WO2023171441A1

WO2023171441A1 - Electrocardiograph

Info

Publication number: WO2023171441A1
Application number: PCT/JP2023/006967
Authority: WO
Inventors: 智之内田; 賢治土肥; 肇池田; 文彦吉井
Original assignee: ニプロ株式会社
Priority date: 2022-03-07
Filing date: 2023-02-27
Publication date: 2023-09-14

Abstract

Provided is a novel electrocardiograph with which it is possible to reduce or eliminate at least one problem presented by electrocardiographs having a conventional structure, and to improve properties.　The present invention provides an electrocardiograph (10) including an affixation sheet (12), a measurement electrode (14), a base member (16), and a device body (18). The base member (16) is provided with a bottom wall (38), and a fitting peripheral wall (40) for holding the device body (18) in a state of being overlapped with the base member (16) on the basis of an action of fitting to the device body (18). A connector part (108) comprising a contact at which electrical connection is established by the base member (16) and the device body (18) coming into contact with each other is provided between the base member (16) and the device body (18). The measurement electrode (14) is electrically connected to a device body (18)-side electric circuit through the connector part (108). There are provided biasing members (16, 50, 74) for bringing the base member (16)-side contact and the device body (18)-side contact into contact with each other in a state of being biased in the overlap direction in the connector part (108).

Description

Electrocardiograph

The present invention relates to an electrocardiograph that is attached to a human body and transmits and/or records electrocardiogram information.

Conventionally, electrocardiogram measurements have been performed to check conditions such as arrhythmia and angina pectoris. In particular, when such electrocardiogram measurement is performed over a long period of time while the patient is free to move, it is possible to measure electrocardiogram information over a long period of time and, for example, to transmit the electrocardiogram information to the outside of the device or record it inside the device. A small electrocardiograph is used by being attached to the human body. As such an electrocardiograph, for example, Japanese Patent Application Publication No. 2018-19958 (Patent Document 1) proposes an electrocardiogram recording device that can record electrocardiogram information.

Japanese Patent Application Publication No. 2018-19958

By the way, such an electrocardiograph includes measurement electrodes for measuring electrocardiogram information, an electric circuit for controlling the device, a battery such as a battery housed inside, and lead wires for electrically connecting these. It is equipped with Conventional electrocardiographs require, for example, improvements in the stability of conduction at electrical connections, improvements in waterproof performance against water and sweat, reduction in the feeling of wearing by making them smaller and lighter, and the need to replace batteries. There was a need for improvements in properties such as improved elasticity and improved adhesion to the surface of the human body to prevent unintentional peeling from the human body.

The problem to be solved by the present invention is to provide a novel electrocardiograph that can reduce or eliminate at least one of the problems of electrocardiographs of conventional structure and improve its characteristics. It is in.

Hereinafter, preferred embodiments for understanding the present invention will be described. However, each of the embodiments described below is described by way of example, and may not only be adopted in combination with each other as appropriate, but also be described in each embodiment. The plurality of components can be recognized and employed as independently as possible, and can also be appropriately employed in combination with any of the components described in other embodiments. Accordingly, the present invention is not limited to the embodiments described below, and various other embodiments can be realized.

The first aspect is an electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information, and includes an adhesive sheet that is attached to the skin of the human body, and a A plurality of measurement electrodes overlapped on the skin, a base member provided on the outer surface of the adhesive sheet, and a base member that is removably attached to the base member to transmit and transmit electrocardiogram information based on the potential detected by the measurement electrodes. and/or a recording device main body, the base member having a bottom wall fixed to the adhesive sheet, and the device main body attached to the base member based on a fitting action to the device main body. A fitting peripheral wall is provided to hold the base member in an overlapping state, and a connector portion is provided between the base member and the main body of the device, and the connector portion is comprised of contacts that are electrically connected by contact in the mutual overlapping direction. The plurality of measurement electrodes are electrically connected to the electric circuit on the device main body side through the connector portion, and the contacts on the base member side and the contacts on the device main body side are connected in the connector portion. The device is equipped with a biasing member that urges the two to contact each other in the stacking direction.

According to this aspect, the device main body is removable from the base member, and the contact point on the base member side and the contact point on the device main body side are urged in the overlapping direction by the biasing member. contact with. Thereby, it is possible to maintain and stabilize the conduction state between the contact point on the base member side and the contact point on the device main body side. Moreover, the assembly structure of the base member and the device main body using the fitting peripheral wall makes it easy to improve the waterproof performance between the base member where electrical contacts are arranged and the device main body.

In a second aspect of the electrocardiograph according to the first aspect, the biasing member is provided on at least one of the base member side and the device main body side of the connector portion, and the biasing member is provided on the base member side of the connector portion. It is constituted by an elastic member that biases the contact point on the device main body side and the contact point on the device main body side in the overlapping direction.

According to this aspect, the biasing member is constituted by the elastic member, and the elastic restoring force in the elastic member is biased in a state where the contact point on the base side member side and the contact point on the device main body side are overlapped. It can be used as a biasing force. In particular, by using conductive rubber as an elastic member in the connector part, the assembly structure between the base member and the device main body can be made lighter and smaller than, for example, when using a mechanical electrical connector. This reduces the feeling of wearing.

In a third aspect, in the electrocardiograph according to the first or second aspect, a contact support portion protruding from the inner surface of the bottom wall toward the connector portion is provided on the inner surface of the bottom wall of the base member. It is provided.

According to this aspect, since the contact support portion is provided on the inner surface of the bottom wall of the base member, the base member and the device main body can be brought closer to each other by the amount of the contact support portion, and the contact point on the base member side and the device body can be brought closer to each other by the contact support portion. It is also possible to make contact with the contact point on the main body side with a larger urging force. For example, in combination with the second aspect, the restoring force in the elastic member can be used more efficiently as an urging force between the contacts.

A fourth aspect is an electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information, and includes an adhesive sheet that is attached to the skin of the human body, and a A plurality of measurement electrodes overlapped on the skin, a base member provided on the outer surface of the adhesive sheet, and a base member that is removably attached to the base member to transmit and transmit electrocardiogram information based on the potential detected by the measurement electrodes. and/or a recording device main body, in which an electric circuit board and a power supply battery are housed and assembled in the device main body, and a battery holder portion for positioning the battery is attached to the electric circuit. It is provided on the inner surface of the casing of the main body of the device on which the substrates are stacked.

According to this aspect, since the battery holder portion for positioning the battery is provided on the inner surface of the casing of the device main body, the battery holder portion can be formed more easily than, for example, when the battery holder portion is provided on the electric circuit board. As a result, the structure can be simplified and the battery can be easily attached and detached.

In a fifth aspect, in the electrocardiograph according to the fourth aspect, the battery is constituted by a button battery, and the casing of the device main body has a bottom member and a lid member overlapped with each other. By being fixed to the button battery, a housing space for the electric circuit board and the button battery is formed between the overlapping surfaces, and the battery holder portion is provided on the inner surface of one of the bottom member and the lid member. and the electric circuit board is superimposed on the button battery arranged in the battery holder part, and the bottom member and the lid member are fixed to each other, so that the electric circuit board is provided on the electric circuit board. The contacts of both poles are held in contact with the button battery, and the electric circuit board and the button battery are removed from the housing by opening the bottom member and the lid member. It is considered possible.

