Electrocardiogram measuring device, electrocardiogram measuring system including the same, and method thereof

Abstract

The electrocardiogram measurement system according to the present invention comprises a sensing unit electrically connected to an electrocardiogram measurement device capable of changing displacement to sense an electrocardiogram signal, and electrically connected to an external sensor to sense a change in the subject's behavioral state corresponding to the electrocardiogram signal; and a calculation control unit that first corrects the waveform motion and noise of the electrocardiogram signal based on the change in behavioral state, derives a first-order correction value corresponding to the change in behavioral state, divides the first-order corrected electrocardiogram signal and the standard electrocardiogram signal into preset feature intervals of the electrocardiogram signal to derive feature values, compares the feature values, defines the subject's behavioral state via the change in behavioral state, and derives a second-order correction value for differential correction corresponding to the subject's behavioral state via machine learning, wherein the change in behavioral state value is reflected in the first-order correction and again in the second-order correction.

Description

Technical Field

[0001] The present invention relates to an electrocardiogram measurement system. More specifically, it relates to a differential compensation system and method capable of improving the clarity of a measured electrocardiogram by comparing electrocardiogram signal waveforms measured through an electrocardiogram measurement device capable of displacement change that can minimize noise by variably measuring the electrocardiogram measurement position according to the body of the subject to be measured.

Background Art

[0002] An electrocardiogram (ECG), which is one of the biological information, records the action current generated while the cardiac muscle contracts and relaxes due to the pulsation of the heart.

[0003] Through this, after attaching electrodes to the skin to measure the action current due to the contraction of the cardiac muscle, the measured current data can be shown.

[0004] More specifically, when the cardiac muscle contracts and relaxes due to the heartbeat, the action potential generated causes a current to be transmitted from the heart to the whole body. The transmitted current generates a potential difference depending on the position of the body, and this can be detected and recorded through the surface electrodes attached to the skin.

[0005] Through this, it is used to confirm the presence or absence of heart abnormalities and is used in the diagnosis of heart diseases such as angina, myocardial infarction, and arrhythmia.

[0006] Recently, electrocardiogram measurement devices have been developed that can measure the heart rate wirelessly by connecting electrodes for measuring the heart rate using not only wired communication but also wireless communication.

[0007] However, such conventional electrocardiogram measurement devices have a problem that the quality of the measured heart beat signal may deteriorate due to external factors such as the body shapes of various subjects to be measured and the postures and actions of the subjects to be measured.

Prior Art Documents

[0008] Patent Document 1: Korean Published Patent Publication No. 10-2020-0080755 (2020.07.07.) Patent Document 2: Korean Published Patent Gazette No. 10-2020-0111580 (September 29, 2020) Patent Document 3: Korean Published Patent Gazette No. 10-2012-0068264 (June 27, 2012) [Overview of the project] [Problems that the invention aims to solve]

[0009] The present invention aims to solve the above-mentioned problems and provides an electrocardiogram measuring device that allows for displacement changes, where the position of one of multiple electrode parts can be changed based on any one of them, by forming a rotating region in the base part.

[0010] Furthermore, the present invention aims to solve the above-mentioned problems and provides an electrocardiogram measurement system that can improve the disease diagnosis rate by improving the clarity of electrocardiogram signal waveforms, which are used as core indicators in the diagnosis of heart disease.

[0011] The challenge is to provide an electrocardiogram measurement method that can improve the clarity of electrocardiogram waveforms that are altered by external environmental factors (movement, pressure, etc.).

[0012] The problems that the present invention addresses are not limited to those mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0013] To solve the above-mentioned problems, an electrocardiogram measuring device with changeable displacement according to one embodiment of the present invention is a device attached to the body for measuring an electrocardiogram, comprising a base portion having a rotational region formed therein, and a plurality of electrode portions provided at the lower part of the base portion and in contact with the body to form at least one signal channel, wherein the electrode portions can be configured so that the position of one of the plurality of electrode portions can be changed based on any one of them by the rotational region.

[0014] An electrocardiogram measuring device with displacement change capability according to one embodiment of the present invention having the configuration described above may further include an extension unit that is rotatably connected to the base unit and forms an additional signal channel with the electrode unit.

[0015] Specifically, the extension may include a main body rotatably connected to the rotational region of the base, and an additional electrode provided on the lower surface of the main body so as to be in contact with the body, electrically connected to the electrode, and forming an additional signal channel with the electrode.

[0016] The main body may have an inclined pivot axis with respect to the pivot axis of the rotation region.

[0017] Furthermore, the main body may be provided to have a preset range of rotation and to be fixed at at least one angle within that range of rotation.

[0018] Here, the length of at least one of the base portion and the main body of the extension portion can be made variable.

[0019] The base portion may be formed to be elongated in one direction and comprise a first pad, one side of which is connected to one side of the rotation region, and a second pad, one side of which is connected to the other side of the rotation region, so as to be able to rotate with respect to the first pad.

[0020] The electrode part can include a reference electrode provided on the lower surface of the rotation region, a first electrode provided on the lower surface of the other side of the first pad to form a first signal channel, and a second electrode provided on the lower surface of the other side of the second pad to form a second signal channel.

[0021] The base part can be provided with the first pad and the second pad having different lengths from each other.

[0022] On the other hand, the rotation region can have a tilted rotation axis based on a virtual reference axis perpendicular to the lower surface of the base part.

[0023] An electrocardiogram measurement system for solving the above problems is a system for improving the clarity of an electrocardiogram signal. It is electrically connected to an electrocardiogram measurement device capable of changing displacement as described above to sense the electrocardiogram signal, and is electrically connected to an external sensor to sense a change value of the behavior state of the subject corresponding to the electrocardiogram signal. A sensing unit, based on the change value of the behavior state, performs a primary correction on the movement and noise of the waveform of the electrocardiogram signal, derives a primary correction value corresponding to the change value of the behavior state, divides the primarily corrected electrocardiogram signal and the standard electrocardiogram signal into preset characteristic intervals of the electrocardiogram signal to derive characteristic values, compares the characteristic values, defines the behavior state of the subject through the change value of the behavior state, and an arithmetic control unit that derives a secondary correction value for differential correction according to the behavior state of the subject through machine learning. The change value of the behavior state can be reflected in the primary correction and can be reflected again in the secondary correction.

