JP3117969U - Sphygmomanometer - Google Patents

Abstract

An upper arm can be easily inserted into an arm band even if a person has a thick upper arm, and convenience is improved.
A sphygmomanometer 1 includes a housing 3 provided with an arm band part 2 for inserting an upper arm, a pump part 21 for introducing air into the arm band part 2, and an arm band part until blood pressure can be measured. A control unit 71 that controls the pump unit 21 to pressurize 2, detection units 24 and 72 that detect blood vessel information in a state where the internal pressure of the armband unit 2 is controlled by the control unit 71, and detection units 24 and 72. Display units 51 and 52 that display the blood pressure value determined from the detected blood vessel information, and a memory unit 81 that stores the blood pressure value. The control unit 71 has a negative internal pressure in the armband unit 2 after blood pressure measurement is completed. The pump unit 21 is controlled so as to forcibly exhaust air from the armband unit 2 so as to become pressure.
[Selection] Figure 5

Description

  The present invention relates to an arm insertion type sphygmomanometer in which an armband portion is built in a housing.

Conventionally, there is a sphygmomanometer in which an armband portion and a main body portion are separated and the armband portion is built in a housing having a predetermined outer shape (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 5-56938

  However, in the above prior art, the outer shape of the armband portion is determined, and the insertion opening of the upper arm in the armband portion is not formed so large (for example, the circumference is about 18 to 34 cm). It may not be easy for a measurer with a thick upper arm of 35 cm or more to insert the upper arm into the armband.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to improve the convenience by allowing the user to easily insert the upper arm into the arm band even if the measurement person has a thick upper arm.

  In order to solve the above-described problems and achieve the object, a sphygmomanometer according to the present invention includes a housing provided with an armband part for inserting an upper arm, a pump part for introducing air into the armband part, Control means for controlling the pump part so as to pressurize the armband part to a state where blood pressure can be measured; detection means for detecting blood vessel information in a state where the internal pressure of the armband part is controlled by the control means; A determining means for determining a blood pressure value from the blood vessel information detected by the detecting means; and a display means for displaying the blood pressure value determined by the determining means, wherein the control means is configured to display the blood pressure value when a predetermined condition is satisfied. The pump unit is controlled so that air is forcibly discharged from the armband part so that the internal pressure of the armband part becomes a negative pressure.

  Preferably, the main body unit having the display means is configured to be detachable from the armband unit having the housing and the pump unit.

  Preferably, the blood vessel information is information related to Korotkoff sounds and oscillating artery waves.

  As described above, according to the present invention, for example, in addition to the ease of inserting the upper arm into the armband before measurement, the ease of removing the arm from the armband after measurement can also be improved. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment described below is an example as means for realizing the present invention, and the present invention can be applied to a modified or modified embodiment described below without departing from the spirit of the present invention.

[Description of device]
FIG. 1 is an external perspective view of a sphygmomanometer according to an embodiment of the present invention as viewed from the front (a) and side (b). FIG. 2 is an external view showing a storage position (a) and an open position (b) of the armrest of the armband unit of the present embodiment. FIG. 3 is a perspective view showing the attachment / detachment state of the main body unit and the armband unit of the present embodiment. FIG. 4 is a front view (a), a top view (b), and a rear view (c) of the main unit of the present embodiment.

  As shown in FIGS. 1 to 4, the sphygmomanometer 1 according to the present embodiment includes an arm band portion 2 that compresses the upper arm during blood pressure measurement, and is housed in a housing 3 having a predetermined self-standing (vertical) outer shape. It consists of an armband unit 10 and a main body unit 50 that is detachably attached to the armband unit 10, and there is no need to wrap an armband around the upper arm of the measurer as in the prior art, and blood pressure measurement is performed on either the left or right upper arm. This is an arm-inserted blood pressure monitor that can be used.

