JP2023061111A - Wearable electrocardiograph - Google Patents

Abstract

To provide a wearable electrocardiographic device W in which a plurality of measuring functions can be switched.SOLUTION: A wearable electrocardiographic device W includes a plurality of types of sensor units 30 with different functions, and a body unit 10 to which any one of the plurality of types of sensor units 30 arbitrarily selected can be connected removably. The sensor unit 30 includes an electrode 35 that is brought into contact with the body of a subject and transmits a detection signal detected by the electrode 35 to the body unit 10 to which the sensor unit is connected. When any one of the plurality of types of sensor units 30 is connected, the body unit 10 automatically identifies the type of the sensor unit 30 connected to it, receives the detection signal transmitted by the sensor unit 30 connected to it, and measures electrocardiogram from the received detection signal by arithmetic processing according to the type of the identified sensor unit 30.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a wearable electrocardiogram measuring device, for example, it has a main unit to which a plurality of types of sensor units can be detachably attached, and can monitor electrocardiograms by freely changing the sensor units according to the subject. The present invention relates to a wearable electrocardiogram measuring device.

There are various types of electrocardiographs as medical devices, such as "multifunctional electrocardiograph (general-purpose electrocardiograph)", "electrocardiogram monitor", "telemetry electrocardiograph", and "long-term electrocardiographic data Recorder”, “Cardiac activity recording device”, etc.
The "multi-function electrocardiograph" is mainly used for the purpose of examining cardiac function in examinations and medical examinations. 12 ECG measurements are taken for several minutes.
An "electrocardiogram monitor" is mainly used for the purpose of detecting (monitoring) changes in condition and abnormalities, and is installed in a product called a bedside monitor and used to monitor the electrocardiogram during surgery or during hospitalization. This "electrocardiogram monitor" derives one lead from tripolar or pentapolar electrodes attached to the body surface of the subject, and while continuing to display the electrocardiogram for the selected lead for a long time, An alarm or the like is issued when an abnormality in the electrocardiogram waveform is detected.

The telemetry electrocardiograph, like the electrocardiogram monitor, is mainly used for the purpose of detecting (monitoring) changes in the patient's condition and abnormalities. ing. Many of these "telemetry type electrocardiographs" have improved portability by downsizing the electrocardiogram monitor, and the examinee has a degree of freedom in his actions, such as being able to walk around the hospital.
A “long-term electrocardiogram data recorder” is generally called a Holter electrocardiograph, and is mainly used for long-term electrocardiogram examination during daily life.
The “cardiac activity recording device” is an electrocardiograph that records an electrocardiogram by itself when the subject feels an abnormality or routine recording in a home environment. Metal electrodes are exposed, and by grasping them with both hands, I-lead electrocardiographic waveforms are acquired.

As described above, there are various types of electrocardiographs as medical devices, and the type is selected according to the intended use of the electrocardiogram. For example, for the purpose of display (monitoring), an "electrocardiogram monitor" or a "telemetry electrocardiograph" is selected, and generally a three-electrode (or five-electrode) one is used.
In the case of three electrodes, electrodes are attached to the right chest (R electrode), left chest (L electrode), and left flank (F electrode), respectively, and the electrocardiogram records potential changes between the two electrodes across the heart. By recording an electrocardiogram (II-lead electrocardiogram) between the R electrode and the F electrode, it is possible to clearly see the process in which the electrical excitation generated from the sinus node in the right atrium of the heart is transmitted to the ventricle. Arrhythmias can also be monitored. Furthermore, by applying a weak electric current to the R electrode or the F electrode, the impedance of the R electrode and the F electrode changes due to the movement of the thoracic cavity due to respiration, and by measuring this change, the respiration rate can be estimated. As described above, according to the electrocardiograph of the type in which the tripolar electrodes are attached, it is possible to measure the electrocardiogram with high precision and measure the respiration rate. An electrocardiogram measuring apparatus including a plurality of electrodes and a main unit connected to each electrode via a cord as described above is disclosed in Patent Document 1, for example.

In recent years, for display (monitoring), an electrocardiograph is used in which a device with only two electrodes is attached to the chest to measure an electrocardiogram. This electrocardiograph is collectively called a "wearable electrocardiograph", and two electrodes and a main unit (main unit) are integrated. There is an advantage that the restraint to the subject is low and the burden on the subject is small.
Many of these "wearable electrocardiographs" do not have a display device, and the measured information is transferred to smart devices such as smartphones and tablets by wireless communication, and the heart rate and electrocardiogram are displayed wirelessly. .

JP 2018-510013 A

However, conventional wearable electrocardiographs generally cannot place two electrodes across the heart, so they only measure the timing at which the ventricle begins to move, and the electrical excitation of the heart is clearly visible. There is a problem that it is not possible to record to Therefore, the conventional "wearable electrocardiograph" cannot measure a clear electrocardiogram waveform, and is unsuitable for monitoring the electrocardiogram waveform.
In addition, the conventional "wearable electrocardiograph" has the problem that it is difficult to estimate respiration because the two electrodes are not placed across the chest cavity.
As described above, the "wearable electrocardiograph" of the prior art has a sufficient function to monitor only the heart rate, but cannot perform a function to monitor the electrocardiogram waveform and the respiratory rate.

For this reason, many medical institutions are equipped with not only "wearable electrocardiographs" but also "electrocardiogram monitors" and "telemetry electrocardiographs," depending on the patient's physical condition and information to be monitored. Depending on the situation, different types of electrocardiographs are used. For example, if an abnormal value is detected when measuring the electrocardiogram with a "wearable electrocardiograph", the electrocardiogram is measured again with high accuracy using an "electrocardiogram monitor" or a "telemetry electrocardiograph". is also being done. In addition, some patients can only attach electrodes to their hands, and in such cases, some medical institutions prepare "electrocardiogram monitors" having clip-type electrodes to attach electrodes to both hands.
As described above, currently, many medical institutions use a plurality of types of electrocardiographs, which poses a problem of increased costs (the cost of the device itself and the management cost).
Electrocardiograms and heartbeats of subjects are also measured not only in medical institutions but also in home care and nursing care. In this case as well, if you want to monitor only your heart rate, a "wearable electrocardiograph" is sufficient, but if you need to monitor the electrocardiogram waveform and respiratory rate, you can use the "electrocardiogram monitor" or "telemetry" installed at medical institutions. A full-fledged device such as an electrocardiograph is required. In the field of home care and nursing care, when electrocardiographs with multiple functions are provided, the same problem as in medical institutions arises in that the cost increases. In particular, it is not realistic to provide electrocardiographs with multiple types of functions at home, as in medical institutions, due to cost and installation space requirements.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a wearable electrocardiographic measuring device capable of switching between a plurality of measuring functions.

The present invention for solving the above problems comprises a plurality of types of sensor units with different functions, and a body unit to which any one of the plurality of types of sensor units can be arbitrarily selected and detachably connected. A wearable electrocardiographic measuring device worn by a subject with the body unit connected to the unit, wherein the sensor unit has and is connected to electrodes that are brought into contact with the body of the subject. A detection signal detected by the electrodes is transmitted to the body unit, and the body unit is connected to itself when one of the plurality of types of sensor units is connected. The type of the sensor unit is automatically identified, the detection signal transmitted by the connected sensor unit is received, and arithmetic processing according to the type of the identified sensor unit is performed to extract the electrocardiogram from the received detection signal. It is characterized in that it is designed to measure

Thus, according to the configuration of the present invention, any one of a plurality of types of sensor units having different functions is arbitrarily selected, detachably connected to the main unit, and attached to the subject's body. ECG can be measured by
Therefore, medical institutions and the like do not need to prepare and manage multiple types of electrocardiographic measuring devices with different functions, so the costs of the medical institutions and the like (costs of the devices themselves and management costs) can be reduced.
In addition, according to the configuration of the present invention, the function of measuring biological information including "electrocardiogram waveform and respiratory rate" required by medical institutions and the biological information such as "heart rate" widely used in the home and nursing care areas can be provided in the same wearable device that imposes less burden on the subject.
According to the present invention, for example, if a spare main unit is prepared, even if the battery runs out or the main unit breaks down, the main unit can be easily replaced to replace the battery. Able to handle failures.