[0024] Here, the arithmetic control unit can apply the derived primary correction value and secondary correction value to the electrocardiogram signal to finally correct the electrocardiogram signal.

[0025] Specifically, the characteristic values can include the deviation between the maximum value and the minimum value of the waveform of the primarily corrected electrocardiogram signal and the standard electrocardiogram signal waveform and the deviation by interval preset.

[0026] And the external sensor can be an acceleration sensor and a pressure sensor.

[0027] At this time, the behavior state change value can include the acceleration sensor value when the measured person is in a state of no movement, the acceleration sensor value when the measured person is in a state of movement, and the pressure sensor value due to an external push.

[0028] The electrocardiogram measurement system having the above-described configuration can further include an event signal recording and analysis unit that is linked with the arithmetic control unit and compares the electrocardiogram signal with a preset event signal to detect a danger signal.

[0029] The electrocardiogram measurement method for solving the above problems is a measurement method for improving the clarity of an electrocardiogram signal performed by the above-described electrocardiogram measurement system. The method includes a primary correction step for correcting the movement and noise of the electrocardiogram signal waveform based on the behavior state change value transmitted from the sensing unit by the arithmetic control unit, a division step for dividing the corrected electrocardiogram signal and the standard electrocardiogram signal into preset characteristic intervals and deriving characteristic values by the arithmetic control unit, a secondary correction step for deriving a secondary correction value for differential correction according to the behavior state of the measured person through machine learning by the arithmetic control unit, and a noise removal and clarity improvement step for applying the derived primary correction value and secondary correction value to the electrocardiogram signal and finally correcting the electrocardiogram signal by the arithmetic control unit. In the secondary correction step, the arithmetic control unit can reflect the behavior state change value confirmed through the acceleration sensor and the pressure sensor in the secondary correction again.

[0030] Specifically, the primary correction step can include a process of primarily correcting the movement and noise of the electrocardiogram signal waveform based on the behavior state change value, and a process of deriving a primary correction value corresponding to the behavior state change value.

[0031] The secondary correction step may include a process of comparing the feature values, a process of defining the subject's behavioral state via the behavioral state change values, and a process of deriving a secondary correction value for differential correction corresponding to the subject's behavioral state via machine learning. [Effects of the Invention]

[0032] The electrocardiogram measuring device of the present invention, which allows for displacement changes, has the effect of enabling more accurate measurements by changing the position of one of the multiple electrode parts based on one of them to suit the body of the person being measured.

[0033] Furthermore, the electrocardiogram measuring device of the present invention, which allows for displacement changes, is equipped with an expansion unit that can generate additional signal channels by adding an additional electrode, and is attached more stably to the body of the person being measured, thereby minimizing interference from external factors such as the posture and actions of the person being measured.

[0034] According to the electrocardiogram measurement system and method of the present invention, the accuracy of electrocardiogram analysis can be improved by improving the clarity of the electrocardiogram signal waveform through weighted value redesign via comparison of the electrocardiogram signal waveform of the subject measured during electrocardiogram measurement with a standard electrocardiogram signal waveform.

[0035] The effects of the present invention are not limited to those mentioned above, and any further effects not mentioned can be clearly understood by those skilled in the art from the description of the claims. [Brief explanation of the drawing]

[0036] The abstract described above, as well as the detailed description of preferred embodiments of this application described below, will be better understood when read in conjunction with the accompanying drawings. For illustrative purposes, preferred embodiments are illustrated in the drawings. However, it should be understood that this application is not limited to the exact arrangements and means shown. [Figure 1]An electrocardiogram measurement system according to one embodiment of the present invention will be described. [Figure 2] An electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention is described. [Figure 3] The rotation of an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention will be described. [Figure 4] The position to which a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention is attached is described. [Figure 5] This invention describes how an electrocardiogram measuring device with a displacement changeable structure according to one embodiment of the present invention has a rotatable structure, which allows for the measurement of voltage (electrocardiogram) at various positions. [Figure 6] This invention describes an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention, in which the rotational range of the base portion is provided to be fixed at a predetermined rotational range and at an angle within the rotational range. [Figure 7] This invention describes an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention, in which the rotation axis of the rotation region is inclined. [Figure 8] This invention describes a configuration in which a first pad and a second pad are provided with the same length in an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention. [Figure 9] A modified example of an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention is described, in which the first pad and the second pad are provided with different lengths from each other. [Figure 10] The variable region of the base portion of an electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention will be described. [Figure 11] A control unit in an electrocardiogram measuring device capable of changing displacement according to one embodiment of the present invention will be described. [Figure 12] The divided arrangement of the control unit in an electrocardiogram measuring device with displacement change capability according to one embodiment of the present invention will be described. [Figure 13] The overall shape of an electrocardiogram measuring device with an added extension, which allows for displacement modification according to another embodiment of the present invention, will be described. [Figure 14]This describes a shape in which the expansion portion is formed at a different position in an electrocardiogram measuring device with displacement change capability according to another embodiment of the present invention. [Figure 15] This section describes a multi-purpose protective film provided in an electrocardiogram measuring device with displacement modification capabilities according to another embodiment of the present invention. [Figure 16] An electrocardiogram measurement method according to one embodiment of the present invention will be described. [Figure 17] The detailed process of an electrocardiogram measurement method according to one embodiment of the present invention will be described. [Modes for carrying out the invention]

[0037] Hereinafter, preferred embodiments of the present invention, in which the objectives of the present invention can be specifically realized, will be described with reference to the attached drawings. In describing these embodiments, the same names and reference numerals will be used for the same components, and any further explanation thereof will be omitted.