According to this aspect, the casing of the device main body is configured to include a bottom member and a lid member, and the electric circuit board and the button battery are housed between the bottom member and the lid member, and the bottom member The electric circuit board and button battery can be taken out by opening the lid member. Therefore, by removing the device body from the base member and opening the bottom member and lid member, the electric circuit board and button battery can be easily replaced.

A sixth aspect is an electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information, and includes an adhesive sheet that is attached to the skin of the human body, and a A plurality of measurement electrodes overlapped on the skin, a base member provided on the outer surface of the adhesive sheet, and a base member that is removably attached to the base member to transmit and transmit electrocardiogram information based on the potential detected by the measurement electrodes. and/or a recording device main body, wherein the adhesive sheet is provided with three of the measurement electrodes, and the device is set to be offset toward the bottom in the vertical direction at approximately the center in the left-right direction of the adhesive sheet. The respective centers of the first and second measurement electrodes on the left and right are positioned diagonally upward from the center of the attachment site of the main body, and the third measurement electrode is positioned diagonally upward from the center of the attachment site of the device body. The position is set above from .

According to this aspect, the adhesive sheet is provided with three measurement electrodes, and the center of the device body is provided below the center of each measurement electrode. Therefore, the center of gravity of the electrocardiograph can be biased downward on the adhesive surface of the adhesive sheet that spreads over the entire area around the three measurement electrodes, for example, the center of gravity of the electrocardiograph can be positioned higher. Compared to the case where the electrocardiograph is attached, the state in which the electrocardiograph is attached can be stabilized, and unintended peeling of the adhesive sheet from the skin of the human body can be suppressed.

A seventh aspect of the electrocardiograph according to the sixth aspect is that the adhesive sheet has a curved shape in which an upper peripheral edge portion has a smaller radius of curvature than a lower peripheral edge portion. , the shortest position from the center of the attachment part of the device main body to the outer edge of the adhesive sheet is set below the device main body, and the position where the horizontal width dimension of the adhesive sheet is maximum The center of the attachment site of the device body is set to be biased downward.

According to this aspect, for example, assuming that the adhesive sheet is worn in a state where the vertical direction is approximately vertical when the human body is standing upright, the adhesive surface of the adhesive sheet is positioned above the main body of the device. Since the device body is provided in a form that spreads out so as to hang the device body, it is possible to further improve the stable adhesion state of the device body by the adhesive sheet.

An eighth aspect is an electrocardiograph that is attached to a patient's body to transmit and/or record electrocardiogram information, which includes an adhesive sheet that is attached to the skin of the human body, and an adhesive sheet provided on the adhesive sheet. A plurality of measurement electrodes are superimposed on the skin of a human body, a base member is provided on the outer surface of the adhesive sheet, and the adhesive sheet is removably attached to the base member, and electrocardiogram information based on the detected potential by the measurement electrodes is provided. a transmitting and/or recording device main body; A lead-off detection mechanism is provided to detect the occurrence of abnormality in electrical conductivity detected by the lead-off detection mechanism.

According to this aspect, if an abnormality occurs in electrical conductivity when detecting an action potential with the measurement electrode, for example, the measurement electrode may be peeled off from the skin, or the lead wire connecting the device body and the measurement electrode may be severed. In this case, the occurrence of an abnormality in electrical continuity is detected by a lead-off detection mechanism. In particular, since the occurrence of an electrical conductivity abnormality detected by the lead-off detection mechanism is notified to the patient wearing the electrocardiograph by the notification means, the moment the patient confirms that an abnormality has occurred, The abnormality can be corrected by reattaching the measurement electrode or going to a medical institution. That is, since the electrocardiograph according to this embodiment is worn for a long period of time, for example, several days to several weeks, and measurements are taken, the abnormality can be resolved more quickly by allowing the patient to confirm the occurrence of the abnormality. It is also possible to shorten the period during which measurements are not possible, avoid delays in diagnosis due to re-measurement, and reduce the burden on patients associated with wearing an electrocardiograph for a longer period of time. .

According to the present invention, it is possible to realize a novel electrocardiograph that can provide at least one improvement over electrocardiographs of conventional structure.

A front view showing an electrocardiograph as an embodiment of the present invention A vertical cross-sectional view showing an enlarged view of the II-II cross section in FIG. A plan view showing the electrocardiograph shown in Figure 1 with the main body of the device removed. An exploded perspective view showing the main parts of the electrocardiograph shown in Figure 1 FIG. 2 is an explanatory diagram for explaining the lighting state of the LED lamps constituting the lead-off detection mechanism in the electrocardiograph shown in FIG. 1, in which (a) both the first lighting area and the second lighting area are lit; (b) is a diagram showing a state in which only the second lighting area is lit; An exploded perspective view showing the internal structure of the device main body that constitutes the electrocardiograph shown in Figure 1. A front view showing an example of the state in which the electrocardiograph shown in Figure 1 is attached to a human body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2 show an electrocardiograph 10 as one embodiment of the present invention. This electrocardiograph 10 is attached to a patient's body A as shown in FIG. 7, which will be described later, and transmits electrocardiogram information to the outside of the device or records it inside the device over a long period of time, for example, several days or weeks. It is. Note that the direction in which the electrocardiograph 10 is attached to the human body A is not limited, but in the following description, the up-down direction refers to the up-down direction in FIG. 1, and the left-right direction refers to the left-right direction in FIG. The front-rear direction refers to the up-down direction (sheet thickness direction) in FIG.

More specifically, the electrocardiograph 10 includes an adhesive sheet 12 that is adhered to the skin a of the human body A (see FIG. 7), and an adhesive sheet 12 that is provided on the rear surface (back side) of the adhesive sheet 12 and that is attached to the skin a of the human body A (see FIG. 7). The device includes a plurality of measurement electrodes 14 that are electrically connected to each other, a base member 16 provided on the front surface (outer surface serving as the front surface) of the adhesive sheet 12, and a device main body 18 that is removably attached to the base member 16. I'm here.

Although the shape of the adhesive sheet 12 is not limited, in this embodiment, the shape is generally larger in the horizontal direction than in the vertical direction in a plan view (front view) shown in FIG. It has an elliptical shape, and in particular in this embodiment, the upper peripheral edge portion is curved with a smaller radius of curvature than the lower peripheral edge portion, resulting in an approximately rice ball shape (triangular shape with rounded corners). ing. Furthermore, a thin annular protection sheet 22 that extends around each measurement electrode 14 is adhered to the rear surface of the adhesive sheet 12 in this embodiment in an overlapping state.

Both the adhesive sheet 12 and the protective sheet 22 have electrical insulation properties, are made of soft synthetic resin such as polyurethane, and can be flexibly deformed along the skin surface of the human body A. . Note that the adhesive sheet 12 is preferably colorless and transparent or colored and transparent, for example, in order to make it easier to grasp the position of each measurement electrode 14. Alternatively, in order to make it difficult for others to notice that the electrocardiograph 10 is being worn, the adhesive sheet 12 may be skin-colored. In addition, by making the protective sheet 22 harder, thicker, or colored than the adhesive sheet 12, the position of the measurement electrode 14 located at the center of the protective sheet 22 can be visually checked from the outer surface of the adhesive sheet 12. It is also possible to make the confirmation easier by touching or contacting the measuring electrode 14, or a mark such as a color indicating the position of the measuring electrode 14 may be provided on the front surface of the protective sheet 22.

