WO2015143728A1

WO2015143728A1 - Blood pressure detection device and measuring method, related device and communication system

Info

Publication number: WO2015143728A1
Application number: PCT/CN2014/074327
Authority: WO
Inventors: 孙尚传; 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: CN105392418A; CN105392418B

Abstract

A blood pressure detection device and measuring method, related device and communication system, the blood pressure detection device (100) comprising: a pressure sensor (110, 710), and a resilient air bag (111) sleeved on the periphery of the pressure sensor (110, 710), the pressure sensor (110, 710) pressing the location of arteries of a human limb via the resilient air bag (111) sleeved on the periphery; a processor (120, 420, 620, 720, 820) is electrically connected to the pressure sensor (110, 710), and calculates and obtains a human blood pressure value according to the pressure outputted by the pressure sensor (110, 710). The method can improve the precision of the pressure of the pressure sensor (110, 710) on the location of arteries, thus obtaining an accurate blood pressure value.

Description

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

[Technical Field]

The invention designs a technical field of human body pulse information measurement, in particular to a blood pressure detecting device and Measurement methods, related devices, and communication systems.

【Background technique】

Currently the most popular blood pressure measuring device, which uses the traditional oscillometric method, this method has 100 For many years, it uses an inflatable cuff or wristband to block arterial blood flow, and during slow deflation, blood is detected. The vibration wave of the tube wall and the relationship between the envelope of the vibration wave and the vibration wave are used to estimate the blood pressure. The calculation of blood The process of pressing is very complicated, and the main disadvantages of the envelope of the vibration wave are usually: volume, weight, It consumes a lot of power and it takes a few hundred seconds to measure.

Pulse pressure sensor for sensitive pulse beat pressure, and thus for pulse high, low pressure and heart The law is measured to obtain a user's health assessment. However due to the pressure sensor for measuring position and measurement The posture is very demanding, if the pressure sensor does not accurately correspond to the pulse position or the measurer slightly changes during the measurement Variable movements may result in inaccurate measurement pressures. Therefore, the blood pressure value measured by the blood pressure detecting device is also refined. The accuracy is low.

[Summary of the Invention]

Embodiments of the present invention provide a blood pressure detecting device, a measuring method, a related device, and a communication system, which are capable of Improve the accuracy of the pressure sensor's pressure on the arterial position to obtain accurate blood pressure values.

In order to solve the above problems, an embodiment of the present invention provides a blood pressure detecting device, including: a pressure sensor, And an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensor being sleeved through the outer circumference An elastic balloon compresses an artery position of a human limb; a processor electrically connected to the pressure sensor, The processor calculates a blood pressure value of the human body based on the pressure output by the pressure sensor.

Wherein the processor comprises a pressure acquisition module and a blood pressure calculation module, and the pressure acquisition module is used for Obtaining the pressure sensor to detect an arterial position while the blood pressure detecting device receives an external pressing force a pressure generated to obtain a continuous pressure signal; the blood pressure calculation module is configured to calculate the pressure signal Systolic and diastolic blood pressure at the location of the artery were calculated.

Wherein the blood pressure calculation module is specifically configured to be obtained according to the process of increasing and/or decreasing the pressing force The resulting pressure signal calculates the systolic and diastolic pressures at the location of the artery.

Wherein the blood pressure calculation module includes an establishing unit and a searching unit, and the establishing unit is configured to The pressure signal obtained during the increase or decrease of the pressure is established, and the upper envelope and the base are respectively established. a line and a lower envelope; the lookup unit is configured to find a first inflection point and a a second inflection point, the maximum value of the pressure signal corresponding to the first inflection point is taken as the systolic pressure of the artery position, The second inflection point corresponds to the maximum value of the pressure signal as the diastolic pressure of the artery position.

Wherein the processor further includes a proportional calculation module; the pressure acquisition module is further configured to use the blood pressure The detecting device acquires the pressure detected by the pressure sensor when receiving the external pressing force, and obtains continuous a pulse pressure signal including at least one pulse period; the ratio calculation module is for using the pulse Find the highest pulse pressure value and the lowest pressure pulse low pressure value in the pressure signal, and calculate the The proportional relationship between the pulse pressure value and the pulse low pressure value as the proportional relationship between the systolic blood pressure and the diastolic blood pressure; The blood pressure calculation module is specifically configured to be obtained according to the process of increasing and/or decreasing the pressing force The pressure signal calculates the systolic or diastolic pressure of the arterial position, and then according to the human systolic blood pressure and The proportional relationship of the tension is calculated for the corresponding diastolic or systolic pressure.

Specifically, the method includes at least two pressure sensors disposed at intervals, and respectively disposed on the at least two At least two elastic airbags on the outer circumference of the pressure sensor, the at least two pressure sensors respectively passing outside The circumferentially fitted elastic airbag squeezes different arterial positions of the human limb; the processor also includes attenuation calculations a module and a blood pressure conversion module; the pressure acquisition module is specifically configured to be unacceptable in the blood pressure detecting device When pressing, respectively acquiring the pressure detected by each of the pressure sensors to obtain each of the pressures a continuous pulse pressure signal including at least one pulse period of the sensor output; the attenuation calculation mode a block for outputting between peaks or valleys of pulse pressure signals according to any two of said pressure sensors The difference between the difference and the distance between any two pressure sensors corresponding to the position of the artery to calculate the position of the artery Blood pressure is related to the attenuation relationship between the position of the artery and the distance between the hearts; the blood pressure calculation module is specifically used according to any Isaid that the pressure sensor receives a pressing force at the blood pressure detecting device and the pressing force is increased and/or Reducing the pressure signal output during the process to obtain systolic blood pressure and relaxation of the pressure sensor corresponding to the position of the artery Pressurizing; the blood pressure conversion module is configured to perform systolic pressure according to the attenuation relationship, the corresponding arterial position Diastolic pressure, the systolic and diastolic blood pressure of the heart.

Wherein, the outer circumference of the elastic airbag is convex hemispherical, and the elastic airbag is made of rubber.

Wherein, the pressure sensor is a silicon piezoresistive sensor or a thin film piezoresistive sensor.

Wherein, the blood pressure detecting device further comprises a display, an operation key, a voice prompt module, and a communication mode At least one of a block, an I/O interface, wherein the display is electrically coupled to the processor for display Information about the blood pressure detecting device; the operation key is electrically connected to the processor for input control Commanding; the voice prompting module is electrically connected to the processor for giving the blood pressure detecting device a voice prompt of the operation process and the test result; the communication module is electrically connected to the processor for input Entering the personal information of the user and transmitting the detection information of the user to implement the blood pressure detecting device and the external a communication connection of the mobile terminal; the I/O interface is electrically connected to the processor for detecting the blood pressure The device is wired to the external mobile terminal or charges the blood pressure detecting device.

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

In order to solve the above problems, an embodiment of the present invention provides a blood pressure detecting apparatus, including: an interval setting At least two pressure sensors, and at least two sleeves respectively disposed on the outer circumferences of the at least two pressure sensors Elastic airbags, wherein the at least two pressure sensors respectively detect different human limbs through the elastic airbag An arterial position; a processor electrically coupled to the at least two pressure sensors, the processor being The pulse pressure output by the at least two pressure sensors calculates the arterial position blood pressure with the arterial position The attenuation relationship between the distance between the heart and the heart, according to the output of the pressure sensor during the process of receiving the pressing force The pressure is calculated to obtain the blood pressure value of the pressure sensor corresponding to the position of the artery, and then according to the attenuation relationship and The blood pressure value at the arterial position is the blood pressure value of the heart.

Wherein, the processor includes a pressure acquisition module, an attenuation calculation module, a blood pressure calculation module, and a blood pressure transfer Changing the module; the pressure acquiring module is configured to be the same when the blood pressure detecting device does not receive the pressing force Steps to obtain the pressure detected by each of the pressure sensors to obtain a connection of each of the pressure sensor outputs Continuing to include at least one pulse period pulse pressure signal; the attenuation calculation module is configured to The difference between the peaks or valleys of the pulse pressure signals output by the two pressure sensors and the Arterial position blood pressure with arterial position calculated from the distance between any two pressure sensors corresponding to the position of the artery Attenuation relationship with distance between the hearts; the blood pressure calculation module is for sensing pressure according to any one The pressure sensor is obtained when the blood pressure detecting device receives a pressure signal outputted during a pressing process Systolic pressure and diastolic pressure corresponding to the position of the artery; the blood pressure conversion module is configured to The systolic and diastolic pressures of the arterial position result in systolic and diastolic blood pressures of the heart.

In order to solve the above problems, an embodiment of the present invention provides a blood pressure measurement method, including the following steps: The blood pressure detecting device provided on the limb of the user receives an external pressing force, wherein the blood pressure detecting device is provided A pressure sensor with an elastic airbag is disposed on the outer circumference, and the pressure sensor is elastically sheathed through the outer circumference The capsule squeezes the position of the artery of the human limb; the pressure sensor continues to perform pressure detection; the processor The blood pressure value of the human body is calculated based on the pressure output from the pressure sensor.

Wherein the control calculates the systolic blood pressure and relaxation of the human body according to the pressure output by the pressure sensor The step of pressing includes: acquiring the pressure sensing during the process of receiving the external pressing force by the blood pressure detecting device The device detects the pressure at the location of the artery, obtains a continuous pressure signal; calculates from the pressure signal Systolic and diastolic blood pressure at the site of the artery.

Wherein the step of calculating the systolic blood pressure and the diastolic blood pressure of the arterial position according to the pressure signal comprises: Calculating the arterial position based on the pressure signal obtained during the increase and/or decrease of the pressing force Systolic and diastolic blood pressure.

