JP2996565B2 - Blood pressure measurement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blood pressure measuring device, and more particularly, to a method for efficiently performing a blood pressure measurement when a large number of people perform blood pressure measurement continuously in a group medical examination or the like. The present invention relates to a blood pressure measurement device that can be used.

[0002]

2. Description of the Related Art Heretofore, manual blood pressure measurement has been widely used. The manual type uses a mercury-type blood pressure monitor, and includes a flexible container (usually called a cuff) for gas filling wound around a site where an artery exists, and a flexible container inside the flexible container. A manual pump for pumping air, and an exhaust valve for discharging air in the flexible container,
A mercury-type sphygmomanometer for detecting the air pressure in the flexible container.

[0003] The manual type has the advantages of being relatively compact and portable. But, for example,
When measuring blood pressure for a plurality of persons, operations such as air supply and exhaust to the flexible container must be repeated for each person, and all of them must be performed manually. When the measurement is continuously performed for a large number of people, there is a drawback that a great burden is imposed on the operating doctor or the like. In addition, there is also a problem that skill is required to accurately read a mercury-type blood pressure monitor. From these points, improvement in operability has been demanded.

[0004] In response to such demands, a pump for sending air to the flexible container, an exhaust means for discharging air from the flexible container, a pressure sensor for detecting air pressure in the flexible container, and the like are provided. Is controlled by a computer,
A blood pressure measurement device has been developed which calculates a blood pressure value from a detection value of a pressure sensor and digitally displays the blood pressure value on a predetermined display device. However, in the conventional blood pressure measurement device, only one flexible container can be equipped like the conventional manual type, and the flexible container to be equipped is also structured to be wrapped around the site where the artery exists. (That is, the same as the old manual type)
Met.

[0005]

In the blood pressure measuring apparatus using the above-mentioned computer, the manual operation of the pump is not required, so that the burden on the operating doctor or the like is reduced.
In addition, an effect that skill is not required for reading a measured value can be obtained, and the present invention can be conveniently used in a group health examination or the like in which a large number of people are continuously measured.

In blood pressure measurement, it has been a challenge to improve the operability described above and to shorten the measurement work time. However, the reduction of the measurement work time is difficult due to the following points as bottlenecks, and the current situation is that a long line of subjects is formed in a group medical examination or the like.

First, it requires a certain amount of time to attach the above-mentioned flexible container to a subject (a person who receives a blood pressure measurement) and to remove the flexible container.

Second, in the measurement of blood pressure, the air pressure applied to the flexible container differs for each subject, and an operation for adjusting the applied air pressure is required each time.

Third, the flexible container is usually mounted on the arm of the subject, but the optimal size of the flexible container differs depending on the thickness of the arm of the subject. Therefore, it is usually necessary to prepare several types of flexible containers having different sizes, and to exchange the flexible containers connected to the measuring device main body according to the thickness of the arm of the subject. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can efficiently execute a blood pressure measurement when there are a large number of subjects, and can greatly reduce the measurement work time. It is intended to provide a device.

[0011]

According to a first aspect of the present invention, there is provided a blood pressure measurement apparatus, comprising: a pressure measurement flow path connected to a gas-filled flexible container wound around a site where an artery exists; A pressure pump that feeds gas into the flexible container connected to the path, an exhaust unit that discharges gas from the flexible container connected to the pressure measurement channel, and a pressure pump that is connected to the pressure measurement channel. A pressure sensor for detecting the pressure in the flexible container, an operation switch unit in which switches for instructing execution of blood pressure measurement and the like are arranged, and the operation of the above-described pressurizing pump, the exhaust unit, and the pressure sensor. And a control unit for controlling based on an instruction from a switch unit and calculating a blood pressure value based on a detection value of the pressure sensor.

Further, the cuff connection port for connecting the flexible container has a plurality of cuffs, and one of the plurality of cuff connection ports communicates with the pressure measurement flow path in response to an input signal. Equipped with a selection device.

The operation switch section is provided with a cuff selection switch for selecting a cuff connection port on the cuff selection device, and the control section is provided with the cuff selection section in accordance with an instruction from the cuff selection switch. A cuff selection control function for controlling the operation of the selection device is provided.

According to a second aspect of the present invention, there is provided a blood pressure measuring apparatus which is a further improvement of the blood pressure measuring apparatus according to the first aspect.
The control unit manages a data memory for storing measurement conditions such as a pressurized value by the pressurizing pump for each cuff connection port on the cuff selection device, and the cuff connection port to be used is instructed by the cuff selection switch. In this case, the measurement condition for the designated cuff connection port is read from the data memory, and the measurement process based on the measurement condition recorded in the data memory is executed.

