CN104665823A - Wearable ECG Detection Device - Google Patents

Abstract

The invention relates to a wearable electrocardiogram detection device. The device comprises a first electrode and a second electrode, wherein at least the first electrode is arranged on the body of a user through a wearing structure, and the second electrode is contacted with the skin of an upper limb, a neck or a shoulder so as to realize an electrocardiosignal extracting loop and extract the electrocardiosignals.

Description

Wearable ECG Detection Device

technical field

The present invention relates to a wearable electrocardiogram detection device, in particular to a wearable electrocardiogram detection device, which has a structure for actively applying force to electrodes to provide better quality of electrocardiogram signals.

Background technique

It is known that the electrocardiographic detection device is used as the main way to check various heart diseases, such as whether there is arrhythmia, cardiac hypertrophy caused by high blood pressure or heart valve disease, myocardial infarction or ischemic heart disease, etc. .

When people feel heart discomfort and go to the hospital for examination, traditional ECG detection devices are often used. For example, 12-lead electrocardiogram detection can detect various heart problems in detail, but if the source of heart discomfort If it is an occasional symptom, for example, arrhythmia, it is very likely that the heart condition at the time of the onset cannot be measured during the detection period. Therefore, in response to such occasional symptoms, a Holter electrocardiogram machine is often used. The way of long-term detection, for example, wearing for 24 hours to several days, it is hoped to record the electrocardiogram when symptoms occur in this way, and similar to the Holt electrocardiograph, the ECG event recorder (ECGevent recorder) It also adopts the method of long-term wearing, but the difference is that it allows the user to decide the recording time, for example, when the heart feels uncomfortable, and record the electrocardiogram by pressing the button, for example, the device does not usually record , but when the user presses the button, the ECG is recorded for 30 seconds before and after the pressing time. In addition to being used to record occasional symptoms, Holt's electrocardiograph is also commonly used to monitor the heart condition after cardiac surgery or taking therapeutic drugs to confirm the effect of treatment.

Whether it is a Hult type ECG machine or an ECG event recorder, its setup requires multiple electrodes to be attached to the body to obtain an ECG and is connected to a device through a connecting cable. Therefore, the user must always stick them during the measurement period. Wearing the electrodes and wearing the device on the body is quite inconvenient, and it is easy to cause skin discomfort due to sticking the electrodes for a long time. However, no electrocardiogram was recorded for analysis of occasional symptoms because there was no disease. Moreover, such a test must be set up with the assistance of professional medical personnel. For example, the sticking of electrodes must be set up in the hospital, and usually after a long period of measurement is completed, the doctor downloads and records the electrocardiogram. Analysis requires at least several days to know what is wrong with the heart. Therefore, it is not only complicated, but also lacks real-time performance.

Therefore, in view of the above-mentioned shortcomings, the improvement further proposed is a hand-held ECG detection device, which solves the problem of having to wear the device for a long time on the body by using dry electrodes that do not need to be pasted on the body, and simplifies the detection process. of complexity. As disclosed in U.S. patent applications with application numbers US7149571 and US7197351, the hand-held ECG detection device is provided with dry electrodes on the surface of the device, and can perform ECG by touching the hand and/or body surface whenever necessary. Detection, therefore, is no longer limited by the time of wearing on the body and the sticking of electrodes, so it can be used more flexibly to monitor the condition of the heart. Moreover, such ECG detection devices are usually equipped with analysis programs and display screens, It allows users to know the test results at the moment of measurement without waiting for a consultation in the hospital. Therefore, it is quite suitable for home use, and it also provides users who are highly concerned about their own heart health. Easy way.

Afterwards, with the popularization of portable electronic devices, such as smart phones, an ECG detection device combined with a mobile phone has appeared in recent years, as disclosed in US8615290, which is similar to a hand-held ECG detection device and also uses For dry electrodes, the only difference is that the device is controlled through the operation interface of the mobile phone. This way allows users who need to monitor the heart to reduce the number of devices they carry with them.

However, although the above-mentioned ECG detection devices are handheld or combined with a mobile phone, although they can be carried with you, they must be held and operated by hand, so in addition to the need to display the results , the size cannot be too small, and it is still a certain burden to carry; moreover, since the electrodes are not always installed on the body, more steps are required when testing, for example, take out the device first and then turn it on before starting Therefore, it is also possible to miss the opportunity of detection.

Moreover, the way of measuring with both hands is easy to cause unstable phenomena such as hand shaking during measurement, thus causing the measured ECG to have baseline drift, waveform deformation, etc., which affect the analysis. Moreover, when the user wishes When the hand is kept stable and the muscles are tense or force is deliberately used to ensure contact with the electrodes, it is also easy to generate myoelectric signals that affect signal analysis due to force.

Therefore, there is a need for a wearable ECG detection device that can solve the above-mentioned shortcomings, make it more convenient for users to use, and at the same time minimize the influence of various uncertain factors during operation.

Moreover, when the ECG detection device can be worn on the body, other physiological information can be further obtained through the obtained ECG signal. For example, the time series of heartbeat intervals can be obtained according to the ECG to perform HRV (Heart Rate Variability, heart rate Variation rate) analysis, to know the activity of the autonomic nerves, and to obtain relevant RSA (Respiratory Sinus Arrhythmia, sinus arrhythmia) information by analyzing the time series, and then to know the breathing changes used, and through these This information guides the user through breathing exercises that help improve autonomic balance.

Since one of the important causes of arrhythmia is the disorder of autonomic nervous system, when the user wishes to record the electrocardiogram when arrhythmia occurs in real time through a wearable ECG detection device, if the same device can provide The function of symptoms will be a more complete solution for users.

