JPH0611701U - Wristwatch blood pressure monitor - Google Patents

Abstract

(57) [Summary] [Purpose] A blood pressure measuring device is miniaturized and built into a wrist watch so that blood pressure can be constantly measured by always wearing it on an arm. [Structure] A digital timepiece display device 12 for measuring and displaying time on a case body 2 having an armband 7, a blood pressure measurement device 1 having a pressure sensor 14, an oscillation circuit, and a processor.
And 3 are provided. The time of the digital clock display device 12 and the measurement value of the blood pressure measurement device 13 are selectively displayed on the display 3. The cuff 17 is provided in the pressure chamber 10 formed in the case body 2.
Is fixed in a continuous manner, and the pump and the exhaust valve are connected. The processor converts the pressure of the cuff 17 into a sensing signal with the pressure sensor 14, converts the sensing signal into a digital frequency signal with an oscillating circuit, calculates a blood pressure measurement value from the frequency signal based on setting data, and displays it on the display 3. To do. The blood pressure measuring device can be downsized, and a portable blood pressure measuring device that also functions as a wristwatch can be obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a blood pressure measurement device, and more particularly to a wristwatch blood pressure measurement device in which a blood pressure measurement mechanism and a wrist watch are integrally formed.

[0002]

[Prior art]

 Conventionally, wristwatches have arm bands attached to a watch case, and a watch mechanism is built in the watch case, and there are an analog type, a digital type, and a combination type of both. The sphygmomanometer has a wide cuff for wrapping around the upper arm, and a pump is attached to the cuff via a pipe and an analog pressure gauge is attached via the pipe. It is also known that the analog pressure gauge is replaced with a digital pressure gauge, but it still uses a wide range of cuffs, and the digital pressure gauge is as large as a book. Therefore, there is no known article incorporating such a blood pressure measuring device into a wristwatch.

[0003]

[Problems to be solved by the device]

 It is desirable to measure blood pressure during work breaks, travel, etc., but the conventional blood pressure measuring device is large and inconvenient to carry around at all times, and large in size, making it inconvenient to handle.

[0004]

[Means for Solving the Problems]

 The present invention is provided with a digital timepiece display device for measuring and displaying time on a case body having a wristband and a blood pressure measurement device having a pressure sensor, an oscillation circuit and a processor. And the measured value from the blood pressure measurement device are selectively displayed on the display device of the digital timepiece display device, the cuff is fixedly connected to the pressure chamber formed in the case body, and air is introduced into the pressure chamber. A pump capable of supplying and an exhaust valve capable of discharging air in the pressure chamber are connected, and the processor converts the pressure of the cuff into a sensing signal by the pressure sensor, and converts the sensing signal into a digital frequency signal by the oscillation circuit. Then, the blood pressure measurement value is calculated from the frequency signal based on the setting data and displayed on the digital time display device. Further, the air pressure chamber has openings formed at both ends thereof, and cuffs are symmetrically mounted on the both openings. Further, the cuff is an elongated synthetic resin bag body having an opening formed at one longitudinal end, the surface attached to the arm-wound belt is flat, and a plurality of ridges are formed in parallel on the surface contacting the arm. . Further, the air pressure chamber has an opening formed on the lower end surface thereof, and a cuff is capped on the opening.

[0005]

[Action]

 In the present invention constructed as described above, the case body is slightly larger than the wristwatch case, and can be worn on the wrist like a wristwatch by the wristband, which is small and convenient to carry. By wrapping the wristband around the wrist, the air in the cuff is in communication with the air in the pressure chamber, so the air in the cuff is intermittently pressurized with the pulsation of the blood vessels of the wrist, As a result, the air pressure in the air pressure chamber changes. Then, the pressure sensor can detect the pressure change in the pressure chamber. The sensing signal of the pressure sensor is digitally converted into a frequency signal by the oscillation circuit. The processor calculates a blood pressure measurement value based on the frequency signal and digitally displays the calculated value on a digital time display device. When it is not used as a sphygmomanometer, it becomes a digital clock.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a blood pressure measuring device according to the present invention, and FIG. 2 is a sectional view thereof. The case body 2 of the wristwatch blood pressure measuring device 1 is formed in a case shape on the watch side, and a display portion 3 for digital display is exposed and formed on the upper surface, and a reference numeral 4 is a name display portion. Band fixing portions 5 and 6 are formed on both ends of the case body 2, and arm-wound bands 7 and 7 are attached via shafts 8 and 8. Further, a pump 9 is attached to a side portion of the case body 2, and the pump 9 is formed to communicate with an air pressure chamber 10 described later. Inside the case body 2, a pressure chamber 10 is formed in a lower portion thereof, a partition plate 11 is provided in an upper portion thereof, and a digital clock display device 12 is internally provided in an upper portion thereof, and the digital clock display device 12 is A digital clock is used to expose the digital display device on the display unit 3.