[0038] Figure 1 is a diagram illustrating an electrocardiogram measurement system according to one embodiment of the present invention; Figure 2 is a diagram illustrating a displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention; Figure 3 is a diagram illustrating the rotation of a displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention; Figure 4 is a diagram illustrating the position to which the displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention is attached; Figure 5 is a diagram illustrating how the displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention has a structure that allows it to rotate, enabling it to measure voltage (electrocardiogram) at various positions; Figure 6 is a diagram illustrating how the rotation area of ​​the base portion of the displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention is provided to be fixed at an angle within a preset rotation range; Figure 7 is a diagram illustrating how the rotation axis of the rotation area of ​​the displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention is tilted; Figure 8 is a diagram illustrating how the first pad and the second pad are provided to be of the same length in the displacement-adjustable electrocardiogram measurement device according to one embodiment of the present invention. Figures are provided, and Figure 9 is a diagram illustrating a modified example in which the first pad and the second pad are provided with different lengths in a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, Figure 10 is a diagram illustrating the variable region of the base portion in a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, Figure 11 is a diagram illustrating the control unit in a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, Figure 12 is a diagram illustrating the divided arrangement of the control unit in a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, Figure 13 is a diagram illustrating the overall shape in which an extension portion has been added in a displacement-adjustable electrocardiogram measuring device according to another embodiment of the present invention, Figure 14 is a diagram illustrating the shape in which an extension portion is formed at another position in a displacement-adjustable electrocardiogram measuring device according to another embodiment of the present invention, Figure 15 is a diagram illustrating a multi-purpose protective film provided in a displacement-adjustable electrocardiogram measuring device according to another embodiment of the present invention, Figure 16 is a diagram illustrating an electrocardiogram measuring method according to one embodiment of the present invention, and Figure 17 is,This is a diagram illustrating the detailed process of an electrocardiogram measurement method according to one embodiment of the present invention.

[0039] As shown in Figure 1, an electrocardiogram measurement system according to one embodiment of the present invention is a system for improving the clarity of electrocardiogram signals, and can be broadly comprised of a sensing unit 1 and a calculation control unit 2.

[0040] First, the sensing unit 1 is electrically connected to an electrocardiogram measuring device 10 that includes at least one electrode and is capable of changing displacement, so that it can sense electrocardiogram signals.

[0041] Here, the electrocardiogram measuring device 10 capable of changing displacement, as described above, will be explained in detail after the configuration of the electrocardiogram measuring system is described.

[0042] The sensing unit 1 is electrically connected to an external sensor and can detect changes in the subject's behavioral state corresponding to the electrocardiogram signal.

[0043] Here, the external sensors can be acceleration sensors and pressure sensors, and the behavioral state change values ​​described above can include sensing values ​​for at least one of the following states: a state of no movement, a state of movement, and a state in which pressure is measured due to external pressure.

[0044] In other words, the sensing unit 1 can sense the electrocardiogram signal so that the calculation control unit 2 can confirm the electrocardiogram signal or predict the behavioral state of the person being measured, and can sense the change in behavioral state in real time.

[0045] Next, the arithmetic control unit 2 can perform a first-order correction on the waveform motion and noise of the electrocardiogram signal based on the behavioral state change values ​​described above.

[0046] The arithmetic control unit 2 can correct noise and unclear inflection points in the electrocardiogram signal waveform measured via the first-order correction described above.

[0047] For example, the arithmetic control unit 2 can remove the movement and noise of the baseline of the electrocardiogram signal waveform described above.

[0048] For example, the calculation control unit 2 can derive an electrocardiogram signal waveform in which the final baseline has been aligned through motion and noise correction estimated from the sensing values ​​measured by the external sensor of the sensing unit 1 described above.

[0049] In other words, the arithmetic control unit 2 derives a first-order correction value corresponding to the behavioral state change value described above, and can derive an electrocardiogram signal waveform in which motion and noise have been corrected through the first-order correction.

[0050] However, even with the primary correction described above, in some cases, characteristic intervals of the electrocardiogram signal waveform (for example, the PQRST waveform, which is used as a core indicator in the diagnosis of cardiac diseases including angina pectoris, myocardial infarction, and arrhythmias) may not be clearly derived.

[0051] To solve this, the arithmetic control unit 2 can divide the first-order corrected electrocardiogram signal and the pre-stored standard electrocardiogram signal into pre-set feature intervals that include the aforementioned feature intervals, and derive feature values.

[0052] For example, the arithmetic control unit 2 can derive an electrocardiogram signal waveform that has been corrected for motion and noise through first-order correction, then divide the waveform into the feature sections described above, and derive feature values ​​including the deviation values ​​for each section by utilizing a standard electrocardiogram signal that includes existing publicly available data.

[0053] If the aforementioned feature values ​​can be derived, then the feature intervals can be varied, and it goes without saying that this does not limit the scope of the rights of the present invention.

[0054] However, to illustrate with an example for a more detailed explanation, the characteristic interval can be the PQRST wave interval, which is used as a core indicator in the diagnosis of cardiac disease.

[0055] In this case, the feature values ​​mentioned above may include standard scores.

[0056] For example, the feature values ​​may include the deviation between the maximum and minimum values ​​of the first-order corrected electrocardiogram signal waveform and the standard electrocardiogram signal waveform, as well as pre-defined interval deviations.

[0057] Through this, the calculation control unit 2 can derive differential compensation values ​​for each behavioral state of the person being measured.