Further, according to the present invention, when a sensor unit is connected to the main unit, the main unit automatically identifies the type of the sensor unit, and performs arithmetic processing according to the type of the identified sensor unit. An electrocardiogram is calculated from the detected detection signal.
Therefore, a user such as a doctor or a nurse can connect a desired sensor unit to the main unit or replace the connected sensor unit according to the physical condition of the subject or information to be monitored. With a simple operation, the electrocardiogram can be measured by attaching the device to the subject's body without troublesome setting work.

Further, a connector portion connecting the main body unit and the sensor unit is provided with an identification pin for identifying the sensor unit. It is desirable that the connection state of the identification pin is different, and that the body unit identifies the type of the sensor unit connected thereto based on the connection state of the identification pin of the connector portion.

Further, the plurality of types of sensor units include a three-electrode/cable-type sensor unit having three electrodes, a two-electrode/cable-type sensor unit having two electrodes, and a patch having two electrodes. and a clip-type sensor unit having two electrodes. The two-electrode/cable sensor is connected by electric wires so that it can be adjusted and placed at any position on both sides and one electrode can be adjusted and placed at any position on the abdominal side of the subject. The unit is connected by wires so that the two electrodes can be adjusted and placed at arbitrary positions on the chest side and the abdomen side across the heart of the subject, and the patch-type sensor unit has two electrodes. The clip-type sensor units are arranged in a position close to each other and separated by a predetermined distance, and the clip-type sensor units are a pair of clips that hold both the left and right wrists of the subject, and a pair of the clips. When the clip clamps both wrists of the subject, the electrodes are pressed against the wrists and kept in contact with each other. desirable.

The patch-type sensor unit includes a first patch-type sensor unit and a second patch-type sensor unit, and the first patch-type sensor unit is attached to the main unit. A base on which a detachably connected first electrode unit, two electrodes detachably and electrically connected to the first electrode unit, and the body unit attached to the first electrode unit are placed. The second patch-type sensor unit includes a second electrode unit detachably connected to the main body unit, and the main body unit attached to the second electrode unit is placed thereon. The base sheet integrated electrode includes a base sheet portion formed of an insulating material and sheet-like sheet-like electrodes formed at both left and right ends of the base sheet portion. The conductive gel portions on the left and right ends form a pair of electrodes, the main body portion is placed on the base sheet portion, and the electrode unit includes the conductive gel portion. preferably electrically connected to the

According to the present invention, it is possible to provide a wearable electrocardiographic measurement device capable of switching between a plurality of measurement functions.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the appearance of a wearable electrocardiographic measuring device according to an embodiment of the present invention, and FIG. 1A is a schematic diagram showing the wearable electrocardiographic measuring device to which a three-electrode/cable type sensor unit is attached; , (b) is a schematic diagram showing a wearable electrocardiographic measuring device to which a two-electrode/cable sensor unit is attached, and (c) is a wearable electrocardiographic measuring device to which a patch-type sensor unit is attached. FIG. 4D is a schematic diagram showing a wearable electrocardiographic measuring device to which a clip-type sensor unit is attached. FIG. 2 is a schematic diagram showing a state in which the wearable electrocardiographic measurement device according to the embodiment of the present invention is worn by a subject; FIG. FIG. 4 is a schematic diagram showing a state in which the device is worn by a subject, and (b) is a state in which a wearable electrocardiographic measurement device to which a two-electrode/cable sensor unit is attached is worn by the subject. (c) is a schematic diagram showing a state in which a wearable electrocardiographic measurement device to which a patch-type sensor unit is attached is worn by a subject, and (d) is a clip-type FIG. 2 is a schematic diagram showing a state in which a wearable electrocardiogram measuring device to which a sensor unit is attached is worn by a subject. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a wearable electrocardiographic measuring device to which a three-electrode/cable-type sensor unit according to an embodiment of the present invention is attached, viewed obliquely from above; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded schematic view showing components of a wearable electrocardiographic measuring device to which a three-electrode/cable-type sensor unit according to an embodiment of the present invention is attached; FIG. 2 is a schematic diagram showing the components of the body unit that constitutes the wearable electrocardiographic measurement device according to the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a wearable electrocardiographic measuring device to which a two-electrode/cable-type sensor unit according to an embodiment of the present invention is attached, viewed obliquely from above; FIG. 2 is a schematic view showing the components of the wearable electrocardiographic measuring device to which the two-electrode/cable-type sensor unit according to the embodiment of the present invention is attached. 1 is a schematic diagram of a wearable electrocardiographic measuring device to which a patch-type sensor unit according to an embodiment of the present invention is attached, viewed obliquely from above; FIG. FIG. 2 is a schematic diagram showing components of a wearable electrocardiographic measuring device to which a patch-type sensor unit according to an embodiment of the present invention is attached. 1 is a schematic diagram of a wearable electrocardiographic measuring device to which a clip-type sensor unit according to an embodiment of the present invention is attached, viewed obliquely from above; FIG. FIG. 2 is a schematic diagram showing the components of the wearable electrocardiographic measuring device to which the clip-type sensor unit of the embodiment of the present invention is attached. 1 is a schematic diagram showing a functional block diagram of a wearable electrocardiograph according to an embodiment of the present invention; FIG. FIG. 4 is a schematic diagram showing the relationship between the pin assignments of the sensor unit and the pin assignments of the main unit of the wearable electrocardiogram measuring device according to the embodiment of the present invention; FIG. 4A is a schematic diagram for explaining the connection state of pins for identifying the sensor unit to which the body unit of the wearable electrocardiogram measuring device according to the embodiment of the present invention is connected, and FIG. - It is a schematic diagram showing the connection relationship of the pins when the cable-type sensor unit is connected, and (b) is the pin connection when the two-electrode/cable-type sensor unit is connected to the main unit. FIG. 4 is a schematic diagram showing the relationship, where (c) is a schematic diagram showing the connection relationship in a state where the patch-type sensor unit is connected to the main unit, and (d) is a schematic diagram showing the clip-type sensor unit connected to the main unit. is a schematic diagram showing a connection relationship in a state in which are connected. FIG. 4 is a schematic diagram for explaining the connection state of identification pins for identifying the sensor unit of the wearable electrocardiographic measurement device according to the embodiment of the present invention; FIG. 10 is a schematic diagram of a wearable electrocardiogram measuring device to which a modification of the patch-type sensor unit shown in FIG. 9 is attached, as viewed obliquely from above; FIG. 10 is a schematic diagram showing components of a wearable electrocardiographic measuring device to which a modification of the patch-type sensor unit shown in FIG. 9 is attached. FIG. 10 is a schematic diagram for explaining an electrode unit constituting a modification of the patch-type sensor unit shown in FIG. 9;

A wearable electrocardiographic measuring device according to an embodiment of the present invention will be described below with reference to the drawings.

First, a schematic configuration of a wearable electrocardiographic measurement device according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

<Schematic configuration of wearable electrocardiogram measuring device W>
As shown in FIGS. 1 and 2, the wearable electrocardiographic measuring device (hereinafter simply referred to as “electrocardiographic measuring device”) W of this embodiment includes a plurality of types of sensor units 30 (30a, 30b, 30c, 30d) having different functions. ) and a body unit 10 to which a plurality of types of sensor units 30 can be arbitrarily selected and detachably connected. It's becoming

Further, when one of the plurality of types of sensor units 30 is connected, the body unit 10 automatically identifies (determines) the type of the sensor unit 30 connected to itself, and determines the type of the identified sensor unit 30. The electrocardiogram or the like is measured from the received detection signal by arithmetic processing according to the type.
As will be described later, reference numeral 25 shown in FIG. 1 indicates a foam cover covering the main unit 10, and reference numerals 35 (35a, 35d) indicate electrodes.

