JP7463448B2 - Biological information measuring device - Google Patents

Description

The present invention relates to a biometric information measuring device and system, for example, a biometric information measuring device and system such as an electrocardiograph that can be transported by a trolley.

Conventionally, there is an electrocardiograph called a multifunction electrocardiograph that has an electrocardiogram analysis function in addition to an electrocardiogram measurement function. Since the multifunction electrocardiograph has an electrocardiogram analysis function, it can obtain a judgment result on the spot where the electrocardiogram is measured, so it is used not only in hospitals but also in various places such as health checkups. Furthermore, some multifunction electrocardiographs have functions that can handle exercise stress tests and LP (Late Potential) tests. Such multifunction electrocardiographs are described, for example, in Patent Documents 1-3.

JP 2006-116207 A JP 2010-57678 A JP 2014-183978 A

Meanwhile, a multifunction electrocardiograph can be operated in one of two ways: (1) by plugging one end of the power cord into the electrocardiograph's AC inlet and then plugging the other end into an external AC outlet (e.g., a wall outlet) to run it on AC, or (2) by plugging one end of the power cord into the electrocardiograph's AC inlet and then plugging the other end into an external AC outlet to charge the battery and then run it using the battery as a power source.

Therefore, when using a multifunction electrocardiograph with AC power or charging the battery, the medical professional user must insert the power cord into the AC inlet.

In particular, because multifunction electrocardiographs are multifunctional, they generally consume more current than simple electrocardiographs, and therefore the time that they can be operated on their own battery is short, requiring frequent charging using the power cord or AC operation with the power cord plugged in. This means that users are forced to frequently plug the power cord into the AC inlet, which is very inconvenient.

Such a problem can occur widely in biological information measuring devices that can measure multiple biological information. For example, in a biological information monitor that measures and displays multiple biological information such as an electrocardiogram, blood pressure, and _SpO2 , because multiple biological information is measured and the display unit that displays the multiple biological information that is the measurement result is large, the battery life of the device is short, similar to that of a multi-function electrocardiograph, and frequent charging using a power cord or AC operation with the power cord plugged in is required, so that the user is forced to frequently plug the power cord into the AC inlet, which is very troublesome.

The present invention has been made in consideration of the above points, and provides a biometric information measuring device and system that eliminates the need for the user to plug and unplug the power cord from the AC inlet.

One aspect of the biological information measuring device of the present invention is
A circuit board on which a circuit including a biological information measurement circuit is formed;
a housing that houses the circuit board;
a power receiving coil unit provided within the housing and configured to wirelessly receive power from an external power transmitting coil unit by electromagnetic induction;
a recorder unit for recording on a recording sheet the biological information measurement results obtained by the biological information measurement circuit;
Equipped with
The power receiving coil unit is provided in the recorder unit,
The recorder unit and the power receiving coil unit are each disposed at a position offset to the side from the vital information measurement circuit.

One embodiment of the system of the present invention comprises:
A system including a biological information measuring device and a trolley capable of carrying the biological information measuring device,
A receiving coil unit provided in a housing of the biological information measuring device;
a power transmitting coil unit provided in an installation unit of the trolley on which the vital information measuring device is installed, the power transmitting coil unit wirelessly transmitting power to the power receiving coil unit by electromagnetic induction;
Equipped with:

According to the present invention, a biometric information measuring device and system can be realized that does not require the user to insert and remove the power cord from the AC inlet because power is received by the power receiving coil unit.

FIG. 1 is a perspective view showing an external configuration of a system according to an embodiment; FIG. 1 is a schematic cross-sectional view showing an internal arrangement of an electrocardiograph according to an embodiment;

Before explaining the embodiment of the present invention, we will first explain the process that led to the invention.

The inventors of the present invention have noticed that medical bioinformation measuring devices such as multifunction electrocardiographs and vital sign monitors can generally be transported on a dedicated trolley. In other words, medical bioinformation measuring devices are transported on a trolley and placed together with the trolley in a convenient location in the room where the vital sign measurement is performed.

