, the pressure value of the digital signal is obtained by the sample, but in other embodiments, the pressure value obtained as the analog signal during the pressing process can be continuously obtained, which is not limited herein.

Specifically, the processor 130 includes a pressure acquisition module 131, a pressure calculation module 132, and a blood pressure calculation module 133 in this embodiment. The pressure obtaining module 131 is configured to synchronously acquire an upper pressure value fed back by the upper pressure sensor 110 and a lower pressure value fed back by the lower pressure sensor 120 during the receiving of the external pressing force by the blood pressure detecting device 100, and the pressure calculating module 132 calculates the lower pressure value and the lower pressure value. The difference or ratio between the upper pressure values, the blood pressure calculation module 133 determines the systolic blood pressure and the diastolic blood pressure of the human body based on the difference or the ratio. For example, the blood pressure calculation module 133 acquires two times (such as tl, t2 in FIG. 4) that accept the external pressing force and the difference in the external pressing force is closest to 0 or the ratio is closest to 1. Two upper pressure values, or two times at which the external pressing force is accepted, and the difference in the external pressing force is closest to 0 or the ratio is closest to 1 (corresponding to t3, t4 in Fig. 4) The two upper pressure values, the systolic pressure is obtained from the larger of the two upper pressure values, and the diastolic pressure is obtained from the smaller value. Specifically, the blood pressure calculation module 133 uses the larger of the two upper pressure values as the systolic pressure at the wrist, and the smaller value as the diastolic pressure at the wrist, and calculates the relationship between the wrist and the blood pressure of the heart. Systolic blood pressure, diastolic blood pressure.

The pressure acquisition module 131 can be implemented by a sample circuit or by a microcomputer MCU executing a computer program, and the pressure calculation module 132 can be implemented by a calculation circuit or a computer program executed by a microcomputer MCU, wherein the calculation is performed. The circuit can be a subtraction circuit (as shown in Figure 6) or a divide circuit.

Preferably, in the embodiment, the upper and lower pressure sensors use a higher sensitivity pressure sensor, such as a silicon piezoresistive pressure sensor, and the silicon piezoresistive pressure sensor includes a silicon bridge and a micro mechanical junction. The specific principles and working processes of the structure, the ADC circuit, the temperature sensing structure and the serial interface are well known to those skilled in the art, and are not described herein again. The sensor is small in size, for example less than 9 x 9mm.

In other embodiments, the upper and lower pressure sensors can respectively use different types of pressure sensors. For example, the lower pressure sensor 120 uses a silicon piezoresistive sensor. Because of its high sensitivity, a lower elastic gas is disposed on the outside. 121, the pressure value is detected by the change of the internal air pressure of the lower elastic gas 嚢121, and the upper pressure sensor 110 can use other types of pressure sensors, such as a column pressure sensor, and the external may not be provided with elastic gas, and Directly sensitive to applied pressure. Which type is used for the upper and lower pressure sensors is not limited here.

The blood pressure detecting device of this embodiment can accurately measure the blood pressure parameter of the human body by utilizing the mutual correction of the upper and lower pressure sensors while utilizing the property that the elastic gas is insensitive to the position and direction of the force. Blood pressure detecting device embodiment 2:

For example, FIG. 7 is a schematic structural diagram of a processor in the second embodiment of the blood pressure detecting device of the present application. The second embodiment is basically the same as the first embodiment, and the difference is that the processor 730 further includes a proportional calculation module 734. The pressure acquisition module 731 is further configured to acquire at least a lower pressure value of the lower pressure sensor and form a pulse pressure change curve in a pulse period when the blood pressure detecting device does not receive the external pressing force, and the proportional calculation module 734 calculates the pulse pressure change curve according to the pulse pressure change curve. The proportional relationship between the pulse high pressure value and the pulse low pressure value, thereby obtaining a proportional relationship between the human systolic blood pressure and the diastolic blood pressure, and the blood pressure calculation module 733 obtains the systolic blood pressure or the diastolic blood pressure of the human body according to the difference or the ratio, and then according to the human body systolic blood pressure and The proportional relationship of diastolic blood pressure is calculated as the corresponding diastolic or systolic pressure.

For example, the lower elastic air pressure of the blood pressure detecting device is in contact with the vicinity of the artery position, and the pressure acquiring module 731 repeatedly presses the downward pressure of the pressure sensor to form a pulse pressure change curve of all the downward pressures of the sample. The ratio calculation module 734 acquires the peak value on the pulse pressure change curve as the pulse high pressure value and the valley value as the pulse low pressure value, and calculates the ratio between the pulse height and the low pressure value as the ratio between the human systolic blood pressure and the diastolic blood pressure. The blood pressure calculation module 733 obtains an external pressing force at the blood pressure detecting device, and the external pressing The two upper pressure values corresponding to the difference between the lower and upper pressure values during the pressure increase or decrease are close to 0 or the ratio is close to 1, and the larger of the two upper pressure values is obtained. The systolic pressure value is obtained according to the proportional relationship between the systolic pressure and the diastolic blood pressure of the human body, or the two values corresponding to the two moments when the difference is close to 0 or the ratio is close to 1 in the process of accepting the external pressing force. The upper pressure value, the diastolic pressure value is obtained from the smaller of the upper pressure values, and the systolic blood pressure value is obtained according to the proportional relationship between the human systolic blood pressure and the diastolic blood pressure. The ratio calculation module 734 can be specifically implemented by a division circuit. Blood pressure detecting device embodiment three:

Referring to Fig. 8, Fig. 8 is a schematic view showing the structure of a film piezoresistive sensor for a blood pressure detecting device of the present application. The third embodiment is basically the same as the first embodiment or the second embodiment, and the difference is that: the upper pressure sensor 810 and the lower pressure sensor 820 can use a pressure sensor with a smaller installation size, so that the overall structure of the blood pressure detecting device is smaller. Portable, for example, a film piezoresistive pressure sensor with a mounting size of less than 6 x 6 mm. In addition, a pressure sensor having a smaller size can be customized as needed in accordance with an embodiment of the present invention. Blood pressure detecting device embodiment four:

Referring to FIG. 9, FIG. 9 is a schematic structural diagram of Embodiment 4 of the blood pressure detecting device of the present application. As a further optimization of the foregoing embodiment, the blood pressure detecting device 900 in this embodiment may further include an upper elastic gas 911, the upper elastic gas. The 嚢 911 is disposed on the outer circumference of the upper pressure sensor 910, and the upper pressure sensor 910 is sealed in the upper elastic air 911. The material and structure of the upper elastic 911 and the cooperation principle with the upper pressure sensor are the same as the lower elastic air 嚢. , will not be detailed here.