[0015]

The blood pressure measuring device according to the first aspect is provided with a plurality of flexible containers, and these flexible containers can be selectively used. The blood pressure measuring process can be performed by one flexible container. During the execution, another flexible container can be attached to the next subject to prepare for the next blood pressure measurement process, and such a use can be realized. It is possible to execute the next blood pressure measurement process without waiting for the required time, and it is possible to reduce the measurement work time by the time required for mounting and removing the flexible container up to now. .

Further, if a plurality of flexible containers having different sizes are connected to the cuff selecting device and the cuff connection port to be used is selected according to the thickness of the arm of the subject, It is also possible to prevent the measurement operation from being delayed due to the replacement of the flexible container, and in this respect also, the measurement operation time is reduced.

When blood pressure is measured continuously for a large number of persons, the above-described effect of shortening the measurement operation time is synergistic, and the measurement operation time can be greatly reduced.

In the blood pressure measurement device according to the second aspect, measurement condition data such as a pressurized value by a pressurizing pump can be stored in the data memory. By using the data stored in the data memory, troublesome data input becomes unnecessary, and the measurement work time can be further reduced.

[0019]

1 to 4 show an embodiment of a blood pressure measuring apparatus according to the present invention. As shown in FIG. 1, the blood pressure measurement device of this embodiment has two gas-filled flexible containers (usually called cuffs) wrapped around a site (for example, an arm) of a subject's artery. 1a, 1b and one of these flexible containers 1a, 1b
Cuff selecting device 3 connected to the pressure measuring channel 2, a pressurizing pump 4 for feeding a gas (usually air) into a flexible container connected to the pressure measuring channel 2, and connected to the pressure measuring channel 2. Exhaust means 5 for discharging the gas in the flexible container, a pressure sensor 6 for detecting the pressure in the flexible container connected to the pressure measurement flow path 2, and an instruction to execute blood pressure measurement and the like. The operation of the operation switch unit 7 in which various switches are arranged and the operation of the above-described pressurizing pump 4, the exhaust unit 5, and the pressure sensor 6 are controlled based on an instruction from the operation switch unit 7 to detect the pressure sensor 6. A control unit 8 for calculating a blood pressure value based on the value, an input from the operation switch unit 7 and the control unit 8
A display device 9 for displaying the result of the processing, a printer 10 for printing out setting data for the subject, the processing result of the control unit 8 and other information, and the blood pressure measurement device and other data processing devices (for example, And a serial port 11 for transmitting and receiving data to and from a personal computer.

Here, the flexible containers 1a and 1b are wrapped around a region where an artery exists, such as a subject's arm, and are supplied with a gas such as air into the container to expand the artery. It is used to temporarily stop the blood flow in the blood vessel or gradually discharge the gas in the container to reduce the pressure applied to the attached site to resume the blood flow in the artery. Flexible container 1a and flexible container 1b
May be different in size, or may be of the same size.

The cuff selecting device 3 includes the flexible container 1
It has two cuff connection ports 3a and 3b for connecting a and 1b, and these two cuff connection ports 3a and 3b are provided in accordance with an input signal (cuff selection signal).
One of the cuff connection ports 3a, 3b is communicated with the pressure measurement flow path 2. The cuff connection ports 3a and 3b are of a connector type which allows the flexible containers 1a and 1b to be easily attached and detached. In this embodiment, as shown in FIG. 4, they are arranged on the back of the apparatus main body. It is also conceivable to arrange it on the front or side surface of the apparatus body.

The exhaust means 5 comprises a constant speed exhaust valve 5a and a rapid exhaust valve 5b. Here, the constant speed exhaust valve 5a
Detects the fluctuation in the internal pressure of the flexible container caused by the blood flow in the artery by reducing the pressure in the flexible container raised to a predetermined value by the pressurizing pump 4 at a constant decompression rate during the blood pressure measurement process. enable. Further, the quick exhaust valve 5b is kept closed during the blood pressure measurement process, and is opened after the measurement process is completed, so that the residual pressure in the flexible container is quickly discharged. The operations of the constant speed exhaust valve 5a and the rapid exhaust valve 5b are controlled by the control unit 8. The deceleration speed of the constant speed exhaust valve 5a is determined in advance by the operation switch unit 7.
Can be set to an arbitrary value.