Note that in the electrocardiograph 10 shown in FIG. 2, the thickness dimensions of some members are exaggerated for ease of understanding. The method of fixing the adhesive sheet 12 and the protective sheet 22 is not limited, but may be fixed by, for example, adhesion or welding. As will be described later, the rear surface of the adhesive sheet 12 is an adhesive surface 26 that is applied to the skin a via an adhesive layer 24 made of an adhesive. The area colored gray in FIG. 1 is the adhesive layer 24 on the adhesive surface 26 to which the adhesive is applied. Further, as shown in FIG. 1 and the like, in the initial state before use, a release liner 28 is releasably attached to the adhesive surface 26 of the adhesive sheet 12 via the adhesive layer 24. Note that the adhesive layer 24 may also be provided on the back surface of the protective sheet 22.

In a circular through hole 30 provided in the center of each protective sheet 22, a measuring electrode 14 is arranged approximately at the center. The front surface of the measurement electrode 14 is covered with an adhesive sheet 12, and the rear surface of the measurement electrode 14 is exposed toward the rear, so that the electrocardiograph 10 can be attached to the skin surface of the human body A by attaching the protective sheet 22 to the skin surface of the human body A. When attached to the human body A, each measurement electrode 14 is superimposed on the skin a of the human body A and is electrically conductive. Each measurement electrode 14 may be superimposed on the skin a of the human body A via a conductive gel (not shown).

In this embodiment, three measurement electrodes 14 (first to third measurement electrodes 14a to 14c) are provided. As each of the measurement electrodes 14a to 14c, conventionally known electrocardiogram measurement electrodes may be employed. Further, each measurement electrode 14 is connected to a lead wire 32 (first to third lead wires 32a to 32c). The lead wires 32a to 32c are wired independently from each other, and each extends from each measurement electrode 14 toward the base member 16.

Each lead wire 32 has its front surface covered with the adhesive sheet 12 and its rear surface covered with the protective sheet 22, and is insulated from the outside. Each lead wire 32 is gathered at the end opposite to the measurement electrode 14 so as to be located approximately at the bottom center of the base member 16, and is provided on the adhesive sheet 12 as shown in FIG. The surface facing the base member 16 (front surface) is exposed through the current-carrying window 33 .

Within the current-carrying window 33, current-carrying

wires

34a, 34b, and 34c are electrically connected to mutually independent

lead wires

32a, 32b, and 32c, respectively. These current-carrying wires 34a to 34c are laminated on a flexible insulating sheet to constitute one FFC (flexible flat cable) 36 as a whole. In the FFC 36, current-carrying wires 34a to 34c connected to each measurement electrode 14 are drawn out from the front surface of the adhesive sheet 12.

A base member 16 is provided on the outer surface (front surface) of the adhesive sheet 12, and covers the current-carrying window 33 of the adhesive sheet 12 from the front. As shown in FIG. 3, the base member 16 has a substantially rectangular shape with rounded corners when viewed from above. The base member 16 is an elastic member made of, for example, elastically deformable soft synthetic resin. The base member 16 includes a bottom wall 38 having a substantially rounded rectangular shape, and a fitting peripheral wall 40 protrudes forward from the outer peripheral edge of the bottom wall 38 . The fitting circumferential wall 40 is provided continuously over the entire circumference in the circumferential direction, and an engaging claw 42 that protrudes inward is provided at the protruding end (front end) of the fitting circumferential wall 40. There is. The fitting peripheral wall 40 is formed to be relatively thin with respect to the bottom wall 38, and can be elastically deformed in a direction (for example, an up-down direction or a left-right direction) orthogonal to the protruding direction (front-back direction). Note that it is desirable that the engaging claws 42 are provided continuously over the entire circumference.

Further, a substantially slit-shaped insertion hole 44 that penetrates the bottom wall 38 in the thickness direction (front-back direction) is provided in the substantially central portion of the bottom wall 38, and a substantially slit-shaped insertion hole 44 is provided in the left portion of the bottom wall 38. Two screw holes 46, 46 are provided which are spaced apart from each other in the vertical direction.

Further, on the inner surface (front surface) of the bottom wall 38, a contact support portion is provided that protrudes forward toward a connector portion 108, which will be described later. In this embodiment, as shown in FIG. 4 and the like, the contact support portion is constituted by a substantially rectangular reinforcing plate 48. The reinforcing plate 48 is a hard member made of metal, synthetic resin, or the like, and in this embodiment is made of polyethylene terephthalate (PET). Furthermore, two

screw holes

49, 49 are provided at the left end portion of the reinforcing plate 48, which are spaced apart from each other in the vertical direction. These screw holes 49, 49 are formed at positions corresponding to the screw holes 46, 46 in the bottom wall 38. Further, in this embodiment, the reinforcing plate 48 is attached to the inner surface of the bottom wall 38 with a waterproof double-sided tape 50. This waterproof double-sided tape 50 and the waterproof double-sided tape 78 described later have a structure in which, for example, adhesive layers or adhesive layers are laminated on both sides of a base material, and are sufficiently thin and flexible. The waterproof double-

sided tapes

50 and 78 are elastic members that have elasticity in the thickness direction (back and forth direction) due to the adhesive layer or adhesive layer.

The base member 16 of this embodiment is provided with a shallow recess 52 that opens on the inner surface of the bottom wall 38, and the reinforcing plate 48 is attached to the bottom surface of the recess 52 (inner surface of the bottom wall 38). The reinforcing plate 48 is housed in the recess 52. That is, the bottom wall 38 in the portion where the recess 52 is formed, which is thinned by the recess 52, is reinforced by the reinforcing plate 48. However, such a reinforcing plate 48 is not essential, and for example, a contact support portion (reinforcing plate 48) may be formed on the inner surface of the bottom wall 38 by integral molding or the like to provide reinforcement. Furthermore, the recess 52 itself is not essential as long as it can stably support a contact portion in the FFC 36, which will be described later.

Further, in this embodiment, the insertion hole 44 provided in the substantially central portion of the bottom wall 38 opens at a position substantially in the center of the bottom surface of the recess 52 and slightly outside the reinforcing plate 48 . The insertion hole 44 is located above the current-carrying window 33 of the adhesive sheet 12, and the FFC 36 drawn out of the adhesive sheet 12 through the current-carrying window 33 is inserted into the base member 16 through the insertion hole 44. It is being As shown in FIG. 3, the FFC 36 having the current-carrying wires 34a to 34c has its folded and extended end side superimposed on the reinforcing plate 48 on the bottom surface of the base member 16.

Note that the bottom wall 38 of the base member 16 is superposed and fixed to the front surface of the adhesive sheet 12. The method of fixing the adhesive sheet 12 and the bottom wall 38 is not limited, and may be achieved by, for example, adhesion or welding.

In the present embodiment, in the adhesive sheet 12, the base member 16 (and the device body 18 attached to the base member 16) is attached to the attachment site (as shown in FIG. A region that overlaps the base member 16 and the device main body 18 in a plan view is provided. Then, on the adhesive sheet 12, two of the three measurement electrodes 14 (the first and

second measurement electrodes

14a, 14b) are positioned so that their respective centers are diagonally upward on the left and right sides. Further, the center of the remaining one of the three measurement electrodes 14 (third measurement electrode 14c) is positioned upward from the center of the attachment site of the base member 16 (device main body 18). Note that, although not limited to this, for example, the first measurement electrode 14a on the left side is used as a negative electrode, and the second measurement electrode 14b on the right side is used as a positive electrode. Further, the third measurement electrode 14c in the middle is an indifferent electrode.