[0058] Specifically, the arithmetic control unit 2 compares the characteristic values ​​of the electrocardiogram signal waveform described above with the characteristic values ​​of the standard electrocardiogram signal waveform, defines the subject's behavioral state via the behavioral state change values ​​described above, and then performs machine learning for differential compensation corresponding to the subject's behavioral state to derive a second-order correction value.

[0059] Finally, the calculation control unit 2 can apply the derived primary and secondary correction values ​​to the electrocardiogram signal to perform the final correction of the electrocardiogram signal.

[0060] Therefore, by applying behavioral state change values ​​measured by acceleration sensors, pressure sensors, etc., to electrocardiogram signals that change according to the state, it is possible to ensure clarity of the electrocardiogram signal in a normal state (relaxed state) and to remove noise from the electrocardiogram signal waveform caused by external environmental changes such as movement, thereby improving clarity.

[0061] In summary, the arithmetic control unit 2 can reflect the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor into the above-mentioned primary and secondary corrections, respectively.

[0062] In other words, the arithmetic control unit 2 can reflect the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor in the first-order correction described above, and can also reflect the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor again in the second-order correction described above.

[0063] Ultimately, as described above, by applying the primary and secondary correction values ​​derived from the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor, respectively, to the electrocardiogram signal and performing a final correction, the clarity of the electrocardiogram waveform, which may decrease depending on the subject's behavioral state, can be improved.

[0064] An electrocardiogram measurement system according to one embodiment of the present invention having the above-described configuration may further include an event signal recording and analysis unit 3.

[0065] The event signal recording and analysis unit 3 works in conjunction with the calculation control unit 2 to detect danger signals by comparing the electrocardiogram signal with a preset event signal.

[0066] For example, as described above, the event signal recording and analysis unit 3 can detect a danger signal for heart disease by comparing the electrocardiogram signal waveform, which has had noise removed and its clarity improved, with the aforementioned cardiac disease event signal waveform that has been stored in advance.

[0067] Furthermore, the event signal recording and analysis unit 3 can record and store such event signals and synchronize multiple biological signals, including electrocardiogram signals.

[0068] Furthermore, it is obvious that an electrocardiogram measurement system according to one embodiment of the present invention having the above-described configuration may further include a storage unit 4 for storing biological signals and a communication unit 5 for communicating with the outside.

[0069] Furthermore, an electrocardiogram measurement system according to one embodiment of the present invention having the above-described configuration may further include an electrocardiogram measurement device 10 capable of changing displacement as described above, and a power supply unit 6 for supplying power to a sensing unit 1, a calculation control unit 2, an event signal recording and analysis unit 3, a storage unit 4, and a communication unit 5.

[0070] On the other hand, the electrocardiogram measuring device 10, which will be described later, can be explained in more detail as follows.

[0071] In an electrocardiogram measurement system according to one embodiment of the present invention, the electrocardiogram measurement device 10, which is electrically connected to the sensing unit 1, can be a device attached to the body for measuring an electrocardiogram.

[0072] Specifically, as shown in Figure 2, the electrocardiogram measuring device 10 can be broadly classified into a base section 100 and an electrode section 200.

[0073] The base portion 100 is provided such that the electrode portion 200, described later, can be attached to the body of the person being measured by forming a rotating region 101, and the position of at least one of the electrode portions 200 can be varied.

[0074] Here, the base portion 100 can have various shapes, lengths, and materials, as long as it forms a rotating region 101 and can perform the functions described above, and it goes without saying that this does not limit the scope of the present invention.

[0075] However, to illustrate with an example for a more detailed explanation, it would be convenient to describe the base portion 100 as a flat plate made of a flexible material, with the electrode portion 200, described later, provided at the bottom in accordance with the body of the person being measured.

[0076] The electrode portion 200 is provided below the base portion 100 described above and is in contact with the body to form at least one signal channel.

[0077] In this case, the rotational region 101 of the base portion 100 described above allows the electrode portion 200 to change the position of one of the multiple electrode portions 200 relative to any one of them, as shown in Figure 3.

[0078] For example, the base portion 100 may include a first pad 120 and a second pad 140.

[0079] The first pad 120 is formed to be elongated in one direction, and one side can be connected to one side of the rotation region 101.

[0080] At this time, one side of the second pad 140 is connected to the other side of the rotation region 101, allowing it to rotate relative to the first pad 120.

[0081] Therefore, it becomes possible to adjust the angle and ensure close contact depending on the physical shape of the person being measured.

[0082] In this case, the electrode section 200 that forms multiple signal channels may include, for example, a reference electrode 220, a first electrode 240, and a second electrode 260.

[0083] Specifically, the reference electrode 220 is provided on the lower surface of the rotating region 101 and can form one channel with the first electrode 240 (described later) and another channel with the second electrode 260.

[0084] In other words, the first electrode 240 is provided on the other lower surface of the first pad 120 to form a first signal channel.

[0085] In this case, the second electrode 260 is provided on the other lower surface of the second pad 140, thereby forming a second signal channel.

[0086] Although the specification limits the number of pads to 2 and the number of electrodes to 3, the number of pads in the base portion 100 and the number of electrodes in the electrode portion 200 of the present invention are not limited to the numbers shown in the drawings and may be provided in excess of these numbers.

[0087] For example, if the base portion 100 is provided with first, second, and third pads, the number of electrodes can be adjusted to match the number of pads, with a reference electrode 220 and the first, second, and third electrodes to form three signal channels, and all of these fall within the scope of the present invention.

[0088] The attachment position and voltage (ECG) measurement of the displacement-changeable electrocardiogram measuring device according to the above-described embodiment can vary, and it goes without saying that this does not limit the scope of the present invention.

[0089] However, for a more detailed explanation, regarding the attachment position, to illustrate with an example, in order to attach the displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, first, as shown in Figure 4, a virtual reference line A1 is set passing between the left and right clavicles of the person being measured, and then another virtual reference line A2 can be set from one end of the aforementioned virtual reference line A1 to the left nipple of the person being measured.