The inventors further noted that the trolley and the vital information measuring device are provided with a positioning engagement portion that places and positions the vital information measuring device in a predetermined mounting position on the trolley to prevent the vital information measuring device from falling off the trolley and to align the recording paper (folded paper) sent to the recorder. They then considered that by making effective use of this existing positioning engagement portion, it would be possible to optimally supply power wirelessly from the trolley to the vital information measuring device.

In other words, one feature of the present invention is that a power receiving coil unit is provided in the vital information measuring device and a power transmitting coil unit is provided in the trolley, making it possible to wirelessly supply power from the trolley to the vital information measuring device by electromagnetic induction. Another feature of the present invention is that the positioning of the power receiving coil unit and the power transmitting coil unit is performed by utilizing an existing positioning engagement part.

The following describes an embodiment of the present invention with reference to the drawings.

Figure 1 is a perspective view showing the external configuration of the system of this embodiment. This embodiment is an example in which the vital sign measuring device placed on the trolley 200 is a multifunction electrocardiograph (hereinafter simply called "electrocardiograph") 100. The system 10 has the multifunction electrocardiograph 100 and the trolley 200. The electrocardiograph 100 is placed on the mounting base 210 of the trolley 200.

The electrocardiograph 100 has a display unit 110, a recorder unit 120, an operation unit 130, and the like. The electrocardiograph 100 measures a multi-lead electrocardiogram such as a 12-lead electrocardiogram. The electrocardiogram measurement results and electrocardiogram analysis results can be displayed on the display unit 110, and can also be recorded on recording paper by the recorder unit 120. The housing 140 of the electrocardiograph 100 contains a circuit board 150 (Fig. 2) on which various circuits including an electrocardiogram measurement circuit, an electrocardiogram analysis circuit, and an image processing circuit are formed, an amplifier 160 (Fig. 2), and the like.

The mounting base 210 of the trolley 200 is provided with positioning engagement parts 211 and 212 consisting of screw holes. The bottom surface of the electrocardiograph 100 is also provided with a positioning engagement part consisting of a screw hole (not shown). In practice, the screw holes on the bottom surface of the electrocardiograph 100 are provided in two rubber legs located diagonally out of four rubber legs protruding from the bottom surface of the electrocardiograph 100. Then, the electrocardiograph 100 can be positioned and fixed on the mounting base 210 by aligning the positions of the screw holes of the mounting base 210 and the electrocardiograph 100 and screwing in the screws. In the example of this embodiment, the case where the screw holes are provided as the positioning engagement parts is described, but the positioning engagement parts are not limited to screw holes. For example, the upper surface of the mounting base 210 may be provided with four engagement holes into which the four rubber legs of the electrocardiograph 100 fit, and the electrocardiograph 100 may be positioned at a predetermined position on the mounting base 210 by engaging the four rubber legs with the four engagement holes.

The mounting base 210 is also formed with a paper passage hole 213, so that recording paper such as folded paper placed on the paper base 250 is pulled into the recorder unit 120 of the electrocardiograph 100 from the bottom side of the electrocardiograph 100 through the paper passage hole 213. In addition to recording using folded paper, the electrocardiograph 100 can also record using roll paper stored in the recorder unit 120.

In addition, a cable passage hole 214 is formed at the rear end position of the mounting base 210, and cables such as a communication cable connected to the electrocardiograph 100 are pulled out below the mounting base 210 through the cable passage hole 214.

In addition, the trolley 200 is provided with a power cord 220. The power cord 220 may be one that can be inserted and removed from the AC inlet of the trolley 200, or it may be one that is fixedly pulled out from the trolley 200.

The mounting base 210 has a built-in power transmission coil unit 230 and a battery 240. Note that the power transmission coil unit 230 is always provided on the mounting base 210, but the battery 240 is not limited to being provided on the mounting base 210 and may be built into, for example, the lower part of the trolley 200 or a pillar. Power from the power cord 220 is sent to the power transmission coil unit 230 and the battery 240.

Figure 2 is a schematic cross-sectional view showing the internal arrangement of the electrocardiograph 100 of this embodiment.