Particularly, in this embodiment, in addition to the fact that the mounting portion of the base member 16 (apparatus main body 18) is biased downward in the vertical direction, the radius of curvature of the lower peripheral edge portion of the adhesive sheet 12 is smaller than that of the upper peripheral edge. Since the radius of curvature is larger than the radius of curvature of the base member 16 (apparatus main body 18), the shortest position from the center C of the installation site of the base member 16 (apparatus main body 18) to the outer edge of the adhesive sheet 12 is set below the base member 16 (apparatus main body 18). has been done. Then, the center C of the attachment part of the base member 16 (apparatus main body 18) is located at the position where the horizontal width dimension of the adhesive sheet 12 is the maximum (in this embodiment, the first measurement electrode 14a in FIG. The second measurement electrode 14b is set so as to be offset downward from a position approximately equal to a straight line connecting the centers of the second measurement electrodes 14b and extending left and right.

As shown in FIGS. 2 and 4, the device main body 18, which is removably attachable to the base member 16, is a hollow casing consisting of a bottom member 54 and a lid member 56 that are overlapped and fixed to each other. It has a body 58. The bottom member 54 and the lid member 56 are made of, for example, hard synthetic resin, and the internal space of the casing 58 formed between these overlapping surfaces contains an operation control device and a storage device for the electrocardiograph 10. It is a housing space 64 in which an electric circuit board 60 and a power supply battery are assembled in a housed state. In this embodiment, the battery is constituted by a button battery 62. Electronic components such as a CPU and a memory are mounted on the electric circuit board 60, and electrocardiogram information based on the detected potentials detected by each of the measurement electrodes 14a to 14c can be recorded.

Further, as an electronic component mounted on the electric circuit board 60, an LED lamp (not shown) may be used, and depending on the state of the electrocardiograph 10, for example, when the power is turned on, when wireless communication is connected, when an electrode is disconnected, etc. Therefore, LED lamps of different colors may be lit (including constant lighting or blinking). In this embodiment, two LED lamps are provided at the right side of the electrocardiograph 10 at a distance from each other in the vertical direction. As shown, each LED lamp includes a first lighting area 65a and a second lighting area 65b. The lighting of the LED lamps in the first and second lighting areas 65a and 65b can be visually recognized from the outside by, for example, making at least a portion of the casing 58 of the device main body 18 transparent (including colorless or colored). For example, a soft member 96, which will be described later, provided on the lid member 56 may be transparent.

In this embodiment, when the electrocardiograph 10 is powered on, as shown in FIG. At the time of wireless communication connection in 10, only the LED lamp in the second lighting area 65b is lit, as shown in FIG. 5(b). Further, if an abnormality occurs in the measurement of action potentials by each of the measurement electrodes 14a to 14c, for example, any of the measurement electrodes 14 (first to third measurement electrodes 14a to 14c) may be peeled off from the skin a of the human body A. , if any of the lead wires 32 (first to third lead wires 32a to 32c) and the energized wires 34a to 34c are disconnected, only the LED lamp in the first lighting area 65a is lit. It has become. As a result, in this embodiment, in the device main body 18, electrical continuity between the device main body 18 and each of the measurement electrodes 14a to 14c and/or between each of the measurement electrodes 14a to 14c and the skin a of the human body A is improved. A lead-off detection mechanism 67a is provided to detect the occurrence of an abnormality. A notification means 67b for notifying the patient to whom the electrocardiograph 10 is attached of the occurrence of an electrical conductivity abnormality detected by the lead-off detection mechanism 67a is an LED lamp (not shown) mounted on the electric circuit board 60. It is composed of:

Further, the lighting mode of the LED lamp according to the state of the electrocardiograph 10 is not limited, and when the lead-off detection mechanism 67 detects the occurrence of an abnormality in electrical continuity, the lighting mode shown in FIG. As shown in FIG. 5(b), both the LED lamps in the first and second lighting areas 65a and 65b may be lit, or as shown in FIG. 5(b), the LED lamps in the second lighting area 65b may be lit. It may be arranged so that only one of the two lights is lit. Incidentally, the occurrence of an abnormality in electrical conductivity is detected, for example, when the value of the potential detected by each of the measurement electrodes 14a to 14c deviates from a predetermined value set based on the normally assumed action potential. It may be as follows.

Further, the electronic components mounted on the electric circuit board 60 may include, for example, a wireless communication device such as BLE (Bluetooth Low Energy (registered trademark)) communication or Wi-Fi communication, or a computer equipped with a wireless receiver or the like. The electrocardiogram information recorded by the electrocardiograph 10 may be transmitted to a smartphone or the like, or a wired communication device such as a USB may be provided.

The bottom member 54 is a generally flat member as a whole, and includes a flat plate portion 66 that extends in a direction orthogonal to the front-rear direction. The bottom member 54 (flat plate part 66) has a rounded rectangular shape that is approximately the same shape as the base member 16 in plan view, and has an outer circumference that is slightly smaller than the base member 16 and is connected to the fitting peripheral wall 40 of the base member 16. It is said that it can be fitted. The outer peripheral edge of the flat plate part 66 has a larger thickness dimension (front-rear direction dimension), and the outer peripheral surface of the part where the thickness dimension has been increased has an annular engagement that extends continuously in the circumferential direction over the entire circumference. A matching groove 68 is provided. In addition, an appropriate number of screw holes 70 are formed in the flat plate portion 66 so as to pass through the flat plate portion 66 in the thickness direction.

Further, a substantially rectangular insertion hole 72 is formed through the bottom member 54 in the thickness direction, and a conductive rubber 74 as an elastic member having conductivity is inserted into the insertion hole 72. It is desirable that the conductive rubber 74 be inserted into the insertion hole 72 while maintaining sealing properties. Specifically, the conductive rubber 74 is inserted into the insertion hole 72 in a fitted state by, for example, pressing a seal protrusion protruding from the inner peripheral surface of the insertion hole 72 against the outer peripheral surface of the conductive rubber 74. . One end surface of the conductive rubber 74 in the thickness direction (the direction of insertion into the insertion hole 72) is connected to the electrical signal input portion of the electrical circuit board 60, thereby allowing signal input to the electrical circuit board 60. A terminal is constituted by the conductive rubber 74.

The longitudinal dimension of the conductive rubber 74 is larger than the longitudinal dimension of the insertion hole 72, and the other end surface of the conductive rubber 74 in the thickness direction protrudes outward from the outer surface (rear surface) of the bottom member 54. ing. Then, when the bottom member 54 is fitted into the base member 16 and the device main body 18 is attached, the other end surface of the conductive rubber 74 is placed on the FFC 36 superimposed on the reinforcing plate 48 of the base member 16. It is pressed against the formed conductive wires 34a to 34c to be electrically connected.