  The housing 3 is formed with an opening 4 for a measurer to insert an arm, and the arm band 2 is disposed on the inner peripheral surface of the opening 4. The armband part 2 consists of a flexible cloth bag or rubber bag that forms an insertion hole for the upper arm. On the upper surface 3a of the housing 3, in addition to the adapter socket 5 for detachably storing the main unit 50, a start switch (SW) 11 for starting the measurement and for stopping the measurement (emergency exhaust) Operation units such as a stop switch (SW) 12 and a storage prohibition switch (SW) 13 are provided. Further, the side wall 3 b of the housing 3 is provided with an AC adapter insertion port 14, and the front surface 3 c is provided with a battery housing 15.

  In addition, an armrest 6 for placing a measurer's elbow is provided on the back surface portion 3 d of the housing 3. The armrest 6 is capable of inserting the upper arm by opening the armband portion 2 and the storage position for closing the armband portion 2 with respect to the hinge portion 7 at the lower back of the housing 3 (see FIG. 2A). And an open position (see FIG. 2B).

  The support surface (front surface) for receiving the arm in the armrest 6 is formed with a concave curved groove portion 9 extending from the hinge portion 7 to the free end portion, and has a function of guiding the upper arm to the correct position. Yes.

  Further, the rear surface 3d of the housing 3 has a shape that matches the outer shape of the armrest 6, and the rear surface of the armrest 6 has a smooth surface. 3 (see FIG. 2B).

  The armrest 6 is held at the storage position by preventing a fall from the storage position to the open position when not in use by providing a moderation when opening and closing by forming a cam-like portion on the hinge portion 7 or the like. And when opening the armrest 6 to an open position, what is necessary is just to push the projection part 8 formed in the armrest 6 back, pressing down the armband unit 10 with one hand. Thereby, when not in use, it can be stored compactly, and space saving can be achieved.

  The armband unit 10 and the main body unit 50 are provided with connectors 9 and 49, respectively. When the main body unit 50 is inserted into an appropriate position with respect to the adapter socket portion 5 of the housing 3, the armband unit 10 is electrically connected. While being connected, the armband part 2 and the pressure detection part 72 are physically connected in the state which prevented the leakage of the air to the exterior.

  The connectors 9 and 49 have a power supply terminal for supplying power from the armband unit 10 to the main body unit 50, a signal terminal for transferring control signals between the both units, and the connection of the main body unit 50 to the armband unit 10. A terminal for confirmation is provided, and when the main unit 50 is inserted into an appropriate position with respect to the adapter socket portion 5 of the housing 3, it is electrically connected to the armband unit 10 to be turned on, and the time and date are displayed on the display portion. The date is displayed and an audible alarm sounds. The adapter socket portion 5 holds the main unit 50 so as to be inclined rearward with respect to the upper surface portion 3 a of the housing 3.

  On the front part of the main unit 50, a first display unit 51 for displaying a maximum blood pressure value, a minimum blood pressure value, a pulse, and a pulse pressure, and past measurement results (blood pressure value and measurement date and time) for a predetermined number of times from the latest one. A second display unit 52 that simultaneously displays (20 times) as a graph is arranged in parallel. The first and second display portions 51 and 52 are both LCD panels. In addition, an average switch (SW) 53 for displaying an average value of blood pressure values for a predetermined number of times (for example, 20 times) recently measured, in order from the latest blood pressure value, is provided at the lower part of the front portion of the main unit 50. A graph movement switch (SW) 54 is provided for selecting an arbitrary graph from a plurality of graphs in which the maximum blood pressure value and the minimum blood pressure value are displayed in a band shape. The average switch 53 also serves as a determination switch (SW) for setting time and the like.

  Further, on the upper surface of the main unit 50, a display ON switch (SW) 55 for turning on / off the power source of the main unit 50 and turning on / off the display units 51 and 52, and a user changeover switch 56 for switching a measurer. A month display switch (SW) 57 for displaying an average value of blood pressure values for each month, and a display changeover switch (SW) 58 for switching each display or all display of morning / evening blood pressure values, pulse and pulse pressure are provided. Yes. The user changeover switch 56 can be set to either A or B (that is, for two persons), and by setting it to the A or B side, the measurement results and graphs of either measurer are displayed.

