JPH01166742A - Electronic hemomanometer - Google Patents

Abstract

PURPOSE:To properly and easily set pressure, by mounting a pressure setting data reading means for applying pressure setting data to a card and reading the same by the card and performing pressurization on the basis of the pressure set data read by the pressure setting data reading means. CONSTITUTION:A display device 5 such as a liquid crystal display device, a pressure switch 8 and a power supply switch 7 are provided to the upper surface of a main body 4 and a card insert port 8 is opened to the main body 4 from the upper surface thereof to the rear surface thereof. A thermal head 25 performs printing to a card C composed of thermal recording paper and a reflection type light sensor (pressure setting data reading means) 26 reads the pressure setting mark marked on the card C. A mark (m), a maximal blood pressure, a minimal blood pressure and a pulse rate are printed on the card C to set the pressure value corresponding to the kind of the mark (m). Since the card is used as recording paper, the keeping and arrangement of measuring results become easy and, by reading the pressure setting data applied to the card, a proper pressure value is automatically set.

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to an electronic blood pressure monitor with a printer. Specifically, the present invention relates to an electronic blood pressure monitor with a printer. Specifically, the pressure setting can be properly and easily made, and measurement results can be easily organized and stored. This invention relates to an electronic blood pressure monitor.

(b) Conventional technology Conventionally, an electronic blood pressure needle with a printer has been equipped with a cuff, a pressure pump, an exhaust valve, a pressure sensor, a cardiovascular information detection means, a microcomputer (MPU), a roll paper feeding mechanism, a thermal head, etc. It is known that

The cuff is attached to the subject's arm or the like, and is pressurized by the pressurizing pump until the air pressure within the cuff (hereinafter referred to as cuff pressure) reaches a pressurization setting value. This pressurization setting value needs to be a value at which the subject's cuff-attached site is hemostatic, and is preferably several tens of mallog higher than the subject's immediate systolic blood pressure. If the pressure setting is high, the measurement time will be prolonged, causing pain to the subject, and the area where the cuff is attached will become suffocated.
Measurement errors will occur. Conversely, if it is low, necessary cardiovascular information (Korotkoff sounds, pulse waves, etc.) cannot be detected and measurements cannot be performed.

Therefore, it is possible to have the user select the pressurization setting value using a slide switch, etc., or to store the pressurization setting value from the previous measurement in the memory of the electronic sphygmomanometer, and to read and use that value the next time it is used. Are known.

When the cuff pressure reaches the pressurization set value, the pressurization pump stops and
The exhaust valve opens and slow exhaust begins.

Cardiovascular information of the subject generated during this slow evacuation process is detected by the cardiovascular information detection means, and the MPU determines the systolic blood pressure value and diastolic blood pressure value based on the cardiovascular information and cuff pressure detected from this cardiovascular information. do. Once the systolic blood pressure value etc. are determined, the exhaust valve performs rapid exhaust and the measurement ends.

On the other hand, the systolic blood pressure value determined by the MPU is displayed on a display such as an LCD, and is also printed on recording paper by a thermal head. This recording paper is sent out by the roll paper feeding mechanism from a roll built into the electronic blood pressure monitor.

(c) Problems to be Solved by the Invention In conventional electronic blood pressure monitors, as mentioned above, the pressurization setting value is selected using a slide switch, or the previous pressurization setting value is memorized. This stored value is used. However, selecting with a slide switch is time-consuming, and there are problems such as the user selecting the wrong value. In addition, if you want to store the previous pressure setting value, if another person uses the electronic blood pressure monitor before using it next time, that person's pressure setting value will be memorized and the pressure setting value There was a problem that it was no longer appropriate.

In addition, the measured systolic blood pressure values, diastolic blood pressure values, etc. are printed sequentially on recording paper, but this recording paper must be stored in an organized manner by cutting it out from the roll and pasting it on a mount etc. First, there was a problem that it was troublesome for the user.

The present invention has been made in view of the above, and aims to provide an electronic sphygmomanometer that allows pressurization settings to be made appropriately and easily, and that is convenient for organizing and storing measurement records.

(d) Means for solving the problems In order to solve the above problems, the electronic blood pressure monitor of the present invention has the following features:
It has the configuration described in section 1-xi below.

i: a cuff; ii: a pressurizing means for pressurizing the air within the cuff to a pressure setting value; iii: a depressurizing means for reducing the pressure of the air within the cuff;
v: pressure detection means for detecting the air pressure within the cuff; V: cardiovascular information detection means for detecting cardiovascular information of the subject to whom the cuff is attached; vi: the cardiovascular information obtained by the cardiovascular information detection means. blood pressure value determining means for determining a blood pressure value based on cardiovascular information and the pressure detected by the pressure detecting means; vi: printing means for printing the blood pressure value determined by the blood pressure value determining means on recording paper; viii: Recording paper feeding means for sending the recording paper, iX: The recording paper is a card, pressure setting information is attached to this card, and X: Pressure setting information is transmitted from this card. The apparatus is characterized in that it comprises a pressurization setting information reading means for reading, and the pressurizing means performs pressurization based on the pressurization setting information read by the pressurization setting information reading means.

