KR100898763B1 - Blood pressure and pulse wave measuring system and terminal thereof - Google Patents

Abstract

The present invention comprises a blood pressure and pulse wave measurement terminal (4) and server computer (6), the blood pressure and pulse wave measurement terminal (4) is a terminal that can be worn on the wrist worn on the user's wrist, such as a patient to measure blood pressure and pulse wave information Store and display information, and if necessary (can be set by default), wirelessly transmit the measured or stored blood pressure and pulse wave information, and the server computer 6 receives the blood pressure wirelessly received from the blood pressure and pulse wave measurement terminal 4 And by uploading the pulse wave information to the setting web on the Internet, it is possible to accurately measure the blood pressure or pulse of patients, and to monitor the blood pressure and pulse wave for multiple patients simultaneously and in real time.

Blood pressure, pulse wave information, signal processor, blood pressure and pulse wave measurement terminal, server computer,

Description

Blood pressure and pulse wave measuring system and terminal for health care {BLOOD PRESSURE AND PULSE WAVE MEASURING SYSTEM AND TERMINAL THEREOF}

1 is a block diagram of a blood pressure and pulse wave measurement system for healthcare according to an embodiment of the present invention;

2 is a block diagram of the blood pressure and pulse wave measurement terminal of FIG.

3 is a control flowchart of the system of the present invention;

Figure 4 is a schematic external view of the blood pressure and pulse wave measurement terminal of Figure 1,

5A and 5B illustrate screen monitoring examples.

The present invention relates to a health care system, and in particular, the blood pressure and pulse wave for healthcare that can measure blood pressure and pulse wave at the same time in real time in a hospital or the like, as well as remotely via the Internet. It relates to a measurement system.

The rapid development of modern science and technology leads to a remarkable economic growth and an improvement in living standards, and the interest in modern man's health is increasing. Blood pressure and pulse wave are very important factors in diagnosing human health.

The measurement of blood pressure is made to determine the state of hypertension or shock, and treatment through blood pressure management can prevent complications in advance, rather than simply reducing high blood pressure. In addition, to prevent the occurrence of atherosclerosis, it is possible to simultaneously manage and control the risk factors of atherosclerosis, such as diabetes, smoking, hyperlipidemia. Pulse wave is used as an important factor in diagnosing the health status of the cardiovascular system. In oriental medicine, the oriental medical doctor diagnoses the patient's health status by checking the pulse wave through the finger pulse.

At the moment, digital blood pressure and pulse measuring devices that can measure blood pressure and pulse easily in general homes or workplaces, but not in hospitals, are on the market. It is much easier to manage health care easily and simply.

However, the digital blood pressure and pulse meter can not measure blood pressure properly when the patient is moving at the time of measurement, and blood pressure measurement is not performed correctly in the case of an irregular heartbeat.

Thus, in large hospitals and most general hospitals, the blood pressure of many patients is often measured by nurses using an analog blood pressure and pulse meter.

If it is possible to accurately measure the blood pressure or pulse of patients, and monitor the blood pressure and pulse wave of critically ill patients who need to check blood pressure and pulse wave continuously, it will not only provide convenient and effective treatment service but also help in emergencies. You will also be able to take immediate action. Furthermore, if an emergency vehicle can automatically measure the blood pressure and pulse wave of an emergency patient in transit and can be monitored directly at a distant hospital, the emergency vehicle carrying the emergency patient can provide very effective measures and treatment upon arrival at the hospital. As would be possible, a system implementing this is desired.

There is also a need for a system that can accurately measure blood pressure and pulse wave while using a terminal in a home, and monitor it in a management center such as a hospital via the Internet.

Accordingly, an object of the present invention is to provide a healthcare blood pressure and pulse wave measuring system and a terminal for accurately measuring blood pressure or pulse wave of patients and monitoring blood pressure and pulse wave for a plurality of patients simultaneously and in real time.

Another object of the present invention is to provide a blood pressure and pulse wave measurement system for healthcare and a terminal for automatically measuring the blood pressure and pulse wave of an emergency patient in an emergency vehicle and being immediately monitored at a hospital located in a remote place.

Still another object of the present invention is to provide a blood pressure and pulse difference measuring system that accurately measures blood pressure and pulse wave while using a terminal in a home, and can be monitored in a management center such as a hospital through the Internet.