Contents of the invention

The purpose of the present invention is to provide a wearable ECG detection device. The electrodes used to extract ECG signals are implemented in a wearable form, which can realize the contact between the electrodes and the skin without the user applying force.

Another object of the present invention is to provide a wearable ECG detection device, which is arranged on the finger through a finger-wearing structure, and realizes the contact between the electrode and the skin of the finger while wearing.

Another object of the present invention is to provide a wearable ECG detection device, which is installed on the ear through the ear-wearing structure, and realizes the contact between the electrode and the ear or the skin near the ear while wearing it.

Another object of the present invention is to provide a wearable ECG detection device, which simultaneously sets the two electrodes required for extracting ECG signals on the finger and the ear through the finger-worn structure and the ear-worn structure, so as to While easy to wear, it also achieves the effect of minimizing the interference of electromyographic signals, and further provides a way to continuously obtain electrocardiographic signals for a long time.

Another object of the present invention is to provide a wearable ECG detection device, which is installed on the wrist through the wrist-worn structure, and realizes the contact between the electrodes and the skin near the wrist while wearing.

Another object of the present invention is to provide a wearable ECG detection device, which has both ECG signal and EEG signal detection functions, and can realize the electrode and electrocardiogram detection while the device is placed on the head through the head-mounted structure. The contact of the skin batch on the head.

Another object of the present invention is to provide a wearable ECG detection device, which has two operation modes to provide ECG with different projection angles of the heart, and allows the user to select the operation mode according to the usage environment and operation habits.

Another object of the present invention is to provide a wearable ECG detection device, which can provide HRV analysis results of heart rate series, so as to understand the activity of the user's autonomic nerves.

Another object of the present invention is to provide a wearable ECG detection device, which can obtain RSA information according to the heart rate sequence, as a basis for guiding the user to carry out breathing training, and then achieve the effect of affecting the autonomic nerve.

Another object of the present invention is to provide a wearable ECG detection device, which can obtain information related to the user's breathing pattern according to the heart rate sequence, so as to analyze the synchronization between the EEG signal, breathing and heart rate.

Description of drawings

1A-1B show a schematic diagram of a finger-worn ECG detection device according to the present invention;

2A-2C show schematic diagrams of the operation of the finger-worn ECG detection device according to the present invention;

Figure 3 shows a schematic diagram of electrode contact positions for obtaining a standard twelve-lead electrocardiogram;

4A-4G show an exemplary embodiment of the finger-worn ECG detection device according to the present invention;

FIG. 5A shows a schematic diagram of an ear-worn ECG detection device according to the present invention;

FIG. 5B shows a schematic diagram of the operation of the ear-worn ECG detection device according to the present invention;

5C-5D show an exemplary embodiment of the ear-worn ECG detection device according to the present invention;

6A-6C show an exemplary example of electrode configuration positions of the ear-worn ECG detection device according to the present invention;

Fig. 7 shows a schematic diagram of the ear-worn ECG detection device according to the present invention, the skin near the ear where the electrodes can be in contact;

8A-8B show an exemplary embodiment of a wearable ECG detection device according to the present invention, which adopts both a finger-worn structure and an ear-worn structure;

9A-9B show a schematic diagram of a wrist-worn ECG detection device according to the present invention;

9C-9D show schematic diagrams of the operation of the wrist-worn ECG detection device according to the present invention;

9E-9F show exemplary examples of the wearable ECG detection device according to the present invention, which simultaneously adopts a wrist-worn structure and a finger-worn structure;

10A-10D show an exemplary example of connecting electrodes externally through the connection port of the wrist-worn ECG detection device according to the present invention;

FIG. 11A shows an exemplary embodiment of a finger-worn ECG detection device according to the present invention, which is externally connected to a finger-worn electrode through a connection port;

FIG. 11B shows an exemplary example of an ear-worn ECG detection device according to the present invention, which is externally connected to a finger-worn electrode through a connection port;

FIG. 11C shows an exemplary embodiment of the finger-worn ECG detection device according to the present invention, through which the ear-worn electrodes are externally connected through the connection port;

12A-12B are exemplary examples of obtaining ECG signals through two ECG detection loops according to the wearable ECG detection device of the present invention; and

FIG. 13 shows a schematic diagram of the operation of the head-mounted ECG detection device according to the present invention.

Wherein, the reference signs are explained as follows:

10 first electrode

12 second electrode

14 connection port

16 The third electrode

20 shell

90 Wrist-worn structure

92 finger wearing structure

94, 95 surface

Detailed ways

The wearable ECG detection device according to the present invention includes a control module, a wearable structure, a first electrode and a second electrode, and an information providing unit, wherein the circuit system includes a processor to control the device. Overall operation, for example, through the first electrode and the second electrode to perform the extraction of ECG signals, etc., the wearable structure is used to place the device on the user when performing ECG signal extraction, so as to provide convenience of use, As for the information providing unit, it is used to provide information to the user, such as operation-related information, physiological information and analysis results.

Wherein, the circuit system can be implemented to be accommodated in the wearable structure, or, further, the device according to the present invention can further include a casing, at this time, the circuit system can be accommodated in the casing and/or Or in the wearing structure, therefore, depending on the actual implementation situation, there is no limit; in addition, the material of the shell can be implemented as the same or different from the wearing structure, for example, if it is implemented as the same material, it can be In the form of one-piece molding, in addition, if it is implemented in different materials, suitable materials can be selected according to different wearing positions, and there is no limitation.

In addition, since the ECG detection device according to the present invention is implemented in a wearable form, there are more options for the information providing unit to provide information, including, but not limited to, visual, auditory and tactile methods, for example In other words, the information providing unit can be implemented as a display element and/or a light emitting element to provide information by means of text display, graphic change, and/or light signal change; or, the information providing unit can also be implemented as a sound module , to provide information through the change of sound frequency or volume or voice; or, the information providing unit can also be implemented as a vibration module, and provide information by means of changes such as the intensity and length of vibration.