(e) Function: In the electronic blood pressure monitor of the present invention, each of the plurality of users is made to own a card. When one of the users wants to measure blood pressure, he or she sets this card in the electronic blood pressure monitor, and the pressure setting information on the card is read, and the cuff is pressurized based on this information. This pressurization setting information is attached so that an appropriate pressurization setting value can be obtained for each user, and even after use by another person, an appropriate pressurization setting value can be obtained. Also, if you set the card,
Pressure is automatically set, so you don't have to worry about it.

On the other hand, since the blood pressure measurement results are printed on the card, it is easy to organize and store the blood pressure measurement records, and there is no need to paste them on a mount as in the past.

(f) Example An embodiment of the present invention will be described below based on the drawings.

In this embodiment, the present invention is applied to a cuff type and sound (Korotkoff sound) type electronic blood pressure monitor. of course,
This invention is also applicable to an oscilloscope type electronic blood pressure monitor and a finger electronic blood pressure monitor.

FIG. 2 shows an external perspective view of the electronic blood pressure monitor 1 of this embodiment. 2 is a well-known cuff, and a tube 3 allows
It is connected to the main body 4. A display 5 such as a liquid crystal display, a pressure switch 6, and a power switch 7 are provided on the top surface of the main body 4. Further, a card insertion slot 8 is provided from the top surface of the main body 4 to the rear surface.

FIG. 4 is a block diagram illustrating the circuit configuration of the electronic blood pressure monitor 1 according to the embodiment. The cuff 2 has an exhaust valve (M pressure means).
9, a pressure pump (pressurizing means) 10, and a pressure sensor (pressure detecting means) 11 are connected. The output signal of the pressure sensor 11 is amplified by the amplifier 12 and converted into analog/digital (
A/D) converter 13 converts it into a digital signal and sends it to the MP
It is taken into olB.

On the other hand, the cuff 2 is equipped with a microphone (cardiovascular information detection means) 14. The output signal of the microphone 14 is input to a Korotkoff sound discriminator 17 via an amplifier 15 and a bandpass filter 16. The discrimination result of the Korotkoff sound discriminator 17 is also taken into MPolB.

The MPU 18 has a function of controlling the exhaust valve 9 and the pressure pump 10, a function of determining a blood pressure value based on cuff pressure and Korotkoff sound, and a function of controlling a card printer 20, which will be described later. Note that the display 5 and the pressure switch 6 are connected to this MPU18.

Reference numeral 21 denotes a battery, which is connected to a power on/off circuit 22 . The power switch 7 is connected to the power on/off circuit 22 and the MPU 18. Also, turn on the power/
The off circuit 22 is controlled by MPU18.

FIG. 3 is a sectional view of a main part of the main body 4 showing details of the card reader 20. 21 is a card feeding roller (recording paper feeding means). These feed rollers 21 have motors 22
A drive roller 23 driven by a motor 22 is in pressure contact with the feed roller 21, and a motor 22 rotates the feed roller 21. 24 are guide rollers that guide the cards C, respectively.

25 is a thermal head for printing on the card C made of thermal recording paper.

Reference numeral 26 denotes a reflective optical sensor (pressure setting information reading means) for reading the pressure setting mark printed on the card C. Note that 27 indicates this reflective optical sensor 2.
6 reflector. Note that instead of the reflective optical sensor 26, a transmissive optical sensor can also be used.

Next, the operation of the electronic blood pressure monitor 1 of this embodiment will be explained.

When the power switch 7 is pressed and the power is turned on, initialization processing is first performed [step (hereinafter referred to as ST) 1]. Then, it is determined whether the reflective optical sensor 26 has detected a pressure setting mark (hereinafter simply referred to as a mark) (ST2).

As shown in FIG. 5(a), card C has marks m,
Also, the systolic blood pressure value, diastolic blood pressure value, and pulse rate are printed. S
If the mark m is not detected in the determination at T2, it is assumed that the card C is not inserted into the insertion slot 8, and the process proceeds to ST3.
A message prompting the user to insert the card is displayed on the display 5 (at the same time, or in place of this, an audio notification may be provided).

This display continues until the determination in ST2 becomes YES.

When the judgment in ST2 becomes YES, that is, card C
When the card C has been inserted into the insertion slot 8, the process advances to ST4, and the card C is fed by the feeding roller 21 in steps of {circle around (2)}.

Then, it is determined whether mark m has been detected (S
r1). At this time, the type of mark m is also read by the reflective optical sensor 26 based on its reflectance.

When the determination at Sr1 is YES, the process returns to Sr1 and the card C is further advanced by one step. When the determination of Sr1 is No, that is, when the part a of the card C (the part to be printed this time) is located on the optical sensor 26, the card C is advanced by a predetermined step and the part a is placed on the thermal head. 25
be placed above. Then, the process proceeds to Sr1.

In Sr1, a pressure value is set according to the type of mark m. In this embodiment, the settings are as follows.

Mark is 1 tree line... 150mmHg
The mark is 2 wood lines...200mmHg
Mark is 3 lines ・・・・・・ 250mmHg
Of course, Mark m's [! The relationship between the class and the pressurization value is not limited to this, and the design can be changed as appropriate.