Wherein the calculation is based on the pressure signal obtained during the increase and/or decrease of the pressing force The step of obtaining systolic blood pressure and diastolic blood pressure at the position of the artery includes: increasing or decreasing according to the pressing force The pressure signals obtained in the process are respectively established on the upper envelope, the baseline and the lower envelope; Describe the first inflection point and the second inflection point of the envelope and the baseline, and the first inflection point corresponds to the most pressure signal The large value is the systolic blood pressure of the artery position, and the maximum value of the pressure signal corresponding to the second inflection point is used as the artery. Diastolic pressure at the location.

The method further includes: acquiring the pressure sensing when the blood pressure detecting device does not receive an external pressing force The pressure detected by the device, obtaining a continuous pulse pressure signal including at least one pulse period; Find the highest pulse pressure value and the lowest pressure pulse low pressure value in the pulse pressure signal, and calculate The proportional relationship between the pulse high pressure value and the pulse low pressure value as a ratio of systolic blood pressure and diastolic blood pressure The calculation is based on the pressure signal obtained during the increase and/or decrease of the pressing force The step of systolic blood pressure and diastolic blood pressure to the position of the artery includes: during the increase and/or decrease of the pressing force The obtained pressure signal calculates a systolic blood pressure or a diastolic blood pressure at the position of the artery; The proportional relationship between contraction and diastolic pressure is calculated for the corresponding diastolic or systolic pressure.

Wherein the step of continuously performing the pressure detecting by the pressure sensor comprises: spacing the blood pressure detecting device At least two pressure sensors are provided to continuously perform pressure detection, wherein the at least two pressure sensing The device respectively presses the elastic balloon of the outer circumference to squeeze different arterial positions of the human limb; the method also includes Included: when the blood pressure detecting device does not receive a press, each of the pressure sensors is synchronously acquired Measured pressure, obtaining a continuous output of each of said pressure sensors comprising at least one pulse period Pulse pressure signal; according to any two of the pressure sensors outputting a pulse pressure signal between peaks or The difference between the valleys and the distance between the two corresponding pressure sensors corresponding to the position of the artery is calculated Arterial positional blood pressure as a function of the attenuation relationship between the position of the artery and the distance between the hearts; Systolic and diastolic blood pressure at the arterial position calculated from the pressure signal obtained during the sum and/or reduction The step includes: accepting a pressing force at the blood pressure detecting device according to any one of the pressure sensors The pressure signal output during the increase and/or decrease of the pressing force obtains the corresponding artery of the pressure sensor Systolic pressure and diastolic pressure of the position; according to the attenuation relationship, the systolic pressure and the corresponding arterial position Press the pressure to get the systolic and diastolic blood pressure of the heart.

In order to solve the above problems, an embodiment of the present invention provides a blood pressure measurement method, including the following steps: The blood pressure detecting device provided on the user's limb is in the blood pressure detecting device when the external pressing force is not received At least two pressure sensors disposed at intervals continuously perform pressure detection, wherein the at least two pressures Elastic airbags are respectively sleeved on the outer circumference of the sensor, and the at least two pressure sensors respectively pass through the elastic airbags Detecting pulse pressure at different arterial locations of a human limb; the processor is based on the at least two pressure sensing The pulse pressure output from the device calculates the attenuation of the arterial position blood pressure with the distance between the artery and the heart. Relationship; the processor is calculated according to the pressure output by the pressure sensor during the process of receiving the pressing force a blood pressure value corresponding to an arterial position of the pressure sensor; the processor according to the attenuation relationship and The blood pressure value of the arterial position is obtained, and the blood pressure value of the heart is obtained.

Wherein the processor calculates the pulse pressure according to the pulse pressure output by the at least two pressure sensors The step of the relationship between the positional blood pressure of the artery and the attenuation of the distance between the artery and the heart includes: the processor is When the blood pressure detecting device does not receive the pressing force, respectively, each of the pressure sensors is synchronously acquired and detected. Pressure to obtain a continuous pulse of at least one pulse period for each of the pressure sensor outputs Pressure signal; according to any two of the pressure sensors output peak pressure or valley value of the pulse pressure signal The difference between the difference and the distance between any two pressure sensors corresponding to the position of the artery is calculated. The positional blood pressure is related to the attenuation relationship between the position of the artery and the distance between the hearts.

In order to solve the above problems, an embodiment of the present invention provides a smart wristband, including blood fixed on a wristband. a pressure detecting device, the blood pressure detecting device comprising: a pressure sensor, and a pressure sensing The elastic bladder of the outer periphery of the device, the pressure sensor extrudes the body limb by the elastic airbag sleeved by the outer circumference An arterial position; a processor electrically coupled to the pressure sensor, the processor being responsive to the pressure sensing The pressure outputted by the device calculates a blood pressure value of the human body; or the blood pressure detecting device comprises: at least two pressures a force sensor, and at least two elastic airbags respectively sleeved on the outer circumferences of the at least two pressure sensors, The at least two pressure sensors respectively press different elastic movements of the human body by the outer elastic airbag a pulse position; a processor electrically connected to the at least two pressure sensors, respectively The pressure signals of at least two pressure sensors calculate the positional blood pressure of the artery along with the position of the artery and the heart The attenuation relationship of the distance, the blood pressure value of the arterial position, and the blood pressure according to the attenuation relationship and the position of the artery The value gives the blood pressure value of the heart.

Wherein, the wristband is a rubber band, a wristband in the form of an elastic fiber cloth, a metal hand Strap or leather strap.

Wherein, the smart wristband further includes a function expanding device, and the function expanding device is fixed on the wristband The function expansion device is an hour hand watch dial, a smart watch dial, a wireless MP3, a power supply or a small Type communication device, the function expansion device and the wristband are fixed in the form of a bundle, a snap or a hinge Connection type.

In order to solve the above problem, an embodiment of the present invention provides a smart watch including a strap fixed to the watch. a blood pressure detecting device, the blood pressure detecting device comprising: a pressure sensor, and a sleeve An elastic bladder on the outer circumference of the force sensor, the pressure sensor extruding the human body through an elastic airbag that is sheathed on the outer circumference An arterial position of the limb; a processor electrically coupled to the pressure sensor, the processor being responsive to the pressure The pressure output by the force sensor calculates a blood pressure value of the human body; or the blood pressure detecting device includes: at least Two pressure sensors, and at least two bullets respectively sleeved on the outer circumference of the at least two pressure sensors The airbag, the at least two pressure sensors respectively squeeze the human limb through the elastic airbag that is sheathed around the outer circumference Different arterial locations; a processor electrically coupled to the at least two pressure sensors, the processing Calculating the positional blood pressure of the artery along with the position of the artery based on the pressure signals of the at least two pressure sensors The attenuation relationship with the distance between the heart, the blood pressure value of the arterial position, and then according to the attenuation relationship and the arterial position The blood pressure value is set to get the blood pressure value of the heart.

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 test. Measuring device and terminal, the blood pressure detecting device comprising: a pressure sensor, and a sleeve An elastic bladder around the periphery of the sensor, the pressure sensor extruding the human limb by an elastic balloon that is sheathed around the periphery An artery position; a processor electrically coupled to the pressure sensor, the processor transmitting according to the pressure The pressure output from the sensor calculates 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 can be connected The communication between the blood pressure detecting device and the terminal is now described.

Different from the prior art, the pressure sensor of the present invention detects the pressure of the arterial position through the elastic balloon, and reduces The sensitivity to measuring the positional accuracy of the artery and measuring the attitude improves the accuracy of measuring the pressure signal. This improves the accuracy of blood pressure detection.

[Description of the Drawings]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following description will be made on the embodiments. The drawings to be used are briefly introduced, and it is obvious that the drawings in the following description are only the present application. Some embodiments, for those skilled in the art, without creative efforts, Other drawings can also be obtained from these figures.

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

2 is a schematic structural diagram of a processor in the embodiment shown in FIG. 1;

Figure 3 is a waveform diagram showing the pressure sensed by the pressure sensor during the pressing process of the embodiment of Figure 1. Figure

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

Figure 5 is a waveform of the pressure sensed by the pressure sensor during the reduction of the pressing force in the embodiment of Figure 4. Schematic diagram

6 is a schematic structural diagram of a processor in Embodiment 3 of the blood pressure detecting device of the present application;

Figure 7 is a schematic structural view of a fourth embodiment of the blood pressure detecting device of the present application;

Figure 8 is a schematic structural view of Embodiment 5 of the blood pressure detecting device of the present application;

Figure 9 is a flow chart of the first embodiment of the blood pressure measuring method of the present application;

Figure 10 is a flow chart of the second embodiment of the blood pressure measuring method of the present application;

Figure 11 is a flow chart of the third embodiment of the blood pressure measuring method of the present application;

[Corrected according to Rule 91 15.05.2015]

12 is a schematic perspective structural view of a first embodiment of the smart wristband of the present application;

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

14 is a schematic structural diagram of Embodiment 1 of a communication system of the present application;

FIG. 15 is a schematic structural diagram of Embodiment 2 of a communication system according to the present application.

【detailed description】

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. In particular, The following examples are only intended to illustrate the application, but the scope of the application is not limited. The same, the following The embodiments are only some of the embodiments of the present application and not all of the embodiments, and those of ordinary skill in the art are not All other embodiments obtained under the premise of creative labor are within the scope of the present application.

Blood pressure detecting device embodiment 1:

Please refer to FIG. 1 to FIG. 3 . FIG. 1 is a schematic structural view of a first embodiment of a blood pressure detecting device according to the present application. 2 is a schematic structural diagram of a processor in the embodiment shown in FIG. 1, and FIG. 3 is a pressing process in the embodiment shown in FIG. 1. A schematic diagram of the waveform of the pressure sensed by the medium pressure sensor. Blood pressure detecting device 100 includes a pressure sensor 110. The elastic airbag 111 and the processor 120 are disposed on the outer circumference of the pressure sensor 110.