Furthermore, the information providing unit can also be further implemented to output information to an external device through a wired transmission module or a wireless transmission module, so as to provide the information to the user through the external device, wherein the external The device can be, but not limited to, a personal computer, a smart phone, a tablet computer or a smart watch, as long as it can provide the information to the user, so there is no limitation.

In the wearable ECG detection device according to the present invention, in particular, the first electrode is implemented as a part that will contact the user's skin when the entire ECG detection device is set on the user's body through the wearable structure. On the surface, that is, the contact between the first electrode and the skin is realized through the action of placing the wearing structure on the body. Therefore, the first electrode can achieve contact with the skin without the user having to apply force himself. Therefore, the myoelectric interference caused by the muscle tension caused by the operation action will be significantly reduced, which is very helpful to obtain good signal quality.

As for the second electrode, there are several options for implementation. For example, it can be implemented to be located on another surface of the device other than this surface, so that other parts of the user's skin can be touched, such as fingers, chest, etc. It should be noted that the surface used to set the first electrode and the other surface used to set the second electrode can be any surface of the wearing structure, or any surface of the shell. There is no limitation on a surface, and it is only necessary to pay attention that the first electrode and the second electrode do not touch the same part of the skin of the user. Or, alternatively, it can also be implemented to be arranged on the user's body through another wearing structure, so that the active force of the wearing structure can also be used to achieve contact with the skin, so there is no limitation.

Accordingly, when in use, the user can place the wearable ECG detection device according to the present invention on the body through the wearing structure, for example, on the finger, on the ear or on the wrist, etc., and in this case, the The contact between the first electrode and the skin has been achieved, and then, when there is a need to measure the ECG, it is only necessary to touch the second electrode to other parts of the skin to extract the circuit of the ECG signal. ECG is convenient and easy to obtain whenever needed.

In addition, when the second electrode is also implemented to be arranged on the body of the user through the other wearing structure, the user only needs to arrange both wearing structures on the body, and the electrodes for extracting ECG signals are set. Complete, therefore, the user can press the start button to extract the signal for a period of time when it is necessary to record the ECG, for example, 30 seconds or 1 minute, or it can also be implemented as the extraction of the ECG signal when the device is worn on the body The recording and/or analysis starts immediately afterward, so as to save the action of pressing to start the measurement in order to record the sudden heart condition. Therefore, there is no limit, and a suitable method can be selected according to actual needs.

Here, similarly, another housing can be combined with the other wearing structure, and the second electrode can also be implemented to be located on any surface of the another wearing structure or the other housing, only It only needs to be able to realize the contact between the second electrode and the skin when the other wearing structure is disposed on the user's body, so there is no limitation.

Because the electrocardiogram detection device according to the present invention adopts the form of wearing, therefore, in conjunction with the operation behavior worn on the body, the start of the device and/or the electrocardiogram detection can be performed in addition to the general power-on and/or start-up detection methods. There are various options, for example, a switch can be provided near the second electrode, which can be triggered by the applied force of the second electrode in contact with the skin, so that the device enters a state where ECG signal extraction can be performed, and then activated device and/or electrocardiogram detection; or, as an alternative, the second electrode can be connected to a physical state detection unit to detect a physical change produced when the electrode contacts the skin, and through the physical change to know that the electrode Whether the contact with the skin is stable enough, so it can be known whether the device can extract ECG signals. In addition, the first electrode can also be implemented as being connected to a physical state detection unit, without limitation.

Here, the physical change includes, but is not limited to, pressure change and impedance change. For example, the physical state detection unit may include a pressure sensing module to know the pressure change and determine whether the pressure on the electrode is sufficient. Or the physical state detection unit can also be implemented as a switch, which can also know the pressure on the electrode, or, the physical state detection unit can also include an impedance sensing circuit or a capacitance sensing circuit, so as to know the pressure of the electrode Impedance and capacitance changes are used to judge whether ECG detection can be performed, so it is not limited.

Therefore, when judging, if the switch is not switched completely, and/or the physical change does not meet a preset range, it means that the contact state between the second electrode and the skin is not enough for ECG signal extraction. Therefore, the device is in the In the state where ECG signal extraction cannot be activated, if the switch has been completely switched and/or the physical change meets a preset range, it means that the contact between the second electrode and the skin is sufficient for ECG signal extraction, so , the device switches to a state where the ECG signal extraction can be started.

Here, in particular, whether the electrode can be used can also be controlled by judging whether the switch is fully switched or whether the physical change meets the preset range, for example, whether it is turned on or not, that is, the electrode is in an unusable state first, Until the switch is completely switched or the physical change meets the preset range, the electrode is converted into a usable state, for example, turned on, so that the clarity of the obtained ECG signal can be further ensured. It is more conducive to the accuracy of the analysis results.

Furthermore, after it is determined that ECG signal extraction is possible, how to start the device and/or detect also has various options. For example, in a preferred embodiment, the device according to the present invention can be designed as , the device will automatically start to detect the ECG signal after a certain period of time, for example, after 3 seconds; or in another preferred embodiment, the device will switch to be able to The state of performing ECG signal extraction, after that, if the extraction state still persists, the ECG signal detection is started. Therefore, there are various possibilities, but the actual needs vary and there is no limit.

In addition, in conjunction with the above-mentioned starting and judging methods, the device according to the present invention can also be implemented to be in the state of signal extraction all the time, but only when the characteristics of the ECG signal are detected, the recording is performed, or the sampling frequency or signal magnification is adjusted. , to record all possible ECG signal changes more completely.