  Also, on the back surface of the main unit 50, a battery storage unit 59, a reset switch 60 for resetting the main unit 50 and erasing stored measurement data, a time / alarm setting changeover switch for setting a clock or an alarm time (SW) 61, an alarm ON / OFF switch 62 is provided for sounding an alarm at a preset time and notifying the measurer of the measurement time.

  Each function of the main unit 50 described above can be realized in either a state in which the main unit 50 is attached to the armband unit 10 or a single state in which the main body unit 50 is detached from the armband unit 10.

  In addition to the measurement value and the trend graph, the first display unit 51 and the second display unit 52 display a character indicating that measurement is being performed, a blinking display of the graph being measured, and the like. In addition, other displays such as pressurization and decompression (exhaust) are also performed.

  FIG. 5 is a block diagram of a sphygmomanometer according to an embodiment of the present invention.

  As shown in FIG. 5, the armband unit 10 includes a pump unit 21 that supplies air to the armband unit 2 at the start of blood pressure measurement, and air in the armband unit 2 pressurized to a predetermined pressure at a constant speed. Decompression control unit 22 that depressurizes, forced exhaust unit 23 that forcibly exhausts the air inside the armband unit 2, a microphone unit 24 that detects a blood flow sound of the measurer, and vibration noise that enters the microphone unit 24 from the outside. A noise sensing unit 25 for detection is provided. The microphone unit 24 is built in the armband unit 2. The noise sensing unit 25 is composed of a vibration sensor such as a buzzer plate, and detects vibration transmitted from the measurement table on which the armband unit 10 is placed or vibration that enters when the housing 3 is touched as vibration noise.

  When blood pressure is measured by the Korotkoff sound method, the armband part 2 has a pair of (two) microphone parts 24 facing each other with respect to the opening part 4 (positions close to and far from the arteries of the upper arm). Is arranged. The vibration sensor is disposed in the housing 3 at a position close to one of the microphone sections 24 (a position far from the artery of the upper arm), and it has been found that the microphone section 24 responds to vibration noise similar to the vibration sensor. For this reason, this one microphone part 24 can be used also as a vibration sensor, and a vibration sensor can also be abolished.

  Further, the armband unit 10 includes an armband unit power supply unit 26 and an AC adapter unit 27 in addition to the above-described start switch 11, stop switch 12, and memory prohibition switch 13. The armband unit power supply unit 26 includes a plurality of (four) AA batteries stored in the battery storage unit 15 described above, and constitutes a DC 6V DC power supply. The AC adapter unit 27 is connected to the above-described insertion port 14 to constitute an AC power supply with a rated voltage of 100V.

  On the other hand, the control unit 71 is mounted on the main unit 50. The control unit 71 includes a pressure detection unit 72 that detects the pressure inside the armband unit 2, a filter amplifier unit 73 that performs signal processing on the detection signal of the microphone unit 24, a pump drive unit 74 that drives the pump unit 21, and a decompression unit. A pressure reducing valve driving unit 75 for driving the pressure reducing valve of the control unit 22, an exhaust valve driving unit 76 for driving the exhaust valve of the forced exhausting unit 23, a filter amplifier unit 77 for processing a detection signal of the noise sensing unit 25, a main unit power supply Unit 78, armband unit power supply unit 26, AC adapter unit 27, power supply control unit 79 for controlling main unit power supply unit 78, clock circuit 80 having a clock function, nonvolatile memory for storing blood pressure values and measurement time data Etc., an external device such as a personal computer (PC) by means of a memory unit 81, a buzzer unit 82 for generating an alarm sound, RS232C The communication unit 83 is connected to control the communication.