As an optimized embodiment, the blood pressure detecting device 100 may further include a fixed circuit board 130. The pressure sensor 110 and the processor 120 are respectively mounted on the circuit board 130 and electrically connected. of course, In other embodiments, the pressure sensor and the processor are not necessarily limited to being disposed on the circuit board, and other Setting mode and connecting the pressure sensor to the processor, such as directly fixed outside the blood pressure detecting device On the shell, the connection between the pressure sensor and the processor is realized by wires.

Specifically, the elastic bladder 111 is used to at least partially contact the position of the artery of the human limb. When The airbag 111 is elastically deformed when it is squeezed by the artery of the human limb, resulting in gas in its confined space. The body pressure changes, and the pressure sensor 110 indirectly measures the artery by sensing the value of the gas pressure. The pressure of the position. Preferably, the elastic airbag 111 has a convex hemispherical shape so as to be able to be attached to the wrist of the human body. The position of the artery is in good contact. Of course, the shape of the elastic balloon 111 is not limited thereto, and can be used with the human body. The wrist artery can be well contacted. Further, the elastic bladder 111 is made of a soft material such as rubber.

Since the contact area of the elastic airbag 111 and the wrist is large, for example, the contact area is 5 to 10 mm. The circumference area is preferably 8 mm, and the force of the pressure sensor 110 is only related to the pressure in the elastic airbag 111. Off, regardless of the position of the surface of the elastic balloon 111, so the accuracy of measuring the position of the artery is not Sensitive, and at the same time not sensitive to small changes in measurement posture. In other words, when blood pressure is measured, it is not The required force must act on the geometric centerline of the pressure sensor 110 as long as the pressure sensor 110 The outer elastic balloon 111 can be in contact with the position of the artery, that is, the position and angle of the force are not strict. Request. This can reduce the operational requirements for the user while ensuring measurement accuracy.

Specifically, when performing blood pressure measurement, the elastic balloon 111 and the arterial position of the human limb (ie, the arterial position) The soft tissue of the human epidermis, such as the soft tissue of the human epidermis at the location of the radial artery, is in contact with each other. Blood pressure test The device 100 sets the side of the pressure sensor 110 as the lower side when the measurer is from the blood pressure detecting device 100 The upper side applies a pressing force, and when the user's hand presses the pressure, the pressing force acts on the pressure sensor 110, and The artery position is squeezed by an elastic balloon 111 that is sheathed around the circumference. At this point the pressure sensor 110 is sensitive to the artery Position the pressure transmitted through the elastic bladder 111, wherein the pressure is specifically the reaction force and movement of the pressing force The combined force of the pulse pressure at the pulse position.

The processor 120 detects the positional pressure of the artery according to the pressure sensor 110 through the elastic balloon 111. The blood pressure value of the human body is calculated, such as the systolic blood pressure and the diastolic blood pressure of the human body. Specifically, in this embodiment The processor 120 includes a pressure acquisition module 121 and a blood pressure calculation module 122. Wherein, the pressure acquisition module 121 For synchronous acquisition, the pressure sensor detects the movement during the process of receiving the external pressing force by the blood pressure detecting device 100 The pressure at the pulse position obtains a continuous pressure signal, and the blood pressure calculation module 122 according to the pressure signal The systolic and diastolic pressures at the site of the artery are obtained.

For example, the measurer places the elastic balloon 111 in the vicinity of the artery position and presses the blood pressure detecting device 100, wherein, during the pressing process, the pressing force value changes from small to large, and then changes from large to small. During the pressing process The pressure acquisition module 121 samples the pressure detected by the pressure sensor 110 a plurality of times, by the sampled There are pressure values that make up a continuous pressure signal (as shown in Figure 3). Due to the entire process of compression, the artery The blood flow in the position has gone through the smooth flow to the blockage, and then from the block to the smooth flow, during the pressure increase and decrease In the process, the pressure is equal to the time of systolic pressure and diastolic pressure (t1, t2 during pressure, buck In the process of t3, t4), so the blood pressure value can be calculated based on the pressure signal of the pressurization or depressurization process. Or according to the two processes of pressurization and depressurization, respectively, the blood pressure values of the two groups are obtained, and the blood pressure values of the two groups are more accurate. Human blood pressure value. The blood pressure calculation module 122 obtains a pressure letter during the increase and/or decrease of the pressing force No., using the waveform feature method or the amplitude coefficient method to discriminate the body of the measurer from the pressure signal Contraction and diastolic pressure. It should be noted that the waveform feature method is to identify the pressure wave in systolic blood pressure and diastolic The waveform characteristics of the pressure are used to discriminate blood pressure. The amplitude coefficient method determines and recognizes the systolic pressure amplitude and relaxation. The relationship between the pressure amplitude and the maximum amplitude is used to discriminate blood pressure. Due to the specific acquisition of the arterial position during compression It is a prior art to set the pressure signal to obtain systolic blood pressure and diastolic blood pressure, and will not be specifically described herein.

For example, in this embodiment, the specific method for the processor to calculate the blood pressure value of the human body is: the pressure The acquisition module is further configured to acquire the pressure sensing when the blood pressure detecting device does not receive an external pressing force The pressure detected by the device obtains a continuous pulse pressure signal including at least one pulse period;

The blood pressure calculation module is specifically configured to acquire a period of a pulse pressure signal, and use the period to After the pressure signal obtained during the pressure increase and/or decrease is filtered, the filtered The larger of the pressure values corresponding to the two moments of the jitter in the waveform of the pressure signal The systolic blood pressure at the pulse position, the smaller value is the diastolic pressure of the arterial position.

The pressure acquiring module 121 can pass the sampling circuit when acquiring the pressure signal by sampling. Or the computer program is implemented by the microcomputer MCU, or the pressure acquisition module 121 does not pass The digital pressure signal obtained by the sample method is directly connected to the output end of the pressure sensor to obtain an analog pressure signal. There is no limit on how to obtain a continuous pressure signal.

Preferably, the pressure sensor in the embodiment adopts a pressure sensor with high sensitivity, such as silicon pressure. Resistive pressure sensor, silicon piezoresistive pressure sensor including silicon bridge, micro-mechanical structure, ADC Circuit, temperature sensing structure and serial interface, etc., the specific principle and working process are the technical person in the field It is well known to the staff and will not be repeated here. The pressure sensor has a small installation size, such as less than 9 x 9 mm. Alternatively, in another embodiment that requires a compact size, the pressure sensor can be smaller in size. Pressure sensor to make the overall structure of the blood pressure detecting device smaller and more portable, for example, using a film Piezoresistive pressure sensor, the installation size can be less than 6 × 6mm. In addition, according to an embodiment of the present invention It is also necessary to customize a smaller size pressure sensor.

In this embodiment, the pressure sensor detects the positional pressure of the artery through the elastic balloon, and reduces the measurement of the artery. The accuracy of the position of the artery and the sensitivity of the measured attitude improve the accuracy of measuring the pressure signal.

Blood pressure detecting device embodiment 2:

For further details, please refer to FIG. 4 and FIG. 5 , FIG. 4 is a second embodiment of the blood pressure detecting device of the present application. Schematic diagram of the structure of the processor, FIG. 5 is a diagram showing the pressure sensor in the embodiment shown in FIG. A schematic representation of the amplified pressure waveform of the output. . The second embodiment is basically the same as the structure of the first embodiment, and The difference is that the blood pressure calculation module 422 of the processor 420 specifically includes the establishing unit 4221 and the searching unit. 4222. According to a large number of studies, the pressure signal output by the pressure sensor when pressed is wave-likely enveloped. The inflection point (i.e., the point where the second derivative is equal to zero) corresponds to a representative point of systolic pressure and diastolic pressure.

Therefore, in this embodiment, the establishing unit 4221 is configured to obtain the process of increasing or decreasing the pressing force. The obtained pressure signal is separately constructed according to the waveform of the pressure signal obtained during the pressurization or depressurization process Set up the envelope, baseline and lower envelope. Specifically, the pressure acquisition module 421 acquires during the pressing process. a continuous pressure signal detected by the pressure sensor, wherein during pressing, the pressing force value is from small to Big, and then change from big to small. The establishing unit 4221 will obtain the increase or decrease in the pressing force The obtained pressure signal is amplified on the waveform (as shown in Figure 5), and the upper envelope L3 and the baseline are respectively established. L2 and lower envelope L1, wherein the peak of the periodic pressure signal obtained during pressing is connected The upper envelope L3, the valley connection is connected to the lower envelope L1.

The searching unit 4222 is configured to find the first inflection point and the second inflection point of the lower envelope and the baseline, and The first inflection point corresponds to a maximum value of the pressure signal as a systolic pressure of the artery position, and the second inflection point The maximum value of the corresponding pressure signal is used as the diastolic pressure of the arterial position. The search unit 4222 looks for the lower envelope and The first inflection point A of the baseline, the second inflection point B (the inflection point is the point where the second derivative is equal to zero), wherein When the baseline inflection point is referenced, the inflection point of the upper envelope is referred to, and then the first inflection point A and the second inflection point B are respectively pressed. The maximum value of the force signal is used as systolic and diastolic pressure.

This embodiment achieves precise pressure through the peripheral elastic bladder and the use of a sufficiently sensitive pressure sensor Signal, because the measured pressure signal has higher accuracy, it can be directly obtained by simple algorithm The value greatly reduces the amount of calculation and the operation time. Different from the traditional air pump blood pressure detecting device, this application Please use the elastic airbag to improve the accuracy of the pressure signal, without spending too much time, only a few seconds You can get accurate blood pressure values, such as a few seconds of hand pressure measurement.