[0090] Next, the device is attached so that its center is positioned towards the center of another virtual reference line A2 that has been set, and an electrocardiogram is measured.

[0091] Here, since body morphology, including the position and shape of the heart, differs for each individual being measured, the aforementioned reference lines A1 and A2 may not be absolute.

[0092] Even if the aforementioned reference lines A1 and A2 are absolute, the position and shape of the heart differ from person to person, so the distance from reference lines A1 and A2 to the desired measurement point on the heart can also vary.

[0093] In this case, unlike the present invention, if the length and electrode positions of the electrocardiogram measuring device are always fixed, then if the electrocardiogram signal is severely distorted by noise at the measurement point and changes, there will inevitably be limitations to changing the measurement point even if the device is reattached.

[0094] However, as shown in Figure 5, the present invention has a rotatable structure, so that electrocardiogram signals can be measured at various positions Va, Vb, and Vc, and the signal with the least distortion can be selected from the measured signals.

[0095] In summary, as described above, the electrocardiogram measuring device with adjustable displacement according to one embodiment of the present invention can be changed to various angles depending on the body shape of the person being measured, thereby securing various measurement points for more accurate electrocardiogram measurement.

[0096] Furthermore, as shown in Figure 6, the rotation region 101 is provided such that a projection formed on the second pad 140 is retracted into a slot bent along the rotation radius, thereby allowing a preset rotation range to be set.

[0097] Furthermore, by arranging multiple grooves on the inner surface of the aforementioned bent slot into which a portion of the protrusion is retracted, it can be fixed at a predetermined angle.

[0098] Therefore, the measurer can pre-set the angle corresponding to the subject's body and accurately attach the device while maintaining that angle.

[0099] In this case, the electrocardiogram measuring device with displacement change capability according to one embodiment of the present invention may further include a reference section that guides the aforementioned virtual reference lines A1 and A2, although this is not shown in the drawings.

[0100] If the operator can be guided via a reference unit to the attachment position of a displacement-adjustable electrocardiogram measuring device according to one embodiment of the present invention, the method for doing so can vary.

[0101] However, to give an example for a more detailed explanation, the reference part may include a shoulder rest member that is long enough to rest against the left and right clavicles, a support member that protrudes from the center of the aforementioned shoulder rest member toward the user's abdomen, and a rotating member that protrudes toward the nipple at the intersection of the shoulder rest member and the support member, but is provided to be rotatable.

[0102] In this configuration, a fixing line may be formed on one side of the rotating member, and the fixing line may be provided in a form that protrudes from one side of the rotating member toward the skin of the person being measured, and the laser may be provided so that it is visible on the skin of the person being measured.

[0103] Furthermore, as shown in Figure 7, the pivot axis of the rotation region 101 can have an inclined pivot axis with respect to a virtual reference axis perpendicular to the lower surface of the base portion 100.

[0104] For example, when the second pad 140 is rotated from a first position to a second position with respect to the first pad 120 described above, the lower surface of the second pad 140 can be configured to have an upward inclination with respect to the lower surface of the first pad 120 at the second position, as shown in Figure 7, or, conversely, a downward inclination (not shown in the drawing), to allow for a more secure and tighter fit in response to the bending of the body of the person being measured.

[0105] For example, if the first pad 120 is attached to the subject's chest and the second pad 140 is attached near the subject's solar plexus, the lower surface of the second pad 140 can be designed to have a downward slope relative to the lower surface of the first pad 120, thereby allowing for a more secure fit in response to the height difference between the subject's chest and solar plexus.

[0106] Furthermore, although not shown in the drawings, the rotational region 101 can also be provided with a rotation axis parallel to one surface of the base portion 100 described above, and all such configurations will fall within the scope of the present invention.

[0107] On the other hand, the base portion 100 described above can be provided in various lengths and configurations depending on the body of the person being measured.

[0108] For example, as shown in Figure 8, the first pad 120 and the second pad 140 can be provided with the same length, and in some cases, as shown in Figure 9, the first pad 120 and the second pad 140 can be provided with different lengths.

[0109] For this reason, it is preferable that the first pad 120 and the second pad 140 are manufactured in advance as a set with different lengths from each other.

[0110] Furthermore, the base portion 100 described above may further include a variable region 102.

[0111] For example, as shown in Figure 10, the variable region 102 can be provided such that the length of at least one of the first pad 120 and the second pad 140 of the base portion 100 is variable.

[0112] To explain using the first pad 120 as an example, the first pad 120 can be made up of a plurality of unit pads having different lengths from each other, in which case the variable region 102 can be made up in the form of a flexible connector.

[0113] One of the unit pads of the first pad 120 is pulled in from one side of the variable region 102, and the other unit pad of the first pad 120 is pulled in from the other side, electrically connecting them to each other. By combining the unit pads, the length can be varied.

[0114] Furthermore, if a variable region 102 is formed in the rotating region 101, multiple electrocardiogram measuring devices 10, whose displacement can be changed according to one embodiment of the present invention, can be combined and used in various configurations.

[0115] An electrocardiogram measuring device 10 with displacement change capability according to one embodiment of the present invention having the above-described configuration may further include a fixed area 300.

[0116] At least one of the above-mentioned sensing unit 1, calculation control unit 2, event signal recording and analysis unit 3, storage unit 4, communication unit 5, and power supply unit 6 may be fixed in the fixed area 300.

[0117] Furthermore, the fixed area 300 may include the functions of a sensing unit 1, a calculation and control unit 2, an event signal recording and analysis unit 3, a storage unit 4, a communication unit 5, and a power supply unit 6, and may be configured to analyze and store signals from signal channels, and to detect pre-set danger signals and notify the outside. An integrated control module may also be provided.