It is worth mentioning that the elastic coefficient of the upper elastic gas 911 can be larger than the elastic coefficient of the lower elastic gas 921, and the difference is 20-50 times, so that the upper pressure sensor 910 of the upper elastic gas 911 having a large elastic modulus is sleeved. The dynamic response is lower than the lower pressure sensor 920 of the lower elastic gas cylinder 921 having a small elastic modulus.

The upper and lower pressure sensors of the blood pressure detecting device of the embodiment are respectively provided with elastic air enthalpy, so that the measurement data of the upper pressure sensor 910 can be more accurate, and the upper pressure sensor 910 is also very Good protection. Blood pressure detecting device embodiment five:

Please refer to FIG. 10. FIG. 10 is a schematic structural diagram of Embodiment 5 of the blood pressure detecting device of the present application. As a further development of the foregoing embodiment, the blood pressure detecting device 1000 may further include a display 1050, an operation key 1060, a voice prompt module 1070, a communication module 1080, an I/O interface 1090, and a housing 1100 each connected to the processor 1030.

The processor 1030, the upper pressure sensor 1010, and the lower pressure sensor 1020 are fixedly disposed inside the housing 1100, and the upper elastic air and the lower elastic air are respectively protruded from the upper and lower surfaces of the housing 1100 so as to be pressed. During the process, the upper elastic gas can contact the external pressing force, and the lower elastic gas can contact the position of the artery of the human wrist.

A display 1050 is provided on the upper surface of the housing 1100 for displaying related data information, preferably a liquid crystal or LED screen as the display 1050.

The operation key 1060 is disposed on the side or the upper surface of the housing 1100 for inputting the relevant operation control command to the blood pressure detecting device. The number of the operation keys 1060 may be one or more, and the setting position is not limited to The side or the upper surface, here the number and arrangement position of the operation keys 1060 are not limited.

The voice prompt module 1070, such as a speaker, can issue a voice prompt for the operation process and test results, which is convenient for the user to use, and enhances the human-machine communication experience.

The communication module 1080 is preferably in the form of wireless communication, specifically a Bluetooth module, a wireless network module or an NFC near field communication module. Of course, the communication module 1080 can also use wired communication, such as through a USB interface or an Ethernet interface and an external terminal. Communication. The communication module 1080 can also be provided with a unique device identification (ID) number, the user can set the personal account by entering the form of personal information, and the communication module 1080 can send the corresponding ID number and the data information measured by the blood pressure detecting device. Go to a remote server or mobile terminal to further analyze and store the data. The form of entering the personal information may be inputting the user's name or inputting the user's fingerprint through the fingerprint identification device.

The I/O interface 1090 is mainly used for the wired connection of the blood pressure detecting device and an external device, for example, The data is transmitted to the computer through the USB interface, the blood pressure detecting device is charged through the charging interface, etc., and will not be described in detail herein.

By further optimizing the function of the blood pressure detecting device of the above embodiment, the function of the blood pressure detecting device is further improved, and compatibility and practicability are stronger. Of course, in other embodiments, the blood pressure detecting device may also include only one or more of a display, an operation key, a voice prompt module, a communication module, an I/O interface, and a housing. Sensor assembly embodiment one:

The present invention also relates to a pressure sensor assembly including upper and lower pressure sensors disposed back to back, and a lower elastic gas pocket disposed around the outer circumference of the lower pressure sensing, the lower pressure sensor being sealed within the lower elastic air pocket. Specifically, in the present embodiment, the pressure sensor is on.

In a further preferred embodiment of the pressure sensor assembly, the pressure sensor assembly can also include an upper resilient gas pocket disposed over the periphery of the upper pressure sensor.

The upper and lower pressure sensors and the upper and lower elastic sensors, and the upper and lower elastic air cylinders in the above embodiments are described in detail in the above embodiments, and are not described herein again.

It is particularly required that the pressure sensor assembly can also be designed such that two pressure sensing circuits (upper pressure sensing circuit A and lower pressure sensing circuit B) are multiplexed in the same output circuit (multiplexing circuit DM) and packaged as a pressure sensor. Figure 11 is a circuit diagram of the multiplexing circuit of the sensor assembly. The pressure sensor assembly of this structure makes the structure simple and the force measurement more accurate. The structure, connection relationship, and functional principle of other components such as elastic gas are the same as those of the above embodiment, and will not be described herein. The pressure sensor assembly of this embodiment integrates two pressure sensors, allowing the sensors to interact directly and multiplex the same output circuit, making the measurement data more accurate while saving an output circuit and sensor housing. Arterial pulsation detecting device embodiment 1:

Referring to FIG. 19, FIG. 19 is a schematic structural diagram of Embodiment 1 of an arterial pulsation detecting device according to the present application. The arterial pulse detecting device includes a processor and a pressure sensor assembly and a housing as in the above embodiment, and the pressure sensor assembly and the processor are disposed in the housing, and the elastic gas is protruded from the lower surface of the housing. Specifically, the lower pressure sensor in the pressure sensor assembly is provided with a closed lower elastic air 嚢 191, and the lower elastic pressure sensor 191 is disposed on the human body artery position (ie, the human body artery position) The tissue, such as an arterial surface on the user's body, in addition, in this embodiment, the arterial pulse detecting device further includes a grip 192 coupled to the upper pressure sensor to facilitate the user to press the grip 192 to press the artery beat detecting device Press on the position of the human artery. For example, the grip 192 is disposed on a side of the upper pressure sensor away from the lower pressure sensor such that the upper pressure sensor can detect the pressure exerted by the user on the grip. Of course, in other embodiments, the arterial pulsation detecting device may not be provided with a handle according to actual needs, or other setting manners may be used, which is not limited herein.