A user such as a doctor or a nurse selects one of the plurality of types of sensor units 30 (30a, 30b, 30c, 30d) according to the physical condition of the subject and the measurement value to be measured. , the selected sensor unit 30 is connected to the main unit 10 (see FIG. 1), and as shown in FIG. It is designed to be worn to monitor the electrocardiogram.

Here, FIG. 1A shows an electrocardiograph in which a "three-electrode/cable-type sensor unit 30a" having three electrodes (R electrode, L electrode, F electrode) 35a is connected to the main unit 10. W is shown.
As shown in FIG. 2(a), the electrocardiograph W has two electrodes (R electrode, L electrode) 35a affixed to the left and right sides of the subject's chest straddling the heart. Then, one electrode (F electrode) 35a is attached to a lower position (abdominal side position) than the two electrodes (R electrode, L electrode) 35a and brought into contact with the "electrocardiogram (electrocardiogram) Waveform (electrocardiographic lead switchable), heart rate, respiratory curve and respiratory rate" can be measured.

FIG. 1(b) shows an electrocardiograph W in which a "two-electrode/cable-type sensor unit 35b" having two electrodes (R electrode, L electrode) is connected to the main unit 10. .
As shown in FIG. 2(b), the electrocardiogram measuring apparatus W has two electrodes (R electrode, L electrode) positioned on the right side of the subject above the chest and on the left side of the subject's abdomen. ) 35a is affixed and brought into contact, it is possible to measure "electrocardiogram (electrocardiogram waveform (electrocardiographic lead switching not possible)), heart rate, respiratory curve, and respiratory rate".

FIG. 1(c) shows an electrocardiograph W in which a "patch-type sensor unit 30c" having two electrodes (R electrode, L electrode) is connected to the main unit 10. FIG.
As shown in FIG. 2(c), this electrocardiograph W has two electrodes (R electrode, L electrode) 35a affixed to the right side of the subject's chest. Electrocardiogram (electrocardiogram waveform (electrocardiogram lead switching not possible)) and heart rate” can be measured.

FIG. 1(d) shows an electrocardiographic measuring apparatus W in which a “clip-type sensor unit 30d” having two electrodes (R electrode, L electrode) is connected to the main unit 10 .
As shown in FIG. 2(d), the electrocardiograph W is configured such that the left and right wrists of the subject are clipped with electrodes 35d, and the electrodes 35d are brought into contact with the left and right wrists of the subject. ``Electrocardiogram (electrocardiogram waveform (not switchable to electrocardiogram lead)) and heart rate'' can be measured.

Next, the configuration of the electrocardiographic measurement apparatus W of this embodiment will be described in detail.

<Electrocardiogram measurement device W to which 3-electrode/cable type sensor unit 30a is connected>
First, the electrocardiogram measurement apparatus W to which the "three-electrode/cable type sensor unit 30a" is connected will be described with reference to FIGS. 3 to 5. FIG.
Here, FIG. 3 is a schematic view of the electrocardiographic measuring apparatus to which the three-electrode/cable-type sensor unit of the present embodiment is attached, as viewed obliquely from above. FIG. 4 is a schematic diagram showing the components of an electrocardiographic measuring apparatus to which the three-electrode/cable-type sensor unit according to the present embodiment is attached. FIG. 5 is a schematic diagram showing the components of the body unit that constitutes the wearable electrocardiogram measuring device of this embodiment.

As shown in FIGS. 3 and 4, an electrocardiographic measuring apparatus W equipped with a three-electrode/cable-type sensor unit 30a according to the present embodiment includes a sensor unit 30a having three electrodes 35a and a A body unit 10 to be connected and a foam cover 25 covering the body unit 10 are provided.
The foam cover 25 is formed in the shape of a box with an open bottom, and is fitted onto the main unit 10 to cover the top surface and side surfaces (front, back, left, and right side surfaces) of the main unit 10 . ing.

4, the sensor unit 30a includes an electrode unit 33a detachably connected to the main body unit 10, three electrodes 35a detachably connected to the electrode unit 33a, and an electrode unit 35a attached to the electrode unit 33a. and a base sheet 37 on which the main unit 10 is placed.
In this sensor unit 30a, two electrodes 35a can be adjusted and arranged at arbitrary positions on the chest and left and right sides of the subject's heart, and one electrode 35a can be arranged at an arbitrary position on the abdomen side of the subject. It is connected with an electric wire (cable) so that it can be adjusted and placed in any position.
The electrode 35a is formed in a sheet shape, and a commercially available one having a protruding male snap (connector member) 35b at the center of one surface can be used. The illustrated electrode 35a has a male snap (connector member) 35b formed on one side of a sheet-like conductive adhesive gel. For the electrode 35a, for example, "Monitoring Electrode 2228" manufactured by 3M Japan Limited can be used.

The electrode unit 33a includes a first connection portion 33a1 to which the electrode 35a is attached, a second connection portion 33a2 to which the electrode 35a is attached, and a third connection portion 33a3 to which the electrode 35a is attached, and is detachably attached to the main unit 10. and a connector portion 36 to be connected.
The first connection portion 33a1 is connected to the second connection portion 33a2 via a bendable connection arm 34a, and is connected to the third connection portion 33a3 via a bendable connection arm 34b. Also, the first connection portion 33a1 is connected to the connector portion 36 via the connection arm 34c.
In addition, the connector portion 36 is electrically connected to each connection portion (first connection portion 33a1, second connection portion 33a2, third connection portion 33a3).

The connection arm 34a connecting the first connection portion 33a1 and the second connection portion 33a2 has an electrode 35a attached to the first connection portion 33a1 and an electrode 35a attached to the second connection portion 33a2. It is designed with a length dimension that can be placed on the left and right sides of the chest across the heart of a person. For example, by bending the connection arm 34a, the distance between the electrode 35a attached to the first connection portion 33a1 and the electrode 35a attached to the second connection portion 33a2 is set to "10 to 20 cm". It is adjustable.
Further, the connection arm 34b that connects the first connection portion 33a1 and the third connection portion 33a3 has a The electrode 35a attached to the third connecting portion 33a3 is designed to have a length dimension that allows it to be placed on the left side of the subject's abdomen. For example, by bending the connection arm 34b, the distance between the electrode 35a attached to the first connection portion 33a1 and the electrode 35a attached to the third connection portion 33a3 is set to "10 to 20 cm". It is adjustable.
Since the connector portion 36 is designed to be arranged close to the first connection portion 33a1, the connection arm 34c connecting the first connection portion 33a1 and the connector portion 36 has a length dimension shorter than that of the connection arms 34a and 34b. (For example, the length dimension is “2 to 3 cm”).

The first connecting portion 33a1 includes a housing made of an insulating material such as a synthetic resin material, and a female snap (connection) into which the male snap 35b of the electrode 35a is detachably inserted into the housing. terminals (not shown)). By inserting the male snap 35b of the electrode 35a into the female snap (connection terminal) of the first connection portion 33a1, the female snap (connection terminal) of the first connection portion 33a1 and the electrode 35a are electrically connected. Connected.

The second connection portion 33a2 and the third connection portion 33a3 are provided with a housing made of an insulating material such as a synthetic resin material. female snaps (connecting terminals (not shown)) that Then, by inserting the male snap 35b of the electrode 35a into the female snap (connection terminal) of the second connection portion 33a2 (or the third connection portion 33a3), the second connection portion 33a2 (or the third connection portion 33a3) ) and the electrode 35a are electrically connected.