[0118] Furthermore, the fixed region 300 may include a filter module for converting analog signals to digital signals, and a measurement signal sensing module for detecting electrocardiogram signals and smartwatches and other sensors with communication functions, expandable to multiple signal channels (e.g., 1 to 3 channels).

[0119] The aforementioned fixed area 300 can be divided into multiple spaces above the electrocardiogram measuring device 10, which is capable of changing displacement.

[0120] If the fixed area 300 is divided into multiple spaces above the electrocardiogram measuring device 10, which is capable of displacement changes, then the position in which at least one of the sensing unit 1, calculation control unit 2, event signal recording and analysis unit 3, storage unit 4, communication unit 5, power supply unit 6, integrated control module, filter module, and measurement signal sensing module is fixed can vary, and it goes without saying that this does not limit the scope of the present invention.

[0121] However, to illustrate with an example for a more detailed explanation, the fixed area 300 may have a communication unit 5 for external communication at one of its locations 360, as shown in Figure 12, and a power supply unit 6 for supplying power at the other location 320.

[0122] Furthermore, a sensing unit 1, a calculation control unit 2, an event signal recording and analysis unit 3, and a storage unit 4 may be provided at yet another position 340 within the fixed area 300.

[0123] Furthermore, the aforementioned filter module, measurement signal sensing module, etc., can be installed in any one of the fixed areas 300, which is divided into multiple spaces.

[0124] In summary, the fixed area 300 can be provided as a single space protruding from the base portion 100, as shown in Figure 11, where the electrocardiogram measurement system can be densely arranged, or, as shown in Figure 12, the fixed area 300 can be provided protruding from at least one position on the upper surface of the base portion 100, where the electrocardiogram measurement system can be dispersed.

[0125] In other words, in an electrocardiogram measuring device 10 to which the electrocardiogram measuring system according to one embodiment of the present invention is applied, the sensing unit 1, calculation control unit 2, event signal recording and analysis unit 3, storage unit 4, communication unit 5, and power supply unit 6 described above can be densely arranged on one side of the upper surface of the electrocardiogram measuring device 10, and can be provided protruding from at least one position on the upper surface of the electrocardiogram measuring device 10 in a distributed manner.

[0126] On the other hand, Figure 13 is a diagram illustrating the overall shape of an electrocardiogram measuring device 20 with adjustable displacement according to another embodiment of the present invention, in which an expansion section 400 has been added.

[0127] As shown in Figure 13, an electrocardiogram measuring device 20 according to another embodiment of the present invention may include a base portion 100, an electrode portion 200, and an extension portion 400.

[0128] Furthermore, it is obvious that a fixed area 300 can be provided, and the base portion 100, electrode portion 200, and fixed area 300 are the same as or similar to the base portion 100, electrode portion 200, and fixed area 300 described in one embodiment of the present invention, so their description will be omitted and only the other parts will be described.

[0129] The extension 400 is rotatably connected to the base 100 described above and electrically connected to the electrode 200 to form an additional signal channel.

[0130] Specifically, the extension 400 may include a main body 420 and an additional electrode 440, and the main body 420 may be rotatably connected to the rotation region 101 of the base 100.

[0131] For example, as shown in Figure 13, a connecting region 420a can be formed on one side of the main body 420, which is axially connected to the rotating region 101 described above. With the connecting region 420a axially connected to the rotating region 101, the extension portion 400 can rotate relative to the base portion 100.

[0132] In this case, the additional electrode 440 can be provided on the lower surface of the main body 420 described above so as to be in contact with the body of the person being measured.

[0133] Here, if the extension portion 400 can rotate relative to the base 100, there can be various ways in which the connecting region 420a is axially coupled to the rotating region 101, and it goes without saying that this does not limit the scope of the present invention.

[0134] However, to illustrate with an example for a more detailed explanation, it is preferable that the connecting region 420a is formed to protrude from the upper part of the rotating region 101 and is sandwiched between a coupling shaft electrically connected to the reference electrode 220, thereby electrically connecting the additional electrode 440 to the control unit 300.

[0135] Furthermore, the additional electrode 440 can be electrically connected to the electrode section 200, thereby forming an additional signal channel with the electrode section 200.

[0136] For example, if the first electrode 240 and the reference electrode 220 described above form one signal channel, and the second electrode 260 and the reference electrode 220 form another signal channel, the additional electrode 440 of the extension unit 400 can form yet another signal channel with the reference electrode 220 to improve inspection accuracy.

[0137] Furthermore, if no other electrodes are connected to the electrical path between the reference electrode 220 and the additional electrode 440, and they can be independently connected to form a signal channel, then even if they are rotatably connected to the upper surface of the base portion 100 of the main body 420, as in the displacement-changeable electrocardiogram measuring device 30 of yet another embodiment of the present invention shown in Figure 14, all of these fall within the scope of the rights of the present invention.

[0138] As described above, by connecting the rotatable extension 400 to the base 100, the number of points where it can make close contact with the body of the person being measured increases, allowing for stable contact.

[0139] In this case, the connecting region 420a of the main body 420 is connected with an inclined pivot axis with respect to the pivot axis of the rotating region 101, and the lower surface of the main body is provided with an upward or downward inclination with respect to the lower surface of the base, thereby further strengthening the adhesion force.

[0140] Furthermore, the connecting region 420a of the main body 420 may be provided to have a predetermined range of rotation via a ratchet structure, similar to the rotation region 101 described above, and to be fixed at at least one angle within the range of rotation.

[0141] Furthermore, like the base section 100, the main body 420 of the extension section 400 can also be made up of unit bodies 420 of different lengths, and by providing a flexible connector to electrically connect them, the length can be made variable.

[0142] The electrocardiogram measuring device of the present invention, having the configuration described above, can further include a protective film section F having at least one cut line and a accommodating area, as shown in Figure 15.

[0143] For example, the protective film portion F may include a protective area Fc that is in contact with the base portion 100 and the electrode portion 200.