The following is an example to illustrate the preferred implementation of the wearable ECG detection device according to the present invention.

First of all, according to the idea of the first aspect of the present invention, the wearable structure is implemented as a finger-worn structure, therefore, the wearable ECG detection device according to the present invention is carried by the finger-worn structure, and is arranged on the user's On a finger, here, it can be implemented as shown in Figure 1A, the form of the circuit system is accommodated by the finger-wearing structure, or it can also be implemented as shown in Figure 1B, and a housing is combined with the finger-wearing structure 20, and the circuit system can be accommodated in the casing and/or the finger-worn structure, so it depends on the actual implementation situation and is not limited.

Wherein, the first electrode 10 is located on a surface of the device that can be in contact with the skin of the finger due to the wearing action when the finger-wearing structure is placed on the finger, and the second electrode 12 is located on the device. On another surface except this surface, for example, it can be the surface opposite to this surface, or on the surface adjacent to it, just pay attention to the position that will not touch the skin of this finger.

Here, the main reason for choosing the finger as the position for installing the ECG detection device is that the finger-wearing form is just like wearing a ring for ordinary users. Combined with the finger, the contact between the first electrode and the skin can be completed. Later, when it is necessary to record the electrocardiogram at any time, it is only necessary to contact the second electrode with the skin of other parts of the limb other than the finger. Immediately extract the ECG signal, the operation process and action are simple, natural and convenient. Moreover, by applying force to the finger through the finger-wearing structure, the contact between the first electrode and the skin can be realized without the user applying force, which can minimize the influence of muscle tension on the ECG signal.

There are many possibilities for actual operation. For example, the second electrode on the surface can be touched by another hand, as shown in FIG. 2A, or it can also be touched by moving the hand wearing the device. Skin, Figure 2B shows the operation situation of putting the ring on the cheek, and Figure 2C shows the ECG signal extraction method of putting the ring on the torso, so there is no limitation.

Here, in particular, due to the finger-worn form, the user can realize the ECG signal extraction circuit by moving the hand wearing the device to touch other parts of the body, bringing more operational possibilities , It also allows the user to choose a suitable contact position according to the different use environment and needs, which is more convenient.

Therefore, through such a concept, users will be able to easily obtain ECGs with different projection angles by touching different positions, which will help to judge the condition of the heart more accurately. Figure 3 shows the standard 12-lead The contact position of the electrocardiogram, through the finger-worn electrocardiogram detection device according to the present invention, the user can easily wear the device on the finger of the left hand, and obtain different angles by touching the measurement points V1-V6 ECG projection of the heart.

When performing electrocardiogram measurement, every two electrodes can get an electrocardiogram at an angle, that is, the location of the electrodes determines the projection angle of the electrical activity of the heart reflected by the electrocardiogram, and since the heart is three-dimensional, and the pathological heart The part may be located in any heart position. For example, the examination of myocardial infarction needs to check whether there is ST drift due to myocardial necrosis in the ECG waveform, but it may not be detectable at certain angles because of the position where it occurs. Therefore, obtaining ECGs from different angles is of great help in judging heart diseases.

Here, the installation position of the finger wearing structure according to the present invention on the finger is preferably the phalanx where the proximal phalanx or the middle phalanx is located, so as to avoid falling off due to hand movements because the position is close to the end of the finger. Specifically, the finger-worn structure can be in the form of a general ring as shown in Figure 4A, or as shown in Figure 4B, it can be implemented as a flexible belt around the finger with a shell on it, or as shown in Figure 4B As shown in 4C, it is implemented in the form of only a flexible belt body, or in the form of an open C-shaped ring, and there is no limitation; here, no matter what form is adopted, it can further have a structure with an adjustable surrounding diameter, so as to To further ensure the stability of the contact between the electrodes and the skin, for example, the ring can be implemented as a mechanism with a variable ring circumference to suit the fingers of different wearers, and the belt body can be implemented as having an adjustable fixed position, for example, by The Velcro is set to allow the user to choose the tightness when wrapping around, and the implementation method can also be changed according to the actual situation, without limitation; in addition, the form of a clip can also be used to clamp the knuckles or fingertips, and It is also a good choice to achieve the effect of fixing through the elasticity of the clip itself.

Moreover, it can also be implemented as a finger cot arranged on the fingertip, as shown in FIG. 4D, that is, a groove structure for fingers to enter, for example, in the form of a ring or a hole, and the first electrode It is arranged on the inner surface of the groove structure, and the inner surface is implemented as a surface conforming to the finger, so as to realize the contact between the first electrode and the skin of the finger when the finger is inserted. Here, the groove The structure can be made of elastic material, such as rubber or silicone, to realize the contact between the electrode and the skin, or it can also be formed with a plastic shell, and an elastic material is arranged inside to cover the finger, or it can be used The structural design of the inward force can be provided to ensure good contact between the internal electrode and the fingertip skin, so there is no limitation. Such a form advantageously makes it easier to access different positions to obtain electrocardiograms with different projection angles. Therefore, the finger-worn ECG detection device according to the present invention can be implemented in various forms according to actual needs, without limitation.

In addition, in a preferred embodiment, the casing 20 can also be connected to the finger-worn structure through a connecting wire, and be arranged on the wrist of the limb where the finger is placed through a wrist-worn structure, as shown in FIG. 4E In this way, the hardware configuration that was originally located near the fingers and combined with the finger-worn structure, such as circuits, batteries, etc., can be moved to the wrist to reduce the burden on the fingers when wearing the device, and the wrist-worn structure and /Or the surface of the housing that is not in contact with the wrist can also be used as a location for setting the second electrode to provide another contact option for the user, or, as shown in Figure 4F, it can also be implemented as the finger-worn Both the structure and the wrist-worn structure have shells, so there is no limitation.