The pressure sensor 6 converts the detected pressure value in the flexible container into an electric signal corresponding thereto and outputs it.

The operation switch section 7 is a keyboard for inputting data and instructions necessary for causing the control section 8 to execute a blood pressure measurement process and the like. As shown in FIG. Equipped at a closer position. The operation switch unit 7 includes a function key 7a for instructing a specific process and a numeric keypad 7 for inputting numerical data.
b, a cuff selection switch 7d for selecting the cuff connection ports 3a and 3b on the cuff selection device 3 is provided in addition to a start / stop key 7c for instructing start and stop of the blood pressure measurement process.

The display device 9 is a liquid crystal display, and is provided on the upper surface of the device main body as shown in FIG. The printer 10 is provided on the numeric keypad 7b on the upper surface of the apparatus main body, and the serial port 11 is provided on the rear surface of the apparatus main body. Reference numeral 13 in FIG. 4 is a power supply socket for connecting to a commercial power supply.

As shown in FIG. 1, the control unit 8 amplifies the output signal of the pressure sensor 6 to a predetermined level, and monitors the output of the pressure signal amplifier 20 to monitor the blood flow. A pulse wave detection circuit 21 for detecting and amplifying a pressure vibration component brought to the internal pressure of the flexible container, an A / D converter 22 for converting an analog signal into a digital signal and outputting the digital signal, A multiplexer 23 for switching the input of the A / D converter 22 to the pressure signal amplifier 20 or the pulse wave detection circuit 21; and a CPU 24 for controlling the processing of the output of the A / D converter 22 and the operation of various circuits in the apparatus according to an operation program.
A ROM (read only memory) 25 storing an operation program for determining the operation of the CPU 24;
4 temporarily stores data when a predetermined process is executed, a RAM 26 which is a clock circuit for managing time information handled by the CPU 24, and stores subject data, measurement result data, and the like. A data memory 28, which is a readable and writable storage device,
And a control interface circuit 29 for controlling operations of the cuff selecting device 3, the pressurizing pump 4, the exhaust means 5, and the like based on a command from the control unit 4.

The data memory 28 not only stores the above-mentioned subject data and the data of the measurement processing result, but also a cuff connection port to be used, a pressurizing speed by the pressurizing pump 4, a set pressure, and a constant speed exhaust valve. It is also used for storing measurement condition data such as the pressure reduction rate by 5a.

The control section 8 having the above-described configuration controls the cuff selection control function for controlling the operation of the cuff selection device 3 in accordance with the instruction from the cuff selection switch 7d, A data management function for storing and managing the input data in the data memory 28 is performed, a blood pressure measurement process is executed using these functions, and the data memory 28 is operated in accordance with an instruction from the operation switch unit 7. Display device 9 for data stored in
And output to the printer 10.

The data management function of the control unit 8 includes a pressurizing speed and a set pressure by the pressurizing pump 4 and a constant speed exhaust valve 5.
The measurement condition data such as the decompression speed according to a is managed for each cuff connection port on the cuff selecting device 3 or for each subject. Then, the cuff selection switch 7
By instructing the cuff connection port to be used by d, the measurement condition for the specified cuff connection port is read out from the data memory 28 and displayed on the display device 9 or the measurement condition recorded in the data memory 28 is changed. It is possible to execute a measurement process based on the measurement process. When a subject is input from the operation switch unit 7, data on the subject is stored in the data memory 28.
And display it on the display device 9 or execute the blood pressure measurement process based on the measurement condition data set for the subject.

The blood pressure measuring device of the above embodiment is provided with two flexible containers 1a and 1b. Therefore, when continuously measuring the blood pressure of multiple people in a group health check, etc.
For example, while the blood pressure measurement process is being performed on one flexible container 1a, the other flexible container 1b is attached to the next subject to prepare for the next blood pressure measurement process. And the flexible container 1a
Is completed, the cuff connection port used by the cuff selection switch 7d is changed to the cuff connection port 3a.
To the cuff connection port 3b, and the blood pressure measurement process is executed in the flexible container 1b. Then, while the blood pressure measurement process is being performed by the flexible container 1b, the flexible container 1a is attached to the next subject to prepare for the next blood pressure measurement process.

By repeating such an operation,
The next blood pressure measurement process can be performed without waiting for the time required to attach or remove the flexible container, and the measurement work time is equivalent to the time required to attach or remove the flexible container. Can be shortened.