Note that the conductive rubber 74 is configured to electrically connect the three current-carrying wires 34a to 34c to the three input portions on the electric circuit board 60, respectively. Further, screw holes 76, 76 are provided at positions close to the insertion hole 72, and the conductive rubber 74 is stably held by tightening

screws

77, 77. In addition, in order to avoid the tightening screws 77, 77 from contacting or interfering with other members, screw holes 46, 49, 82 are formed in the base member 16, the reinforcing plate 48, and the waterproof double-sided tape 78 to be described later. Alternatively, the base member 16 and the bottom member 54 may be tightened with the tightening screws 77, 77 through the screw holes 46, 49, 82 to improve the stability of the electrical connection on both end surfaces of the conductive rubber 74. It is also possible to

Here, a waterproof double-sided tape 78 is provided on the rear surface of the bottom member 54 (the rear surface of the flat plate portion 66). This waterproof double-sided tape 78 is, for example, as large as or slightly larger than the reinforcing plate 48, and the end surface of the conductive rubber 74 is directed outward, where the FFC 36 is arranged, through an insertion window 80 provided at approximately the center. It stands out. Note that a waterproof double-sided tape 78 that tightly adheres to the surface of the reinforcing plate 48 when assembled to the base member 16 of the device main body 18, which will be described later, is applied around the exposed portions of the current-carrying wires 34a to 34c at the ends of the FFC 36. It is also tightly attached and fixed. Thereby, the waterproofness of the contact portions between the conductive rubber 74 and the current-carrying wires 34a to 34c can also be ensured.

As shown in FIG. 6, the lid member 56 includes an upper bottom wall 86 that extends in a direction orthogonal to the front-rear direction, and a peripheral wall portion 88 that protrudes rearward from the outer peripheral edge of the upper bottom wall 86. The upper bottom wall 86 has a generally rectangular shape with rounded corners in a plan view, and the peripheral wall portion 88 extends while being curved so as to gradually expand toward the rear. Thereby, the outer shape and size of the lid member 56 (apparatus main body 18) are substantially the same as those of the base member 16 in plan view. When the device main body 18 is assembled to the base member 16, the outer circumferential surface of the base member 16 and the outer circumferential surface of the device main body 18 (lid member 56) are smoothly continuous with substantially no difference in level.

In the space inside the peripheral wall portion 88 of the lid member 56, substantially cylindrical screw hole forming portions 90 that protrude rearward are provided at the four corners of the upper bottom wall 86. These screw hole forming portions 90 are formed at positions corresponding to the screw holes 70 in the bottom member 54. Furthermore, a substantially cylindrical battery holder portion 92 that protrudes rearward from the upper bottom wall 86 and positions the button battery 62 is integrally provided on the left portion of the inner surface of the lid member 56 . Note that a notch is provided in a part of the circumference of the battery holder portion 92, and when the button battery 62 is housed in the device main body 18, the conductive member that elastically protrudes from the electric circuit board 60 is cut out. The positive electrode of the button battery 62 can be brought into contact with the outer circumferential surface of the button battery 62 through the electrode, and the electric circuit board 60 and the positive electrode of the button battery 62 can be electrically connected to each other. A conductive member that elastically contacts the negative pole of the button battery 62 is provided on the surface of the electric circuit board 60. In this embodiment, the button battery 62 is housed in the battery holder part 92 in a non-fixed state (preferably with some play), and when the button battery 62 is removed as described later, the button battery 62 can be quickly removed. It can be easily removed.

Further, a button 94 as an operation switch is provided on the upper bottom wall 86 of the lid member 56 to the right of the battery holder portion 92. That is, the button 94 is constituted by a part of the upper base wall 86 and is provided on the right side of the upper base wall 86. The button 94 has a generally rectangular or trapezoidal shape in plan view, and is integrally and continuously connected to the left portion of the upper bottom wall 86 on the left side of the button 94 . This continuous portion is formed to be relatively thin, and a soft member 96 made of soft synthetic resin or the like is arranged around the button 94. Pushing is possible. Thereby, the button 94 can be pushed in without creating a gap around the button 94, and water can be prevented from entering the inside of the device main body through the gap around the button. Note that the button 94 is used not only as a power button for turning on the power of the device main body 18, as will be described later, but also as a button for setting the time by pressing the button 94 when, for example, the patient feels something strange about his or her heart. It may have a function as an event button that can be recorded in a memory or the like mounted on the electric circuit board 60.

Furthermore, an opening 98 is provided on the right side of the peripheral wall 88 and penetrates through the peripheral wall 88 in the thickness direction, and a USB terminal 100 to which a USB can be connected is fitted into the opening 98. ing. This USB terminal section 100 is electrically connected to electronic components mounted on the electric circuit board 60, and by connecting a USB to the USB terminal section 100, electrocardiogram information recorded on the electric circuit board 60 can be transferred to the USB terminal section 100. It is said that it can be imported into Note that when the USB is not in use, for example, by covering the USB terminal section 100 with a waterproof seal lid made of a separate component (not shown), water can be prevented from entering the inside of the device main body 18 through the USB terminal section 100.

The electrical circuit board 60 accommodated in the accommodation space 64 between the bottom member 54 and the lid member 56 is, for example, a synthetic resin board that extends in a direction orthogonal to the front-rear direction, and has a predetermined electrical element mounted on the surface thereof. It is constructed by printing and forming an electric circuit. As shown in FIG. 6, this electric circuit board 60 has a substantially rectangular shape with rounded corners in a plan view, and has cutouts at the four surrounding corners to avoid interference with the screw hole forming portion 90 of the lid member 56. A recess 102 is formed. In plan view, the size of the electric circuit board 60 is smaller than the lid member 56, and by overlapping the electric circuit board 60 from the opening side (rear side) of the lid member 56, the inside of the lid member 56 can be In the space, the screw hole forming portion 90 and the recess 102 also enable alignment of the electric circuit board 60 and the lid member 56. In this embodiment, the electric circuit board 60 is accommodated in the lid member 56 in a non-fixed state (preferably with some play), and when the electric circuit board 60 is removed as described later, the electric circuit board 60 can be quickly and easily removed.

As shown in FIGS. 4 and 6, the button battery 62 is housed in the battery holder part 92 of the lid member 56, and the electric circuit board 60 is placed on top of the button battery 62 from behind. The device main body 18 shown in FIGS. 2 and 4 is constructed by overlapping the bottom member 54 on the lid member 56 and fixing it with screws 104 at four locations around the periphery. As a result, the rear opening of the lid member 56 is covered by the bottom member 54, and the button battery 62 and the electric circuit board 60 are accommodated in the internal accommodation space 64. As a result, as described above, each conductive member on the electric circuit board 60 is held in contact with both poles of the button battery 62, and power is supplied from the button battery 62 to the electric circuit board 60. That is, by fixing the bottom member 54 and the lid member 56 to each other, the contacts of both poles provided on the electric circuit board 60 are held in contact with each pole of the button battery 62. ing. Note that by fixing the bottom member 54 and the lid member 56 with the screws 104, the button battery 62 and the electric circuit board 60 can be housed in the accommodation space 64 without wobbling, but the lid member 56 is simply fixed. As described above, when the button battery 62 and the electric circuit board 60 are placed on the cover member 56 (before the bottom member 54 is attached), the button battery 62 and the electric circuit board 60 are placed in the overlapping direction with respect to the lid member 56. So, it is accommodated freely to some extent. Further, the front end of the conductive rubber 74 protruding forward from the bottom member 54 contacts the electric circuit provided on the rear surface of the electric circuit board 60, and the conductive rubber 74 and the electric circuit board 60 are electrically connected. Ru.