The housing 140 contains a circuit board 150 and an amplifier 160. On the front side of the circuit board 150, a CPU (Central Processing Unit) 151 that executes the calculation parts of the electrocardiogram measurement circuit, electrocardiogram analysis circuit, and image processing circuit, a memory (not shown), and the like are mounted.

Furthermore, a power receiving coil unit 170 is mounted on the back side of the circuit board 150. The power receiving coil unit 170 is supplied with power wirelessly by electromagnetic induction from the power transmitting coil unit 230 of the trolley 200. The power receiving coil unit 170 is electrically connected to each circuit on the circuit board 150, the amplifier 160, the display unit 110, the recorder unit 120, the battery 180, etc. This allows the electrocardiograph 100 to operate directly using the power obtained by the power receiving coil unit 170, and also allows the battery 180 to be charged using the power obtained by the power receiving coil unit 170.

In addition, in this embodiment, the electrocardiogram measurement circuit, electrocardiogram analysis circuit, and image processing circuit are mounted on the front side of the circuit board 150, and the power receiving coil unit 170 is mounted on the back side of the circuit board 150, thereby reducing the adverse effects of noise generated by electromagnetic induction on the electrocardiogram measurement circuit, electrocardiogram analysis circuit, and image processing circuit.

Incidentally, in practice, a drive circuit (not shown) is required to cause the power transmission coil unit 230 and the receiving coil unit 170 to perform synchronous operations. In other words, the power transmission coil unit 230 and the receiving coil unit 170 each require a drive circuit. However, since the method of driving the power transmission coil unit 230 and the receiving coil unit 170 using a drive circuit is a known technology, a description thereof will be omitted here.

In the above configuration, when a user places the electrocardiograph 100 on the mounting base 210 of the trolley 200, the engaging portions provided on the mounting base 210 and the electrocardiograph 100 engage with each other, positioning the electrocardiograph 100 at a predetermined position on the mounting base 210. This positions the power transmission coil unit 230 and the power receiving coil unit 170 in opposing positions.

When the power transmission coil unit 230 is driven in this state, power is supplied to the power receiving coil unit 170 by electromagnetic induction. Incidentally, for example, a sensor may be provided to detect that the electrocardiograph 100 has been placed at a predetermined position on the mounting table 210, and the driving of the power transmission coil unit 230 may be controlled based on the detection result of this sensor. Specifically, the power transmission coil unit 230 may be driven only when the electrocardiograph 100 has been placed at a predetermined position on the mounting table 210.

Here, the trolley 200 drives the power transmission coil unit 230 with power from the power cord 220, for example, when the power cord 220 is plugged into an external AC outlet. On the other hand, the trolley 200 drives the power transmission coil unit 230 with power charged in the battery 240, for example, when the power cord 220 is not plugged into an external AC outlet. Of course, if the power transmission coil unit 230 is driven with power charged in the battery 240, the placement position of the trolley 200 can be selected without being restricted by the length of the power cord 220.

As described above, according to the configuration of this embodiment, the electrocardiograph 100 is provided with a power receiving coil unit 170 that wirelessly receives power by electromagnetic induction, so that the user can perform AC operation or charging operation by simply placing the electrocardiograph 100 on the mounting surface of the trolley 200, thereby realizing an electrocardiograph 100 that does not require the user to insert and remove the power cord from the AC inlet. As a result, the user can eliminate the trouble of inserting and removing the power cord from the AC inlet, and further, deterioration of the AC inlet due to friction and deterioration of the contacts due to rust are eliminated, leading to improved maintainability and cutting off the source of earth leakage current in the electrocardiograph, leading to safety. Furthermore, since the AC inlet can be omitted, the electrocardiograph 100 can be made smaller and lighter.

In addition, the power transmission coil unit 230 and the power receiving coil unit 170 can be aligned using the existing engagement parts already provided on the electrocardiograph 100 and the trolley 200, so good power supply by electromagnetic induction can be achieved with minimal additional configuration.