The connector section 36 includes a hollow box-shaped housing, a sensor unit specific board 39 (see FIG. 12) installed inside the housing, and a sensor unit specific board 39 provided on one surface (upper surface) of the housing. and a spring pin (connection) electrically connected to the The sensor unit 30a and the main unit 10 are electrically connected by detachably connecting the spring pin (connecting portion) to a contact (connecting portion) provided on the main unit 10. FIG.
As will be described later, the spring pin (connecting part) has "R pin, L pin, F pin, A pin, B pin, VCC pin, GND pin", and "R pin, L pin, F pin". pins” are electrically connected to the electrodes 35a (connection portions (first, second and third connection portions 33a1, 33a2, 33a3) to which the electrodes 35a are connected), and “A pin, B pin, VCC GND pin” is electrically connected to the sensor unit specific board 39 (see FIG. 13). In addition, “A pin, B pin” are identification pins for identifying the sensor unit 30 .

Each of the connection arms 34a, 34b, and 34c has a tube-shaped circular tube portion made of an insulating material such as synthetic resin. Each electrode 35a and the connector portion 36 are electrically connected via female snaps (connection terminals) of the portions (first connection portion 33a1, second connection portion 33a2, third connection portion 33a3). It's becoming

Further, the base sheet 37 is formed with a through hole 37a through which the male snap 35b of the electrode 35a is inserted.
Then, on the upper surface of the base sheet 37, the main unit 10 and the "first connection portion 33a1, connection arm 34c, and connector portion 36" of the sensor unit 30a connected to the main unit 10 are placed. Further, the electrode 35a connected to the first connection portion 33a1 is positioned on the back side of the base sheet 37, and the male snap 35b is arranged so as to pass through the through hole 37a of the base sheet 37. .

As shown in FIG. 5, the main unit 10 includes a substantially rectangular box-shaped case portion 100. Inside the case portion 100 are a main substrate 101 and a display portion (OLED (Organic Light-Emitting Diode)). 114 and an operation unit (tact switch) 115 mounted thereon, and a chassis 103 provided on the main board 101 and supporting the sub board 102 are accommodated.
In addition, a battery (power supply unit) 119 that supplies power to the electrocardiograph W is housed below the case portion 100 so as to be replaceable with respect to the case portion 100 .

A connector unit (connector portion) 116 electrically connected to the sensor units 30 (30a, 30b, 30c, 30d) is provided on the bottom side of the case portion 100. As shown in FIG. The connector portion 116 has contacts for detachably connecting to the spring pins of the connector portion 36 of the sensor units 30 (30a, 30b, 30c, 30d). Note that the connector portion 116 is electrically connected to the main board 101 .

The case part 100 includes a hollow box-shaped lower case 100a with an open upper surface, a substantially plate-shaped upper case 100b covering the upper side of the lower case, and a battery exchange port provided on the lower surface of the lower case 100a. A substantially plate-shaped battery cover 100c for opening and closing is provided.
The upper case 100b is provided with openings 100b1 and 100b2 for exposing the display section 114 and the operation section 115 on its upper surface.
Further, the case portion 100 is provided with a plate-shaped nameplate (embossed switch portion) 100d that closes "the display portion 114 exposed from the opening portion 100b1 and the operation portion 115 exposed from the opening portion 100b2." .

The main substrate 100 is equipped with a CPU, memory (main storage device, auxiliary storage device), etc., and identifies the type of the sensor unit 30 connected to the connector section 116, and detects the sensor unit 30. A detection signal is acquired, and processing for calculating an electrocardiogram from the acquired detection signal is performed by arithmetic processing according to the type of the identified sensor unit 30 .
The main board 101 is electrically connected to the sub-board 102, displays an operation screen on the display unit 114 on the sub-board 102, and receives various operation requests from the operation unit 115 of the sub-board 102. . The main board 101 also displays the electrocardiographic value obtained by the arithmetic processing on the display unit 114 .

<Electrocardiogram measurement device W to which two-electrode/cable-type sensor unit 30b is connected>
Next, the electrocardiogram measurement apparatus W to which the "two-electrode/cable type sensor unit 30b" is connected will be described with reference to FIGS.
Here, FIG. 6 is a schematic view of the electrocardiographic measuring apparatus to which the two-electrode/cable-type sensor unit according to the present embodiment is attached, viewed obliquely from above. FIG. 7 is a schematic view showing the components of a wearable electrocardiographic measuring device to which the two-electrode/cable-type sensor unit of the present embodiment is attached.

As shown in FIGS. 6 and 7, an electrocardiograph W to which the two-electrode/cable-type sensor unit 30b of the present embodiment is attached includes a sensor unit 30b having two electrodes 35a and a A body unit 10 to be connected and a foam cover 25 covering the body unit 10 are provided.
The main unit 10 and foam cover 25 are the same as those described above with reference to FIGS.

7, the sensor unit 30b includes an electrode unit 33b detachably connected to the main body unit 10, two electrodes 35a detachably connected to the electrode unit 33b, and an electrode unit 33b attached to the electrode unit 33b. and a base sheet 37 on which the main unit 10 is placed.
The sensor unit 30b is connected by electric wires so that the two electrodes 35a can be adjusted and placed at arbitrary positions on the chest and abdomen straddling the heart of the subject.
Note that the base sheet 37 is the same as that described above with reference to FIGS.

Further, the electrode unit 33b has a first connection portion 33b1 to which the electrode 35a is attached, a second connection portion 33b2 to which the electrode 35a is attached, and a connector portion 36 detachably connected to the main unit 10. .
The first connection portion 33b1 is connected to the second connection portion 33b2 via a bendable connection arm 34d. Also, the first connection portion 33b1 is connected to the connector portion 36 via the connection arm 34e.
Further, the connector portion 36 is electrically connected to each connection portion (first connection portion 33b1, second connection portion 33b2).

The connection arm 34d that connects the first connection portion 33b1 and the second connection portion 33b2 has an electrode 35a attached to the first connection portion 33b1 and an electrode 35a attached to the second connection portion 33b2. It is designed with a length dimension that can be placed on the chest and abdomen across the heart of a person. For example, by bending the connection arm 34a, the distance between the electrode 35a attached to the first connection portion 33b1 and the electrode 35a attached to the second connection portion 33b2 is "10 to 20 cm". can be adjusted to
Since the connector portion 36 is designed to be arranged close to the first connection portion 33b1, the connection arm 34d that connects the first connection portion 33b1 and the connector portion 36 has a length dimension shorter than that of the connection arm 34c (for example, "2 to 3 cm" length dimension).

The first connecting portion 33b1 has a housing made of an insulating material such as a synthetic resin material, and a female snap (connection) into which the male snap 35b of the electrode 35a is detachably inserted into the housing. terminals (not shown)). By inserting the male snap 35b of the electrode 35a into the female snap (connection terminal) of the first connection portion 33b1, the female snap (connection terminal) of the first connection portion 33b1 and the electrode 35a are electrically connected. Connected.

The second connection portion 33b2 has a housing made of an insulating material such as a synthetic resin material, and a female snap (connection) into which the male snap 35b of the electrode 35a is detachably inserted into the housing. terminals (not shown)). By inserting the male snap 35b of the electrode 35a into the female snap (connection terminal) of the second connection portion 33b2, the second connection portion 33b2 and the electrode 35a are electrically connected.

Further, the spring pins (connecting portions) of the connector portion 36 (not shown) have "R pin, L pin, F pin, A pin, B pin, VCC pin, GND pin" and "R pin, L pin". are electrically connected to the electrode 35a (connection portions (first and second connection portions 33b1, 33b2) connected to the electrode 35a), and "A pin, B pin, VCC pin, and GND pin" are connected to It is electrically connected to the sensor unit specific board 39 (see FIGS. 12 and 13). In addition, “A pin, B pin” are identification pins for identifying the sensor unit 30 .