The base member 16 and the device main body 18 as described above are assembled to each other. That is, by making the base member 16 and the device main body 18 face each other and pushing the device main body 18 into the base member 16, the outer circumferential end of the flat plate portion 66 in the bottom member 54 can close the fitting peripheral wall 40 in the base member 16. The engaging claw 42 is pressed toward the outer circumferential side and is elastically deformed. Then, by further pushing the device main body 18 into the base member 16, the fitting circumferential wall 40 and the engaging claw 42 are elastically deformed, so that the engaging claw 42 of the base member 16 moves into the engaging groove of the bottom member 54. 68 in a substantially tight state. In short, the base member 16 and the device main body 18 (bottom member 54) are urged toward each other by utilizing the elasticity of the fitting circumferential wall 40 including the engaging claws 42. Even if an external force is applied that causes the base member 16 to move away from the base member 16, the assembled state of the base member 16 and the device main body 18 is maintained due to the elastic restoring force of the engaging claws 42 and the fitting peripheral wall 40. Based on the fitting effect of the fitting peripheral wall 40 on the outer peripheral portion of the device main body 18, the device main body 18 and the base member 16 are held in an overlapping state, and the base member 16 and the device main body 18 (bottom member 54) This will also improve the waterproofness between the two.

In addition, when the engagement claw 42 is engaged with the engagement groove 68 and the base member 16 and the device main body 18 are aligned, the screw holes 46 and 49 on the base member 16 side that communicate with each other are connected to the device main body. The base member 16 and the device main body 18 may be screwed together by inserting the tightening screws 77, 77 into the screw holes 76 and 82 on the 18 side. In this case, these tightening

screws

77, 77 may be able to be fastened to the device main body 18 with the adhesive sheet 12 fixed to the base member 16, or the tightening screws 77, 77 may The adhesive sheet 12 may be fixed to the base member 16 after it is fastened to the device main body 18.

That is, as shown in FIG. 4, the bottom wall 38 of the base member 16 and the bottom member 54 of the device main body 18 are connected to each other via the reinforcing plate 48 and the waterproof double-

sided tapes

50 and 78 located on both the front and back sides of the reinforcing plate 48. are superimposed and fixed. As a result, the waterproof double-sided tape 78 is pasted on the reinforcing plate 48, and in addition to locking the engaging claw 42 in the engaging groove 68, the waterproof double-sided tape 78 is attached (and the tightening screw 77 is attached as necessary). , 77), the base member 16 and the device main body 18 are also fixed. As a result, each of the conductive wires 34a to 34c exposed on the reinforcing plate 48 in the base member 16 and the conductive rubber 74 exposed rearward in the base member 16 come into contact with each other and are electrically connected. In particular, in this embodiment, when the base member 16 and the device main body 18 are fixed, the conductive rubber 74 connects the electric circuit board 60 and each of the conductive wires 34a to 34c (and the hard reinforcing plate 48 located behind them). ), and its elastic restoring force maintains stable contact between the conductive rubber 74 and the electric circuit board 60 and between the conductive rubber 74 and each of the conductive wires 34a to 34c. It looks like this.

Therefore, in this embodiment, between the base member 16 and the device main body 18, each of the conductive wires 34a to 34c on the base member 16 side and the conductive rubber 74 on the device main body 18 side come into contact in the overlapping direction (front-back direction). A connector portion 108 is formed by the contact points between each of the current-carrying wires 34a to 34c and the conductive rubber 74. Then, each measurement electrode 14a to 14c is energized to an electric circuit provided on an electric circuit board 60 on the apparatus main body 18 side through the connector part 108, that is, through each energizing wire 34a to 34c and the conductive rubber 74. It has become.

Further, in the connector portion 108, the contacts on the base member 16 side (each of the current-carrying wires 34a to 34c) and the contacts on the device main body 18 side (the rear end of the conductive rubber 74) are brought into contact with each other in a biased state in the stacking direction. The biasing member includes a conductive rubber 74 and a base member 16 including an engaging claw 42 and a fitting peripheral wall 40 that bias the base member 16 and the device body 18 in a direction toward each other. Furthermore, a waterproof double-sided tape 50 having elasticity in the thickness direction may be included as a biasing member, located behind each of the current-carrying wires 34a to 34c. That is, the conductive rubber 74, the base member 16, and the waterproof double-sided tape 50 overlap the contacts on the base member 16 side (each of the current-carrying wires 34a to 34c) and the contacts on the device main body 18 side (the rear end of the conductive rubber 74). It is biased in the direction. Then, the contacts on the base member 16 side (each of the current-carrying wires 34a to 34c) and the contacts on the device main body 18 side ( The overlapping state with the rear end portion of the conductive rubber 74 in a biased state is maintained more stably.

The electrocardiograph 10 as described above is used by being attached to the skin a of the human body A, as shown in FIG. That is, the release liner 28 is peeled off from the initial state before use shown in FIG. 1 to expose the adhesive layer 24 on the adhesive sheet 12. Then, this electrocardiograph 10 is attached to the skin a of the human body A, and each of the measurement electrodes 14a to 14c is placed at a predetermined position on the human body A. The manner in which the electrocardiograph 10 is attached (the positions of the measurement electrodes 14a to 14c) can be selected as appropriate depending on the waveform to be measured depending on the disease of the patient and the like.

Thereafter, the button 94 is pressed to turn on the power, and the action potentials at each of the measurement electrodes 14a to 14c are detected by a CPU provided on the electric circuit board 60, for example, according to a predetermined program. The electrocardiogram information obtained based on this detected potential is recorded, for example, in a memory on the electric circuit board 60, and can be sent at any timing, for example, after the end of measurement, after the onset of symptoms, or in real time, for example, via BLE communication. or via USB to a computer or smartphone. In addition, after the electrocardiogram information is transmitted to a storage medium such as an external computer, it may be deleted from the on-board memory, or when the electrocardiogram information is transmitted in real time to an external storage medium and stored. does not need to be stored in the memory on the base. Acquisition of electrocardiogram information by each of the measurement electrodes 14a to 14c is performed over several days or weeks, for example. When the predetermined measurement period expires, the detection of action potentials by each of the measurement electrodes 14a to 14c and the recording of electrocardiogram information in the memory are completed, and the LED lamps mounted on the electric circuit board 60 are turned on in a predetermined manner. Thereafter, the electrocardiograph 10 is removed from the skin a of the human body A.

Note that when replacing the button battery 62 and electric circuit board 60 inside the device main body 18, the bottom member 54 and the lid member 56 can be separated by removing the screws 104 that screw the bottom member 54 and the lid member 56 together. The button battery 62 and the electric circuit board 60 can be taken out from the housing 58 by opening it.

According to the electrocardiograph 10 of the present embodiment, in the connector portion 108, the contacts on the base member 16 side (the current carrying wires 34a to 34c) and the contacts on the device main body 18 side (the rear end of the conductive rubber 74) overlap. Since they are in biased contact in the mating direction, the conductive state between both contacts is maintained stably even when the patient moves significantly during measurements over several days or weeks, for example. The biasing members that bring these two contacts into contact in a biased state are the conductive rubber 74, the fitting peripheral wall 40 (base member 16) having the engagement claws 42, and the waterproof double-sided tape 50.

In particular, in the connector portion 108, by employing the conductive rubber 74, which is an elastic member, as the biasing member and arranging the conductive rubber 74 in a compressed state between the electric circuit board 60 and each of the conductive wires 34a to 34c, While electrically connecting the electric circuit board 60 and each of the conductive wires 34a to 34c, elastic restoring force brings the conductive rubber 74 into contact with the electric circuit board 60, and the conductive rubber 74 and each of the conductive wires 34a to 34c. can maintain stable contact. Furthermore, by employing the conductive rubber 74 in the connector portion 108, the assembly structure of the device main body 18 and the base member 16 can be made lighter and smaller than, for example, when a mechanical conductive connector is employed. This is achieved, and the feeling of wearing the electrocardiograph 10 is reduced.