Moreover, in another preferred embodiment, the casing 20 can also be implemented to be combined with the finger-wearing structure through a connector, as shown in FIG. 4G , in this case, the first electrode 10 contacts the right hand The fingers and the second electrode 12 are in contact with the skin near the wrist of the left hand, and since the finger-wearing structure is combined with the housing arranged on the wrist to rest on the wrist, when the user places both hands on a fixed surface On, for example, on the desktop, when measuring, a very stable measurement posture can be formed, so that the generation of electromyographic signals is minimized. In addition, the circuit of ECG detection can be shortened through the form of connector connection. Therefore, the electromagnetic interference noise in the environment induced by the connection wire can be minimized, so it is also a very favorable choice.

Moreover, according to another conception of the present invention, the wearable structure is implemented as an ear-wearing structure, therefore, the wearable ECG detection device according to the present invention is carried by the ear-wearing structure, and is arranged on the user On an ear of the ear, and the circuit system is housed in the ear-wearing structure, and/or in a housing that is additionally included.

Wherein, as shown in FIG. 5A, the first electrode 10 is located on a surface of the device that can be in contact with the ear or the skin near the ear due to the wearing action when the ear-wearing structure is placed on the ear. , as for the second electrode 12, it is located on another surface of the device except the surface, for example, it may be the surface opposite to the surface, or the surface adjacent to it, as long as it is not in contact with The location of the skin of the ear or the area near the ear is sufficient. Here, the first electrode 10 can also be implemented as having two electrodes, as shown in FIG. 6A, and one of the electrodes is used as a ground or reference electrode to suppress common mode noise, for example, noise from a power supply. Therefore, implementing There is no limit on .

Here, one advantage of using the ear as the position of the contact electrode is that the ear and its vicinity are areas where the myoelectric signal is extremely small, and the relative positional relationship between it and the head is quite stable, so even if the user is measuring During body movement, for example, slightly turning the body or turning the neck, the contact between the electrodes and the skin remains stable without too much interference affecting the measurement results.

In addition, in general daily life, compared with other parts of the body, the ear is less covered by clothing and can be easily touched directly when necessary. Moreover, the ear and the skin around it also have less hair. The contact between the electrode and the skin can be realized easily and without obstacles, so it is a very convenient choice for users.

Therefore, in actual operation, as shown in FIG. 5B , the user only needs to touch the second electrode of the device worn on the ear with his hands to easily realize the ECG signal extraction circuit, which is quite convenient.

In addition, in a preferred embodiment, the casing 20 can also be connected to the ear-wearing structure through a connecting wire, and be arranged on a wrist through a wrist-wearing structure, as shown in FIG. 5C , so that , the hardware configuration that is originally located near the ear and combined with the ear-mounted structure, such as circuits, batteries, etc., can be moved to the wrist to reduce the burden on the ear when wearing the device, and the wrist-mounted structure and/or the shell It can also be used as the position where the second electrode is set, for example, a position that can be touched by the user's other hand, or a position that can touch the wrist where the housing is located, etc., to provide the user with another contact option, or it can also be implemented Both the ear-worn structure and the wrist-worn structure have shells, as shown in FIG. 5D , so there is no limitation.

Here, there are various options for implementing the ear-wearing structure according to the present invention. For example, common fixing methods in daily life, such as ear-hooks, earplugs, and ear clips as shown in FIGS. 6A-6C , allow users to There is no need to re-learn, and it can be configured naturally. Therefore, the user only needs to simply put on the earphones to complete the electrode setting; moreover, when the electrodes are set on the ear through the above-mentioned fixing method, The contact between the electrode and the skin can be realized without the user applying force, the interference of the myoelectric signal can be minimized, and a good quality signal can be obtained.

In addition, in particular, in a preferred embodiment, the ear-wearing structure is implemented to be attached to the ear using magnetic force, for example, two components that are magnetically attracted to each other across the ear can be used, and the electrodes are arranged On one of the parts, and both parts can be implemented so that both are magnetic, or one part has magnetic force, and the other part can be attracted by magnetic force, there is no limit; here, the magnetic force can be achieved by placing a magnetic substance inside the part , or by directly making components from magnetic substances. In addition, similarly, substances attracted by magnetic force can also be placed inside components or used to form components.

As for where on the ear to obtain the ECG signal, there is no limit, it can be any position of the ear itself, for example, inside the ear canal, earlobe, inner surface and back of the auricle, for example, the concha cavity, the area near the opening of the ear canal, etc. , the helix and the back of the auricle, and as shown in Figure 7, the area near the ear, for example, the skin near the junction of the ear and the skull, etc., these positions are all positions that can be used to contact electrodes and obtain ECG signals.

In addition, since the installation position is the ear, the ear-worn ECG detection device according to the present invention is also suitable for combining with earphones, for example, wired or wireless earphones. In this way, besides making ECG detection more integrated into daily life In addition, the sound function of the earphone can also be used to achieve greater effects. For example, the analysis results of the user can be provided through sound and/or voice, for example, to remind the abnormality of the ECG signal, or to remind the user to record the ECG at regular intervals. Wait, it's more convenient.

Here, it should be noted that both ears are optional wearing positions. However, it has been found through experiments that the contact position of the second electrode has a considerable influence on the signal quality. Wherein, when the second electrode is implemented When touching the left upper limb, the quality of the obtained ECG signal is much better than that obtained by touching the right upper limb. Therefore, when measuring the ECG signal by touching the ear, it is better to use the left upper limb to touch the ear. The second electrode is used to avoid poor signal quality due to contact with the right upper limb, which will lead to misjudgment of the analysis.