The connection arms 34d and 34e each have a tube-shaped circular pipe portion made of an insulating material such as a synthetic resin material, and an electric wire is wired inside the circular pipe portion. Each electrode 35a is electrically connected to the connector portion 36 via female snaps (connection terminals) of the first connection portion 33b1 and the second connection portion 33b2).

Further, on the upper surface of the base sheet 37, the main body unit 10 and the "first connection portion 33b1, the connection arm 34e, and the connector portion 36" of the sensor unit 30b connected to the main body unit 10 are placed. The electrode 35a connected to the first connecting portion 33b1 is positioned on the back side of the base sheet 37, and the male snap 35b is arranged to pass through the through hole 37a of the base sheet 37. there is

<Electrocardiogram measurement device W to which patch-type sensor unit 30c is connected>
Next, the electrocardiogram measurement apparatus W to which the "patch-type sensor unit 30c" is connected will be described with reference to FIGS.
Here, FIG. 8 is a schematic diagram of an electrocardiographic measurement apparatus to which the patch-type sensor unit of the present embodiment is attached, viewed obliquely from above. FIG. 9 is a schematic view showing components of an electrocardiogram measuring apparatus to which the patch-type sensor unit of the present embodiment is attached.

As shown in FIGS. 8 and 9, the electrocardiograph W includes a "patch-type sensor unit 30c" having two electrodes 35a, a main unit 10 detachably connected to the sensor unit 30c, and a main unit 10. and a foam cover 25 covering the
The patch-type sensor unit 30c is arranged such that the two electrodes 35a are close to each other and separated by a predetermined distance. Moreover, the patch-type sensor unit 30c has a compact shape in which the two electrodes 35a are arranged close to each other, compared to the two-electrode/cable-type sensor unit 30b. , a part (about half) of the two electrodes 35a of the sensor unit 30c are arranged so as to overlap with each other on the lower side of the main unit 10. As shown in FIG.
The main unit 10 and foam cover 25 are the same as those described above with reference to FIGS.

Specifically, as shown in FIG. 9, the sensor unit 30c includes an electrode unit 33c detachably connected to the main body unit 10, two electrodes 35a detachably connected to the electrode unit 33c, and an electrode unit 33c and a base sheet 38 on which the main unit 10 is placed.

Further, the electrode unit 33c has a first connection portion 33c1 to which the electrode 35a is attached, a second connection portion 33c2 to which the electrode 35a is attached, and a connector portion 36 detachably connected to the main unit 10. .
The first connection portion 33c1 is connected to the connector portion 36 via the connection arm 34f. Also, the second connection portion 33c1 is connected to the connector portion 36 via the connection arm 34g.

The connection arm 34f that connects the first connection portion 33c1 and the connector portion 36 is positioned such that a portion of the electrode 35a attached to the first connection portion 33c1 overlaps the main unit 10 attached to the connector portion 36 on the lower side. It is designed with a length dimension that allows it to be placed in For example, the connecting arm 34f can be adjusted to a length of "2 to 3 cm" by bending.
Further, the connection arm 34g that connects the second connection portion 33c2 and the connector portion 36 is positioned such that a portion of the electrode 35a attached to the second connection portion 33c2 overlaps the main unit 10 attached to the connector portion 36 on the lower side. It is designed with a length dimension that allows it to be placed in For example, the connecting arm 34f can be adjusted to a length of "2 to 3 cm" by bending.

The first connecting portion 33c1 (second connecting portion 33c2) has a housing made of an insulating material such as synthetic resin, and the male snap 35b of the electrode 35a is detachably inserted into the housing. It accommodates a female snap (connection terminal (not shown)) to be attached. By inserting the male snap 35b of the electrode 35a into the female snap (connection terminal) of the first connection portion 33c1 (second connection portion 33c2), the first connection portion 33c1 (second connection portion 33c2) is The female snap (connection terminal) and the electrode 35a are electrically connected.

The spring pins (connecting portions) of the connector portion 36 (not shown) have "R pin, L pin, F pin, A pin, B pin, VCC pin, GND pin" and "R pin, L pin". are electrically connected to the electrode 35a (connection portions (first and second connection portions 33c1, 33c2) connected to the electrode 35a), and "A pin, B pin, VCC pin, and GND pin" are electrically connected to It is electrically connected to the sensor unit specific board 39 (see FIGS. 12 and 13). In addition, “A pin, B pin” are identification pins for identifying the sensor unit 30 .

The connection arms 34f and 34g each have a tube-shaped circular tube portion made of an insulating material such as a synthetic resin material, and an electric wire is wired inside the circular tube portion. Each electrode 35a is electrically connected to the connector portion 36 via female snaps (connection terminals) of the first connection portion 33c1 and the second connection portion 33c2.

The base sheet 38 is formed with a pair of through holes 38a through which the male snaps 35b of the electrodes 35a are inserted.
Then, on the upper surface of the base sheet 38, the main body unit 10 and the components other than the electrodes 35a of the electrode unit 33c connected to the main body unit 10 are placed. The electrodes 35a of the electrode unit 33c are positioned on the back side of the base sheet 38, and the male snaps 35b are arranged so as to pass through the through holes 38a of the base sheet 38. As shown in FIG.

<Electrocardiogram measuring device W to which clip type sensor unit 30d is connected>
Next, the electrocardiogram measurement apparatus W to which the "clip-type sensor unit 30d" is connected will be described with reference to FIGS.
Here, FIG. 10 is a schematic view of the electrocardiographic measuring apparatus to which the clip-type sensor unit of the present embodiment is attached, as viewed obliquely from above. FIG. 11 is a schematic view showing the components of an electrocardiographic measurement apparatus to which the clip-type sensor unit of this embodiment is attached.

As shown in FIGS. 10 and 11, the electrocardiograph W includes a "clip-type sensor unit 30d" having two electrodes 35d, and a main unit 10 detachably connected to the sensor unit 30d. .
The clip-type sensor unit 30d includes a pair of clips 40 that hold the left and right wrists of the subject, and electrodes 35d attached to the clips 40. The clips 40 grip the subject's wrists. When held between the wrists, the electrodes 35d are pressed against the wrists and the contact state is maintained.

Specifically, as shown in FIG. 11, the sensor unit 30d includes a pair of clips 40, an electrode 35d attached to one clip 40, an electrode 35d attached to the other clip 40, and an electrode 35d attached to the other clip 40. A holder portion 41 provided on the outer side, a connector portion 36 attached to the holder portion 41, a connection arm 34i electrically connecting one electrode 35d and the connector portion 36, and the other electrode 35d and the connector portion. and a connecting arm 34h for electrically connecting to 36.

A connecting arm 34i connecting the connector portion 36 and one electrode 35d has a length of about several centimeters (2 to 3 cm''). Also, the connecting arm 34h connecting the connector portion 36 and the other electrode 35d has a length dimension (for example, "30 to 40 cm") that allows the pair of clips 40 to be placed between the left and right wrists. .

The clip 40 has "a pair of gripping pieces 40a and 40b" for gripping the wrist. plate-like electrode 35d is attached.

A holder portion 41 is provided on the outside of the holding piece 40 a of one clip 40 . The holder portion 41 includes a plate-like bottom portion 41a and a pair of support pieces 41b, 41b extending from both upper and lower ends of the bottom portion 41a in a direction substantially perpendicular to the bottom portion 41a. A connector portion 36 is attached to the . When the connector unit 116 of the main body unit 10 is attached to the connector part 36, the upper and lower surfaces of the main body unit 10 are supported by the pair of support pieces 41b, 41b.

Next, the functional configuration of the wearable electrocardiogram measuring device W of this embodiment will be described with reference to FIGS. 12 to 15. FIG.