Furthermore, a reinforcing plate 48 as a contact support part is provided on the inner surface of the bottom wall 38 of the base member 16. This not only makes it possible to support and reinforce each of the energizing wires 34a to 34c arranged exposed on the front surface of the reinforcing plate 48, but also to further reduce the distance between each of the energizing wires 34a to 34c and the electric circuit board 60. It can be made smaller and the conductive rubber 74 can be placed in a more compressed state. As a result, a larger biasing force is obtained as an elastic restoring force, so that the conduction state between the electric circuit board 60, the conductive rubber 74, and each of the current-carrying wires 34a to 34c can be maintained more stably.

Furthermore, in this embodiment, the button battery 62 and the electric circuit board 60 are housed in the housing space 64 of the housing 58 in the device main body 18, and the battery holder section 92 that positions the button battery 62 holds the housing 58. It is integrally formed with the constituting lid member 56. Thereby, for example, the battery holder portion 92 for positioning the button battery 62 can be provided more easily without providing a structure for positioning the button battery on the electric circuit board.

In particular, since the housing 58 is composed of a bottom member 54 and a lid member 56, and the button battery 62 and the electric circuit board 60 can be removed by opening the bottom member 54 and the lid member 56, the button battery 62 and the electric circuit board 60 can be removed. 62 and the electric circuit board 60 can be easily replaced. Since the button battery 62 and the electric circuit board 60 are arranged freely to some extent with respect to the lid member 56, the lid member 56 can be opened by simply turning the lid member 56 upside down with the screws 104 removed and the bottom member 54 removed. The button battery 62 and the electric circuit board 60 can be taken out quickly and easily.

Furthermore, in this embodiment, three measurement electrodes (first to third measurement electrodes 14a to 14c) are provided, and each of the centers of each measurement electrode 14a to 14c is connected to the base member 16 and the device main body. The position is set above the center C of the attachment site No. 18. As a result, when the electrocardiograph 10 is attached to the human body A with the vertical direction in FIG. can be placed. As a result, the center of gravity of the electrocardiograph 10 is shifted downward, and the adhesion to the human body A that is supported in a suspended state is more difficult than when, for example, the base member or the main body of the device is provided in the upper part of the adhesive sheet. It becomes easy to ensure a large area of the area, and it is possible to prevent the problem of the adhesive sheet peeling off due to the weight of the base member or the main body of the device.

Further, the adhesive sheet 12 has a curved shape in which the upper peripheral edge portion has a smaller radius of curvature than the lower peripheral edge portion, and the center C of the mounting portion of the base member 16 and the device main body 18 is By setting the adhesive sheet 12 to be biased downward from the position where the width dimension in the left and right direction is the maximum, the adhesive sheet 12 is set so that the width dimension in the left and right directions is A large area can be secured. As a result, each of the measurement electrodes 14a to 14c can be arranged by making good use of this area, and a sufficient adhesion area can be ensured, which is effective in preventing the measurement electrodes 14a to 14c from shifting from their predetermined positions. is prevented.

Furthermore, the electrocardiograph 10 of this embodiment includes a lead-off detection mechanism 67a in the device main body 18 that detects the occurrence of abnormality in electrical conductivity when measuring action potentials at each of the measurement electrodes 14a to 14c. . Moreover, the occurrence of an abnormality detected in the lead-off detection mechanism 67a is notified to the patient by the notification means 67b. As a result, even if any of the measurement electrodes 14a to 14c is peeled off from the skin a of the human body A, or if any of the lead wires 32a to 32c and the current carrying wires 34a to 34c are disconnected, such an abnormality can be detected. The patient can quickly grasp the occurrence of abnormalities and take action to eliminate the abnormality. In particular, since the electrocardiograph 10 according to the present invention acquires electrocardiogram information over a relatively long period of time, by eliminating abnormalities early, the time during which measurements are impossible can be shortened and measurements can be made. It is possible to avoid a delay in diagnosis due to correction and reduce the burden on the patient due to re-measurement.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited by the specific description.

In the embodiment described above, in the connector portion 108, the contacts on the base member 16 side (each of the energizing wires 34a to 34c) and the contacts on the device main body 18 side (the rear end of the conductive rubber 74) are attached in the overlapping direction (front-back direction). Although the biasing member to be biased was composed of the conductive rubber 74, the base member 16 having the engaging claws 42 and the fitting peripheral wall 40, and the waterproof double-sided tape 50, for example, the biasing member may be any one of the above. It suffices if it is configured by For example, if the conductive rubber is compressed between the electric circuit board and each current-carrying wire, and the conductive rubber and each current-carrying wire are in contact with each other in an energized state, the fixing structure between the base member and the main body of the device is implemented as described above. The embodiment is not limited to the illustrated embodiment, and the base member does not necessarily have an elastic engagement claw or a fitting peripheral wall. Of course, even if the base member is provided with an engaging pawl or a fitting circumferential wall, the engaging pawl 42 will be locked in the engaging groove 68 that opens on the outer circumferential surface of the device main body 18 as in the above embodiment. Although not limited to the embodiment, an engagement groove is provided on the inner circumferential surface of the circumferential wall that protrudes rearward from the outer circumferential end of the device main body, and a fitting circumferential wall that has an engagement claw that protrudes toward the outer circumferential side of the base member is provided. By being provided, the engagement claw of the base member may be engaged with the engagement groove of the device main body from the inner peripheral side.

Further, in the embodiment described above, the conductive rubber 74 is provided to electrically connect the electric circuit board 60 and each of the current-carrying wires 34a to 34c, and connect the contacts on the base member 16 side and the contacts on the device main body 18 side. For example, there is a member that electrically conducts the electric circuit board and each current-carrying wire, and a member that brings the contacts on the base member side and the contacts on the device body into contact in a biased state. A separate member may be employed. For example, while employing a conductive member that electrically connects the electric circuit board and each current-carrying wire, a coil spring or plate is used as a biasing member that urges the electric circuit board and each current-carrying wire in a direction toward each other. A member such as a spring may be separately employed to improve the stability of the contact between the electric circuit board and the conductive member and/or the contact between each current-carrying wire and the conductive member.

In the embodiment described above, the waterproof double-sided tape 78 is provided on the rear surface of the device main body 18, and the adhesive effect of the waterproof double-sided tape 78 improves the fixing force between the device main body 18 and the base member 16. The member may be fixed with, for example, a hook-and-loop fastener instead of the waterproof double-sided tape. As a result, the electrocardiograph according to the present invention can be used for multiple different patients by using a common device body and replacing the base member and adhesive sheet, and the device body can be used multiple times. .

Note that, as described above, the base member 16 and the device main body 18 may be screwed together using the tightening screws 77, 77, but such a screwing structure is not essential, and a screwing structure is adopted. Alternatively, instead of the waterproof double-sided tape 78, for example, a hook-and-loop fastener may be provided between the base member 16 and the device main body 18 as described above. Thereby, the device main body 18 may be removed from the base member 16 by simply separating the device main body 18 from the base member 16 and releasing the locking of the engagement claw 42 from the engagement groove 68. .

Further, the fixing structure between the bottom member and the lid member constituting the device main body is not limited to screwing, and conventionally known fixing structures such as locking by unevenness or press-fitting can be adopted.