In accordance with the above object, the present invention provides a blood pressure and pulse wave measuring system for health care, comprising: a pressure wearable part including a pump for air injection, an air discharge valve, and a pressure sensor in a cuff as a terminal wearable on a wrist; On the main body mounted on the display unit, a signal processing unit and a wireless transmitting and receiving unit are mounted on the user's wrist, and are worn on the user's wrist to measure blood pressure and pulse wave information and store the inside and display the blood pressure and pulse wave information on the display unit, And a blood pressure and pulse wave measuring terminal for wirelessly transmitting pulse wave information through a wireless transmitter and receiver. A server computer for uploading the blood pressure and pulse wave information wirelessly received from the blood pressure and pulse wave measuring terminal to a setting web on the Internet; The signal processing unit; The absolute pressure signal and the pressure vibration signal are extracted from the output signal of the pressure sensor and the extracted absolute pressure signal and the pressure vibration signal are input to calculate the average blood pressure using an oscillometric technique, and the pressure vibration signal at the systolic and diastolic pressures is calculated. The systolic and diastolic blood pressures are calculated and stored as blood pressure information, and the pulse wave signal is extracted and stored as pulse wave information at the point where the absolute pressure in the cuff is equal to the calculated average blood pressure, and the stored blood pressure information and pulse wave information are stored. And display on the display unit and output to the wireless transceiver.

In addition, the present invention, in the blood pressure and pulse wave measurement terminal, as a terminal that can be worn on the wrist, provided with a pressure generating unit including an air injection pump, an air discharge valve and a pressure sensor in the cuff, on the body mounted on the cuff A display processing unit and a signal processing unit and a wireless transmitting and receiving unit are provided. The signal processing unit extracts an absolute pressure signal and a vibration signal from the output signal of the pressure sensor, and inputs the extracted absolute pressure signal and the vibration signal as an oscillometric signal. The average blood pressure is calculated using the technique, and the systolic and diastolic blood pressures are calculated and stored as blood pressure information using the pressure vibration signals at the systolic and diastolic pressures, and at the point where the absolute pressure in the cuff is equal to the calculated average blood pressure. Extracts the pulse wave signal and stores the pulse wave information as pulse wave information, and stores the stored blood pressure information and pulse wave information on the display unit. Splay and output to the wireless transmitter and receiver.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a blood pressure and pulse wave measuring system 2 for health care according to an exemplary embodiment of the present invention, and includes a blood pressure and pulse wave measuring terminal 4 and a server computer 6. 4 is a schematic external view of the blood pressure and pulse wave measurement terminal 4.

The blood pressure and pulse wave measuring terminal 4 is a terminal that can be worn on a wrist and is worn on a user's wrist such as a patient to measure blood pressure and pulse wave information, store and display the information therein, and if necessary (can be set as default), or Stores blood pressure and pulse wave information wirelessly. The server computer 6 is a computing device for uploading the blood pressure and pulse wave information wirelessly received from the blood pressure and pulse wave measurement terminal 4 to a setting web on the Internet.

The blood pressure and pulse wave measurement terminal 4 includes a pressure generator 8 including a pump 12, a valve 14, and a pressure sensor 16 installed in the cuff 10, which is an air bag, and the cuff 10. It consists of the main body 11 fixed on the image.

The main body 11 includes a signal processing unit 18, a signal storage unit 20, a display unit 22, a removable storage medium 23 such as a memory card, an RF transmission / reception unit 24, and a button unit 26. The display unit 22 is mounted on the main body 11 in the form of a liquid crystal monitor to visually display blood pressure, pulse rate, and pulse wave information to a user or a measurer as shown in FIG. 4. In the displayed pulse wave information, the pulse wave waveform shown on the time axis and the amplitude axis or the pulse wave waveform can be implemented as a first derivative differentiation waveform. The first derivative of the pulse wave is a microcomputer in the signal processing unit 18 to be described with reference to FIG. 3. It can be expressed through signal processing using the controller 50.

The pump 12 installed in the inlet of the cuff 10 for applying pressure to the wrist is driven by a DC motor as an air injector for injecting air into the cuff 10. The valve 14 installed in the exhaust port of the cuff 10 is a valve for discharging air to the outside of the cuff 10 is implemented as a solenoid valve according to an embodiment of the present invention.