FIG. 12 is a schematic diagram showing a functional block diagram of the electrocardiogram measuring apparatus of this embodiment. FIG. 13 is a schematic diagram showing the relationship between the pin assignments of the sensor unit and the pin assignments of the main unit of the electrocardiogram measuring apparatus of this embodiment. 14A and 14B are schematic diagrams for explaining the connection state of pins for identifying the sensor unit to which the main unit of the wearable electrocardiographic measurement device of the present embodiment is connected. FIG. 3 is a schematic diagram showing the connection relationship of pins when a three-electrode/cable-type sensor unit is connected, and FIG. (c) is a schematic diagram showing the connection relationship in a state in which a patch-type sensor unit is connected to the main unit; (d) is a schematic diagram showing the connection relationship of a clip-type sensor unit connected to the main unit FIG. 4 is a schematic diagram showing a connection relationship in a state where sensor units are connected; FIG. 15 is a schematic diagram for explaining the connection state of identification pins for identifying the sensor units of the wearable electrocardiogram measuring device of this embodiment.

<Functional configuration of electrocardiogram measuring device W>
As shown in FIG. 12, the main unit 10 of the electrocardiogram measuring apparatus W includes a device control unit 110, a sensor unit identification unit 111, an electrocardiogram measurement unit 112, a first external communication unit (USB) 113, and a display unit. 114 , an operation unit 115 , a connector unit (connector unit) 116 , a second external communication unit (BLE (Bluetooth Low Energy)) 117 , and an electrocardiographic waveform recording unit 118 .
The first external communication unit 113 is a communication unit that exchanges data with an external device by wire. It transmits data and receives various information from the PC 50 or the like.
The second external communication unit 117 is a communication unit that wirelessly exchanges data with an external device, and transmits measured data such as an electrocardiogram to the PC 50 or the tablet terminal 60, or receives various information from the PC 50 or the tablet terminal 60. receive.

The electrocardiographic electrode connector section 120 is composed of the connector section 116 on the main unit 10 side and the connector section 36 on the sensor unit 30 side. It functions as the electrode connector section 120 .
13, the connector portion 116 of the electrocardiographic electrode connector portion 120 on the main unit 10 side has "R pin, L pin, F pin, A pin, B pin, VCC pin, and GND pin". are doing. Similarly to the connector unit 116, the connector section 36 on the sensor unit 30a side has "R pin, L pin, F pin, A pin, B pin, VCC pin, and GND pin".

The connector section 36 of the sensor unit 30 has three electrodes, and "R pin, L pin, and F pin" are connected to each electrode 35, and "A pin, B pin, VCC pin, and GND pin" are connected. are connected to the sensor unit specific substrate 39 , and “A pin, B pin” are identification pins for identifying the sensor unit 30 .
In addition, the connector portion 36 of the sensor unit 30 has two electrodes, and the "R pin, L pin" is connected to each electrode 35, and the F pin and the L pin are short-circuited, so that the "A pin, B pin, VCC pin, GND pin” are connected to the sensor unit specific board 39 .
Further, in the sensor unit 30, the "A pin, B pin, VCC pin, and GND pin" of the connector section 36 are set to the states shown in FIGS. , are connected to the sensor unit specific board 39 .

Specifically, as shown in FIG. 14A, in the three-electrode/cable sensor unit 30a, the "A pin and B pin" of the connector section 36 are both connected to the "GND pin". Therefore, in the connector portion 116 of the main unit 10 connected to the three-electrode/cable type sensor unit 30a, the "A pin and B pin" are in the "Low (L)" state.

Further, as shown in FIG. 14(b), in the two-electrode/cable type sensor unit 30b, the "A pin" of the connector section 36 is connected to the "GND pin", and the "B pin" is connected to the "VCC pin". It is connected. Therefore, in the main unit 10 connected to the 2-electrode/cable type sensor unit 30b, the "A pin" of the connector section 116 is in the "Low (L)" state, and the "B pin" is in the "High (H)" state. state.

Further, as shown in FIG. 14(c), in the two-electrode/patch type sensor unit 30c, the "A pin" of the connector section 36 is connected to the "VCC pin", and the "B pin" is connected to the "GND pin". It is connected. Therefore, in the main unit 10 connected to the two-electrode/patch type sensor unit 30c, the "A pin" of the connector section 116 is in the "High (H)" state, and the "B pin" is in the "Low (L)" state. state.

Further, as shown in FIG. 14(d), in the two-electrode/clip type sensor unit 30d, both the "A pin and B pin" of the connector section 36 are connected to the "VCC pin". Therefore, in the connector portion 116 of the main unit 10 connected to the two-electrode/clip-type sensor unit 30d, the "A pin and B pin" are in the "High (H)" state.

Returning to FIG. 12, the configuration of the main unit 10 of the electrocardiographic measurement apparatus W will be described.
The device control unit 110 controls each functional unit of the main unit 10 (sensor unit identification unit 111, electrocardiogram measurement unit 112, first external communication unit 113, display unit 114, operation unit 115, second external communication unit 117, electrocardiogram 118), and controls the overall operation of the main unit 10. FIG.
Upon receiving the “type of sensor unit 30” identified by the sensor unit identification unit 111, the device control unit 110 notifies the electrocardiogram measurement unit 112 of the received “type of the sensor unit 30”.
In addition, the device control unit 110 acquires the measurement information (“electrocardiogram waveform and heart rate” or “electrocardiogram waveform, heart rate, respiratory curve and respiratory rate”) measured by the electrocardiogram measurement unit 112, and records the electrocardiogram waveform. 118 to store the measurement information, or generate a measurement image (an image such as an electrocardiogram waveform) displaying the measurement information, and display the measurement image on the display unit 114 .
The device control unit 110 also receives an operation request from the operation unit 115, and transmits measurement information to an external device such as the PC 50 or the tablet terminal 60 via the first external communication unit 113 and the second external communication unit 117. or receive various information from an external device.

The sensor unit identification section 111 identifies the type of the connected sensor unit 30 based on the signal received from the “identification pins (A pin and B pin)” of the electrocardiographic electrode connector section 120 .
In this embodiment, as shown in the table of FIG. 15, the sensor unit identification unit 111 identifies the connected "sensor unit 30 type" according to the connected state of the "A pin and B pin". Then, the identified “sensor unit 30 type” is transmitted to the device control unit 110 .

Specifically, when the "A pin and B pin" are both in the "Low (L)" state, the sensor unit identification unit 111 determines that the type of the connected sensor unit 30 is "three-electrode/cable type." sensor unit 30a”.
When the "A pin" is "Low (L)" and the "B pin" is "High (H)", the sensor unit identification unit 111 determines that the type of the connected sensor unit 30 is "2". It is identified as an electrode/cable type sensor unit 30b.
When the “A pin” is “High (H)” and the “B pin” is “Low (L)”, the sensor unit identification unit 111 determines that the type of the connected sensor unit 30 is “Patch”. type sensor unit 30c".
The sensor unit identifying section 111 identifies that the type of the connected sensor unit 30 is the "clip-type sensor unit 30d" when both the "A pin and the B pin" are in the "High (H)" state. do.

The electrocardiogram measurement unit 112 acquires the “type of sensor unit 30 ” identified by the sensor unit identification unit 111 via the device control unit 110 . In addition, the electrocardiogram measurement unit 112 receives the detection signal detected by the electrode 35 via the electrocardiogram electrode connector unit 120, and performs arithmetic processing according to the acquired "type of the sensor unit 30" to detect the received signal. Measurement information ("electrocardiogram waveform and heart rate" or "electrocardiogram waveform, heart rate, respiratory curve and respiratory rate") is calculated from the signal. The electrocardiogram measurement unit 112 also transmits the calculated measurement information to the device control unit 110 .