Specifically, the processor is electrically connected to the upper pressure sensor and the lower pressure sensor, respectively. When the pulse detecting device receives the external pressure F, such as the user gripping the grip 192 and applying a force to cause the lower elastic gas to squeeze the position of the human artery, the processor acquires the upper pressure (external pressure F) detected by the upper pressure sensor and The downforce detected by the lower pressure sensor (the pressure generated by the position of the artery), and the difference or ratio between the lower pressure and the upper pressure is calculated. According to the analysis of the above embodiment, the difference or ratio is the pulse pressure of the artery position. (ie, the pulse instantaneous waveform of the arterial location), the processor outputs a pulse instantaneous waveform of the arterial location for the user to compare, analyze, and evaluate the pulse waveform of the arterial location.

In another embodiment, the processor may further transmit the pulse transient waveform of the artery position to the mobile terminal, and the mobile terminal displays the pulse waveform of the artery position to the user, and the amplitude of the pulse waveform of the artery or the mobile terminal to the artery The phase, frequency and other information are compared, analyzed and evaluated to obtain the internal state of the artery position. More precisely, the arterial pulse detecting device can be pressed at different arterial positions to obtain pulse waveforms of different arteries, and the mobile terminal analyzes differently. The parameters of the arterial pulse waveform, such as amplitude, phase, and frequency, are obtained from the human body.

Of course, in still another embodiment, the processor can also compare, analyze, and evaluate the pulse waveforms of the arterial location. Alternatively, the processor directly outputs the pressure detected by the upper and lower pressure sensors, and sends the pressure to the mobile terminal, and the mobile terminal performs a difference or ratio calculation on the pressure between the upper and lower pressure sensors. Pulse instantaneous waveform. Example 1 of blood pressure measurement method:

Referring to FIG. 12, FIG. 12 is a flowchart of Embodiment 1 of the blood pressure measuring method of the present application. The blood pressure detecting device of this embodiment is specifically the blood pressure detecting device described in the above embodiments, and can be used for measuring human body parameters such as pulse and blood pressure. The specific structure is as described above, and will not be described herein. Wherein, the blood pressure measuring method comprises the following steps:

Step S1201: The blood pressure detecting device worn on the limb of the user receives an external pressing force, wherein the blood pressure detecting device is provided with a back-to-back upper pressure sensor and a lower pressure sensor with a lower elastic air pocket on the outer circumference, the down pressure The sensor squeezes the position of the artery of the human limb through the outer elastic air sleeving.

For example, the user touches the lower elastic gas of the blood pressure detecting device at least partially with the pulse position of the wrist to ensure that the lower pressure sensor can sense the pressure generated by the position of the artery through the lower elastic gas, and the other hand presses The pressure sensor is a few seconds, such as 4 to 10 seconds, preferably 6 seconds. The change in the upper pressure generated by the pressing of the other hand, from loose to tight, the blood flow of the wrist artery is from smooth to blocked, then the pressure is tightened and then released, and the blood flow of the wrist artery is blocked from smooth to smooth. , to ensure that the user's high and low blood pressure values can be measured. The lower pressure sensor compresses the position of the artery of the human limb by the lower elastic air pocket which is sheathed around the outer circumference, so that the artery position generates a downward pressure when pressed.

Step S1202: The upper pressure sensor and the lower pressure sensor continuously perform pressure detection.

The upper and lower pressure sensors are respectively sensitive to an upward pressure from an external press and a downward pressure of an arterial position during pressing, wherein the lower pressure is a resultant force of the upper pressure reaction force and the pulse pressure.

Step S1203: The blood pressure detecting device synchronously acquires the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor.

For example, when the blood pressure detecting device receives a press, the force of the upper and lower pressure sensors is as shown in FIG. The processor of the blood pressure detecting device synchronizes the upper and lower pressures detected by the upper and lower pressure sensors, and all the upper pressures from the sample form a continuous upper pressure value, and all the downward pressures from the sample are continuously composed. The value of the downforce. Among them, the upper pressure changes are roughly as shown in Figure 2. Based on the principle that the force is equal to the reaction force, the lower pressure sensor in the lower elastic gas chamber is sensitive to the reaction force from the upper pressure sensor and the applied pressure, and is sensitive to the pulse pressure change from the wrist of the human body. As shown in Fig. 3, the downforce value of the lower pressure sensor sense output is the resultant force of the upper pressure reaction and the pulse pressure. Among them, in order to ensure accurate measurement of the pulse pressure, the upper and lower pressure sensors have higher sensitivity sensors, such as a micro-pressure sensor based on a nano-silicon film, a silicon piezoresistive sensor, and the like.

It should be noted that, in this embodiment, the pressure value of the digital signal is obtained by the sample, but in other embodiments, the pressure value obtained as the analog signal during the pressing process can be continuously obtained, which is not limited herein.

Step S1204: The blood pressure detecting device calculates the systolic blood pressure and the diastolic blood pressure of the human body based on the difference or the ratio between the lower pressure value and the upper pressure value.

The processor of the blood pressure detecting device compares the continuous downforce value with the upper pressure value to obtain a pulse pressure value of the artery position during pressing (as shown in FIG. 4), from which the user's systolic blood pressure is calculated. Diastolic blood pressure, or pulse cycle parameters.