Embodiment 3 of the blood pressure detecting device:

Optimized, please refer to FIG. 6, FIG. 6 is a structure of a processor in the third embodiment of the blood pressure detecting device of the present application. schematic diagram. The third embodiment is basically the same as the first embodiment or the second embodiment, and the difference is that the processor 620 A ratio calculation module 623 is also included.

The pressure acquisition module 621 is further configured to obtain when the blood pressure detecting device does not receive an external pressing force Taking the pressure detected by the pressure sensor to obtain a continuous pulse pressure including at least one pulse period Force signal. For example, the elastic balloon of the blood pressure detecting device is in contact with the vicinity of the artery position, and when not pressed, The pressure acquisition module 621 samples the pressure detected by the pressure sensor multiple times, and will sample all the pressure values. A continuous pulse pressure signal generated when not pressed is composed.

The ratio calculation module 623 is configured to find the highest pressure pulse pressure value from the pulse pressure signal And the pulse low pressure value with the lowest pressure, and calculate the proportional relationship between the pulse high pressure value and the pulse low pressure value, As. The ratio calculation module 623 can be specifically implemented by a division circuit.

The blood pressure calculation module 622 is based on the pressure obtained during the increase and/or decrease of the pressing force The force signal calculates the systolic or diastolic blood pressure at the location of the artery, and then according to the systolic and diastolic blood pressure of the human body. The proportional relationship calculates the corresponding diastolic or systolic pressure. Wherein, the blood pressure calculation module 622 is specifically obtained The manner of systolic or diastolic pressure of the pulse position is as in the above embodiment, and will not be described herein.

Blood pressure detecting device embodiment four:

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of Embodiment 4 of the blood pressure detecting device of the present application. This embodiment The blood pressure detecting device includes at least two pressure sensors 710 respectively sleeved on the at least two pressures At least two elastic airbags on the outer circumference of the force sensor 710, and a processor 720.

Specifically, the at least two pressure sensors 710 are spaced apart and correspond to the human limbs respectively. At the same artery position, the pressure sensor 710 is independent of each other. The outer circumference of each pressure sensor 710 The elastic bladder is sleeved such that each pressure sensor 710 is separately placed in the enclosed space of the elastic bladder. When the elastic bladder is subjected to an external force (pulse pressure), it is elastically deformed, resulting in a gas in its confined space. The pressure changes, and the pressure sensor 710 indirectly measures the value of the external force by sensing the value of the gas pressure.

The processor 720 calculates the arterial position based on the pressure signals of the at least two pressure sensors 710 The relationship between the blood pressure and the attenuation of the distance between the artery and the heart, the systolic pressure of the arterial position, and the diastolic pressure. The systolic and diastolic blood pressures of the heart are obtained based on the attenuation relationship and the systolic and diastolic pressures of the arterial position.

Further specifically, the processor 720 includes a pressure acquisition module 721, a blood pressure calculation module 722, and a decay The calculation module 724 and the blood pressure conversion module 725 are subtracted.

The pressure acquisition module 721 is configured to separately acquire the blood pressure detecting device when the blood pressure detecting device does not accept the pressing The pressure detected by each of the pressure sensors 710 is obtained by each of the pressure sensors 710 A continuous pulse pressure signal including at least one pulse period.

The attenuation calculation module 724 is configured to output a pulse pressure signal according to any two of the pressure sensors The difference between the peaks or between the valleys and the distance between the arterial positions of any two of the pressure sensors The attenuation relationship between the positional blood pressure of the artery and the distance between the artery and the heart is calculated.

The blood pressure calculation module 722 is configured to perform the blood pressure detecting device according to any one of the pressure sensors Receiving the pressure signal and the pressure signal output during the increase and/or decrease of the pressing force to obtain the pressure transmission The systolic pressure and diastolic pressure of the sensor corresponding to the position of the artery;

a blood pressure conversion module 725 for systolic pressure according to the attenuation relationship, the corresponding arterial position Diastolic pressure, the systolic and diastolic blood pressure of the heart.

For example, the blood pressure detecting device includes three pressure sensors respectively disposed correspondingly through the elastic airbags. Three pulse positions of inch, off and ruler. The pressure acquisition module 721 pairs the three pressure sensors 710 when not pressed The detected pressure is simultaneously sampled by the pressure value groups of the three sampled pressure sensors 710 respectively. Three consecutive pressure signals, at this time, the three pressure signals detected under the unpressed are respectively The pulse pressure signal generated when the three pulse positions of the off and the ruler are not pressed. The attenuation calculation module 724 obtains an inch, The difference between the peak values of the pulse pressure signals of the three pulse positions of the off and the ruler or the difference between the valley values, according to the difference The value and the distance between the three pulse positions of inch, inch and ruler are calculated to obtain the pulse blood pressure and the distance between the pulse position and the heart. The relationship is reduced. The blood pressure calculation module 722 is detected by a pressure signal during pressurization or depressurization of the pressing force The systolic blood pressure and the diastolic blood pressure of the corresponding pulse position are calculated. For the specific calculation method, refer to the above embodiment. blood The pressure conversion module 725 is configured to obtain the heart according to the attenuation relationship, the systolic pressure of the corresponding pulse position, and the diastolic pressure. Systolic and diastolic blood pressure.

As further optimization, the processor in this embodiment may further include the ratios described in the above embodiments. For the calculation module, please refer to the relevant text description above, which will not be described here.

Blood pressure detecting device embodiment five:

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of Embodiment 5 of the blood pressure detecting device of the present application. As the foregoing Further development of the embodiment, the blood pressure detecting device 800 may further include a connection to the processor 820. Display 840, operation keys 850, voice prompt module 860, communication module 870, I/O interface 880, and housing Body 890.

The processor 820 and the pressure sensor 810 are fixedly disposed inside the housing 890, and are elastic. The airbags respectively protrude from the lower surface of the housing 890 so that the elastic airbag can be contacted during the pressing process. The location of the artery to the human limb, such as the position of the radial artery of the wrist.

The display 840 is disposed on the upper surface of the housing 890 for displaying related data information, preferably liquid crystal or The LED screen serves as the display 840.

The operation key 850 is disposed on the side or the upper surface of the housing 890 for the blood pressure detecting device For the input of the line related operation control command, the number of the operation keys 850 may be one or more, and the setting bits The arrangement is not limited to the side or the upper surface, and the number and arrangement positions of the operation keys 850 are not limited herein.

The voice prompt module 860, such as a speaker, can issue a voice prompt for the operation process and the test result. Convenient for users to enhance the human-computer communication experience.

The communication module 870 is preferably in the form of wireless communication, and specifically may be a Bluetooth module or a wireless network. Module or NFC near field communication module, etc., of course, communication module 870 can also use wired communication, such as through USB The interface or Ethernet interface communicates with an external terminal. The communication module 870 can also be provided with a unique device Identification (ID) number, the user can set personal account by entering the form of personal information, communication mode Block 870 can send the corresponding ID number and the data information measured by the blood pressure detecting device to the remote service. On the server or mobile terminal to further analyze and store the data. Among them, the form of entering personal information The formula can also input a user name or input a user fingerprint through a fingerprint recognition device.

The I/O interface 880 is mainly used for the wired connection of the blood pressure detecting device and an external device, for example, Connected to a computer via a USB interface for data transmission, and a blood pressure detecting device through a charging interface Charging and the like are within the understanding of those skilled in the art and will not be described in detail herein.

By further optimizing the function of the blood pressure detecting device of the above embodiment, the blood pressure detecting device is Can be more perfect, and at the same time more compatible and practical. Of course, in other embodiments, the blood pressure detecting device It can also include only the display, operation keys, voice prompt module, communication module, I/O interface and housing. One or more.

Example 1 of blood pressure measurement method:

Please refer to FIG. 9. FIG. 9 is a flowchart of Embodiment 1 of the blood pressure measuring method of the present application. In this embodiment The blood pressure detecting device is the blood pressure detecting device described in the above embodiment, and will not be described herein. Blood pressure measurement The method includes the following steps:

Step S901: The blood pressure detecting device set on the limb of the user receives an external pressing force, wherein The blood pressure detecting device is provided with a pressure sensor that is provided with an elastic airbag on the outer circumference, and the pressure sensor passes The outer peripherally fitted elastic airbag squeezes the position of the artery of the human limb.

For example, the measurer at least partially touches the elastic airbag of the blood pressure detecting device with the pulse position of the wrist. To ensure that the pressure sensor can sense the pressure generated by the position of the artery through the elastic balloon, and another The hand presses the blood pressure detecting device for a few seconds, such as 4 to 10 seconds, preferably 6 seconds. Produced by the other hand pressing According to the change of pressure, from loose to tight, the blood flow of the wrist artery is from smooth to blocked, then the pressure is then tightened When loosened, the blood flow of the wrist artery is blocked from blocking to smooth, ensuring that the height and low blood pressure of the measurer can be measured. The pressure sensor squeezes the position of the artery of the human limb through the elastic airbag that is sheathed around the outer circumference, so that the artery The position exerts pressure on the elastic bladder when pressed.

Step S902: The pressure sensor continues to perform pressure detection.

The pressure sensor is sensitive to the downforce from the position of the artery during the pressing process, wherein the downforce It is the combined force of the pressure reaction and the pulse pressure.

Step S903: The blood pressure detecting device calculates the human blood according to the pressure output by the pressure sensor. Pressure value.