And, in particular, according to the idea of still another aspect of the present invention, the first electrode and the second electrode can be further implemented to achieve contact with the skin through the finger-wearing structure and the ear-wearing structure, as shown in Figure 8A As shown in -8B, in this way, the user only needs to wear the wearable structure on the ears and fingers respectively, and the electrode configuration required for measuring the ECG signal has been completed, which is quite convenient. Moreover, the gap between the two electrodes and the skin All contacts are realized by active force exerted by the wearable structure, which minimizes the interference of myoelectric signals caused by muscle tension.

Here, as shown in FIG. 8A and FIG. 8B , only a single wearable structure can be combined with a shell, or both wearable structures can be provided with a shell, there is no limit, and the circuit system is also not limited. The ground can be accommodated in any wearable structure and shell, and it can be changed according to actual needs.

In addition, in addition to the ECG electrodes on the finger-worn structure, the ECG electrodes on the ears can also cooperate with ECG electrodes on other locations to obtain ECG signals, such as the neck, shoulders, upper arms, forearms, etc. The location, for example, can be set near the neck and shoulders through a neck-wearing structure such as a necklace or a collar, or can be set on an arm through an arm-wearing structure or a wrist-wearing structure, which is also quite convenient. Therefore, as long as the electrode installation positions capable of projecting an electrocardiogram fall within the scope of the specification of the present invention.

According to another aspect of the present invention, the wearable structure is implemented as a wrist-worn structure. Therefore, the wearable ECG detection device according to the present invention is carried by the wrist-worn structure, and is thereby arranged on a wrist of the user. , and the circuit system is housed in the wrist-worn structure, and/or in a housing further included.

Wherein, as shown in FIG. 9A, the first electrode 10 is located on a surface of the device that can be in contact with the skin near the wrist due to the wearing action when the wrist-worn structure is placed on the wrist. As for the second Electrode 12 then is positioned on another surface except this surface on this device, for example, can be on the surface opposite with this surface, or on the surface adjacent to it, just need to pay attention to and can not touch the limb skin of this wrist place location. Here, the first electrode 10 can also be implemented as having two electrodes, as shown in FIG. 9B, and one of the electrodes is used as a ground or reference electrode to suppress common mode noise, for example, noise from a power supply. Therefore, implementing There is no limit on .

Here, the main reason for choosing the wrist as the place to install the ECG detection device is because the wrist-worn form is just like wearing a watch for ordinary users. The structure is combined on the wrist to complete the contact between the first electrode and the skin. After that, when it is necessary to record the ECG at any time, it is only necessary to contact the second electrode with the skin of other parts of the limb other than the finger. The ECG signal can be extracted immediately, and the operation process and action are simple, natural and convenient. Moreover, by applying force to the wrist through the wrist-worn structure, the contact between the first electrode and the skin can be realized without the user applying force, which can minimize the influence of muscle tension on the ECG signal.

Therefore, in actual operation, as shown in FIG. 9C , as long as the user touches the second electrode with his hand, the ECG signal extraction circuit can be easily implemented, which is quite convenient. In addition to the form in which the shell is carried on the wearable structure, the circuit can also be accommodated in the wrist-worn structure as shown in FIG. 9D , so there is no limitation.

And, in particular, according to the idea of still another aspect of the present invention, further, as shown in FIGS. structure 92 to achieve contact with the skin, so that the user only needs to wear the wearable structure on the fingers and wrists respectively, that is, the electrode configuration required for measuring the ECG signal has been completed, which is quite convenient. Moreover, the two The contact between the electrode and the skin is realized by the active force applied by the wearable structure, and the user can realize the contact with the electrode without applying force. In addition, if the user can place both hands on a fixed plane when taking measurements Above all, the EMG signal interference caused by muscle tension can be minimized, which is quite advantageous.

In addition, in the embodiment shown in FIG. 9E and FIG. 9F, a third electrode can be additionally provided on the surface of the wrist-worn structure that is not in contact with the wrist skin, for example, as shown in FIG. 9F On the surface 94 or the surface 95, the user can still collect the ECG signal through the first electrode 10 and the third electrode without using the finger-worn structure, providing another choice in use.

Moreover, further, the wrist-worn ECG detection device according to the present invention may also include a connection port 14, as shown in FIGS. 10A-10C , to electrically connect the third electrode 16 through a connection line. The third electrode can be further implemented to replace the function of the second electrode. For example, it can be implemented so that the second electrode will be automatically disabled when the third electrode is connected to the connection port, or it can also be implemented by a switch And let the user decide which electrode to activate, the embodiment is not limited. In addition, the third electrode 16 can also be implemented to be in contact with the skin through a wearing structure, for example, an ear-wearing structure (as shown in FIG. 10B ). shown), a finger-worn structure (as shown in FIG. 10C ) or a wrist-worn structure, etc.

Alternatively, the third electrode 16 can also be implemented as being connected by a connector, as shown in FIG. The electrode 16 will be located in the finger-worn structure. In this case, since the finger-worn structure is combined with the device on the wrist through a connector, a fairly stable measurement posture can be achieved, which is more conducive to obtaining high-quality ECG signal.

When the third electrode is extended through the connecting wire as shown in Figures 10B-10C, compared with the second electrode on the surface of the device, the device of the present invention can provide more contact position options to obtain different heart angle projections For example, when the projection angle of the heart when using the second electrode is obtained through two hands (the wrist wearing the wrist-worn structure and the hand contacting the second electrode), the use of the third electrode can provide The wearing structure contacts the ear (for example, the left hand wearing the wrist wearing structure and the left ear wearing the ear wearing structure) to obtain the selection of ECG with different heart projection angles.