Measurement condition data such as the pressurizing speed and the set pressure by the pressurizing pump 4 and the depressurizing speed by the constant-speed exhaust valve 5a can be stored in the data memory 28, so that there is no need to change the measuring conditions. In such a case, by using the data stored in the data memory 28, troublesome data input becomes unnecessary, and the measurement work time is shortened accordingly. Further, two flexible containers 1a, 1 connected to the cuff selecting device 3 are provided.
If b is different in size and the cuff connection ports 3a and 3b to be used are selected according to the thickness of the subject's arm, the measurement work is prevented from being delayed due to the exchange of the flexible container. In this regard, the measurement operation time is also reduced.

When the blood pressure measurement is continuously performed for a large number of persons, the above effects are synergistic, and the measurement work time can be greatly reduced.

Although the cuff selection device 3 has two cuff connection ports in the above-described embodiment, any number of three or more cuff connection ports may be set.

The method of using the blood pressure measuring device according to the present invention is not limited to the above-described group health examination. For example, even when measuring the blood pressure of a plurality of patients housed in one hospital room, a plurality of cuff connection ports provided in the cuff selecting device 3 are allocated to each patient and used. Can be used effectively.

[0036]

The blood pressure measurement device according to the first aspect is provided with a plurality of flexible containers, and the flexible containers can be selectively used. The blood pressure measurement can be performed with one flexible container. While the processing is being performed, another flexible container can be attached to the next subject and used for the next blood pressure measurement process. It is possible to execute the next blood pressure measurement process without waiting for the time required for removal, and it is possible to reduce the measurement work time by the time required for mounting and removing the flexible container until now become.

A plurality of flexible containers having different sizes are connected to the cuff selecting device, and a cuff connection port to be used is selected according to the thickness of the subject's arm. It is also possible to prevent the measurement operation from being delayed due to the replacement of the flexible container, and in this respect also, the measurement operation time is reduced.

When the blood pressure measurement is continuously performed for a large number of persons, the above-described effect of shortening the measurement operation time is synergistic, and the measurement operation time can be greatly reduced.

In the blood pressure measurement device according to the second aspect, measurement condition data such as a pressurized value by a pressurizing pump can be stored in a data memory. By using the data stored in the data memory, troublesome data input becomes unnecessary, and the measurement work time can be further reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a plan view of one embodiment of the present invention.

FIG. 3 is a right side view of one embodiment of the present invention.

FIG. 4 is a rear view of one embodiment of the present invention.

[Explanation of symbols]

 1a, 1b Flexible container 2 Pressure measurement flow path 3 Cuff selector 3a, 3b Cuff connection port 4 Pressurizing pump 5 Exhaust means 5a Constant-speed exhaust valve 5b Rapid exhaust valve 6 Pressure sensor 7 Operation switch unit 7d Cuff selection switch 8 Control unit 9 Display device 10 Printer 24 CPU 28 Data memory

Continuation of front page (56) References JP-A-61-8025 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 5/00-5/03

Claims (2)

(57) [Claims] 1. A pressure measurement flow path connected to a gas-filled flexible container wound around a site where an artery exists, and pressurization for sending gas into the flexible container connected to the pressure measurement flow path. A pump, an exhaust unit that exhausts gas in the flexible container connected to the pressure measurement channel, a pressure sensor that detects a pressure in the flexible container connected to the pressure measurement channel, and a blood pressure. An operation switch unit in which switches for instructing execution of measurement and the like are arranged; and controlling the operation of the above-described pressurizing pump, the exhaust unit, and the pressure sensor based on an instruction from the operation switch unit, and A blood pressure measurement device that calculates a blood pressure value based on the detected value of the blood vessel, the blood pressure measurement device having a plurality of cuff connection ports for connecting the flexible container, Measure the pressure at one of the cuff ports A cuff selection device for communicating with the flow channel for use is provided, the operation switch unit is provided with a cuff selection switch for selecting a cuff connection port on the cuff selection device, and the control unit And a cuff selection control function for controlling the operation of the cuff selection device in accordance with an instruction from the cuff selection switch. 2. The control unit manages a data memory for storing measurement conditions such as a pressurized value by the pressurizing pump for each cuff connection port on the cuff selecting device, and is used by the cuff selecting switch. When the cuff connection port is instructed, the measurement condition for the instructed cuff connection port is read from the data memory, and a measurement process is performed based on the measurement condition recorded in the data memory. Item 2. The blood pressure measurement device according to item 1.