The pump 12 and the valve 14 in the cuff 10 are controlled by the microcontroller 50 of the signal processing unit 18 to be described later in detail with FIG. The pump 12 which causes air to be injected into the cuff 10 is opened and closed by a pump control signal PWMSg in the form of pulse width modulation (PWM) of the microcontroller 50, and the air is discharged from the cuff 10. In the valve 14, the DC motor is controlled by the valve control signal ON / OFFsg of the microcontroller 50. Accordingly, when injecting air pressure, the air pressure in the cuff 10 is not reduced due to the operation of the pump 12 of the DC motor based on the pump control signal (PWMsg), and the valve control signal (ON / OFFsg) when the air pressure is discharged. The operation of the valve 14, which is implemented as a solenoid valve based on C), allows the air pressure to be rapidly reduced (e.g., about 1 second).

The pressure sensor 16 in the cuff 10 senses the pressure in the cuff 10 and converts it into an electrical signal and outputs the signal to the signal processor 18 of the main body 32.

The pressure sensor 16 has a single-element four-terminal piezoresistor, which is a device exhibiting sensitivity to shear stress, is disposed at the edge of a square silicon diaphragm according to an embodiment of the present invention. The structure is configured to detect the pressure in the cuff 10 with high sensitivity and output an electrical signal corresponding thereto to the signal processor 18. Of the total 4 pins of 4 terminals, 2 pins are connected to the power supply terminal and the ground terminal, and the other 2 pins are output terminals that output voltage according to pressure, respectively.

On the other hand, the signal processing unit 18 installed in the main body 11 of the blood pressure and pulse wave measurement terminal 4 controls the operation of the pump 12 and the valve 14, the blood pressure in the converted electrical signal output from the pressure sensor 16 Extracting the pulse wave number, pulse wave form, and the blood pressure and pulse wave information extracted by the signal processor 18 is stored in the signal storage unit 20.

In the main body 11 of the blood pressure and pulse wave measuring terminal 4, the RF transmitter / receiver 24 measures blood pressure and pulse wave information measured in the signal processor 18 or stored in the signal storage unit 20 under the control of the signal processor 18. Is transmitted wirelessly to the server computer 6, and the button unit 26 applies the key data corresponding to the button input of the user to the signal processing unit 18.

As described above, the display unit 22 of the main body 11 displays the blood pressure, the pulse wave number, and the form of the pulse wave extracted under the control of the signal processor 18, and the removable storage medium 23 is the signal processor 18. It stores the blood pressure, pulse wave number and pulse wave form that are extracted under the control of.

FIG. 2 is a block diagram of the blood pressure and pulse wave measurement terminal 4 of FIG. 1, and specifically includes a concrete block diagram of the signal processor 18.

Referring to FIG. 2, the signal processor 18 may include a differential amplifier 30, a first amplifier 32, first, second, and third low pass filters 34, 36, 38, and first and second agents. 2 consists of a high pass filter (40) (42), second and third amplifiers (44) and (46), analog-to-digital converters (48), and microcontrollers (50). The signal is input to extract and process the absolute pressure signal, the pressure vibration signal, and the pulse wave signal, and control the operation of the pump 12 and the valve 14 in the cuff 10.

The differential amplifier 30, the first amplifier 32, and the first low pass filter 34 in the signal processing unit 18 input an electric signal output from the pressure sensor 16 to extract an absolute pressure signal. The differential amplifier 30, the first amplifier 32, the second low pass filter 36, the first high pass filter 40, and the second amplifier 44 in the signal processor 18 correspond to the extraction unit. Corresponds to the pressure vibration signal extraction unit for extracting the pressure vibration signal as an input of the electrical signal output from the pressure sensor 16. The differential amplifier 30, the first amplifier 32, the third low pass filter 38, the second high pass filter 42, and the third amplifier 46 in the signal processing unit 18 are pressure sensors 16. Corresponding to the pulse wave signal extraction unit for extracting the pulse wave signal to the input electrical signal output from the).

The absolute pressure signal, the vibration signal extraction unit, the pulse wave signal extraction unit, the absolute pressure signal, the vibration signal, and the pulse wave signal are converted into digital forms through the analog-to-digital converter 48, respectively, and then the microcontroller. 50 is applied.

The extraction operation of the absolute pressure signal extraction unit, the pressure vibration signal extraction unit, and the pulse wave signal extraction unit in the signal processing unit 18 will be described in more detail as follows.