[0144] In this case, at least one containment area is formed on one side of the protective area Fc, and a cut line may be formed between the containment area and the protective area.

[0145] The containment areas Fa and Fb can accommodate items such as razors for shaving and alcohol swabs for disinfection and cleaning before attachment, and the containment areas are designed to easily fold towards the protective area via the perforations F1 and F2, thereby minimizing the volume of the device before removal.

[0146] Here, the number of storage areas and cut lines is not limited to Figure 14, and it can be said that all designs with at least one storage area and corresponding cut lines, depending on their intended use, fall within the scope of the present invention.

[0147] The electrocardiogram measurement method performed by the electrocardiogram measurement system having the configuration described above is as follows:

[0148] As shown in Figures 16 and 17, an electrocardiogram measurement method according to one embodiment of the present invention is a measurement method for improving the clarity of an electrocardiogram signal, and can be broadly classified to include a primary correction step (S10), a division step (S20), a secondary correction step (S30), and a noise reduction and clarity improvement step (S40).

[0149] First, in the primary correction step (S10), the calculation control unit 2 can correct the movement and noise of the electrocardiogram signal waveform based on the behavioral state change value.

[0150] Here, the behavioral state change value can be a measurement value measured by the sensing unit 1 using the acceleration sensor and pressure sensor, as described above.

[0151] In other words, in the first correction step (S10), the calculation control unit 2 can correct the movement and noise of the electrocardiogram signal waveform by reflecting the behavioral state change values ​​measured from the sensing unit 1.

[0152] For example, in the first correction step (S10), the calculation control unit 2 can perform a first-order correction of the electrocardiogram signal waveform by correcting the movement of the baseline and noise in the electrocardiogram signal waveform based on the behavioral state change value described above.

[0153] In the first-order correction step (S10) described above, a first-order correction value corresponding to the change in action state value can be derived via the arithmetic control unit 2.

[0154] In other words, in the first correction step (S10), the calculation control unit 2 derives a first correction value corresponding to the behavioral state change value measured by the acceleration sensor, pressure sensor, etc., for the electrocardiogram signal which changes according to the behavioral state, and the sensing unit 1 applies this to the electrocardiogram signal measured via the electrocardiogram measuring device 10 which is capable of changing displacement as described above, thereby obtaining a first-order corrected electrocardiogram signal waveform.

[0155] Next, in the division step (S20), the arithmetic control unit 2 divides the corrected electrocardiogram signal and the standard electrocardiogram signal into preset intervals and derives characteristic values.

[0156] For example, in the division step (S20), the arithmetic control unit 2 derives an electrocardiogram signal waveform that has been corrected for motion and noise via first-order correction. Then, it divides the waveform into sections that are divided into PQRST waves, and uses a standard electrocardiogram signal that includes existing publicly available data to derive feature values ​​including section-specific deviation values.

[0157] In this case, the deviation values ​​included in the feature values ​​described above may include, for example, the deviation between the maximum and minimum values ​​of the first-order corrected electrocardiogram signal waveform and the standard electrocardiogram signal waveform, and pre-set interval deviations.

[0158] Next, in the secondary correction step (S30), the calculation control unit 2 can derive a secondary correction value for differential correction that corresponds to the behavioral state of the person being measured, via machine learning.

[0159] In other words, in the second-order correction step (S30), the calculation control unit 2 can derive differential compensation values ​​for each behavioral state of the person being measured. Specifically, the second-order correction values ​​can be derived by comparing the characteristic values ​​of the electrocardiogram signal waveform and the characteristic values ​​of the standard electrocardiogram signal waveform, defining the behavioral state of the person being measured through the behavioral state change values, and then performing machine learning on differential compensation according to the behavioral state of the person being measured.

[0160] In summary, the second-order correction step (S30) may include the process by which the arithmetic control unit 2 compares feature values, the process of defining the subject's behavioral state via behavioral state change values, and the process of deriving a second-order correction value for differential correction corresponding to the subject's behavioral state via machine learning.

[0161] In other words, even in the secondary correction step (S30), the calculation control unit 2 may reflect the behavioral state change value measured by the sensing unit 1.

[0162] In other words, the arithmetic control unit 2 can reflect the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor into the above-mentioned primary and secondary corrections, respectively.

[0163] Specifically, the arithmetic control unit 2 reflects the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor in the first-order correction described above, and can again reflect the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor in the second-order correction described above.

[0164] In the noise reduction and clarity improvement step (S40), the calculation control unit 2 applies the primary and secondary correction values ​​derived in the above-described step to the electrocardiogram signal, thereby performing a final correction on the electrocardiogram signal.

[0165] In other words, in the noise reduction and clarity improvement step (S40), as described above, the primary and secondary correction values ​​derived by reflecting the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor are applied to the electrocardiogram signal, and the electrocardiogram signal is finally corrected, thereby improving the clarity of the electrocardiogram waveform, which may decrease depending on the behavioral state of the person being measured.

[0166] As described above, preferred embodiments of the present invention have been explained. However, it is obvious to those with ordinary skill in the art that the present invention can be embodied in other specific forms without departing from its spirit or scope. Therefore, the embodiments described above should be considered illustrative rather than restrictive, and thus the present invention is not limited to the above description and can be modified within the scope of the appended claims and their equivalent scope. [Explanation of symbols]

[0167] <Electrocardiogram Measurement System> 1. Sensing Unit 2. Arithmetic Control Unit 3. Event Signal Recording and Analysis Unit 4 Storage section 5 Communications Department 6 Power supply section 10. Electrocardiogram measurement device with adjustable displacement <Electrocardiogram Measurement Method> S10 Primary Correction Step S20 Split Step S30 Secondary Correction Step S40 Noise Reduction and Sharpness Enhancement Step

Claims

1. A device attached to the body to measure an electrocardiogram, A base portion in which a rotational area is formed, A plurality of electrode portions are provided at the lower part of the base portion, which come into contact with the body and form at least one signal channel, Equipped with, The electrode portion is An electrocardiogram measuring device characterized in that the rotational region allows the position of one of the multiple electrode parts to be changed based on any one of them.