A blood pressure measuring device 13 is installed between the partition plate 11 and the atmospheric pressure chamber 10. The blood pressure measuring device 13 includes a pressure sensor 14 for measuring the pressure inside the pressure chamber 10, an oscillation circuit 15 for converting a sensing signal sent from the pressure sensor 14 into a digital signal, and a frequency signal sent from the oscillation circuit 15. On the basis of this, it is composed of a processor 16 for calculating the blood pressure value. The sensing unit 14A of the pressure sensor 14 faces the inside of the air pressure chamber 10, and the processor 16 is electrically connected to the digital display device 12.

The pressure chamber 10 is formed in a tank shape, but it may be a metal tank, a synthetic resin tank, or a tube body. The embodiment shown in FIG. 2 is a tank made of metal, and openings 10A, 10A are formed at both ends thereof, and tubular cuffs 17, 17 are attached to the openings 10A, 10A in a communicating manner. ing. The cuff 17, 17 is an elongated synthetic resin tube body having an opening 17A at one longitudinal end, and the opening 17A is externally fitted to the opening 10A, 10A of the air pressure chamber 10. One surface is flat, and this flat surface is attached to the inner side surfaces of the armbands 7, 7. The surface of the cuff 17 that contacts the arm is formed with a plurality of raised portions 17B, 17B. The reason why the raised portion 17B is formed is that the cuff does not bend and the internal gas is not divided into two even when the armband 7 is formed into an annular shape, and that the surface of the cuff 17 easily adheres to the skin. This is because. The contact surface between the arm-wound band 7 and the cuff 17 is adhered with an adhesive, but when the arm-wound band 7 is made of metal, it can be stopped by a metal stop pin or the like.

In FIGS. 1 and 2, shafts 7A and 7B are attached to the tips of the arm-wound bands 7 and 7, respectively, and an adjustment band 7C is attached to one of the shafts 7A. Velcro 7D is attached to the outer surface. Then, the arm-wound bands 7, 7 can be fixed to the arm by hanging the tip end of the adjusting band 7C on the other shaft 7B from the inside and engaging the Velcro 7D. FIG. 3 is a plan view of relevant parts showing the relationship between the air pressure chamber 10 and the pump 9 for introducing air. The pump 9 has a valve portion 9A covered with a dome-shaped synthetic resin air bag 9B. The valve portion 9A has an intake valve 9D attached to an intake hole 9C and an exhaust valve 9F attached to an exhaust hole 9E. The air sucked into the air bag 9B from the outside is exhausted from the exhaust hole 9E by pressurizing the air bag 9B from the outside, and the exhaust hole 9E is formed in a thin tubular shape to form the air pressure chamber 10 It is fitted so as to communicate with. That is, by pressurizing the air bag 9B, the air entering from the intake hole 9C is discharged to the air pressure chamber 10 from the air exhaust hole 9E, and by repeating this, the air pressure chamber 10 and the cuffs 17, 17 communicating with it are discharged. Air can be pumped in to increase the internal air pressure. In FIG. 3, reference numeral 18 is an exhaust valve for bleeding air from the air pressure chamber 10. In this exhaust valve, the valve shaft 18A is urged outward by a spring 18B. By pushing the valve shaft head 18C toward the air pressure chamber 10, the valve shaft 18A moves against the spring 18B and exhausts. The hole 18D is opened. FIG. 4 is a block circuit diagram showing the relationship between the blood pressure measurement device 13 and the digital timepiece display device 12.