The electrical signal output from the pressure sensor 16 passes through the differential amplifier 30 and the first amplifier 32 of the signal processor 18 to amplify a predetermined signal to extract absolute pressure, vibration, and pulse wave signals. Used as a source signal. The differential amplifier 30 amplifies and outputs a difference between two output signals outputted from two-pin output terminals of four pins of four terminals of the single-element four-terminal piezoelectric element constituting the pressure sensor 16.

Of the source signals, the absolute pressure source signal is first removed by noise by the first low pass filter 34, and then is converted into a digital value by the analog-to-digital converter 48, so that the microcontroller 50 as an absolute pressure signal. Is applied to.

Absolute pressure means the pressure in the cuff 10. In order to measure the blood pressure, the pressure (absolute pressure) in the cuff 10 should be measured, and the absolute pressure signal should be such that there is no signal change due to the pulse. Normally, when blood pressure is measured, the measurement is performed in a state where the subject is stabilized, and the maximum number of pulses at this time is about 120 times per minute (0.5 Hz). Accordingly, the first low pass filter 34 of the present invention sets the upper limit cutoff frequency to 0.5 Hz to remove the change in pressure generated by the pulse in the output signal of the pressure sensor 16. In addition, the first low pass filter 34 also plays a role of removing noise generated by harmonics or DC motor vibration caused by the amplification of the output signal of the pressure sensor 16.

Among the source signals, the pulsating source signal is noise removed by the second low pass filter 36, and then a DC component is removed by the first high pass filter 40, and then the signal is transmitted through the second amplifier 44. Is amplified and outputted, only the pressure vibration signal generated by the pulse vibration inside the cuff 10 is extracted.

The pressure vibration refers to the pressure change in the cuff 10 generated by the pulse while applying air pressure in the cuff 10 to increase the pressure on the blood pressure measuring unit to measure the blood pressure. The second low pass filter 36 is a filter that removes harmonics generated when amplifying the output signal of the pressure sensor 16 and noise caused by the vibration of the DC motor, and the upper limit cutoff frequency is approximately. 20 Hz is preferred. Setting the upper limit cut-off frequency to 20Hz can generally ignore harmonics of more than 10 times the pulse rate when the signal is measured and processed by the pulse.If the body is stable, assuming the maximum pulse rate of 120 pulses The frequency is 20 Hz. In addition, since the lower limit cutoff frequency of the first high pass filter 40 is implemented at 1.5 Hz, the DC component of the pressure change is removed.

Among the source signals, the pulse wave source signal is noise removed by the third low pass filter 38, and then the DC signal is removed by the second high pass filter 42, and the signal is transmitted through the third amplifier 46. The predetermined amplification is performed to extract the pulse wave signal.

The pulse wave signal refers to a change signal of the pressure generated by the pulse while maintaining a constant pressure in the blood pressure measurement site. Like the second low pass filter 36, the third low pass filter 38 removes the noise caused by the harmonics generated by amplifying the output signal of the pressure sensor 16 and the vibration of the DC motor. As the filter, the upper limit cutoff frequency is preferably about 20 Hz. The second high pass filter 42 is employed to remove the direct current component from the pulse wave signal, and the lower limit cutoff frequency is preferably 0.1 Hz.

Absolute pressure signal, pressure vibration signal and pulse wave signals extracted through the absolute pressure signal extractor, the pressure vibration signal extractor and the pulse wave signal extractor respectively are converted into digital values by the analog-to-digital converter 48. When the converted absolute pressure signal is applied to the microcontroller 50, the microcontroller 50 converts it to a pressure unit (mmHg) and stores it in the signal storage unit 20.

In addition, the pressure vibration signal output from the second amplifier 44 of the pressure vibration signal extraction unit is converted into a digital value by the analog-digital converter 48 and applied to the microcontroller 50, and the microcontroller 50 is inputted. The digital vibration signal is directly stored in the signal storage unit 20.

The pulse wave signal output from the third amplifier 46 of the pulse wave signal extracting unit is converted into a digital value by the analog-to-digital converter 48 and applied to the microcontroller 50, and the microcontroller 50 has an input digital form. The pulse wave signal is directly stored in the signal storage unit 20.

The blood pressure and pulse wave measurement terminal 4 may be used as a ubiquitous terminal for health care, and when the blood pressure and pulse wave information stored in the mobile storage medium 23 such as a memory card are used, the measurement result may be subsequently obtained through a specialized institution. You can also do a detailed analysis.