Specifically, since the change of the pulse pressure is periodic, and the period is equal to the heartbeat period, after the pulse pressure value in the pressing process acquired by the processor in this embodiment, the peak value of the pulse pressure value during the pressing process is obtained, and the adjacent peak is calculated. The time between the two is used as the period of change of the pulse pressure, that is, the heartbeat period, wherein the average heart rate is obtained by performing a countdown on the heartbeat period. Of course, the processor may determine the change period according to the comparison determining the valley value or other existing methods for obtaining the heart rate according to the pulse pressure value, which is not limited herein.

When measuring blood pressure, the pressure applied by the upper pressure sensor during pressing is specifically from small to large, and then from large to small, so that the blood flow is blocked to a slow process of circulation. According to a large number of experimental data, when the upper pressure gradually increases to the systolic blood pressure (hypertension value), the blood flow of the wrist artery changes from unblocked to blocked. In the blocked state, the blood pressure is 0, that is, the lower pressure sensor senses The pulse pressure is 0; when the upper pressure is gradually reduced from large to systolic pressure, the blood flow of the wrist artery is blocked from smooth to until the upper pressure is reduced to the diastolic pressure (hypotension), the lower pressure sensor senses Pulse pressure is also 0, theoretical and experimental In combination, it was found that the pulse pressure induced by the lower pressure sensor was not zero except for the above two cases. In view of the above experimental verification, the present embodiment uses an innovative algorithm to obtain blood pressure values: After obtaining the pulse pressure value, the processor finds the time tl, 12 when the pulse pressure value is closest to 0 during the increase of the upper pressure. , or the sampling time t3, 14, when the pulse pressure value is closest to 0 during the upper pressure reduction process, and then the upper pressure value obtained at the two times, comparing the magnitudes of the two upper pressure detection values, the larger of the two It is judged that the blood pressure value measured at the wrist is small, and the smaller one is the low blood pressure value measured at the wrist. The processor converts the measured blood pressure value into a high and low blood pressure value of the heart based on the ratio of blood pressure between the heart and the wrist artery. Since the blood pressure conversion between the wrist artery position and the heart is common knowledge in the art, it will not be specifically described, and in the following embodiment, after obtaining the high and low blood values measured by the wrist artery position, the conversion to the heart level is performed by default. The steps of the blood pressure value.

It should be noted that, when measuring blood pressure, in order to make the measured pressure signal more accurate, the sampling period of the processor is set to milliseconds (ms), for example, l~10ms, preferably 2ms, and the time of the hand pressure is More than 4 seconds, for example, 6s, then each pressure value has 6000/2=3000 points in the curve of the pressing process, during which at least 3-6 complete heartbeat cycles are experienced, and each heartbeat period has at least 500. A sample of data greatly improves the accuracy of the heartbeat cycle, so that only the 3 to 6 heartbeat cycles can be used to accurately calculate the actual heartbeat cycle. It can be seen that the measurement time of the 6s of the present application is several hundred seconds shorter than the conventional method, and is shortened by several times.

Different from the traditional oscillometric method, a lot of calculations are needed to indirectly obtain blood pressure. This application can directly measure the blood pressure value by using a sufficiently sensitive pressure sensor and the above simple algorithm, which greatly reduces the calculation amount and calculation time, and is established in a large amount. On the experimental data, the obtained blood pressure value is relatively accurate, which is a major innovation in the field of blood pressure measurement. At the same time, the traditional oscillometric method takes a long time to obtain a large number of pulse signals, ensuring the accuracy of the envelope normalized from the pulse signal. However, the method for directly obtaining the blood pressure value in the above application completely deviates from the envelope, so that it takes no time to obtain an accurate blood pressure value in a few seconds. Moreover, the measurement can be carried out directly by hand, without the need to provide a gas-filling gas pump and air pump, which greatly reduces the volume and weight, and makes the detection device lighter. Further, since the detecting device of the present application is light, it can be set as a wrist-worn type, and real-time detection of the pulse and blood pressure of the human body can be realized. In addition, it is further superior to the existing air pump type sphygmomanometer, which needs to slowly deflate during the depressurization process to measure the blood pressure, and the pressing force is equal to the contraction during the external pressure increase (pressurization) and reduction (depression). In the case of pressure or diastolic pressure, and the present application does not require air pump to add air and pressure, no noise will affect the blood pressure measurement, so this application can select one of the processes of pressure or blood pressure to measure blood pressure, or can simultaneously select pressure and subtraction The pressure process measures the blood pressure values on both sides, and obtains more accurate blood pressure values through the average value.

Of course, this embodiment is an optimization example. In other embodiments, the blood pressure detecting device of the present application can also obtain the pulse pressure value, and the existing other methods for obtaining high and low blood pressure according to the pulse pressure value or the relative pulse pressure value can be used. The high and low blood pressure values are obtained. Therefore, the blood pressure values, such as the waveform characteristic method and the amplitude coefficient method, can be obtained by calculating and analyzing the pulse pressure value during the pressing process by using the existing oscillometric method. Embodiment 2 of blood pressure measurement method:

As a more optimized embodiment, in order to improve the accuracy of the pulse pressure, the processor of the blood pressure detecting device performs a ratio calculation between the lower pressure value and the upper pressure value after synchronizing the upper and lower pressure values, and obtains the above pressure value as a denominator. The relative value of pulse pressure. The blood pressure detecting device is closer to the pulse as the applied pressing force increases. At this time, the stronger the pulse pressure sensed by the pressure sensor device, that is, the more accurate, the data of the measured pulse pressure change and the applied pressing force are eliminated. In order to better reduce the measured pulse pressure, especially when the applied pressure is small, the error between the pulse pressure and the actual measured. The peak value of the pulse pressure is determined by comparing the relative values of the pulse pressures, and the average heart rate is calculated. And find out two times when the relative value of the pulse pressure is closest to 1 during the pressing process, and then obtain the upper pressure value obtained from the two moments from the upper pressure detection signal, and compare the magnitudes of the two upper pressure detection values, which are large It is judged to be a high blood pressure value, and a small judgment is a low blood pressure value. Embodiment 3 of blood pressure measurement method:

Please refer to FIG. 14. FIG. 14 is a flowchart of Embodiment 3 of the blood pressure measuring method of the present application. The blood pressure detecting device of this embodiment is specifically the blood pressure detecting device described in the above embodiments, and can be used for measuring human body parameters such as pulse and blood pressure. The specific structure is as described above, and will not be described herein. Where the blood pressure measurement The method includes the following steps:

Step S1401: The blood pressure detecting device worn on the limb of the user acquires at least the downforce value of the lower pressure sensor in one pulse cycle when the external pressing force is not received, and constitutes a pulse pressure change curve.