The digital timepiece display device 12 has the same function as a general digital timepiece. The digital timepiece display device 12 is divided into a display unit 3 and a name display unit 4, and the display unit 3 displays time and also the systolic blood pressure value and the diastolic blood pressure value when necessary. In addition, the name display section 4 notifies the user by displaying "Zikan" when the content currently displayed on the display section 3 is, for example, time and "Ketsuatsu" when it is a blood pressure value. The power supply 12A uses a general battery, and the oscillator 12B uses a crystal oscillator. The divider circuit 12C is a circuit that divides the pulse oscillated from the oscillator 12B into a cycle that matches the clock. The counter circuit 12D divides the number of input oscillations sent from the divider circuit 12C into seconds, minutes, and time units. To count. The decoder 12E gives an instruction to activate the identification of the 7-segment numeral component in the display device 12F according to the numerical value input from the counter circuit 12D. By this command, the time and date are digitally displayed on the display device 12F. Further, when the blood pressure measuring device 13 presses the cuff 17 against the wrist H, the pressure sensor 14 senses the pulsation of the blood vessel as a change in the air pressure in the air pressure chamber 10 due to the cuff 17.

The pressure sensor 14 uses a sensor that can be converted into a voltage, such as an electrostatic variable capacitor. In the case of electrostatic variable capacitors, a voltage is applied with an insulator interposed between two flat plates of crystal. Then, the frequency of oscillation by the crystal plate changes due to the change in atmospheric pressure of the atmospheric pressure chamber 10. The oscillating circuit 15 converts the sensing signal from the pressure sensor 14 into a frequency signal, shapes the waveform, and sends it to the processor 16 as a frequency signal (digital signal). The processor 16 calculates the blood pressure value and the pulse rate of the frequency signal received from the oscillation circuit 15 according to the preset data of the storage circuit, and sends it to the decoder 12F of the digital clock display device 12 via the control circuit. The timepiece and the blood pressure measuring device are selectively used by switching the switch 16A. The decoder 12E operates the seven segments of the display device 12F according to the blood pressure measurement value or the pulse value input from the processor 16 to display a digital number.

As described above, according to the present invention, the wristband 7 is wrapped around the wrist so that the wristband can be always carried like a wristwatch. Normally, the air in the cuff 17 is evacuated by opening the exhaust valve 8 and used as a wristwatch. Next, when the blood pressure is to be measured, the air bag 9B of the pump 9 is repeated several times and pushed by the fingertips, whereby the intake valve 9D and the exhaust valve 9F are actuated, and the air pressure chamber 10 and the cuffs 17 and 17 communicating therewith Can be filled with air. That is, by switching the switch 16A in advance, the time display of the clock can be stopped and the blood pressure value can be displayed on the display device 12F.

As the blood pressure numerical values, as shown in FIG. 1, numerical values such as systolic blood pressure and diastolic blood pressure are sequentially displayed from the left. The air pressure for the cuffs 17, 17 can be freely adjusted by the operation of the pump 9 and the exhaust valve 18. After measuring the blood pressure, the switch 16A is switched to the timepiece operation and the exhaust valve 18 is opened so that the air in the cuffs 17 and 17 can be discharged, and it can be used as a normal digital timepiece. Since the device of the present invention can be worn on the wrist at all times, it is possible to measure the blood pressure during the meeting, travel, work, and play to manage the health. In particular, people with high blood pressure can accurately check the increase in blood pressure during meetings and work. For this reason, if blood pressure rises above the standard, the meeting can be stopped, work can be stopped, and a drop in blood pressure can be waited for.

The present invention is not limited to the above-mentioned embodiment, and can be appropriately modified in design. For example, when the reference value of high blood pressure is 180, for example, a device can be added so that a red lamp can be turned on or an alarm sound can be emitted. FIG. 5 is a sectional view showing the second embodiment. The same members and parts having the same functions as those in the above-mentioned embodiment are denoted by the same reference numerals.

The second embodiment is different in that the cuff 17 is attached to the lower surface of the air pressure chamber 10. That is, the opening 10B was formed on the lower surface of the atmospheric pressure chamber 10, and the rim 10C was capped with the cap-shaped cuff 17. The cuff 17 is formed with a plurality of dome-shaped raised portions 17B and 17B protruding. In the second embodiment, the cuff 17 is brought into contact with the inner surface of the wrist (generally the portion for measuring the pulse), so that the expansion and contraction of the blood vessel can be directly caught and the size of the cuff 17 can be increased. Since it can be made small and the cuff 17 does not need to be attached to the armband 7, there is an advantage in manufacturing. In general, blood pressure measurement is performed by wrapping a cuff around the upper arm, because it is preferable to be close to the heart. In the present invention, since the measurement is performed on the wrist, the difference value corresponding to the difference between the measurement value on the upper arm and the measurement value on the wrist is stored in the processor 16 in advance. It is possible to display on the display device 12F a numerical value close to the numerical value measured at.