Specifically, when the acquired “type of sensor unit 30” is “three-electrode/cable-type sensor unit 30a,” the electrocardiogram measurement unit 112 connects the three electrodes 35a via the electrocardiogram electrode connector unit 120. The detected detection signal is received, and by arithmetic processing corresponding to the "three-electrode/cable sensor unit 30a", the received detection signal is used to obtain "electrocardiogram waveform (electrocardiographic lead switchable), heart rate, respiratory curve and Calculate the respiratory rate.
When the acquired “type of sensor unit 30” is “two-electrode/cable-type sensor unit 30b”, the electrocardiogram measurement unit 112 detects two electrodes 35a through the electrocardiogram electrode connector unit 120. A signal is received, and by arithmetic processing corresponding to the "two-electrode/cable-type sensor unit 30b", the received detection signal is used to obtain "electrocardiogram waveform (electrocardiographic lead switching not possible), heart rate, respiratory curve and respiratory rate". Calculate

When the acquired “type of sensor unit 30” is “patch type sensor unit 30c”, electrocardiogram measurement unit 112 receives detection signals detected by two electrodes 35a via electrocardiogram electrode connector unit 120. Then, by arithmetic processing corresponding to the "patch-type sensor unit 30c", the received detection signal is used to calculate the "electrocardiogram waveform (electrocardiographic lead switching not possible) and heart rate".
When the acquired “type of sensor unit 30” is “clip type sensor unit 30d”, electrocardiogram measurement unit 112 receives detection signals detected by two electrodes 35d via electrocardiogram electrode connector unit 120. Then, by arithmetic processing corresponding to the "clip-type sensor unit 30d", the received detection signal is used to calculate the "electrocardiogram waveform (electrocardiographic lead switching not possible) and heart rate".

The functions of the device control section 110, the sensor unit identification section 111, the electrocardiogram measurement section 112, the first external communication section 113, and the second external communication section 117 are realized by the main substrate 101, for example.
For example, the memory of the main substrate 101 stores a computer program that implements the functions of each unit (the device control unit 110, the sensor unit identification unit 111, the electrocardiogram measurement unit 112, the first external communication unit 113, and the second external communication unit 117). Keep The functions of each unit (the device control unit 110, the sensor unit identification unit 111, the electrocardiogram measurement unit 112, the first external communication unit 113, and the second external communication unit 117) are performed by the CPU of the main board 100 executing the computer program. It is realized by
Also, the electrocardiographic waveform recording section is formed in a predetermined area of the memory on the main substrate 100 .

Also, the display unit 114 is composed of an organic OL display (OLED) mounted on the sub substrate 102 . The display unit 114 is controlled by the device control unit 110, and displays a measurement image (an image such as an electrocardiogram waveform) generated from the measurement information calculated by the electrocardiogram measurement unit 112, and displays various operation information.
Although an organic OL display (OLED) is used for the display unit 114 in this embodiment, the display unit 114 is not particularly limited to this. Any device other than an organic device may be used as long as it can display a measurement image, various operation information, and the like.

The operation unit 115 is composed of tact switches mounted on the sub-board 102 . Further, upon receiving a request from the user, the operation unit 115 transmits the received request to the device control unit 110 .

As described above, according to the configuration of the electrocardiogram measuring apparatus W of the present embodiment, any one of the plurality of types of sensor units 30 (sensor units 30a, 30b, 30c, and 30d) having different functions can be selected and It can be detachably connected to the unit 10 and attached to the subject's body to measure the electrocardiogram.
That is, according to the configuration of this embodiment, the function of measuring biological information including "electrocardiogram waveform and respiratory rate" required by medical institutions and the "heart rate" widely used in the home and nursing care areas are measured. The measurement function can be provided in the same device and in a wearable device that places less burden on the subject.

Therefore, according to the present embodiment, medical institutions do not need to prepare and manage multiple types of electrocardiographic measurement devices with different functions. can be mitigated. Further, according to the present embodiment, the wearable device can measure biological information including "electrocardiogram waveform and respiratory rate" required by medical institutions, thereby reducing the burden on the subject during measurement.
In addition, according to the configuration of this embodiment, the same wearable device provides a plurality of types of measurement functions. It is possible to measure detailed biological information including "electrocardiogram waveform and respiration rate".

Further, in the electrocardiogram measuring apparatus W of the present embodiment, when the sensor unit 30 is connected to the main unit 10, the main unit 10 automatically identifies the type of the sensor unit 30, and detects the type of the identified sensor unit 30. Through the arithmetic processing, the electrocardiogram is calculated from the detection signal (detection signal) detected by the sensor unit 30 .
Therefore, a user such as a doctor or a nurse connects the sensor unit 30 to the main unit 10 or replaces the connected sensor unit 30 according to the physical condition of the subject or information to be monitored. With such a simple operation, the electrocardiogram can be measured by attaching the device to the subject's body without troublesome setting work.

For example, when the patch-type sensor unit 30c is connected to the main unit 10 and the electrocardiogram of the subject is simply measured, an abnormal value is measured. Suppose a case arises that you want to see. In such a case, a user such as a doctor or nurse replaces the "patch-type sensor unit 30c" connected to the main unit 10 with the "three-electrode/cable-type sensor unit 30a", The electrocardiogram may be measured by attaching it to the body of a person. That is, according to the present embodiment, in the case as described above, there is no need to prepare another measuring device (for example, a stationary electrocardiogram measuring device) and measure the electrocardiogram again. of the user can be reduced.

Further, according to the configuration of the present embodiment, if a spare main unit 10 is prepared in a medical institution or the like, the main unit 10 can be easily replaced even when the battery runs out or the main unit 10 breaks down. By replacing the battery, it is possible to deal with a dead battery or malfunction.

Since the electrocardiogram measuring apparatus W of the present embodiment is a wearable type, even when measuring an electrocardiogram by connecting the "three-electrode/cable-type sensor unit 30a" that measures electrocardiograms with high accuracy, the stationary type The burden on the examinee is smaller than that of the electrocardiograph.

As described above, according to the present embodiment, it is possible to provide a wearable electrocardiographic measurement device W capable of switching between a plurality of measurement functions.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist of the present invention.

In the electrocardiogram measuring apparatus W of the embodiment described above, four types of sensor units 30 (30a, 30b, 30c, and 30d) are arbitrarily selected, and the arbitrarily selected sensor unit 30 is detachably connected to the main unit 10. However, the number and types of sensor units 30 are merely examples.
For example, in the electrocardiogram measuring apparatus W, in addition to the four types of sensor units 30 (30a, 30b, 30c, 30d) described above, a "two-electrode patch-type sensor unit 30e" shown in FIGS. It may be so arranged that it can be attached to the

Here, FIG. 16 is a schematic diagram of a wearable electrocardiographic measuring device to which a modified example of the patch-type sensor unit (see FIG. 9) is attached, as viewed obliquely from above. FIG. 17 is a schematic view showing components of a wearable electrocardiographic measuring device to which a modification of the above-described patch-type sensor unit is attached. FIG. 18 is a schematic diagram for explaining an electrode unit that constitutes a modification of the patch-type sensor unit described above.

16 and 17, the "wearable electrocardiographic measuring device W" shown in FIGS. sensor unit 30e", and the configuration other than the sensor unit 30e is the same as that shown in FIGS.

Specifically, as shown in FIG. 17, the wearable electrocardiographic measurement device W includes a “patch-type sensor unit 30e” including a substrate sheet-integrated electrode 70, and a connector portion 36 of the sensor unit 30e. A body unit 10 freely connected and a foam cover 25 covering the body unit 10 are provided.
In this wearable electrocardiogram measuring device W, when the body unit 10 to which the sensor unit 30e is attached is covered with the foam cover 25, as shown in FIG. 25 and hidden.