Furthermore, compared to the electrocardiograph 100, which is equipped with various electrical components, the trolley 200 has more space. Therefore, it is preferable to equip the trolley 200 with a battery 240 that has a larger capacity than the electrocardiograph 100. In this way, the frequency with which the power cord 220 is used can be reduced.

The above-described embodiments are merely examples of the implementation of the present invention, and the technical scope of the present invention should not be interpreted in a limiting manner based on these. In other words, the present invention can be implemented in various forms without departing from its gist or main characteristics.

In the above embodiment, the power receiving coil unit 170 is provided on the back side of the circuit board 150 to reduce the adverse effects of noise generated by electromagnetic induction on the electrocardiogram measurement circuit, electrocardiogram analysis circuit, and image processing circuit. However, if the power receiving coil unit 170 is provided in the recorder section 120, the power receiving coil unit 170 can be located away from the electrocardiogram measurement circuit, electrocardiogram analysis circuit, and image processing circuit, and the same effect as in the embodiment can be obtained.

In the above embodiment, the present invention is applied to the electrocardiograph 100, but the present invention can also be applied to, for example, a biological information monitor, and can be widely applied to biological information measuring devices capable of measuring multiple biological information. That is, as described above, in a biological information monitor that measures and displays multiple biological information such as an electrocardiogram, blood pressure, and _SpO2 , the time that the device can be driven by its own battery is short, and frequent charging using a power cord or AC operation with the power cord plugged in is required, as in the case of a multi-lead multifunction electrocardiograph, because multiple biological information is measured and the display unit that displays the multiple biological information that is the measurement result is large. Therefore, the user is forced to frequently plug the power cord into the AC inlet, which is a very cumbersome problem.

In particular, the present invention is suitable for use in medical biometric measuring devices that are subject to such problems and are mounted on trolleys.

The present invention has the advantage of eliminating the need for the user to plug and unplug the power cord from the AC inlet, making it suitable for use in, for example, a multifunction electrocardiograph.

REFERENCE SIGNS LIST 10 System 100 Electrocardiograph 110 Display unit 120 Recorder unit 130 Operation unit 140 Housing 150 Circuit board 151 CPU
160 Amplifier 170 Power receiving coil unit 180, 240 Battery 200 Trolley 210 Placement table 211, 212 Engagement portion 213 Paper passage hole 220 Power cord 230 Power transmitting coil unit

Claims (5)

A circuit board on which a circuit including a biological information measurement circuit is formed;
a housing that houses the circuit board;
a power receiving coil unit provided within the housing and configured to wirelessly receive power from an external power transmitting coil unit by electromagnetic induction;
a recorder unit for recording on a recording sheet the biological information measurement results obtained by the biological information measurement circuit;
Equipped with
The power receiving coil unit is provided in the recorder unit,
The recorder unit and the power receiving coil unit are each disposed at a position shifted laterally from the biological information measurement circuit.
Biometric information measuring device. A circuit board on which a circuit including a biological information measurement circuit is formed;
a housing that houses the circuit board;
a power receiving coil unit provided within the housing and configured to wirelessly receive power from an external power transmitting coil unit by electromagnetic induction;
a recorder section provided within the housing for recording on a recording sheet a result of measurement of vital information obtained by the vital information measurement circuit;
a positioning engagement portion that positions the housing at a position corresponding to a passage hole for the recording paper formed in the installation unit ;
Equipped with
When the housing is installed on the installation unit having the power transmitting coil unit and the through hole, the positioning engagement portion simultaneously positions the power receiving coil unit and the power transmitting coil unit, and positions the recorder unit and the through hole.
Biometric information measuring device. the biological information measurement circuit is mounted on a front surface side of the circuit board,
The receiving coil unit is mounted on the back side of the circuit board.
The biological information measuring device according to claim 2 . the biological information measuring device is an electrocardiograph,
The biological information measured by the biological information measurement circuit is a multi-lead electrocardiogram.
The biological information measuring device according to claim 1 . the biological information measuring device is a biological information monitor,
The vital information measured by the vital information measuring circuit includes an electrocardiogram and blood pressure.
The biological information measuring device according to claim 1 .

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