3 is a control flowchart of the system of the present invention, which measures blood pressure and pulse wave and performs wireless transmission as necessary.

Now, the blood pressure and pulse wave measuring operation for healthcare according to an embodiment of the present invention will be described in more detail.

First, after the cuff 10 is worn on the wrist of the subject (step 100 of FIG. 3), when the user presses a button corresponding to the start of the measurement on the button unit 26, the signal processor 18 first operates a valve control signal. The valve 14 is closed because (ON / OFFsg) is applied to the valve 14 in an off control state. As the valve 14 is closed, air in the cuff 10 is not discharged to the outside (step 102 of FIG. 3).

Next, the signal processing unit 18 applies the pump control signal PWMSg to the pump 12 of the DC motor in the form of a pulse width modulation signal, so that the pump 12 pumps the external air and cuffs 10. Air is injected into the device (step 102 of FIG. 3).

The cuff pressure that increases as air is injected into the cuff 10 is converted into an electrical signal by the pressure sensor 16 and transmitted to the signal processor 18 (step 104 in FIG. 3), and the signal processor 18 transmits the cuff pressure. The electrical signal is processed in the concrete motion as in the concrete block as shown in FIG. 2 to extract the absolute pressure signal in the cuff and the pressure oscillation signal generated by the pulse in the artery of the wrist (step 106 of FIG. 3). .

The extracted absolute pressure signal and the pressure vibration signal are converted into a digital signal by using the analog-digital converter 48 in the signal processing unit 18 (108 in FIG. 3), and the signal storage unit ( 20) (step 110 of FIG. 3).

When the absolute pressure in the cuff 10 reaches a preset upper limit pressure value of 200 mmHg (step 112 in FIG. 3), the signal processing unit 18 stops the driving of the pump 12 and the analog-to-digital converter 48. The operation is stopped and the valve 14 is opened to exhaust the air in the cuff 10 (step 114 in FIG. 3).

Thereafter, the signal processor 18 calculates systolic blood pressure, diastolic blood pressure, and average blood pressure using an oscillometric technique from the absolute pressure signal and the pressure vibration signal stored in the signal storage unit 20 (step 116 of FIG. 3). .

In the oscillometric technique, the average blood pressure is calculated using the maximum amplitude algorithm (Maximum Amplitude Algorithm) to estimate the cuff pressure when the magnitude of the oscillation signal generated in the cuff reaches the maximum value as the average blood pressure, and the systolic and diastolic pressures. A specific ratio, ie, the characteristic ratio, is also extracted between the magnitude of each pressure vibration signal and the maximum pressure vibration signal generated in Eq. And used to estimate the systolic and diastolic blood pressures. In other words, the systolic and diastolic stages of the heart are the points to which the respective characteristic ratios are applied at the maximum pressure vibration magnitude, and the points are calculated as the systolic and diastolic blood pressures.

After performing step 116 of FIG. 3, the signal processing unit 18 deletes the absolute pressure signal and the pressure vibration signal stored in the signal storage unit 20 and uses the calculated blood pressure values (shrinkage blood pressure and diastolic blood pressure) as blood pressure information. By storing in the signal storage unit 20 (steps 118 and 120 of FIG. 3), the blood pressure measurement operation is completed.

After completing the blood pressure measurement operation as described above, in the embodiment of the present invention, the pulse wave is measured through steps 122 to 140 of FIG. 3, and the blood pressure and pulse wave measured by performing steps 142 and 144 as necessary. Send information over the air to the web.

More specifically, the signal processing unit 8 having completed the blood pressure measurement operation again closes the valve 14 and operates the pump 12 to inject air pressure into the cuff 10 to measure the pulse wave (FIG. 3). Step 122). The pressure in the cuff 10 is converted into an electrical signal through the pressure sensor 16 and transmitted to the signal processing unit 18 (step 124 of FIG. 3), and the signal processing unit 18 receives the cuff ( 10, the increasing absolute pressure signal is extracted, converted into a digital signal using an analog-to-digital converter 48, and the value thereof is monitored (steps 126 and 128 of FIG. 3).