  The pressure detection unit 72 converts and amplifies the internal pressure of the armband unit 2 into an electric signal, converts the pressure into a digital signal by A / D conversion, and outputs the digital signal to the control unit 71. The digital signal input to the control unit 71 is sequentially converted into a pressure value and output to the display units 51 and 52 as a display signal.

  The filter amplifier unit 73 converts the detection signal from the microphone unit 24 into an electrical signal, amplifies it, converts it into a digital signal by A / D conversion, and outputs it to the control unit 71. When performing blood pressure measurement by the Korotkoff sound method, the control unit 71 detects the Korotkoff (K) sound and its generation point and extinction point from the digital signal input to the control unit 71, whereby the blood pressure value (maximum blood pressure and Diastolic blood pressure) is calculated and displayed on the display units 51 and 52 as a display signal. In the case of the pressure pulse wave, the highest blood pressure and the lowest blood pressure are calculated by known pressure detection and pulse wave detection / calculation, and output and displayed on the display units 51 and 52.

  Further, the control unit 71 calculates the pulse rate from the vascular pulsation (vibration artery wave) and / or the appearance interval of the K sound obtained from the pressure value, and outputs the pulse rate together with the blood pressure value to the display units 51 and 52 as a display signal.

  Further, the control unit 71 calculates the pulse pressure from the difference between the maximum blood pressure value and the minimum blood pressure value, and when the pulse pressure display operation is performed by the display changeover switch 58, it is output to the display units 51 and 52 as a display signal. To do.

  The filter amplifier 77 amplifies the noise component filtering and the filtered signal component with respect to the detection signal of the noise sensing unit 25 and outputs the amplified signal component to the control unit 71.

  The pump drive unit 74, the pressure reducing valve drive unit 75, and the exhaust valve drive unit 76 drive the pump unit 21, the pressure reduction control unit 22, and the forced exhaust unit 23 based on control signals from the control unit 71, respectively.

  The power supply control unit 79 uses the AC adapter unit 27 or the armband unit power supply unit 26 (AC adapter priority) when the main unit 50 is connected to the armband unit 10, and is not connected to the armband unit 10. Only the power supply system is switched to use the main unit power supply unit 78.

  The main unit power supply 78 includes a plurality of (two) lithium button batteries stored in the battery storage 59 described above, and is mainly used as a backup power supply for the memory 81.

  The memory unit 81 stores the measured values of the users A and B set by the user changeover switch 56 in different areas. Further, the memory unit 81 reads out the measured values of the users A and B set by the user changeover switch 56 and outputs them to the control unit 71. The memory unit 81 has a capacity capable of storing measurement values of about 730 times (raw data for 3 years or monthly average data for 60 months by measurement twice a day (morning and evening)).

  Furthermore, the control unit 71 includes the first display unit 51, the second display unit 52, the average switch 53, the graph movement switch 54, the display ON switch 55, the user changeover switch 56, the month display switch 57, the display changeover switch 58, A reset switch 60, a time / alarm setting changeover switch 61, and an alarm ON / OFF switch 62 are connected.

  The control unit 71 includes a CPU, a ROM, a RAM, an interface circuit, and the like. In this embodiment, the Rivaroch Korotkoff method is applied as a blood pressure measurement method, but other measurement methods such as a pressure pulse wave (oscillometric method) can also be applied. In this case, the microphone unit 24 is not necessary. The control unit 71 inputs an operation signal from each switch described above according to the procedure of the blood pressure measurement program stored in the ROM. Then, the control unit 71 outputs drive signals to the pump drive unit 74, the pressure reducing valve drive unit 75, and the exhaust valve drive unit 76 based on the detection signals from the sensors 24, 25, and 72. Further, the control unit 71 obtains values such as blood pressure and pulse from the K sound signal of the microphone unit 24, stores these values in the memory unit 81, and outputs a display signal to the display units 51 and 52. Further, when the vibration noise detected by the noise sensing unit 25 is greater than or equal to a predetermined value, the control unit 71 cancels the K sound signal detected by the microphone unit 24 and removes the influence of the vibration noise.