As mentioned above, since the heart part where the lesion occurs may be located in any heart position, for example, the examination of myocardial infarction needs to check whether there is ST drift due to myocardial necrosis in the ECG waveform, but when the lesion occurs at a certain angle Electrocardiograms from different angles are necessary when the lowering cannot be detected.

Therefore, by extending the third electrode, the device of the present invention allows the user to perform ECG signal measurement by contacting the second electrode on the surface, and also simply connect another electrode when necessary. way to get more information about the heart.

In addition, the extended third electrode further provides other advantages in use.

In the present invention, the setting of the second electrode allows the user to obtain the ECG signal simply and quickly by touching the surface electrode when necessary, and the extended third electrode provides the user with the ability to obtain the ECG signal. Another option for stabilizing the signal. Since the third electrode is in contact with a part of the skin of the user's body through the wearing structure when using the third electrode, factors such as muscle tension and hand shaking that are most likely to affect the quality of the ECG signal can be eliminated, and then Obtain more stable and high-quality ECG signals.

In addition, compared to the hand touching the second electrode, the third electrode extending through the connecting wire as shown in Figures 10B-10C also allows the user to select a measurement location with a stronger ECG signal, for example, closer to the heart position, so that the influence of the interference signal becomes smaller, for example, the EMG signal of the same size can be excluded in the case of a strong ECG signal, but in the case of a weaker ECG signal, it is very likely that it cannot be compared with the ECG signal. Misjudgment occurs due to different signals. Therefore, the user can obtain the correctness of the analysis result by setting the third electrode at a position where a strong ECG signal can be obtained.

Therefore, the wrist-worn ECG detection device according to the present invention has two operating modes, the first operating mode and the second operating mode. In the first operating mode, the first electrode and the second electrode together form a second operating mode. An electrocardiographic signal extraction circuit to obtain the first type of electrocardiogram, and in the second operation mode, the first electrode and the third electrode together form a second electrocardiographic signal extraction circuit to obtain the second type of electrocardiogram, and With such an optional operation mode design, stable and high-quality ECG signals can be obtained even in different operating environments and usage habits.

In addition to the wrist-worn ECG detection device, similarly, the above-mentioned finger-worn ECG detection device and ear-worn ECG detection device according to the present invention can also be implemented as having a connection port to connect a third electrode , replacing the second electrode.

For example, as shown in Figure 11A, the finger-worn ECG detection device can be connected to a finger-worn third electrode through a connecting line, and as shown in Figure 11B, the ear-worn ECG detection device can also be connected through a connecting line A finger-worn third electrode. In both cases, the operation mode that originally needs to use the hand to touch the electrode is replaced by a finger-worn structure that can provide active force. In this way, the instability that may occur due to hand contact factor can be eliminated, which helps to obtain a more stable signal; in addition, as shown in Figure 11C, the finger-worn ECG detection device can also be connected to an ear-worn third electrode, in addition to providing a measurement method without applying force , and also obtain an ECG with a heart projection angle different from that of the two-hand contact electrode. Therefore, there is no limit.

Still further, the wearable ECG detection device according to the present invention can also be implemented to simultaneously obtain the first type of electrocardiogram through the first electrode and the second electrode, and obtain the second type of electrocardiogram through the first electrode and the third electrode, As shown in Figure 12A and Figure 12B, that is, the first electrode forms an ECG detection circuit with the second electrode and the third electrode at the same time when measuring, so that the user can follow different Choose different operating modes according to your needs, so as to obtain the heart information closest to your own needs.

Moreover, according to the idea of another aspect of the present invention, the wearable structure is implemented as a head-mounted structure, therefore, the wearable ECG detection device according to the present invention is carried by the head-mounted structure, and is thereby arranged on the user's head. part, and the circuit system is housed in the head-mounted structure, and/or housed in an additional housing.

As shown in Figure 13, the first electrode is located on a surface of the device that can be in contact with the skin of the head due to the wearing action when the head-wearing structure is placed on the head, and the second electrode 12 is It is located on another surface of the device except the surface, so as to contact the skin of the upper limbs (eg, fingers, arms), neck, shoulders, etc., so as to realize the ECG signal acquisition circuit. Here, it should be noted that the location of the second electrode can have various options, for example, it can be located on the surface opposite to the surface of the head-mounted structure, or on the surface adjacent to it, so as to For the upper limbs to touch, or to contact the skin of the upper limbs through a finger-worn structure, wrist-worn structure, or arm-worn structure; or, alternatively, an ear-worn structure that can be fixed on the ear can also be connected, and the The second electrode is arranged on the exposed surface of the ear-wearing structure for the user to make contact with the upper limbs; or, alternatively, the second electrode can also be extended to the neck or shoulder through the connecting wire, such as , Through neck-wearing structures such as collars and necklaces, ECG signals can also be obtained. Therefore, all possibilities are possible without limitation.

Here, the head-mounted structure can also be implemented in various forms, for example, a belt, a headgear, or a rigid head frame with an adjustment mechanism, or in the form of glasses. Contacts, therefore, are not limited.

The head and ears have similar characteristics, and it is not easy to generate myoelectric signals that will interfere with ECG signals. Therefore, it is also a suitable location for setting ECG electrodes. Moreover, through the head-mounted structure, EEG electrodes can be further installed , to obtain EEG signals, for example, it is only necessary to set at least two EEG electrodes on the inner side of the head-mounted structure, or when an ear-mounted structure is used, a separate brain electrode is provided on the inner side of the head-mounted structure and the ear-mounted structure Electric electrodes, to contact the sampling points of the EEG signal on the head, for example, the common sampling points include Fp1, Fp2, O1, O2, A1, A2, etc., or any position defined according to the 10-20 system. It is quite advantageous to provide users with more detection functions without increasing the burden.