The signal processing unit 18 stops the operation of the pump 12 at the point where the absolute pressure in the cuff 10 is equal to the average blood pressure during monitoring (steps 130 and 132 of FIG. 3), and the differential amplifier 30 of the signal processing unit 18. Is caused by the contraction and relaxation of the heart in the artery of the wrist through the path through the first amplifier 32, the third low pass filter 38, the second high pass filter 42, and the third amplifier 46 The pulse wave is extracted, converted into a digital signal using the analog-digital converter 48, and stored in the signal storage unit 20 (steps 136 to 140 of FIG. 3).

When the pulse wave measurement is finished, the signal processing unit 18 opens the valve 12 to discharge the air in the cuff 10 (step 142 of FIG. 3), and if necessary, the blood pressure stored in the signal storage unit 20 and Pulse wave information, that is, systolic blood pressure, diastolic blood pressure, mean blood pressure, and pulse wave are wirelessly transmitted to the server computer 6 through the RF transmitter / receiver 24 (step 144 of FIG. 3).

The server computer 6 uploads wirelessly received systolic blood pressure, diastolic blood pressure, mean blood pressure, and blood pressure and pulse wave information including pulse waves to the web so that it can be checked through another computer connected to the Internet (e.g., a hospital management computer). Step 146 of 3), the operation of the blood pressure and pulse wave measuring system is completed.

5A and 5B show an example of a screen of a patient list and measurement information that is uploaded on the web from the server computer 6 and monitored in real time on the screen through another computer. Referring to the screens of FIGS. 5A and 5B, detailed information such as pulse wave shape may be checked on each patient personal information screen. In other computers such as hospital management computers (specific places such as nursing offices and doctor's offices), measurement information of multiple patients can be downloaded in real time, stored in an internal database, and monitored continuously. It can also be used for data analysis of each patient.

In addition, it is possible to monitor the blood pressure and pulse wave information transmitted through the ambulance when the emergency patient is transported to the ambulance, so that the patient's condition can be determined and treated as soon as they arrive.

The terminal 4 according to an embodiment of the present invention is optionally equipped with a function for displaying a result of a measurement through a liquid crystal monitor and an interface for mounting a removable storage medium such as a memory card, and a user may use the terminal independently.

As described above, the present invention is capable of monitoring blood pressure and pulse wave at the same time and in real time in large hospitals, as well as remote monitoring through the Internet, which has the advantage of eliminating time and location restrictions. In addition, it is possible to eliminate the need for nurses to measure the blood pressure of many patients several times in large hospitals, and it is possible to monitor the blood pressure and pulse wave of critical patients all the time, so it is very effective to check the condition of patients such as emergencies in real time. It makes treatment possible. In addition, by allowing emergency patients to be transported to the emergency vehicle, it can be linked to the hospital network so that the patient's blood pressure and pulse wave monitoring can be started from the moment the patient gets into the emergency vehicle, so that an effective treatment can be obtained when arriving at the hospital.

Claims (11)