In the embodiment described above, the reinforcing plate 48 which is a separate member from the bottom wall 38 is provided as a contact support part and is later fixed with waterproof double-sided tape 50, but the contact support part is formed integrally with the bottom wall. For example, the portions of the bottom wall that support the contacts (each of the current-carrying wires 34a to 34c) may be formed thick.

The electrocardiograph according to the present invention not only acquires electrocardiogram information using each measurement electrode, but also acquires time by using, for example, each measurement electrode or a measuring device other than the measurement electrode, in addition to electrocardiogram waveform information. Various numerical values such as the patient's heart rate, respiratory rate, internal sounds, acceleration, body temperature, blood pressure, and blood oxygen concentration may be measured and recorded, or may be transmitted to the outside of the device. Furthermore, in the embodiment described above, in the electrocardiograph 10, the device main body 18 was able to record electrocardiogram information in the memory inside the device or transmit it to the outside of the device, but the electrocardiograph according to the present invention It may be sufficient to have at least one of a recording function to the device and a transmitting function to the outside of the device.

The notification means for notifying the patient of the occurrence of an electrical conductivity abnormality detected by the lead-off detection mechanism is not limited to the mode in which the patient is notified by lighting an LED lamp as in the above embodiment, but can be used for specific purposes. It may be configured to generate a sound or voice, or it may be configured to send a notification of the occurrence of an abnormality to the patient's smartphone or the like by, for example, wireless communication.

10 Electrocardiograph 12 Adhesive sheet 14 Measuring electrode 14a First measuring electrode 14b Second measuring electrode 14c Third measuring electrode 16 Base member (biasing member, elastic member)
18 Device body 22 Protective sheet 24 Adhesive layer 26 Adhesive surface 28 Release liner 30 Through hole 32 Lead wire 32a First lead wire 32b Second lead wire 32c Third lead wire 33 Current-carrying

windows

34a, 34b, 34c Current-carrying wire 36 FFC (Flexible flat cable)
38 Bottom wall 40 Fitting peripheral wall 42 Engagement claw 44 Insertion hole 46 Screw hole 48 Reinforcement plate (contact support part)
49 Screw hole 50 Waterproof double-sided tape (biasing member, elastic member)
52 Recessed portion 54 Bottom member 56 Lid member 58 Housing 60 Electric circuit board 62 Button cell (battery)
64 Accommodation space 65a First lighting area 65b Second lighting area 66 Flat plate part 67a Lead-off detection mechanism 67b Notification means 68 Engagement groove 70 Screw hole 72 Insertion hole 74 Conductive rubber (biasing member, elastic member)
76 Screw hole 77 Tightening screw 78 Waterproof double-sided tape 80 Insertion window 82 Screw hole 86 Upper bottom wall 88 Peripheral wall 90 Screw hole forming portion 92 Battery holder portion 94 Button 96 Soft member 98 Opening 100 USB terminal portion 102 Recess 104 Screw 108 Connector part A Human body a Skin C Center of attachment site on device body

Claims

An electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information,
An adhesive sheet that is attached to the skin of the human body,
a plurality of measurement electrodes provided on the adhesive sheet and superimposed on the skin of the human body;
a base member provided on the outer surface of the adhesive sheet;
a device main body that is removably attachable to the base member and that transmits and/or records electrocardiogram information based on the potential detected by the measurement electrode;
The base member includes a bottom wall fixed to the adhesive sheet, and a fitting peripheral wall that holds the device main body in an overlapping state with respect to the base member based on a fitting action to the device main body. , while
A connector portion is provided between the base member and the device main body, and the connector portion includes contacts that are electrically connected by contacting each other in the overlapping direction, and the plurality of measurement electrodes are connected to the device main body side through the connector portion. It is designed to be electrically connected to the electric circuit of
An electrocardiograph comprising a biasing member that biases a contact point on the base member side and a contact point on the device main body side in the overlapping direction into contact with each other in the connector portion.
The biasing member is provided on at least one of the base member side and the device main body side of the connector portion, and biases the contact point on the base member side and the contact point on the device main body side in an overlapping direction. The electrocardiograph according to claim 1, wherein the electrocardiograph is made of an elastic member.
The electrocardiograph according to claim 1 or 2, wherein a contact support portion is provided on the inner surface of the bottom wall of the base member and protrudes from the inner surface of the bottom wall toward the connector portion.
An electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information,
An adhesive sheet that is attached to the skin of the human body,
a plurality of measurement electrodes provided on the adhesive sheet and superimposed on the skin of the human body;
a base member provided on the outer surface of the adhesive sheet;
a device main body that is removably attachable to the base member and that transmits and/or records electrocardiogram information based on the potential detected by the measurement electrode;
An electric circuit board and a battery for power supply are housed and assembled in the main body of the device, and
An electrocardiograph in which a battery holder portion for positioning the battery is provided on the inner surface of a casing of the device main body on which the electric circuit board is superimposed.
The battery is constituted by a button battery, and
In the casing of the apparatus main body, the bottom member and the lid member are overlapped and fixed to each other, so that a space for accommodating the electric circuit board and the button battery is formed between the overlapping surfaces. and
The battery holder portion is provided on the inner surface of one of the bottom member and the lid member, the electric circuit board is overlapped with the button battery arranged in the battery holder portion, and the bottom member and the lid member are provided with the battery holder portion. By fixing them to each other, the contacts of both poles provided on the electric circuit board are held in contact with the button battery, and the bottom member and the lid member are fixed to each other. The electrocardiograph according to claim 4, wherein the electrical circuit board and the button battery can be removed from the housing by opening the housing.
An electrocardiograph that is attached to a human body to transmit and/or record electrocardiogram information,
An adhesive sheet that is attached to the skin of the human body,
a plurality of measurement electrodes provided on the adhesive sheet and superimposed on the skin of the human body;
a base member provided on the outer surface of the adhesive sheet;
a device main body that is removably attachable to the base member and that transmits and/or records electrocardiogram information based on the potential detected by the measurement electrode;
The adhesive sheet is provided with three measurement electrodes,
The center of each of the first and second measurement electrodes on the left and right is diagonally upward from the center of the attachment site of the device main body, which is set at approximately the center in the left-right direction of the adhesive sheet and offset downward in the vertical direction. An electrocardiograph, in which the center of the third measurement electrode is set above the center of the attachment site of the device main body.
The adhesive sheet has a curved shape in which an upper peripheral edge portion has a smaller radius of curvature than a lower peripheral edge portion, and
The shortest position from the center of the attachment site of the device main body to the outer edge of the adhesive sheet is set below the device main body, and
7. The electrocardiograph according to claim 6, wherein the center of the attachment site of the device body is set to be offset downward from a position where the width dimension in the left-right direction of the adhesive sheet is maximum.
An electrocardiograph that is attached to a patient's body to transmit and/or record electrocardiogram information,
An adhesive sheet that is attached to the skin of the human body,
a plurality of measurement electrodes provided on the adhesive sheet and superimposed on the skin of the human body;
a base member provided on the outer surface of the adhesive sheet;
a device main body that is removably attachable to the base member and that transmits and/or records electrocardiogram information based on the potential detected by the measurement electrode;
The device main body is provided with a lead-off detection mechanism that detects occurrence of abnormality in electrical continuity between the device main body and the measurement electrode and/or between the measurement electrode and the skin of the human body. and an electrocardiograph comprising a notification means for notifying the patient of the occurrence of an abnormality in electrical conductivity detected by the lead-off detection mechanism.