2. The electrocardiogram measuring device according to claim 1, further comprising an extension portion rotatably connected to the base portion and forming an additional signal channel with the electrode portion, wherein displacement can be changed.

3. The aforementioned extension portion is A main body rotatably connected to the rotational region of the base portion, An additional electrode is provided on the lower surface of the main body so as to be in contact with the body, electrically connected to the electrode portion, and forming an additional signal channel with the electrode portion. The electrocardiogram measuring device according to claim 2, characterized by comprising:

4. The aforementioned main body is The electrocardiogram measuring device according to claim 3, characterized in that it has an inclined rotation axis with respect to the rotation axis of the aforementioned rotation region.

5. The aforementioned main body is The electrocardiogram measuring device with displacement adjustment capabilities according to claim 3, characterized in that it has a preset range of rotation and is provided so as to be able to be fixed at at least one angle within the range of rotation.

6. The electrocardiogram measuring device with adjustable displacement according to claim 2, characterized in that the length of at least one of the main bodies of the base portion and the extension portion is provided to be variable.

7. The base portion is A first pad, which is formed to be elongated in one direction and has one side connected to one side of the rotation region, A second pad, one side of which is connected to the other side of the rotation region, is provided so that it can rotate relative to the first pad, An electrocardiogram measuring device capable of changing displacement according to claim 1, characterized by comprising the following:

8. The electrode portion is A reference electrode provided on the lower surface of the rotation region, A first electrode is provided on the other lower surface of the first pad to form a first signal channel, A second electrode is provided on the other lower surface of the second pad to form a second signal channel, The electrocardiogram measuring device according to claim 7, characterized by comprising the following:

9. The base portion is The electrocardiogram measuring device with displacement adjustment capabilities according to claim 7, characterized in that the first pad and the second pad are provided with different lengths from each other.

10. The aforementioned rotational region is, With respect to a virtual reference axis perpendicular to the lower surface of the base portion, The electrocardiogram measuring device according to claim 1, characterized by having an inclined pivot axis, which allows for displacement change.

11. A system for improving the clarity of electrocardiogram signals, A sensing unit electrically connected to an electrocardiogram measuring device capable of changing displacement as described in any one of claims 1 to 10, which senses the electrocardiogram signal, and electrically connected to an external sensor, which senses a value of change in the behavioral state of the person being measured that corresponds to the electrocardiogram signal, A calculation control unit that first corrects the waveform motion and noise of the electrocardiogram signal based on the behavioral state change value, derives a first correction value corresponding to the behavioral state change value, divides the first-order corrected electrocardiogram signal and standard electrocardiogram signal into preset feature intervals of the electrocardiogram signal to derive feature values, compares the feature values, defines the subject's behavioral state via the behavioral state change value, and derives a second correction value for differential correction corresponding to the subject's behavioral state via machine learning, Equipped with, The aforementioned behavioral state change values ​​are An electrocardiogram measurement system characterized by being reflected in the primary correction and again in the secondary correction.

12. The calculation control unit, The electrocardiogram measurement system according to claim 11, characterized in that the derived primary correction value and the secondary correction value are applied to the electrocardiogram signal to perform a final correction on the electrocardiogram signal.

13. The aforementioned feature values ​​are, The electrocardiogram measurement system according to claim 11, characterized in that it includes the deviation between the maximum and minimum values ​​of the primary corrected electrocardiogram signal waveform and the standard electrocardiogram signal waveform, and a preset interval-specific deviation.

14. The aforementioned external sensor is The electrocardiogram measurement system according to claim 11, characterized in that it is an acceleration sensor and a pressure sensor.

15. The aforementioned behavioral state change values ​​are The electrocardiogram measurement system according to claim 14, characterized in that it includes acceleration sensor values ​​when the subject is not moving, acceleration sensor values ​​when the subject is moving, and pressure sensor values ​​due to external pressure.

16. The electrocardiogram measurement system according to claim 11, further comprising an event signal recording and analysis unit that works in conjunction with the calculation control unit to detect a danger signal by comparing the electrocardiogram signal with a preset event signal.

17. A measurement method for improving the clarity of an electrocardiogram signal performed by the electrocardiogram measurement system described in claim 11, A primary correction step is performed by the calculation control unit to correct the movement and noise of the electrocardiogram signal waveform based on the behavioral state change value transmitted from the sensing unit. The calculation control unit divides the corrected electrocardiogram signal and the standard electrocardiogram signal into pre-set feature intervals and performs a division step to derive feature values, The calculation control unit performs a secondary correction step to derive a secondary correction value for differential correction corresponding to the behavioral state of the person being measured via machine learning, The calculation control unit applies the derived primary correction value and secondary correction value to the electrocardiogram signal, and performs a noise reduction and clarity improvement step to perform a final correction on the electrocardiogram signal. Includes, In the aforementioned secondary correction step, The electrocardiogram measurement method is characterized in that the calculation control unit reflects the behavioral state change values ​​confirmed via the acceleration sensor and pressure sensor back into the secondary correction.

18. The aforementioned first correction step is, A process of first-order correction of the waveform motion and noise of the electrocardiogram signal based on the behavioral state change value, The process of deriving a primary correction value corresponding to the aforementioned behavioral state change value, The electrocardiogram measurement method according to claim 17, characterized by including the following:

19. The aforementioned secondary correction step is: The process of comparing the aforementioned feature values, A process of defining the behavioral state of the subject via the aforementioned behavioral state change value, The process of deriving a second-order correction value for differential correction according to the behavioral state of the subject via machine learning, The electrocardiogram measurement method according to claim 17, characterized by including the following:

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