delete In healthcare blood pressure and pulse wave measuring system: As a terminal worn on the wrist, a pressure generating unit including an air injection pump, an air discharge valve, and a pressure sensor is provided in the cuff, and a display unit, a signal processing unit, and a wireless transmitting / receiving unit are mounted on a main body mounted on the cuff. A blood pressure and pulse wave measurement terminal worn on a user's wrist to measure and store the blood pressure and pulse wave information therein and to display the blood pressure and pulse wave information on the display unit and to wirelessly transmit the stored blood pressure and pulse wave information through a wireless transmitter and receiver; A server computer for uploading the blood pressure and pulse wave information wirelessly received from the blood pressure and pulse wave measuring terminal to a setting web on the Internet; The signal processing unit, An absolute pressure signal extraction unit for extracting an absolute pressure corresponding to the pressure in the cuff from the output signal of the pressure sensor; A pressure vibration signal extraction unit for extracting a pressure vibration signal corresponding to the pressure change in the cuff generated by the pulse while increasing the pressure on the blood pressure measuring part from the output signal of the pressure sensor; A pulse wave signal extracting unit for extracting a pulse signal corresponding to a change in pressure generated by the pulse while maintaining a constant pressure in the blood pressure measuring part from the output signal of the pressure sensor; Calculate the average blood pressure using the extracted absolute pressure signal and the pressure vibration signal using an oscillometric technique, calculate the systolic blood pressure and diastolic blood pressure using the pressure vibration signals in the systolic pressure and the diastolic pressure, and store the blood pressure information. Extracting the pulse wave signal at the point where the absolute pressure in the cuff is equal to the calculated average blood pressure and storing the pulse wave information, and displaying the stored blood pressure information and pulse wave information on the display unit and outputting the pulse wave information to the wireless transmitting and receiving unit. Healthcare blood pressure and pulse wave measurement system, characterized in that consisting of a microcontroller to control. The method of claim 2, wherein the absolute pressure signal extraction unit, A first amplifier for amplifying a predetermined output signal of the pressure sensor; And a first low pass filter for removing noise generated by harmonics or DC motor vibration in the output signal of the first amplifier and outputting the absolute pressure signal. The method of claim 2, wherein the vibration signal extracting unit, A first amplifier for amplifying a predetermined output signal of the pressure sensor; A second low pass filter for removing noise generated by harmonics or DC motor vibration in an output signal of the first amplifier; A first high pass filter for removing a direct current component of a pressure change from an output signal of the second low pass filter; And a second amplifier for amplifying the output signal of the first high pass filter by a predetermined amplification and outputting it as a pressure vibration signal. The pulse wave signal extractor of claim 2, A first amplifier for amplifying a predetermined output signal of the pressure sensor; A third low pass filter for removing noise generated by harmonics or DC motor vibration in an output signal of the first amplifier; A second high pass filter for removing a DC component from a pulse wave signal in an output signal of the third low pass filter; And a third amplifier configured to amplify a predetermined output signal of the second high pass filter and output the pulse signal as a pulse wave signal. delete In the blood pressure and pulse wave measurement terminal, As a terminal worn on the wrist, a pressure generating unit including an air injection pump, an air discharge valve, and a pressure sensor is provided in the cuff, and a display unit, a signal processing unit, and a wireless transmitting / receiving unit are mounted on a main body mounted on the cuff. The signal processing unit, An absolute pressure signal extraction unit for extracting an absolute pressure corresponding to the pressure in the cuff from the output signal of the pressure sensor; A pressure vibration signal extraction unit for extracting a pressure vibration signal corresponding to the pressure change in the cuff generated by the pulse while increasing the pressure on the blood pressure measuring part from the output signal of the pressure sensor; A pulse wave signal extracting unit for extracting a pulse signal corresponding to a change in pressure generated by the pulse while maintaining a constant pressure in the blood pressure measuring part from the output signal of the pressure sensor; Calculate the average blood pressure using the extracted absolute pressure signal and the pressure vibration signal using an oscillometric technique, calculate the systolic blood pressure and diastolic blood pressure using the pressure vibration signals in the systolic pressure and the diastolic pressure, and store the blood pressure information. Extracting the pulse wave signal at the point where the absolute pressure in the cuff is equal to the calculated average blood pressure and storing the pulse wave information, and displaying the stored blood pressure information and pulse wave information on the display unit and outputting the pulse wave information to the wireless transmitting and receiving unit. Healthcare blood pressure and pulse wave measuring terminal, characterized in that consisting of a microcontroller to control. The method of claim 7, wherein the absolute pressure signal extraction unit, A first amplifier for amplifying a predetermined output signal of the pressure sensor; And a first low pass filter which removes noise generated by harmonics or DC motor vibration from the output signal of the first amplifier and outputs the absolute pressure signal. The method of claim 7, wherein the vibration signal extracting unit, A first amplifier for amplifying a predetermined output signal of the pressure sensor; A second low pass filter for removing noise generated by harmonics or DC motor vibration in an output signal of the first amplifier; A first high pass filter for removing a direct current component of a pressure change from an output signal of the second low pass filter; And a second amplifier for amplifying the output signal of the first high pass filter by a predetermined amplification and outputting it as a pressure vibration signal. The method of claim 7, wherein the pulse wave signal extraction unit, A first amplifier for amplifying a predetermined output signal of the pressure sensor; A third low pass filter for removing noise generated by harmonics or DC motor vibration in an output signal of the first amplifier; A second high pass filter for removing a DC component from a pulse wave signal in an output signal of the third low pass filter; And a third amplifier for amplifying the output signal of the second high pass filter by a predetermined amplification and outputting the pulse signal as a pulse wave signal. [8] The blood pressure and pulse wave measuring terminal for health care according to claim 7, wherein the pressure sensor has a structure in which a single-element four-terminal piezoelectric element, which is a device that exhibits sensitivity to shear stress, is disposed at an edge of a square silicon diaphragm. .

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