For example, the lower elastic gas volume of the blood pressure detecting device at least partially touches the position of the limb artery of the user, and when the external pressing force is not received, the processor of the blood pressure detecting device measures the depression value of the pressure sensor at least in one pulse period. , all downforce values obtained from the sample constitute a pressure curve as a function of time. Since the down pressure value detected by the lower pressure sensor is the normal pulse pressure value when the external pressing force is not received, the pressure change curve is the pulse pressure change curve.

Step S1402: The blood pressure detecting device calculates a proportional relationship between the pulse high pressure value and the pulse low pressure value according to the pulse pressure change curve, and further obtains a proportional relationship between the human systolic blood pressure and the diastolic blood pressure.

The blood pressure detecting device acquires the peak value and the bottom value of the pulse pressure change curve, and calculates the ratio between the peak value and the bottom value as a proportional relationship between the pulse high and low pressure values, and further serves as a proportional relationship between the human systolic blood pressure and the diastolic blood pressure.

Step S1403: The blood pressure detecting device receives an external pressing force, wherein the blood pressure detecting device is provided with a back-to-back upper pressure sensor and a lower pressure sensor with a lower elastic air pocket on the outer circumference, and the lower pressure sensor is sleeved through the outer circumference The lower elastic air squeezes the position of the artery of the human limb.

Step S1404: The upper pressure sensor and the lower pressure sensor continuously perform pressure detection.

Step S1405: The blood pressure detecting device synchronously acquires the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor.

Step S1406: The blood pressure detecting device determines the systolic blood pressure or the diastolic blood pressure of the human body based on the difference or the ratio. As described in the first and second embodiments, the systolic or diastolic blood pressure of the human body is obtained from the difference or ratio between the lower and upper pressure values.

Step S1407: The blood pressure detecting device calculates a corresponding diastolic blood pressure or systolic blood pressure according to a proportional relationship between the human systolic blood pressure and the diastolic blood pressure.

For example, the processor of the blood pressure detecting device obtains a systolic pressure based on the difference or the ratio, according to the systolic pressure The proportional relationship with diastolic blood pressure is diastolic. Or the processor receives a diastolic pressure, and the systolic pressure is obtained according to the proportional relationship between the systolic pressure and the diastolic pressure. Smart wristband embodiment 1:

Referring to FIG. 15, FIG. 15 is a schematic perspective structural view of a first embodiment of the smart wristband of the present application. The smart wristband includes a wristband 151 and a blood pressure detecting device 152, wherein the blood pressure detecting device 152 is the blood pressure detecting device in the above embodiment, the blood pressure detecting device 152 is fixed on the wristband 151, and the blood pressure detecting device 152 The lower elastic gas cylinder 1521 protrudes from the inner side of the wristband 151. In this embodiment, the wristband 151 is a rubberized belt loop, and the wristband 151 and the blood pressure detecting device 152 can be fixed, bundled, or connected.

Further, the smart wristband further includes a function expanding device 153. The function expanding device 153 can be an hour hand watch dial, a smart watch dial, a wireless MP3, a backup power source or a small communication device, etc., so that the smart wristband can be used for detecting a human body pulse. In addition to the blood pressure parameters, there are many other functions.

A corresponding card slot or fixed mechanism for other extended peripherals such as the accommodating function expansion device 153 is reserved on the wristband, so that the user can personally install the favorite extended peripherals as needed to realize the corresponding additional functions. More specifically, the card slot or the fixing mechanism may further be provided with electrode terminals for communication and for supplying power, and the electrode terminals are connected to the pressure sensor, the processor, and the like in the blood pressure detecting device 152, and the extended peripherals (including The blood pressure detecting device is respectively provided with electrode terminals for communication or power supply at respective positions, and when the extension peripheral is fixed to the card slot or the fixing mechanism on the wristband 151, the electrode terminal of the peripheral device and the electrode terminal on the wristband 151 are extended. Corresponding electrical connections are made to enable communication between the extended peripheral and the smart wristband, and to power the smart wristband with a battery in the extended peripheral, or to power the extended peripheral with a battery in the smart wristband. The end or connection of the wristband 151 may be provided in the form of a USB or other connection terminal to facilitate the charging of the extended peripheral (including the blood pressure detecting device) or the implementation of the extended peripheral (including the blood pressure detecting device) and other devices by the wristband 151. Physical connection.

The present application also provides another embodiment of a smart wristband including a processor and the pressure sensor assembly described in the above embodiments, wherein the processor user acquires the upper pressure sensing in the pressure sensor assembly The upper pressure detected by the device and the downforce generated by the lower elastic gas damper detected by the lower elastic gas cylinder under the upper pressure pressing. Optionally, the processor can directly display the upper and lower pressure signals, or obtain a difference or a ratio between the lower and upper pressure signals, and obtain a self-pressure signal generated by the measured part under the upper pressure, and can further The self-pressure signal obtains information such as the vibration frequency of the measured portion, changes in its own pressure, and the like. Smart wristband embodiment II:

Please refer to FIG. 16, which is a schematic perspective view of a second embodiment of the smart wristband of the present application. This embodiment is basically the same as the structure of the first embodiment except that the wristband is a wristband in the form of an elastic fiber tape.