[0016]

[Effect of device]

 As described above, the present invention has the following excellent effects. A. This is a mode in which changes in the pressure of blood vessels in the wrist are changed to changes in the air pressure in the cuff and the air pressure chamber, and this is detected by a pressure sensor, so the device can be made extremely compact and it can be worn on the wrist like a wristwatch. And you can always carry it. B. Since the digital display device can also be used as a digital clock device, it is possible to display the time or the blood pressure value according to the purpose. C. Since it can be worn on the arm at all times, people with high blood pressure can measure blood pressure at all times even during work, and can check their blood pressure management in detail.

[Submission date] August 29, 1991

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

[Means for Solving the Problems]

 The present invention includes a digital timepiece display device for measuring and displaying time on a case body having a wristband, and a blood pressure measurement device having a pressure sensor, an oscillation circuit and a processor. , And the measurement value from the blood pressure measurement device are selectively displayed on the display device of the digital clock display device,A cuff provided with the sensing portion of the pressure sensor along the inner surface of the armband. In addition to being able to detect the internal pressure, The airCuffWith a pump that can supplyCuff An exhaust valve that can exhaust the air insideIn the case bodyThe processor converts the pressure of the cuff into a sensing signal by the pressure sensor, converts the sensing signal into a digital frequency signal by the oscillating circuit, and outputs a blood pressure measurement value from the frequency signal based on setting data. It is calculated and displayed on the digital time display device. The sensing part of the pressure sensor may be inserted into the pressure chamber provided in the case body. It may be directly inserted into the cuff without providing a chamber. If a pressure chamber is provided,Openings are formed at both ends, and cuffs are symmetrically attached to both the openings. The cuff is an elongated synthetic resin bag body having an opening at one longitudinal end, band The surface attached to the arm was flat, and a plurality of ridges were formed in parallel on the surface contacting the arm. Furthermore, the pressure chamberToHas an opening formed on the lower end surface and a cap is capped in the opening.You may.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

The pressure chamber 10 is formed in a tank shape, but it may be a metal tank, a synthetic resin tank, or a tube body. For this tube body, for example, the cuff 17 itself is used. In this case, the cuff arranged along the armband 7 is attached to the back surface of the case body 2, and the sensing portion 14A of the pressure sensor 14 is attached to this cuff portion. Will be inserted . The embodiment shown in FIG. 2 is a metal tank having openings 10A, 10A formed at both ends thereof, and tubular cuffs 17, 17 are attached to the openings 10A, 10A so as to communicate with each other. ing. The cuffs 17 and 17 are slender synthetic resin tube bodies having an opening 17A at one longitudinal end, and the opening 17A is externally fitted to the openings 10A and 10A of the air pressure chamber 10. One surface is flat, and this flat surface is attached to the inner side surface of the arm band 7, 7. The surface of the cuff 17 that contacts the arm is formed with a plurality of raised portions 17B, 17B. The reason for forming the raised portion 17B is to prevent the cuff from bending and the internal gas being divided into two even when the armband 7 is formed into an annular shape, and to make the surface of the cuff 17 easily adhere to the skin. This is because. The contact surface between the arm-wound band 7 and the cuff 17 is adhered with an adhesive, but when the arm-wound band 7 is made of metal, it can be stopped by a metal stop pin or the like.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

As the pressure sensor 14, for example, a sensor capable of converting to a frequency such as a variable capacitor is used. In the case of a variable capacitor , an oscillator is formed by interposing an insulator between two flat plates . The change air pressure in air pressure chamber 10 Then, the frequency of the oscillation is changed by changes in the capacitance of the variable capacitor. The oscillation circuit converts the sensing signal from the pressure sensor 14 into a frequency signal and sends it as a frequency signal (digital signal) to the processor 16. The processor 16 calculates the blood pressure value and the pulse rate of the frequency signal received from the oscillation circuit 15 according to the preset data of the storage circuit, and sends it to the decoder 12 E of the digital clock display device 12 via the control circuit. Switching between the clock and the blood pressure measuring device is performed by switching the switch 16A. The decoder 12E operates the seven segments of the display device 12F according to the blood pressure measurement value or the pulse value input from the processor 16 to display a digital number. Note that by using a variable capacitor type sensor, it is possible to immediately digitally converted by oscillation circuit changes in frequency, size of the apparatus can cost reduction. That is, in general oscillometric method in the blood pressure measurement, it must look fine pressure change, and waveform analysis by measuring more than 50 to 100 times per second in order to follow the pressure change in the high resolution, also wrist the requires accuracy of 10-fold position in base ratio of the conventional blood pressure measurement in the blood pressure measurement, but this that Do requires fast AD converter in, by using a variable capacitor type sensor and a microprocessor, a high The circuit can be simplified without using an expensive AD converter.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