For example, the measurer places the elastic balloon near the position of the artery and presses the blood pressure detecting device, which In the process of pressing, the pressure value changes from small to large, and then changes from large to small. During the pressing process, blood The processor of the pressure detecting device samples the pressure of the pressure sensor by multiple times, and all the pressures are sampled. The force values form a continuous pressure signal (as shown in Figure 3). Due to the entire process of compression, arterial position blood The flow has gone from smooth to blocked, and then from blocking to smooth, during the process of increasing and decreasing pressure Experienced the time when the pressing pressure is equal to the systolic and diastolic pressures (t1, t2 during the pressurization process, during the depressurization process) T3, t4), so the blood pressure value can be calculated based on the pressure signal of the pressurization or depressurization process, or According to the two processes of pressurization and antihypertensive, the blood pressure values of the two groups are obtained respectively, and the blood pressure values of the two groups are more accurate to obtain human blood Pressure value.

The processor acquires a pressure signal during the increase and/or decrease of the pressing force, using a waveform feature method or The amplitude coefficient method discriminates the systolic blood pressure and the diastolic blood pressure of the measured human body from the pressure signal. This implementation In an example, the specific method for the processor to determine the blood pressure value according to the pressure signal is: the processor acquires the press The pressure signal obtained during the increase or decrease of pressure is obtained according to the process of pressurizing or depressurizing The waveform of the pressure signal is established to establish an envelope, a baseline and a lower envelope, respectively, wherein the pressing process The peak connection of the periodic pressure signal obtained in the middle is obtained by the upper envelope, and the valley connection is obtained by the bottom envelope; The processor finds a first inflection point and a second inflection point of the lower envelope and the baseline, and the first inflection point The maximum value of the pressure signal is taken as the systolic pressure of the artery position, and the second inflection point corresponds to the pressure signal The maximum value is the diastolic pressure of the arterial position. The processor then based on the ratio of blood pressure between the heart and the location of the artery, The blood pressure value measured above is converted into the high and low blood pressure value of the heart. Due to blood pressure between the wrist and the heart The conversion is common knowledge in the art, and therefore will not be specifically described, and in the following embodiments, After the high and low blood values measured by the arterial position, the steps of converting the high and low blood pressure values at the heart are performed by default.

It should be noted that when measuring blood pressure, in order to make the measured pressure signal more accurate, the processor The sampling period is set to milliseconds (ms), for example, 1 to 10 ms, preferably 2 ms, the time of holding the pressure For more than 4 seconds, for example, 6s, then the data of each pressure value during the pressing process has 6000/2=3000 points, during which at least 3-6 complete heartbeat cycles, and each heartbeat cycle to There are 500 samples of data, which greatly improves the accuracy of each heartbeat signal, so that only 3 to 6 are utilized. The heartbeat signal can accurately calculate the actual heartbeat cycle or blood pressure. It can be seen that the measurement consumption of the application 6s It is several hundred times shorter than the traditional method and is reduced by several times.

This embodiment achieves precise pressure through the peripheral elastic bladder and the use of a sufficiently sensitive pressure sensor Signal, because the measured pressure signal has higher accuracy, it can be directly obtained by simple algorithm The value greatly reduces the amount of calculation and the operation time. Different from the traditional air pump blood pressure detecting device, this application Please use the elastic airbag to improve the accuracy of the pressure signal, without spending too much time, only a few seconds You can get accurate blood pressure values, such as a few seconds of hand pressure measurement. And can Directly using the hand-held measurement, no need to set the airbag and air pump for inflation, greatly reducing the volume And weight, making the detection device lighter. Further, since the blood pressure detecting device of the present application is light, Set to wrist-worn, it can detect the pulse and blood pressure of the human body in real time.

In addition, it is further superior to the existing air pump type sphygmomanometer, which needs to be slowly deflated during the blood pressure reduction process to measure blood pressure. Method, due to external pressure increase (pressurization) and reduction (depressurization), the pressing force is equal to the contraction When pressure or diastolic pressure is applied, and the present application does not require air pumping and air pressure, no noise is generated to affect blood pressure measurement. Therefore, the application can select one of the processes of pressurization or depressurization to measure blood pressure, or can simultaneously select the pressurization and During the decompression process, blood pressure values were measured on both sides, and a more accurate blood pressure value was obtained by the average value.

Embodiment 2 of blood pressure measurement method:

Please refer to FIG. 10. FIG. 10 is a flowchart of Embodiment 2 of the blood pressure measuring method of the present application. The embodiment The blood pressure detecting device is specifically the blood pressure detecting device described in the above embodiments, and can be used for measuring human body parameters. Such as pulse, 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 S1001: acquiring the pressure sensing when the blood pressure detecting device does not receive an external pressing force The pressure detected by the device obtains a continuous pulse pressure signal including at least one pulse period, wherein The blood pressure detecting device is provided with a pressure sensor that is provided with an elastic airbag on the outer circumference, and the pressure sensor is connected The elastic balloon that is placed around the periphery detects the position of the artery of the human limb.

Since the pressure value detected by the pressure sensor is normal pulse when the external pressing force is not accepted The pressure value is the pulse pressure signal.

Step S1002: Finding the highest pulse pressure value and the lowest pressure from the pulse pressure signal The pulse low voltage value, and calculate the proportional relationship between the pulse high voltage value and the pulse low pressure value, as a human body The proportional relationship between contraction and diastolic pressure.

The processor obtains the peak and valley values of the pulse pressure signal, and calculates the ratio between the peak and the valley as The proportional relationship between the pulse high and low pressure values, and then the proportional relationship between the systolic blood pressure and the diastolic blood pressure.

Step S1003: the blood pressure detecting device receives an external pressing force, wherein the pressure sensor passes The outer peripherally fitted elastic airbag squeezes the position of the artery of the human limb.

Step S1004: The pressure sensor continues to perform pressure detection.

Step S1005: The blood pressure detecting device acquires during the process of accepting the external pressing force by the blood pressure detecting device The pressure sensor detects the pressure at the location of the artery and obtains a continuous pressure signal.

Step S1006: The obtained by the blood pressure detecting device in the process of increasing and/or decreasing the pressing force The pressure signal calculates the systolic or diastolic pressure at the location of the artery. Specifically, the processing of the blood pressure detecting device The manner in which the blood pressure value is obtained based on the pressure signal is as described in the above embodiment, and will not be described here.

Step S1007: The blood pressure detecting device calculates a pair according to the proportional relationship between the human systolic blood pressure and the diastolic blood pressure Should be diastolic or systolic.

For example, the processor of the blood pressure detecting device obtains systolic pressure according to the pressure signal, according to the systolic pressure and the shudder The proportional relationship of the tension is diastolic. Or the processor gets diastolic pressure, according to systolic and diastolic blood pressure The proportional relationship is systolic.

This embodiment adopts an innovative method of calculating between systolic and diastolic pressures when not pressed. Proportional relationship, through which one blood pressure value and proportional relationship can obtain another blood pressure value, reducing the acquisition The computational complexity of the two blood pressure values.

Embodiment 3 of blood pressure measurement method:

Please refer to FIG. 11. FIG. 11 is a flowchart of Embodiment 3 of the blood pressure measuring method of the present application. In this embodiment The blood pressure detecting device as described in the above embodiment is not described herein. Blood pressure test The method is basically the same as the steps of the first embodiment and the second embodiment, and the difference is that the method further includes the following steps. Step:

Step S1101: When the blood pressure detecting device set on the limb of the user does not receive the external pressing force, At least two pressure sensors disposed at intervals in the blood pressure detecting device continuously perform pressure detection, wherein The outer circumferences of the at least two pressure sensors are respectively provided with elastic airbags, and the at least two pressure sensors The pulse pressure of different arterial positions of the human limb is detected by an elastic balloon, respectively.

Step S1102: The blood pressure detecting device outputs a pulse pressure gauge according to the at least two pressure sensors. The attenuation relationship of the arterial position blood pressure with the distance between the artery position and the heart is calculated.

Step S1103: The blood pressure detecting device outputs according to the pressure sensor during the process of receiving the pressing force The pressure calculation yields the systolic and diastolic pressures of the pressure sensor corresponding to the arterial position.

The processor of the blood pressure detecting device calculates the pressure of the pressure sensor output during the process of receiving the pressing force The specific method of the blood pressure value is as described in the above embodiment, and will not be repeatedly described herein.

Step S1104: The blood pressure detecting device according to the attenuation relationship and the systolic pressure and the systolic pressure of the artery position Press the pressure to get the systolic and diastolic blood pressure of the heart.

Different from the prior art, after obtaining the arterial position blood pressure, the fixed preset value is used to convert to the blood pressure of the heart. Value, this embodiment dynamically calculates the motion by acquiring the pulse pressure signal when the press is not accepted. The pulse position is the attenuation relationship of blood pressure at the heart, which can flexibly determine the position of each artery and the blood pressure of the heart. The attenuation relationship makes the measurement results more accurate.

Pressure sensor assembly embodiment:

The application also provides a pressure sensor assembly including a pressure sensor And an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensor being sleeved through the outer circumference The elastic balloon is placed at the arterial position of the human limb. The specific first pressure sensor and the elastic airbag correspond to The pressure sensor and the elastic bladder in the embodiment.

Optimizedly, the pressure sensor assembly may further include at least two pressure sensors as described above, and The outer peripheral sleeve is provided with an elastic airbag. More precisely, the pressure sensor of the embodiment can also set a pressure back to back. Force sensor. Optionally, the pressure sensor on the backing may also be provided with the bullet described in the above embodiment. Sexual balloon.

It should be noted that the pressure sensor assembly is not necessarily only used for setting the artery position of the human limb. It can also be used to set up other parts that need to measure the tiny pressure information generated by itself, in order to pressurize, The minute pressure information generated by the measured portion is detected by the elastic airbag.