  The main unit 50 can be connected to an external device such as a PC or a printer, or a measuring device such as a thermometer, a weight meter, a blood glucose level measuring device, or a pedometer via the communication unit 83, and inputs each measurement data. Then, it can be stored in the memory unit 81, output to a printer, or downloaded to a PC. Therefore, for example, a doctor can easily print out a blood pressure value measured at home from a main unit owned by the measurer or download it to a PC.

[Description of operation]
6 and 7 are flowcharts showing a blood pressure measurement operation by the sphygmomanometer according to the embodiment of the present invention.

  The following steps are realized by the CPU (arithmetic processing unit) of the control unit 71 executing a program stored in the ROM.

  In FIG. 6, when the start switch 11 is pressed, initial setting is executed (S101). Next, the display units 51 and 52 are inspected (all segments are turned on for about 1 second) (S102). Next, it is confirmed that the internal pressure is not applied to the armband portion 2, and the pressure value in this state is set to zero (S103). Thereafter, pressure display on the display units 51 and 52 is started (S104).

  Next, the exhaust valve of the forced exhaust unit 23 is closed, and the pump unit 21 is operated to start pressurization (S105). Next, when the armband part 2 is pressurized by the pump part 21 and the internal pressure of the armband part 2 reaches an appropriate pressure value (S106), the pressurization by the pump part 21 is stopped (S107). Next, decompression control by the decompression control unit 22 is started (S108), and a blood pressure measurement operation is started (S109). Further, if it is determined that the pressurization is insufficient during the pressure reduction control (S110), repressurization is performed (S111), and the pressure reduction control is started again (S108).

  In S112 of FIG. 7, the K sound signal is detected, and the pressure at the time when the first K sound signal is detected is set to the maximum blood pressure. Further, when the pressure reduction is continued and the K sound signal is not detected, the pressure at the time when the last K sound signal is detected is set to the minimum blood pressure (S113). In S113, the pulse rate is calculated from the blood vessel pulsation and / or the appearance interval of the K sound obtained from the blood pressure value.

  When the minimum blood pressure is set, the exhaust valve of the forced exhaust section 23 is opened to stop the pressure reduction control (S114), a suction process described later is performed (S201), and the blood pressure value and the pulse rate are displayed simultaneously (S115). Thereafter, when the measurement is continued, the start switch 11 is pushed (S116), the stop switch 12 is pushed, or the measurement result is displayed in S118. Visually, as illustrated in FIG. 10A, the first display unit 51 displays numerical values of the maximum blood pressure, the minimum blood pressure, and the pulse rate that are the current measurement results, and the second display unit 52 displays the values. The current measurement result (length from systolic blood pressure to systolic blood pressure) is displayed blinking in a graph. Further, as illustrated in FIG. 10B, the measurement results up to the latest 20 times are displayed in the graph in order on the second display unit 52 every time measurement is performed.

  Then, when a predetermined time (second) γ elapses without the stop switch 12 being pressed, the power is turned off and this flow is finished (S117 to S119).

  Further, the control unit 71 performs the battery check shown in FIG. 8 in the initial setting of S101.

  In FIG. 8, when the output voltage V of the armband unit power supply unit 26 falls below the specified value X (3.7 ± 0.2 V), the battery replacement mark blinks (S121, S122), and the specified value Y (X− When the voltage is lower than 0.1 ± 0.05 V), the pump unit 21 is stopped, the exhaust valve of the forced exhaust unit 23 is opened, the armband unit 2 is rapidly exhausted, and the battery replacement mark blinks (S123 to S126). ).

  FIG. 9 is a flowchart showing the suction processing of S201 in FIG.