It should be noted that, in other embodiments, the wristband of the smart wristband of the present application may also be a metal bracelet or a leather strap or the like, which is not limited herein.

In addition, in another embodiment, the wristband of the smart wristband of the present application can be configured to be wirelessly charged, and the wristband is electrically connected to the pulse detecting device. If there is a coil in the wristband, wireless charging is performed by electromagnetic induction and an external power source, and the radio energy can be transmitted to the pulse detecting device or the processor. Smart watch embodiment 1:

The invention also discloses a smart watch, which is different from the traditional watch in that the smart watch further comprises the blood pressure detecting device described in the above embodiment, so that the smart watch has the function of blood pressure detecting, the structure of the blood pressure detecting device and For the working principle, please refer to the above embodiment of the blood pressure detecting device, and details are not described herein again. Communication system embodiment 1:

Referring to FIG. 17, FIG. 17 is a schematic structural diagram of Embodiment 1 of a communication system according to the present application. The communication system includes the blood pressure detecting device 1710 and the terminal 1720 described in the above embodiment, the blood pressure detecting device 1710 includes a first communication module 1711, and the terminal includes a second communication module 1721. The first communication module 1711 and the second communication module 1721 can implement wired or wireless communication, and the blood pressure detecting device is related. Information is sent to the terminal for in-depth analysis and long-term preservation of the user's blood pressure data.

Specifically, the first communication module 1711 is configured to communicate with the second communication module 1721 in the terminal 1720 according to the instruction of the processor in the blood pressure detecting device 1710 to implement information interaction between the blood pressure detecting device 1710 and the terminal 1720. The second communication module 1721 is configured to communicate with the first communication module 1711 in accordance with an instruction of the terminal 1720. The first communication module 1711 and the second communication module 1721 may be Bluetooth, infrared, wifi, or wired communication modules, which are not limited herein. Specifically, the first communication module 1711 can be directly fixedly disposed inside or on the surface of the blood pressure detecting device 1710, or the first communication module 1711 can be detachably disposed on the blood pressure detecting device 1710. For example, the first communication module 1711 passes through an insertion interface such as The USB interface is provided on the blood pressure detecting device 1710. In the present embodiment, the first communication module 1711 is the communication circuit of the blood pressure detecting device of the above embodiment.

For example, the blood pressure detecting device 1710 and the terminal 1720 are connected by the first communication module 1711 and the second communication module 1721. The blood pressure detecting device 1710 is provided with a unique identification number, and the user uses the blood pressure detecting device 1710 to perform measurement to obtain measurement results, such as pulse pressure curve, average heart rate, high and low blood pressure, and other human body parameters, as well as measurement time and tester name, blood pressure. The processor of the detecting device 1710 actively or when receiving the input command of the user, packs the measurement result and the identification number according to the communication protocol with the first and second communication modules, and controls the first communication module 1711 to data. The packet is sent to the second communication module 1721 of the terminal 1720.

The second communication module 1721 of the terminal 1720 parses the data packet to obtain a measurement result and an identification number of the wrist device that transmits the measurement result. The terminal 1720 identifies the identity identification number. If it is determined that the identity identification number information is not stored in the local database, the file of the identity identification number is created, and the measurement result is stored in the file; if it is determined that the local database has been established, The file of the identification number directly stores the measurement result in the file of the identification number.

Further, the terminal 1720 can also be used to further analyze data, identify pulse data, make an evaluation of the user's physical condition, and give corresponding suggestions. Specifically, the terminal 1720 determines the physical condition of the user according to the pulse and blood pressure data of the user through the locally stored pathological feature data or through the Internet to perform related pathological feature search, and searches for a related treatment plan or diet suggestion. More Further, the terminal 1720 is pre-set with a pulse and blood pressure data reference value, and when determining that the user's pulse or blood pressure data exceeds the reference value, sends a help signal to the preset third party, for example, automatically calling the relative of the user or the hospital for help. phone.

To better understand the application of the communication system of the present application, a specific example is given. The user sets the blood pressure detecting device on the wristband and wears it on the wrist, and raises the pressure sensor correspondingly to the pulse position. Since the blood pressure detecting device is a wristband type, the user's wrist can be freely moved after being worn, and does not cause any inconvenience to the user. The user can select whether to connect to the terminal and select which terminal, such as an IPHONE mobile phone, through the relevant button on the blood pressure detecting device. When the user selects the connection, the communication function of the terminal selected and installed with the corresponding software, such as Bluetooth, wifi, etc., is connected with the blood pressure detecting device. After the connection is successful, the terminal forms a communication system with the blood pressure detecting device worn on the wrist. When the measurement is needed, the user only needs to hold the wrist device with the other hand for a few seconds, and the blood pressure detecting device can measure the user's pulse pressure data, average heart rate, blood pressure and the like. The blood pressure detecting device automatically transmits the measured data to the terminal, and the terminal saves the data, and presents the current pulse curve, the average heart rate, and the blood pressure value to the user according to the pulse pressure data, and makes a diagnosis and search for the treatment plan according to the above data. And displayed on the screen. The user can clear the current physical condition through the terminal, and can send the data to other terminals through the terminal, such as a computer held by the doctor, a tablet computer, etc., so that the doctor can know the physical condition of the user in time.