Smart wristband embodiment 1:

Referring to FIG. 12, FIG. 12 is a schematic perspective structural view of the first embodiment of the smart wristband of the present application. The smart wristband includes a wristband 121 and a blood pressure detecting device 122, wherein the blood pressure detecting device 122 is In the blood pressure detecting device of the embodiment, the blood pressure detecting device 122 is fixed to the wristband 121, and the blood pressure is The elastic airbag 1221 of the detecting device 122 protrudes from the inner side of the wristband 121. In this embodiment, the wristband 121 is The rubberized belt loop, the wrist strap 121 and the blood pressure detecting device 122 can be fixed in the form of a bundle or a card. Fit or hinged.

Further, the smart wristband further includes a function expansion device 123, and the function expansion device 123 can be timely One of a needle watch dial, a smart watch dial, a wireless MP3, a backup power source, and a small communication device or Several, in addition to the use of the smart wristband can be used to detect the body's pulse and blood pressure parameters, but also a variety of Other functions.

A corresponding card slot or fixed for other extended peripherals such as the receiving function expansion device 123 is reserved on the wristband. The organization, in order to facilitate the user to personalize the installed extended peripherals as needed, to achieve the corresponding additional functions. More specifically, the card slot or the fixing mechanism may further be provided with electrodes for communication and for power supply, respectively. Terminals, these electrode terminals are connected to a pressure sensor, a processor, etc. in the blood pressure detecting device 122, and Extended peripherals (including blood pressure detecting devices) are respectively provided with electrode terminals for communication or power supply at respective positions, Extend the peripheral electrode terminals and wrists when attaching the expansion peripheral to the card slot or retention mechanism on the wrist strap 1. The electrode terminals on the strip 121 are electrically connected correspondingly to realize communication between the extended peripheral and the smart wristband. And use the battery in the extended peripheral to power the smart wristband or expand with the battery in the smart wristband Peripheral power supply. The end or connection of the wristband 121 may be provided in the form of a USB or other connection terminal. To facilitate the charging of extended peripherals (including blood pressure detection devices) or to implement extended peripherals (including the wristband 121) Blood pressure detecting device) physical connection with other devices.

The present application also provides another embodiment of a smart wristband including a processor and the above embodiment The pressure sensor assembly, wherein a processor is configured to acquire a pressure sensor in the pressure sensor assembly The detected pressure or the pressure detected by the pressure sensor is analyzed. Optionally, processing The device can directly display the pressure generated by the measured part or further process the pressure generated by the measured part. For example, based on the self pressure signal, information such as the vibration frequency of the measured portion and the change in the pressure of the self is obtained.

Smart wristband embodiment II:

Please refer to FIG. 13. FIG. 13 is a schematic perspective structural view of the second embodiment of the smart wristband of the present application. This implementation The example is basically the same as the structure of the first embodiment, except that the wristband 131 is in the form of an elastic fiber tape. The wristband, the blood pressure detecting device 132 is fixed to the wristband 131.

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

In addition, in another embodiment, the wristband of the smart wristband of the present application can be set to be wirelessly charged, and The wrist strap is electrically connected to the pulse detecting device. If there is a coil inside the wristband, it is electromagnetically induced and externally powered. Now wirelessly charging, the radio can be transmitted to the pulse detection device or processor.

Smart watch embodiment:

The invention also discloses a smart watch comprising a dial, a watch strap and a time display device The time display device is fixed on the dial, and the dial is fixed on the watchband, The smart watch further includes the blood pressure detecting device described in the above embodiment, and the smart watch is provided with a pulse image The function of the analysis, the structure and working principle of the blood pressure detecting device, please refer to the above regarding the blood pressure detecting device. The example is not repeated here.

Communication system embodiment 1:

Referring to FIG. 14, FIG. 14 is a schematic structural diagram of Embodiment 1 of a communication system according to the present application. The communication system The blood pressure detecting device 1410 and the terminal 1420 described in the above embodiments are included, and the blood pressure detecting device 1410 The first communication module 1411 is included, and the second communication module 1421 is included in the terminal. Wherein, the first communication module The wired communication or wireless communication between the 1411 and the second communication module 1421 can be related to the blood pressure detecting device Information is sent to the terminal for in-depth analysis and long-term preservation of the user's pulse data.

Specifically, the first communication module 1411 is configured to use the instructions of the processor in the blood pressure detecting device 1410. The second communication module 1421 in the terminal 1420 performs communication to implement the blood pressure detecting device 1410 and the terminal Information interaction between 1420. The second communication module 1421 is configured to use the first communication according to the instruction of the terminal 1420. The letter module 1411 communicates. The first communication module 1411 and the second communication module 1421 may specifically It is a Bluetooth, infrared, wifi, or wired communication module, which is not limited herein. Specifically, the first communication module The 1411 can be directly fixed inside or on the surface of the blood pressure detecting device 1410, or the first communication mode The block 1411 is detachably disposed on the blood pressure detecting device 1410, for example, the first communication module 1411 is An over-insertion interface such as a USB interface is provided on the blood pressure detecting device 1410. In this embodiment, the first pass The letter module 1411 is a communication circuit of the blood pressure detecting device of the above embodiment.

For example, the blood pressure detecting device 1410 and the terminal 1420 pass through the first communication module 1411 and the second communication. Module 1421 implements the connection. The blood pressure detecting device 1410 is provided with a unique identification number, which is measured by the measurer Measurements are made with the blood pressure detecting device 1410 to obtain measurement results such as a pulse pressure curve, an average heart rate, High and low blood pressure (systolic and diastolic), human parameters such as pulse, and measurement time, tester's name, The processor of the blood pressure detecting device 1410 actively or upon receiving the input of the measurer to send a command, according to And a communication protocol between the first and second communication modules, packaging and controlling the measurement result and the identification number The first communication module 1411 transmits the data packet to the second communication module 1421 of the terminal 1420.

The second communication module 1421 of the terminal 1420 parses the data packet to obtain a measurement result and send The identification number of the wrist device that sent the measurement. The terminal 1420 identifies the 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 storing the measurement result in the file; if it is determined that the identification number has been established in the local database The file is stored directly in the file of the identification number.

Further, the terminal 1420 can also be used to further analyze data, identify pulse data, and measure the measurer. The physical condition is evaluated and the corresponding recommendations are given. Specifically, the terminal 1420 is based on the pulse of the measurer, Blood pressure data, pulse data through local stored pathological feature data, or through the Internet to carry out related diseases Feature search, determine the physical condition of the measurer, and search for relevant treatment options, or diet Suggest. Further, the terminal 1420 is pre-configured with a pulse, a blood pressure data reference value, and a pulse reference data. When it is judged that the pulse, blood pressure or pulse data of the measurer exceeds the reference value, the request is sent to the preset third party. The help signal, for example, automatically calls the helper to the relative of the measurer or the hospital.

To better understand the application of the communication system of the present application, a specific example is given. The measurer will install the blood pressure test Place the wristband on the wristband and lift the pressure sensor to the pulse position. Due to the blood The pressure detecting device is a wristband type. After the wrist of the measuring person is worn, it can move freely without causing measurement to the measurer. Any inconvenience. The measurer can select whether to connect with the terminal through the relevant button on the blood pressure detecting device. And choose which terminal to connect to the IPHONE phone. When the measurer chooses to connect, the selected one has The communication function of the terminal that installs the corresponding software, such as Bluetooth, wifi, etc., is connected with the blood pressure detecting device. Pick up. After the connection is successful, the terminal forms a communication system with the blood pressure detecting device worn on the wrist. In need of measurement When the measurer only needs to hold the wrist device with the other hand for a few seconds, the blood pressure detecting device can measure the test. The pulse pressure data, average heart rate, blood pressure and other data of the measurer. The blood pressure detecting device will automatically measure the measured The data is sent to the terminal, and the terminal saves the data and makes the reality to the measurer according to the pulse pressure data. Current pulse curve, average heart rate, blood pressure value, pulse information, etc., and based on the above data Diagnose and search for treatment plans and display them on the screen. The measurer can clear the current body through the terminal Situation, and the data can be sent to other terminals through the terminal, such as computers and tablets held by doctors. Etc., so that the doctor can know the physical condition of the measurer in time.

In this embodiment, the blood pressure detecting device and the terminal form a small communication system, and the human body parameters are realized. Transmission, through the storage of human body parameters by the terminal, it is convenient to track and measure the historical measurement data of the measurer Real-time monitoring of the physical condition of the measurer. Moreover, relying on the terminal's strong processing ability, it can be used for human parameters. More comprehensive analysis and provide diagnostic and therapeutic solutions to measurers to achieve measurement and diagnosis of human parameters Broken intelligent integration.

Embodiment 2 of the communication system:

Referring to FIG. 15, FIG. 15 is a schematic structural diagram of Embodiment 2 of a communication system according to the present application. The communication system A blood pressure detecting device 1510, a terminal 1520, and a cloud server 1530, wherein the blood pressure detecting device is included The communication mode between the 1510 and the terminal 1520 is the same as that of the previous embodiment, and details are not described herein. In this embodiment, The terminal 1520 further includes a third communication module 1522, configured to connect with the cloud server 1530, for example, Ethernet connection. Different blood pressure detecting devices 1510 enter the Internet through the terminal 1520, through interconnection The cloud server software of the web server, and the terminal 1520 and the cloud server 1530 form a huge real-time cloud service. The system is implemented to provide a continuous, long-term, tracking form of cloud services to the detection device. Real In the embodiment, considering the processing speed of the terminal and the network transmission rate, the terminal 1520 is set to be only capable of with blood pressure. The detecting device 1510 is connected, and different blood pressure detecting devices 1510 pass through different terminals 1520 and cloud services. The server 1530 constitutes a cloud service system. However, in other embodiments, different blood pressure detecting devices can be identical A terminal is connected and constitutes a cloud service system through the same terminal and server.