Subsequently, when the pressurization switch 6 is turned on, the exhaust valve 9 is closed (Sr1) and the pressurization pump 8 is turned on (Sr8).

At Sr1, it is determined whether the cuff pressure has reached the pressurization value set at Sr1, and this Sr is maintained until the cuff pressure reaches the pressurization value.
Wait at 1.

When the determination of Sr1 is YES, the process proceeds to 5TIO, the pressurizing pump 10 is turned off, and the exhaust valve 9 starts exhausting at a slow speed. Then, blood pressure measurement is performed as before, and MPU1
8, the systolic blood pressure value, diastolic blood pressure value, and pulse wave frequency are determined (STII). Subsequently, the exhaust valve 9 is fully opened, the cuff 2 is rapidly evacuated, and the subject's arm is released from pressurization.

At 5T13, the systolic blood pressure value etc. determined in the process at 5TII is displayed on the display 5. In addition, the systolic blood pressure value, etc.
As shown in FIG. 5(a), the thermal head 25 prints on the card C (ST14).

Subsequently, the mark m is printed on the card C by the thermal head 25 as well. This mark m is selected as follows depending on the systolic blood pressure value.

Systolic blood pressure value Number of marks m 120
Less than m111g...1 piece 120
mm) Ig or less than 1170mHg... 2 Tree 1
70 body 11g or more and less than 200 mmHg... 3
Of course, as in the case of Sr1, the relationship between the systolic blood pressure value and the type of mark m is not limited to this.

At 5T16, the card C is returned and it is determined whether or not the mark m is detected (ST17). When card C is removed from card insertion slot 8 and mark m is no longer detected, 5T
The determination of No. 17 is No, and the process returns to the determination of Sr1.

FIG. 5(b) shows the case where the date and time of measurement are also printed on the card C. Regarding other points,
This is the same as in the case shown in FIG.

In addition, in this example, the pressure setting value is divided into three stages and three types of marks are used corresponding to each level, but the number of types and shape of the marks may be changed as appropriate. It is possible. For example, FIG. 5(C) shows the mark m when three optical sensors SI, ..., S3 are used.
' is shown.

Moreover, instead of the mark, it is also possible to adopt a configuration in which the previous printed systolic blood pressure value is read. moreover,
In this embodiment, a mark is printed on the card for each measurement, but the mark may be printed on the card in advance. For example, one card for high blood pressure patients and one for low blood pressure patients may be prepared, and each card may contain
It is also possible to make marks one by one in advance so that the optimum pressure value can be set.

(G) As described in detail, the electronic blood pressure monitor of the present invention uses a card as a recording paper, and therefore has the advantage that measurement results can be easily stored and organized.

Further, the electronic blood pressure monitor of the present invention has the advantage that pressurization setting information is attached to the card, and by reading this pressurization setting information, an appropriate pressurization value can be automatically set.

[Brief explanation of the drawing]

Each of the drawings shows an embodiment of the present invention, and the first drawing is a flowchart explaining the operation of the electronic blood pressure monitor according to this embodiment.
Fig. 2 is an external perspective view of the electronic blood pressure monitor, Fig. 3 is a sectional view of main parts showing the card printer of the electronic blood pressure monitor, and Fig. 4 is a block diagram illustrating the circuit configuration of the electronic blood pressure monitor. , 5th
FIG. 5(a) is a plan view of a card applied to the electronic blood pressure monitor, and FIG. 5(b) and FIG. 5(C) are plan views showing modified examples of the card. 2: Cuff, 9: Exhaust valve, IO = Pressure pump, 11: Pressure sensor, 14: Microphone, 17: Korotkoff sound discriminator, 18: MPU. 20: Card printer, 21: Card feed roller, 25: Thermal head, 26: Reflective optical sensor, C: Card, m: Mark. Patent Applicant Tateishi Electric Co., Ltd. Agent Patent Attorney Shigeru Nakamura Figure 1 Figure 3 Figure 5 (b)

Claims (2)

[Claims] (1) a cuff, a pressurizing means for pressurizing the air within the cuff to a pressure setting value, a pressure reducing means for reducing the pressure of the air within the cuff, a pressure detecting means for detecting the air pressure within the cuff; A cardiovascular information detection means for detecting cardiovascular information of a subject wearing a cuff, and determining a blood pressure value based on the cardiovascular information obtained by the cardiovascular information detection means and the pressure detected by the pressure detection means. An electronic sphygmomanometer comprising a blood pressure value determining means for determining the blood pressure value, a printing means for printing the blood pressure value determined by the blood pressure value determining means on a recording paper, and a recording paper feeding means for feeding the recording paper. is a card, this card has pressurization setting information attached, and is equipped with a pressurization setting information reading means for reading the pressurization setting information from this card, and the pressurization setting information read by the pressurization setting information reading means is An electronic sphygmomanometer, characterized in that the pressurizing means pressurizes based on the pressure. (2) The electronic blood pressure monitor according to claim 1, further comprising a recording means for recording pressurization setting information on the card based on the systolic blood pressure value obtained by the blood pressure determination means.