In this embodiment, the blood pressure detecting device and the terminal form a small communication system, and the transmission of the human body parameters is realized, and the storage of the human body parameters by the terminal facilitates tracking of the user historical measurement data and real-time monitoring of the user's physical condition. Moreover, relying on the terminal's strong processing capability, the human body parameters can be analyzed more comprehensively, and the diagnosis and treatment plan can be provided to the user to realize the intelligent integration of human body parameter measurement and diagnosis. Embodiment 2 of the communication system:

Referring to FIG. 18, FIG. 18 is a schematic structural diagram of Embodiment 2 of a communication system according to the present application. The communication system includes a blood pressure detecting device 1810, a terminal 1820, and a cloud server 1830, wherein the blood pressure detecting device The communication mode between the terminal 1810 and the terminal 1820 is the same as that of the previous embodiment, and details are not described herein. In this embodiment, the terminal 1820 further includes a third communication module 1822 for connecting to the cloud server 1830, for example, through an Ethernet connection. Different wrist devices 281 enter the Internet through the terminal 1820, and form a large-scale real-time cloud service system with the terminal 1820 and the cloud server 1830 through the cloud service software of the Internet server, so as to provide a continuous, long-term, tracking form to the detecting device. Cloud service. In this embodiment, in consideration of the processing speed of the terminal and the network transmission rate, the terminal 1820 is configured to be connected only to the blood pressure detecting device 1810, and the different blood pressure detecting devices 1810 and the cloud server 1830 constitute a cloud service system through different terminals 1820. However, in other embodiments, different blood pressure detecting devices may be connected to the same terminal and form a cloud service system through the same terminal and server.

The present application also provides a communication system including an arterial pulsation detecting device, a smart wristband or a smart watch and a terminal as in the above embodiment, wherein an arterial pulsation detecting device, a smart wristband or a smart watch and a terminal are The connection and communication methods are as in the above two embodiments, and are not described herein.

The above is only one embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent device or equivalent process transformation made by using the present specification and the contents of the drawings may be directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Claims

Rights request

1. A blood pressure detection device, characterized in that it includes:

The upper pressure sensor and the lower pressure sensor are arranged back to back. The lower pressure sensor is surrounded by a sealed lower elastic air bladder. The lower pressure sensor squeezes the artery position of the human body limbs through the lower elastic air bladder set on the outer periphery;

A processor, electrically connected to the upper pressure sensor and the lower pressure sensor;

The processor obtains the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor, and calculates the human blood pressure value based on the difference or ratio between the lower pressure value and the upper pressure value.

2. The blood pressure detection device according to claim 1, wherein the processor includes a pressure acquisition module, a pressure calculation module and a blood pressure calculation module;

The pressure acquisition module is used to synchronously acquire the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor when the blood pressure detection device accepts external pressing force; the pressure calculation module is used to Calculate the difference or ratio between the lower pressure value and the upper pressure value;

3. The blood pressure detection device according to claim 2, characterized in that,

The blood pressure calculation module is specifically used to obtain the two upper pressure values corresponding to the two moments when the difference is closest to 0 or the ratio is closest to 1 during the process of receiving external pressing force and increasing or decreasing the external pressing force. , the systolic pressure is obtained from the larger value of the two upper pressure values, and the diastolic pressure is obtained from the smaller value.

4. The blood pressure detection device according to claim 2 or 3, further comprising a proportion calculation module;

The pressure acquisition module is also used to obtain at least the lower pressure value of the lower pressure sensor within one pulse cycle when the blood pressure detection device does not receive external pressing force, and form a pulse pressure change curve; the proportion calculation module is used to Calculate the proportional relationship between the pulse high pressure value and the pulse low pressure value according to the pulse pressure change curve, and then obtain the proportional relationship between the human body's systolic blood pressure and diastolic blood pressure; diastolic blood pressure, and then calculate the corresponding diastolic blood pressure or systolic blood pressure according to the proportional relationship between the human body's systolic blood pressure and diastolic blood pressure.

5. The blood pressure detection device according to any one of claims 2 to 4, characterized in that the pressure acquisition module is specifically configured to synchronously acquire all the samples according to a preset cycle when the blood pressure detection device receives external pressing force. The pressure values of the above pressure sensor and the lower pressure sensor are used to obtain the upper pressure value and the lower pressure value in the process of receiving external pressing force.

6. The blood pressure detection device according to any one of claims 1 to 5, characterized in that, the blood pressure detection device further includes at least one of a display, operation keys, a voice prompt module, a communication module, and an I/O interface. , in,

The display is electrically connected to the processor and is used to display relevant information of the blood pressure detection device; the operation keys are electrically connected to the processor and is used to input control commands;

The voice prompt module is electrically connected to the processor and is used to provide voice prompts on the operation process and test results of the blood pressure detection device;

The communication module is electrically connected to the processor and is used to input the user's personal information and send the user's detection information to realize the communication connection between the blood pressure detection device and an external mobile terminal;

The I/O interface is electrically connected to the processor, and is used to wire the blood pressure detection device to the external mobile terminal or to charge the blood pressure detection device.

7. The blood pressure detection device according to claim 6, wherein the communication module is a Bluetooth module, a wireless network module or an NFC near field communication module.

8. A pressure sensor assembly, characterized by including:

The upper pressure sensor and the lower pressure sensor are arranged back-to-back;

The lower elastic air bladder is sleeved on the outer periphery of the lower pressure sensor, and the lower pressure sensor is sealed in the lower elastic air bladder.

9. The pressure sensor assembly according to claim 8, characterized in that, the pressure sensor assembly further includes an upper elastic gas bag, the upper elastic gas bag is sleeved on the outer periphery of the upper pressure sensor, and the upper pressure sensor The sensor is sealed in the upper elastic bladder.

10. The pressure sensor assembly according to claim 9, wherein the elastic coefficient of the upper elastic gas bag is greater than the elastic coefficient of the lower elastic gas bag.

11. The pressure sensor assembly according to claim 9 or 10, wherein the outer periphery of the upper and lower elastic gas bladders is convex hemispherical, and the material of the upper and lower elastic gas bladders is rubber.

12. The pressure sensor assembly according to any one of claims 8 to 11, characterized in that the upper and lower pressure sensors are silicon piezoresistive sensors or thin film piezoresistive sensors.