Through the above scheme, the present application obtains through the peripheral elastic airbag and adopts a sufficiently sensitive pressure sensor. Accurate pressure signal, because the measured pressure signal is more accurate, it can be directly passed The algorithm obtains blood pressure values, which greatly reduces the amount of calculation and operation time. Different from traditional air pump blood pressure test Measuring device, the application improves the accuracy of the pressure signal by using the elastic airbag, and does not need to consume too much time In just a few seconds, you can get accurate blood pressure values, such as measuring the blood pressure by pressing a few seconds. the amount. Moreover, it can be directly measured by hand, without the need to set the airbag and air pump for inflation, large The volume and weight are greatly reduced, making the detection device lighter. Further, due to the blood pressure detection of the present application The device is light and can be set as a wrist-worn type, which can detect the pulse and blood pressure of the human body in real time. End or server connection to form an intelligent monitoring system to achieve measurement, tracking and diagnosis of human parameters Intelligent integration.

The above description is only one embodiment of the present application, and thus does not limit the scope of protection of the present application. Is equivalent to the equivalent device or equivalent process made by the specification and the contents of the drawings, or directly or between The use of other related technical fields is equally included in the scope of patent protection of this application.

Claims

A blood pressure detecting device, comprising:

a pressure sensor, and an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensing              The device squeezes the position of the artery of the human limb through the elastic airbag that is sheathed outside;

a processor electrically connected to the pressure sensor,

The processor calculates a blood pressure value of the human body according to the pressure output by the pressure sensor.
The blood pressure detecting device according to claim 1, wherein said processor comprises pressure              Force acquisition module and blood pressure calculation module,

The pressure acquisition module is configured to acquire the external pressure during the blood pressure detecting device              The pressure sensor detects the pressure of the artery position and obtains a continuous pressure signal;

The blood pressure calculation module is configured to calculate a systolic blood pressure and an astigmatism of the artery position according to the pressure signal              Pressure.
The blood pressure detecting device according to claim 2, wherein said blood pressure calculating module Specifically for calculating according to the pressure signal obtained during the pressing force increase and/or reduction process Systolic and diastolic blood pressure to the location of the artery.
The blood pressure detecting device according to any one of claims 2 to 3, wherein the blood is              The pressure calculation module includes a setup unit and a search unit,

The establishing unit is configured to increase or decrease the pressure obtained according to the pressing force              Signals, respectively establishing an envelope, a baseline, and a lower envelope;

The searching unit is configured to find the first inflection point and the second inflection point of the lower envelope and the baseline, and              The first inflection point corresponds to a maximum value of the pressure signal as a systolic pressure of the artery position, and the second inflection point              The maximum value of the corresponding pressure signal is used as the diastolic pressure of the arterial position.
The blood pressure detecting device according to any one of claims 2 to 3, characterized in that

The pressure acquisition module is further configured to acquire when the blood pressure detecting device does not receive an external pressing force              The pressure detected by the pressure sensor obtains a continuous pulse pressure including at least one pulse period                                        signal;

The blood pressure calculation module is specifically configured to acquire a period of a pulse pressure signal, and use the period to              After the pressure signal obtained during the pressure increase and/or decrease is filtered, the filtered              The larger of the pressure values corresponding to the two moments of the jitter in the waveform of the pressure signal              The systolic blood pressure at the pulse position, the smaller value is the diastolic pressure of the arterial position.
A blood pressure detecting device according to any one of claims 2 to 5, wherein said blood pressure detecting device              The processor also includes a proportional calculation module;

The pressure acquisition module is further configured to acquire when the blood pressure detecting device does not receive an external pressing force              The pressure detected by the pressure sensor obtains a continuous pulse pressure including at least one pulse period              signal;

The ratio calculation module is configured to find the highest pressure pulse pressure value from the pulse pressure signal              And the pulse low pressure value with the lowest pressure, and calculate the proportional relationship between the pulse high pressure value and the pulse low pressure value,              As a proportional relationship between systolic blood pressure and diastolic blood pressure;

The blood pressure calculation module is specifically configured to be obtained according to the process of increasing and/or decreasing the pressing force              The pressure signal obtained calculates the systolic or diastolic pressure of the arterial position, and then according to the contraction of the human body              The proportional relationship between pressure and diastolic pressure is calculated for the corresponding diastolic or systolic pressure.
A blood pressure detecting device according to any one of claims 2 to 6, wherein the specific package              Include at least two pressure sensors disposed at intervals, and respectively disposed on the at least two pressure sensors              At least two elastic airbags of the outer circumference, the elasticity of the at least two pressure sensors respectively through the outer circumference              The balloon squeezes different arterial positions of the human limb;

The processor further includes an attenuation calculation module and a blood pressure conversion module;

The pressure acquiring module is specifically configured to synchronize when the blood pressure detecting device does not accept pressing              Obtaining the pressure detected by each of the pressure sensors to obtain a continuous output of each of the pressure sensors              a pulse pressure signal comprising at least one pulse period;

The attenuation calculation module is configured to output a pulse pressure signal according to any two of the pressure sensors              The difference between the peaks or between the valleys and the distance between the arterial positions of any two of the pressure sensors                                        The attenuation relationship between the positional blood pressure of the artery and the distance between the artery and the heart is calculated.

The blood pressure calculation module is specifically configured to detect the blood pressure according to any one of the pressure sensors              The device receives the pressing force and the pressure signal output during the increase and/or decrease of the pressing force to obtain the pressure              The force sensor corresponds to the systolic and diastolic pressures of the arterial position;

The blood pressure conversion module is configured to perform systolic pressure according to the attenuation relationship, the corresponding artery position              Diastolic pressure, the systolic and diastolic blood pressure of the heart.
The blood pressure detecting device according to any one of claims 1 to 7, wherein the bomb The outer circumference of the airbag is convexly hemispherical, and the elastic airbag is made of rubber.
The blood pressure detecting device according to any one of claims 1 to 8, wherein the pressure is The force sensor is a silicon piezoresistive sensor or a thin film piezoresistive sensor.
The blood pressure detecting device according to any one of claims 1 to 9, wherein said blood pressure detecting device              The blood pressure detecting device further includes a display, an operation key, a voice prompt module, a communication module, and an I/O interface.              At least one of them,

The display is electrically connected to the processor for displaying related information of the blood pressure detecting device;

The operation key is electrically connected to the processor for inputting a control command;

The voice prompting module is electrically connected to the processor for giving operation of the blood pressure detecting device              Voice prompts for processes and test results;

The communication module is electrically connected to the processor for inputting personal information of the user and transmitting the              The detection information of the user realizes a communication connection between the blood pressure detecting device and the external mobile terminal;

The I/O interface is electrically coupled to the processor for causing the blood pressure detecting device to be external to the              The mobile terminal is wired or charging the blood pressure detecting device.
The blood pressure detecting device according to claim 10, wherein said communication module is Bluetooth module, wireless network module or NFC near field communication module.
A blood pressure detecting device, comprising:

At least two pressure sensors disposed at intervals, and respectively disposed on the at least two pressure sensing              At least two elastic airbags on the outer circumference of the device, the at least two pressure sensors are respectively detected by an elastic airbag                                        Different arterial locations of human limbs;

a processor electrically connected to the at least two pressure sensors,

The processor calculates the motion according to a pulse pressure output by the at least two pressure sensors              Pulse position blood pressure as a function of the attenuation relationship between the position of the artery and the distance between the hearts, according to the pressure sensor is accepted              Calculating the blood pressure value of the pressure sensor corresponding to the position of the artery according to the pressure output during the pressure process, and then              The blood pressure value of the heart is obtained based on the attenuation relationship and the blood pressure value of the arterial position.
A blood pressure detecting device according to claim 12, wherein said processor comprises              a pressure acquisition module, an attenuation calculation module, a blood pressure calculation module, and a blood pressure conversion module;

The pressure acquiring module is configured to obtain synchronization when the blood pressure detecting device does not receive the pressing force              Taking the pressure detected by each of the pressure sensors to obtain a continuous output of each of the pressure sensors              a pulse pressure signal including at least one pulse period;

The attenuation calculation module is configured to output a pulse pressure signal according to any two of the pressure sensors              The difference between the peaks or between the valleys and the distance between the arterial positions of any two of the pressure sensors              The attenuation relationship between the positional blood pressure of the artery and the distance between the artery and the heart is calculated.