  After stopping the pressure reduction control in S114 of FIG. 7, the exhaust valve of the forced exhaust part 23 is closed, the pump part 21 is operated to start the pressure reduction (suction) inside the arm band part 2 (S202), and the arm band part 2 After the elapse of a predetermined time (second) α such that the internal pressure becomes negative, the pressure reduction by the pump unit 21 is stopped (S204). Instead of performing pressure reduction for a predetermined time as described above, control may be performed so that pressure reduction is continued until the internal pressure of the armband portion 2 reaches a predetermined negative pressure. Further, in the present embodiment, the suction and pressure reduction is performed using the pump unit 21 which is originally intended to introduce and pressurize the air to the armband portion 2, but a configuration in which a pump for suction and pressure reduction is separately provided may be adopted. Good.

  According to the above embodiment, the armband portion 2 is more deflated than when it is naturally exhausted (atmospheric pressure) by forcibly discharging air from the inside of the armband portion 2 so that the internal pressure of the armband portion becomes negative. Since the opening for inserting the upper arm can be enlarged, the upper arm can be easily inserted, and the ease of removing the arm from the arm band 2 after the measurement can be improved.

It is the external appearance perspective view which looked at the blood pressure meter of the embodiment concerning the present invention from the front (a) and the side (b). It is an external view which shows the accommodation position (a) and open position (b) of the armrest of the armband unit of this embodiment. It is a perspective view which shows the attachment or detachment state of the main body unit and armband unit of this embodiment. It is the front view (a), top view (b), and back view (c) of the main body unit of this embodiment. 1 is a block diagram of a sphygmomanometer according to an embodiment of the present invention. It is a flowchart which shows the blood-pressure measurement operation | movement by the blood pressure meter of this embodiment. It is a flowchart which shows the blood-pressure measurement operation | movement by the blood pressure meter of this embodiment. It is a flowchart which shows the battery check by the blood pressure meter of this embodiment. It is a flowchart which shows the attraction | suction process of S201 in FIG. It is a figure which shows the example of a display of the measurement result in the main body unit of this embodiment (a), (b).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blood pressure monitor 2 Arm band part 3 Housing 4 Opening part 5 Adapter socket part 6 Armrest 7 Hinge part 8 Projection part 9 Groove part 10 Arm band unit 11 Start switch (SW)
12 Stop (emergency exhaust) switch (SW)
13 Memory prohibition switch (SW)
14 AC adapter insertion port 15 Battery storage unit 21 Pump unit 22 Depressurization control unit 23 Forced exhaust unit 24 Microphone unit 25 Noise sensing unit 26 Armband unit power supply unit 27 AC adapter unit 50 Main unit 51 First display unit 52 Second Display 53 Average switch (SW)
54 Graph movement switch (SW)
55 Display ON switch (SW)
56 User changeover switch 57 Month display switch (SW)
58 Display switch (SW)
59 Battery compartment 60 Reset switch (SW)
61 Time / alarm setting selector switch (SW)
62 Alarm ON / OFF switch (SW)
71 Control unit 72 Pressure detection unit 73 Filter amplifier unit 74 Pump drive unit 75 Pressure reducing valve drive unit 76 Exhaust valve drive unit 77 Filter amplifier unit 78 Main unit power supply unit 79 Power supply control unit 80 Clock circuit 81 Memory unit 82 Buzzer unit 83 Communication unit

Claims (3)

A housing provided with an armband for inserting the upper arm;
A pump part for introducing air into the armband part;
Control means for controlling the pump unit so as to pressurize the armband to a state where blood pressure can be measured;
Detecting means for detecting blood vessel information in a state where the internal pressure of the armband is controlled by the control means;
Determining means for determining a blood pressure value from the blood vessel information detected by the detecting means;
Display means for displaying the blood pressure value determined by the determining means,
The control means controls the pump unit to forcibly exhaust air from the armband part so that an internal pressure of the armband part becomes a negative pressure when a predetermined condition is satisfied. Sphygmomanometer.   The sphygmomanometer according to claim 1, wherein a main body unit having the display means is detachably attached to an armband unit having the housing and the pump unit.   The sphygmomanometer according to claim 1 or 2, wherein the blood vessel information is information related to at least one of Korotkoff sounds and arterial waves.

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