As shown in FIG. 17, the sensor unit 30e includes an electrode unit 33e detachably connected to the main body unit 10, and a substrate sheet integrated electrode on which the main body unit 10 attached to the electrode unit 33e is placed. 70.
The base sheet integrated electrode 70 includes a base sheet portion 71 made of an insulating material, and sheet-like conductive gel portions (made of conductive adhesive gel) formed on both left and right ends of the base sheet portion 71. conductive gel portion) 72 , 72 . The conductive gel portions 72, 72 formed at both left and right ends of the base sheet integrated electrode 70 form a pair of electrodes.
The body portion 10 is placed on the base sheet portion 71, the electrode unit 33e is brought into contact with the conductive gel portion 72, and the conductive gel portion 72 and the electrode unit 33e are electrically connected. ing.

Further, the electrode unit 33e is connected to a first connection portion 33e1 connected to one conductive gel portion 72 of the base sheet integrated electrode 70 and to the other conductive gel portion 72 of the base sheet integrated electrode 70. It has a second connection portion 33 e 2 and a connector portion 36 that is detachably connected to the main unit 10 . Also, the first connection portion 33e1 is connected to the connector portion 36 via the connection arm 34f. Also, the second connection portion 33e2 is connected to the connector portion 36 via the connection arm 34g.
The connector portion 36 and the connection arms 34f and 34g of the electrode unit 33e are the same as those shown in FIG.

Further, as shown in FIG. 18, the first connection portion 33e1 (and the second connection portion 33e2) of the electrode unit 33e includes a housing made of an insulating material such as synthetic resin. A metal pad electrode 33e5 that is brought into contact with and electrically connected to the portion 72 is accommodated.
By bringing the pad electrode 33e5 of the electrode unit 33e into contact with the conductive gel portion 72 of the base sheet integrated electrode 70, the conductive gel portion 72 of the base sheet integrated electrode 70 and the electrode unit 33e are electrically connected. ing.
Specifically, the pad electrode 33e5 of the electrode unit 33e is brought into contact with one surface (surface) of the conductive gel portion 72 of the base sheet integrated electrode 70, so that the electrode unit 33e is connected to the base sheet integrated electrode 70. is electrically connected to

In addition, in the "two-electrode patch type sensor unit 30e" of this modified example, the "A pin" of the connector section 36 is connected to the "VCC pin" in the same manner as the above-described "two-electrode patch type sensor unit 30c". The "B pin" is connected to the "GND pin" (see FIG. 14(c)). Therefore, in the main unit 10 connected to the "two-electrode/patch type sensor unit 30e" of the present modification, the "A pin" of the connector section 116 is in the "High (H)" state, and the "B pin" is in the state of "High (H)". It will be in the state of "Low (L)".

Then, the wearable electrocardiogram measuring device W to which the "two-electrode patch type sensor unit 30e" of this modified example is attached has the conductive gel 72 of the base sheet integrated electrode 70 at the position of the right side and chest of the subject, By affixing the other surface of 72 and bringing it into contact with it, it is possible to measure "electrocardiogram waveform (electrocardiographic lead switching not possible) and heart rate".
In addition, since the "two-electrode patch-type sensor unit 30e" of this modified example has a configuration in which the base sheet and the electrodes are integrated, it is different from the "patch-type sensor unit 30c" shown in FIG. In comparison, it is easy to attach to the subject.

W Wearable electrocardiographic measuring device 10 Main unit 100 Case part 100a Lower case 100b Upper cases 100b1, 100b2 Opening 100c Battery cover 100d Nameplate (embossed switch part)
DESCRIPTION OF SYMBOLS 101... Main board 102... Sub board 103... Chassis 110... Device control part 111... Sensor unit identification part 112... Electrocardiogram measurement part 113... First external communication part (USB)
114 ... Display unit (OLED)
115 ... Operation unit (tact switch)
116... Connector unit (connector part)
117 Second external communication unit (BLE)
118... Electrocardiographic waveform recording unit 119... Battery 120... Electrocardiographic electrode connector unit

30, 30a, 30b, 30c, 30d, 30e... sensor units 33a, 33b, 33c, 33d, 33e... electrode units 33a1, 33b1, 33c1... first connection parts 33a2, 33b2, 33c2... second connection parts 33a3... third Connecting portions 33e5 Pad electrodes 34a, 34b, 34c, 34d, 34e, 34f, 34g, 34h, 34i Connection arms 35, 35a, 35d Electrodes 35b Male snaps 36 Connectors 37, 38 Base sheet 37a , 38a through hole 39 sensor unit specific substrate 40 clip 40a, 40b grip piece 41 holder portion 41a low surface portion 41b support piece 70 base sheet integrated electrode 71 base sheet portion 72 conductive gel Department

50 PC
60...Tablet

Claims (4)

A plurality of types of sensor units with different functions and a body unit to which any one of the plurality of types of sensor units can be freely selected and detachably connected are provided, and the body unit is connected to the sensor unit. A wearable electrocardiographic measuring device worn by an examiner,
The sensor unit has an electrode that is brought into contact with the subject's body, and transmits a detection signal detected by the electrode to the connected body unit,
When one of the plurality of types of sensor units is connected, the main body unit automatically identifies the type of the sensor unit connected to itself, and detects the detection transmitted by the connected sensor unit. A wearable type electrocardiogram measuring device, characterized in that it receives a signal and measures an electrocardiogram from the received detection signal by arithmetic processing according to the type of the identified sensor unit. A connector portion that connects the main unit and the sensor unit is provided with an identification pin for identifying the sensor unit,
The plurality of types of sensor units have different connection states of the identification pins for each type,
2. The wearable core according to claim 1, wherein the main body unit identifies the type of the sensor unit connected thereto in a connected state of the identification pin of the connector portion. electric measuring device. The plurality of types of sensor units include a three-electrode/cable-type sensor unit having three electrodes, a two-electrode/cable-type sensor unit having two electrodes, and a patch-type sensor unit having two electrodes. It includes a sensor unit and a clip-type sensor unit with two electrodes,
The three-electrode/cable-type sensor unit has two electrodes that can be adjusted and placed at arbitrary positions on the chest and left and right sides of the subject's heart, and one electrode that is located on the abdomen side of the subject. It is connected with an electric wire so that it can be adjusted and placed at any position,
The two-electrode/cable-type sensor unit is connected by electric wires so that the two electrodes can be adjusted and arranged at arbitrary positions on the chest side and the abdomen side across the heart of the subject,
The patch-type sensor unit is arranged in a state where two electrodes are close to each other and separated by a predetermined dimension,
The clip-type sensor unit includes a pair of clips that hold the left and right wrists of a subject, and electrodes attached to the pair of clips, and the clips hold both wrists of the subject. 3. The wearable electrocardiogram measuring device according to claim 1, wherein when the device is clamped, the electrodes are pressed against the wrists to maintain the contact state. The patch-type sensor unit includes a first patch-type sensor unit and a second patch-type sensor unit,
The first patch-type sensor unit includes a first electrode unit detachably connected to the body unit, two electrodes detachably electrically connected to the first electrode unit, and the first electrode unit. a base sheet on which the body unit attached to the electrode unit is placed,
The second patch-type sensor unit includes a second electrode unit that is detachably connected to the main body unit, and a base sheet integrated on which the main body unit that is attached to the second electrode unit is placed. The base sheet integrated electrode has a base sheet portion formed of an insulating material and sheet-like conductive gel portions formed on both left and right end portions of the base sheet portion. , the conductive gel portions at the left and right ends form a pair of electrodes, the body portion is placed on the base sheet portion, and the electrode unit is electrically connected to the conductive gel portions. 4. The wearable electrocardiogram measuring device according to claim 3, wherein the wearable electrocardiogram measuring device is configured as follows.

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