The blood pressure calculation module is configured to be in the blood pressure detecting device according to any one of the pressure sensors              Receiving the pressure signal output during the pressing process to obtain the systolic pressure of the pressure sensor corresponding to the position of the artery              And diastolic blood pressure;

The blood pressure conversion module is configured to perform systolic blood pressure and relaxation of the arterial position according to the attenuation relationship              Press to get the systolic and diastolic blood pressure of the heart.
A pressure sensor assembly, wherein the pressure sensor assembly includes pressure transmission a sensor and an elastic airbag disposed on an outer circumference of the pressure sensor, wherein the pressure sensor passes through a peripheral sleeve The elastic balloon is arranged at the position of the artery of the human limb.
The pressure sensor assembly of claim 14 wherein said pressure sensing The device is a silicon piezoresistive sensor or a thin film piezoresistive sensor.
A pressure sensor assembly according to claim 13 or 14, wherein said bomb The outer circumference of the airbag is convexly hemispherical, and the elastic airbag is made of rubber.
A smart wristband, characterized in that the smart wristband comprises a pressure sensor assembly and a processor that acquires pressure information of the pressure sensor assembly, the pressure sensor assembly The utility model comprises a pressure sensor and an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensor The position of the artery of the human limb is squeezed by the elastic airbag that is sheathed around the circumference.
A blood pressure measuring method, comprising the steps of:

The blood pressure detecting device set on the user's limb receives an external pressing force, wherein the blood pressure detecting              The device is provided with a pressure sensor with an elastic airbag on the outer circumference, and the pressure sensor is sleeved through the outer circumference.              The elastic balloon compresses the position of the artery of the human limb;

The pressure sensor continues to perform pressure detection;

The processor calculates a blood pressure value of the human body according to the pressure output by the pressure sensor.
The method of claim 18 wherein said controlling is based on said pressure transmission              The steps of calculating the pressure of the sensor output to obtain the systolic and diastolic blood pressure of the human body include:

Acquiring the pressure sensor to detect movement when the blood pressure detecting device receives an external pressing force              The pressure at the pulse position to obtain a continuous pressure signal;

The systolic and diastolic pressures of the arterial position are calculated from the pressure signals.
The method of claim 19 wherein said pressure signal is The steps of calculating the systolic and diastolic blood pressure at the site of the artery include:

Calculated according to the pressure signal obtained during the increase and/or decrease of the pressing force Systolic and diastolic blood pressure at the site of the artery.
The method according to claim 20, wherein said increasing in said pressing pressure              Systolic and diastolic blood pressure at the arterial position calculated from the pressure signal obtained during the sum and/or reduction              The steps include:

Establishing respectively according to the pressure signal obtained during the increase or decrease of the pressing force              Envelope, baseline and lower envelope;

Finding a first inflection point and a second inflection point of the lower envelope and the baseline, corresponding to the first inflection point              The maximum value of the pressure signal is the systolic pressure of the artery position, and the second inflection point corresponds to the most pressure signal                                        Large values serve as diastolic blood pressure at the site of the artery.
The method according to claim 20 or 21, further comprising:

Acquiring the detected by the pressure sensor when the blood pressure detecting device does not receive an external pressing force              Pressure to obtain a continuous pulse pressure signal including at least one pulse cycle;

Finding the highest pressure pulse pressure and the lowest pressure pulse pressure from the pulse pressure signal              Value, and calculate the proportional relationship between the pulse high voltage value and the pulse low pressure value, as human systolic blood pressure and diastolic              Proportional relationship of pressure;

Calculating the pressure signal obtained according to the pressure increase and/or decrease process              The steps of obtaining systolic and diastolic blood pressure at the site of the artery include:

Calculating the artery by the pressure signal obtained during the increase and/or decrease of the pressing force              Systolic or diastolic pressure at the site;

The corresponding diastolic blood pressure or systolic blood pressure is calculated according to the proportional relationship between the human systolic blood pressure and the diastolic blood pressure.
The method according to claim 20 or 21, wherein the method further comprises:

Acquiring the detected by the pressure sensor when the blood pressure detecting device does not receive an external pressing force              Pressure to obtain a continuous pulse pressure signal including at least one pulse cycle;

Calculating the pressure signal obtained according to the pressure increase and/or decrease process              The steps of obtaining systolic and diastolic blood pressure at the site of the artery include:

Obtaining a period of the pulse pressure signal, using the period of time to increase and/or decrease at the pressing force              After the pressure signal obtained in the process is filtered, the waveform of the filtered pressure signal appears to be shaken              The larger of the pressure values corresponding to the two moments of the movement as the systolic blood pressure of the arterial position, the smaller value              The diastolic pressure for the location of the artery.
Method according to any one of claims 20 to 23, wherein said pressure transmission              The sensor continues to perform pressure detection steps including:

At least two pressure sensors disposed in the blood pressure detecting device are continuously subjected to pressure detection,              Wherein the at least two pressure sensors respectively press the elastic body of the outer circumference to press the body limb              Different arterial locations;

The method further includes:

When the blood pressure detecting device does not accept the pressing, each of the pressure sensors is synchronously acquired.              Measured pressure, obtaining a continuous output of each of said pressure sensors comprising at least one pulse period              Pulse pressure signal;

Between the peaks or valleys of the pulse pressure signal output according to any two of the pressure sensors              The difference between the difference and the distance between the two pressure sensors corresponding to the position of the artery is calculated to obtain the blood of the artery.              The relationship between the pressure and the attenuation of the distance between the artery and the heart;

Calculating the pressure signal obtained according to the pressure increase and/or decrease process              The steps of obtaining systolic and diastolic blood pressure at the site of the artery include:

Receiving a pressing force and pressing the blood pressure detecting device according to any one of the pressure sensors              The pressure signal output during the increase and/or decrease of the force is obtained by the pressure sensor corresponding to the position of the artery              Contraction and diastolic pressure;

According to the attenuation relationship, the systolic pressure and the diastolic pressure of the corresponding arterial position, the heart is harvested              Contraction and diastolic pressure.
A blood pressure measuring method, comprising the steps of:

The blood pressure detecting device set on the user's limb detects the blood pressure when the external pressing force is not received              At least two pressure sensors disposed within the device are continuously subjected to pressure detection, wherein the at least two              The outer circumferences of the pressure sensors are respectively provided with elastic airbags, and the at least two pressure sensors respectively pass the elastic airbags              The airbag detects the pulse pressure of different arterial positions of the human limb;

The processor calculates the artery position according to pulse pressure output by the at least two pressure sensors              The relationship between the blood pressure and the attenuation of the distance between the artery and the heart;

The processor is calculated according to the pressure output by the pressure sensor during the process of receiving the pressing force              The pressure sensor corresponds to a blood pressure value of an artery position;

The processor obtains blood pressure of the heart according to the attenuation relationship and the blood pressure value of the artery position              value.
The method of claim 25 wherein said processor is based on said at least                                        The pulse pressure output from the two pressure sensors is calculated to obtain the arterial positional blood pressure with the arterial position and heart              The steps of the attenuation relationship between the distances include:

The processor synchronously acquires each of the said when the blood pressure detecting device does not receive the pressing force              The pressure detected by the pressure sensor obtains at least one continuous of each of the pressure sensor outputs              Pulse pressure signal of one pulse period;

Between the peaks or valleys of the pulse pressure signal output according to any two of the pressure sensors              The difference between the difference and the distance between the two pressure sensors corresponding to the position of the artery is calculated to obtain the blood of the artery.              The pressure is related to the attenuation relationship between the position of the artery and the distance between the hearts.
A smart wristband, comprising: a blood pressure detecting device fixed on a wristband,              The blood pressure detecting device includes:

a pressure sensor, and an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensing              The device squeezes the position of the artery of the human limb through the elastic airbag that is sheathed outside;

a processor electrically connected to the pressure sensor,

The processor calculates a blood pressure value of the human body according to the pressure output by the pressure sensor;

Or the blood pressure detecting device comprises:

At least two pressure sensors, and respectively disposed on the outer circumference of the at least two pressure sensors              There are two elastic airbags, and the at least two pressure sensors are respectively squeezed by the elastic airbags which are sleeved around the outer circumference              Different arterial locations of human limbs;

a processor electrically connected to the at least two pressure sensors,

The processor calculates the blood of the artery according to the pressure signals of the at least two pressure sensors              The pressure is related to the attenuation relationship between the position of the artery and the distance between the hearts, the blood pressure value of the position of the artery, and then according to the attenuation              The blood pressure values of the relationship and the location of the artery get the blood pressure value of the heart.
The smart wristband according to claim 26, wherein the wristband is made of rubber Banded, elastic wristband, metal bracelet or leather strap.
The smart wristband of claim 28, wherein the smart wristband further comprises a function expansion device, the function expansion device is fixed on the wristband, and the function expansion device is One or more of a needle watch dial, a smart watch dial, a wireless MP3, a power supply, and a small communication device. The fixed form of the function expanding device and the wristband is bundled, snapped or hinged.
A smart watch comprising a dial, a watch band and a time display device, the time display device              Fixed on the dial, the dial is fixed on the watchband, and is characterized in that it is fixed on the              a blood pressure detecting device on a wristband of a watch, the blood pressure detecting device comprising:

a pressure sensor, and an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensing              The device squeezes the position of the artery of the human limb through the elastic airbag that is sheathed outside;

a processor electrically connected to the pressure sensor,

The processor calculates a blood pressure value of the human body according to the pressure output by the pressure sensor;

Or the blood pressure detecting device comprises:

At least two pressure sensors, and respectively disposed on the outer circumference of the at least two pressure sensors              There are two elastic airbags, and the at least two pressure sensors are respectively squeezed by the elastic airbags which are sleeved around the outer circumference              Different arterial locations of human limbs;

a processor electrically connected to the at least two pressure sensors,

The processor calculates the blood of the artery according to the pressure signals of the at least two pressure sensors              The pressure is related to the attenuation relationship between the position of the artery and the distance between the hearts, the blood pressure value of the position of the artery, and then according to the attenuation              The blood pressure values of the relationship and the location of the artery get the blood pressure value of the heart.
A communication system, characterized in that the communication system comprises a blood pressure detecting device and a terminal,              The blood pressure detecting device includes:

a pressure sensor, and an elastic airbag sleeved on an outer circumference of the pressure sensor, the pressure sensing              The device squeezes the position of the artery of the human limb through the elastic airbag that is sheathed outside;

a processor electrically connected to the pressure sensor,

The processor calculates a blood pressure value of the human body according to the pressure output by the pressure sensor;

The blood pressure detecting device further includes a first communication module, and the terminal includes a second communication module,              The first and second communication modules can be connected to realize the connection between the blood pressure detecting device and the terminal              Communication.