[0016]

[Effect of device]

As described above, the present invention has the following excellent effects. A. This is a mode in which changes in the pressure of blood vessels in the wrist are converted into changes in the air pressure in the cuff or the air pressure chamber, and this is detected by a pressure sensor. And you can always carry it. B. Since the digital display device can also be used as a digital clock device, it is possible to display the time or the blood pressure value according to the purpose. C. Since it can be worn on the arm at all times, people with high blood pressure can measure blood pressure at all times even during work, and can check their blood pressure management in detail. D. The sensing signal from the pressure sensor, since you for processing with the microprocessor is converted into a frequency signal, without using an expensive AD converter, also simplifies the circuit, time and measurement further one display device It is possible to reduce the size and cost of the device by selectively displaying the value or by separately incorporating the pump and the exhaust valve in the case body .

[Brief description of drawings]

FIG. 1 is a perspective view of a blood pressure measuring device.

FIG. 2 is a sectional view of a blood pressure measuring device.

FIG. 3 is an enlarged plan view of an essential part showing the relationship between a pressure chamber and a pump in a blood pressure measurement device.

FIG. 4 is a block circuit diagram showing the relationship between a digital clock display device and a blood pressure measurement device.

FIG. 5 is a sectional view showing a second embodiment.

[Explanation of symbols]

 1 ... wristwatch blood pressure measuring device 2 ... case body 3 ... display part 4 ... name display part 5, 6 ... band fixing part 7 ... arm band 7A, 7B ... shaft 7C ... adjusting band 7D ... velcro 8 ... shaft 9 ... pump 9A ... Valve part 9B ... Air bag 9C ... Intake hole 9D ... Intake valve 9E ... Exhaust hole 9F ... Exhaust valve 10 ... Air pressure chamber 10A, 10B ... Opening part 11 ... Partition plate 12 ... Digital clock display device 12A ... Power supply 12B ... Oscillator 12C ... Frequency divider circuit 12D ... Counter circuit 12E ... Decoder 12F ... Display device 13 ... Blood pressure measuring device 14 ... Pressure sensor 14A ... Sensing part 15 ... Oscillation circuit 16 ... Processor 17 ... Cuff 17A ... Opening 17B ... Raised part 18 ... Exhaust valve 18A … Valve shaft 18B… Spring 18C… Valve shaft head

[Procedure amendment]

[Submission date] August 29, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (4)

[Scope of utility model registration request] 1. A digital timepiece display device for measuring and displaying time, and a blood pressure measurement device having a pressure sensor, an oscillation circuit and a processor are provided on a case body having a wristband, The time and the measurement value from the blood pressure measurement device are selectively displayed on the display device of the digital timepiece display device, and the cuff is fixedly connected to the air pressure chamber formed in the case body, and the air is introduced into the air pressure chamber. A pump capable of supplying and an exhaust valve capable of discharging air in the pressure chamber are connected, the processor converts the pressure of the cuff into a sensing signal by the pressure sensor, and converts the sensing signal into a digital frequency signal by the oscillation circuit. The wristwatch blood pressure measuring instrument is characterized in that a blood pressure measurement value is calculated from the frequency signal based on setting data and is displayed on the digital time display device. 2. The wristwatch blood pressure measuring instrument according to claim 1, wherein the air pressure chamber has openings formed at both ends thereof, and cuffs are symmetrically provided at the both openings. 3. The cuff is an elongated synthetic resin bag body having an opening formed at one longitudinal end, the surface attached to the arm-wound belt is flat, and a plurality of raised bodies are provided on the surface contacting the arm. The wristwatch blood pressure measuring device according to claim 2, wherein the wristwatch blood pressure measuring device is formed in a column. 4. The air pressure chamber has an opening formed on a lower end surface thereof,
The wristwatch blood pressure measuring device according to claim 1, wherein a cuff is capped on the opening of the wristwatch.