13. An arterial pulse detection device, characterized in that it includes a pressure sensor assembly and a processor. The pressure sensor assembly includes an upper pressure sensor and a lower pressure sensor arranged back to back. The lower pressure sensor is surrounded by a sealed lower pressure sensor. Elastic air bladder, the lower pressure sensor squeezes the position of human artery through the lower elastic air bladder set on the periphery;

The processor is electrically connected to the upper and lower pressure sensors respectively, and is used to obtain pressure information of the pressure sensor assembly.

14. The device according to claim 13, wherein the processor is specifically configured to obtain the difference between the pressure values detected by the lower pressure sensor and the upper pressure sensor when the arterial pulse detection device accepts external pressure. The difference or ratio of is used as the instantaneous pulse waveform at the artery location.

15. A smart wristband, characterized in that the smart wristband includes a pressure sensor component and a processor,

The pressure sensor assembly includes an upper pressure sensor and a lower pressure sensor arranged back to back, and a lower elastic gas bag sleeved on the outer periphery of the lower pressure sensor. The lower pressure sensor is sealed in the lower elastic gas bag, and Set at the location of human arteries;

The processor is electrically connected to the upper and lower pressure sensors respectively, and is used to output the pressure information of the pressure sensor assembly when the arterial pulse detection device accepts external pressure.

16. A blood pressure measurement method, characterized by including the following steps:

The blood pressure detection device worn on the user's limb receives external pressing force. The blood pressure detection device is provided with back-to-back upper pressure sensors and a lower pressure sensor with a lower elastic air bag on the outer periphery. The lower pressure sensor passes through the outer periphery. The sleeved lower elastic air bladder squeezes the arteries of human limbs; The upper pressure sensor and the lower pressure sensor continuously perform pressure detection;

The blood pressure detection device synchronously obtains the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor;

The blood pressure detection device calculates the human blood pressure value based on the difference or ratio between the lower pressure value and the upper pressure value.

17. The method according to claim 16, wherein the step of obtaining the human blood pressure value based on the difference or ratio includes:

The blood pressure detection device obtains the two upper pressure values corresponding to the two moments when the difference is closest to 0 or the ratio is closest to 1 when the external pressing force is received and the external pressing force increases or decreases. The larger value of the two upper pressure values is used to obtain the systolic pressure, and the smaller value is used to obtain the diastolic pressure.

18. The method according to claim 16 or 17, characterized in that, the method further includes: when the blood pressure detection device does not receive external pressing force, the blood pressure detection device at least acquires the pressure in one pulse cycle. The lower pressure value of the lower pressure sensor forms a pulse pressure change curve; the blood pressure detection device calculates the proportional relationship between the pulse high pressure value and the pulse low pressure value according to the pulse pressure change curve, and then obtains the proportional relationship between the human body's systolic blood pressure and diastolic blood pressure;

The step of calculating the human blood pressure value based on the difference or ratio between the lower pressure value and the upper pressure value includes:

The blood pressure detection device obtains the systolic blood pressure or diastolic blood pressure of the human body based on the difference or ratio; and calculates the corresponding diastolic blood pressure or systolic blood pressure based on the proportional relationship between the human body's systolic blood pressure and diastolic blood pressure.

19. The method according to any one of claims 16 to 18, wherein the step of synchronously acquiring the upper pressure value detected by the upper pressure sensor and the lower pressure value detected by the lower pressure sensor includes: :

The blood pressure detection device continuously acquires or samples the pressure values detected by the upper pressure sensor and the lower pressure sensor synchronously according to a preset period, and obtains the upper pressure value and the lower pressure value during the process of receiving external pressing force.

20. The method according to any one of claims 16 to 19, characterized in that the sample preparation cycle The period is between 1 and 10 milliseconds, and the pressing time is greater than 4 seconds.

21. A smart wristband, characterized in that it includes a blood pressure detection device fixed on the wristband, and the blood pressure detection device includes:

A lower elastic air bag, the lower elastic air bag is sleeved on the outer periphery of the lower pressure sensor;

A processor, electrically connected to the upper and lower pressure sensors;

The processor obtains the upper pressure value and the lower pressure value synchronously fed back by the upper and lower pressure sensors, calculates the difference or ratio between the lower pressure value and the upper pressure value, and obtains the human body value based on the difference or ratio. blood pressure value.

22. The smart wristband according to claim 21, characterized in that the wristband is a rubber belt loop, a wristband in the form of an elastic fiber cloth strap, a metal bracelet or a leather watch strap.

23. The smart wristband according to claim 21 or 22, characterized in that, the smart wristband further includes a function expansion device, the function expansion device is fixed on the wristband, and the function expansion device is a clock hand Watch dial, smart watch dial, wireless MP3, power supply or small communication equipment, the fixation form of the function expansion device and the wristband is a bundled, snap-on or articulated type.

24. A smart watch, including a dial, a watch strap and a time display device, the time display device being fixed on the dial, the dial being fixed on the watch strap, characterized in that, including a time display device fixed on the watch The blood pressure detection device on the watch strap, the blood pressure detection device includes:

Lower elastic air bladder, the lower elastic air bladder is sleeved on the outer periphery of the lower pressure sensor, and the lower pressure sensor squeezes the artery position of the human limb through the elastic air bladder sleeved on the outer periphery;

A processor, electrically connected to the upper and lower pressure sensors;

25. A communication system, characterized in that the communication system includes a blood pressure detection device and a terminal, The blood pressure detection device includes:

A processor, electrically connected to the upper and lower pressure sensors;

The processor obtains the upper pressure value and the lower pressure value synchronously fed back by the upper and lower pressure sensors, calculates the difference or ratio between the lower pressure value and the upper pressure value, and obtains the human body value based on the difference or ratio. blood pressure value;

The blood pressure detection device also includes a first communication module, and the terminal includes a second communication module. The first and second communication modules can be connected to realize communication between the blood pressure detection device and the terminal.