Moreover, the electrocardiographic electrode arranged on the head-mounted structure for contacting the skin of the head, that is, the first electrode, can be further shared as an electroencephalogram electrode, and form an electrocardiographic signal acquisition circuit with the second electrode, and An EEG capture circuit is formed with another EEG electrode.

Or, alternatively, the sharing method can also be implemented as that two electrodes are used to obtain the ECG signal and the EEG signal at the same time, that is, the ECG signal and the EEG signal are obtained through the same physiological signal acquisition circuit , here, the reason why this can be done is that the ECG signal is much larger than the EEG signal, wherein the ECG signal falls in the range of millivolts (mV), while the EEG signal falls in the range of microvolts (μV) , so even if they enter the same input terminal of the physiological signal acquisition circuit, the two can still be distinguished from each other.

In practice, for example, one electrode that contacts the head can be used to cooperate with another electrode that can simultaneously contact the head and hands to achieve the acquisition of ECG and EEG signals, wherein the simultaneous contact with the head The electrodes of the head and hands, taking the most common metal electrode sheet as an example, can be implemented as two electrode sheets that contact the hand and the head are electrically connected to each other, or can be implemented as two parts of one electrode sheet that contact the hand respectively And the head, for example, when placed on the headgear structure, contacts the skin of the head and the skin of the outer hand on the inside, so the embodiment is not limited.

Accordingly, the EEG electrodes are also suitable for being arranged on the ear-worn structures shown in FIGS. 5-6 and 8 . First of all, there are locations where cerebral cortex activity can be detected in the ear and the area near the ear, such as the temporal lobe. Furthermore, in the field of EEG detection, the ear is not easy to detect due to its structure and location. Affected by brain activity, it has always been regarded as one of the best places to set the reference electrode. Therefore, combining the reference electrode with the ear-wearing structure and contacting the ear is originally common in EEG detection, so , the ear-worn ECG detection device according to the present invention is also quite suitable for combining and setting EEG electrodes to obtain EEG signals, and is also suitable for using the shared electrode mode, that is, the first electrodes are simultaneously implemented. for EEG electrodes.

Further, in the embodiment shown in Fig. 5-Fig. 6 and Fig. 8, in addition to disposing the two EEG electrodes on the ear-wearing structure, an additional head-mounting structure can also be connected so that an EEG electrode is disposed on the ear-wearing structure. Among them, in this way, the EEG signals can be obtained through the EEG electrodes respectively arranged on the head-wearing structure and the ear-wearing structure, and can be arranged on the ear-wearing structure through the ECG electrodes arranged in the ear-wearing structure. The ECG electrodes on the exposed surface (Fig. 5-Fig. 6) or the ECG electrodes on the finger-worn structure (Fig. 8) are used to obtain ECG signals, thereby providing various possible implementation options.

In actual use, the ECG detection device according to the present invention is designed in a wearable form, so it provides the possibility of continuously obtaining ECG signals conveniently during wearing, and thus provides more convenient functions for users.

First of all, because the wearable form allows the user to wear it on the body without burden, it is quite suitable for wearing and using in daily life. For example, the user can wear the device on the ear or finger in daily life. Or on the wrist, and when needed at any time, for example, when the heart feels uncomfortable, the ECG signal detection can be started in real time, or the ECG detection can be performed regularly every day, so as to effectively grasp the changes of one's own heart.

In particular, the occurrence of arrhythmia is often without warning. Therefore, through such an ECG detection device worn on the body, the ECG when an arrhythmia occurs or when the user feels an irregular heartbeat can be recorded in real time. , as a basis for doctors to judge whether they have arrhythmia.

For example, whether it is a finger-worn, ear-worn or wrist-worn ECG detection device, the user can record the ECG in real time by touching the second electrode with the hand. Obtain an electrocardiogram, as shown in Figure 2A, Figure 5B, and Figure 9C; alternatively, if the second electrode is set on the body through the wearing structure or the third electrode is used, the two electrodes for obtaining the ECG signal All contacts have been completed, therefore, the user only needs to start the ECG signal measurement, for example, by pressing the start button, the ECG can be recorded in real time. In any case, it is quite simple and convenient to use.

Here, the device according to the present invention can be set to automatically record the ECG for a fixed time after the ECG measurement is activated, for example, 30 seconds or 1 minute, so that the user can easily record the heart feeling in real time. When appropriate, for example, an EKG when an arrhythmia occurs.

In addition, the user can also choose to record the continuous ECG for a long time, especially when the two electrodes are set on the body through the wearable structure, and by analyzing the ECG obtained continuously for a long time, the user can obtain more information .

For example, the continuous heart rate sequence information can be obtained according to the continuous electrocardiogram for HRV (Heart Rate Variability, heart rate variability) analysis. HRV analysis is the most important method to observe the activity of autonomic nervous system. Through the analysis results generated by HRV analysis, we can understand the situation of autonomic nervous activity in detail, for example, the activity of sympathetic nerve, the activity of parasympathetic nerve, the balance of autonomic nerve, and The overall activity of the autonomic nervous system, etc., and more and more studies have shown that many diseases, such as headaches, gastrointestinal discomfort, high blood pressure, insomnia, depression, etc., may be caused by the disorder of the autonomic nervous system. Therefore, through the long-term continuous HRV analysis results, we can know the changes in the activity of the autonomic nervous system in the daily work and rest, and then explore whether which behaviors or emotions in daily life lead to the disorder of the autonomic nervous system, and whether the above-mentioned diseases are caused by the autonomic nervous system. Disorder etc.

Moreover, since the device according to the present invention is in a wearable form, the information providing unit can also provide real-time HRV analysis results to the user, so that the user can know in real time which behaviors or emotions are present. It may cause an imbalance of the autonomic nervous system, and further, through the design of the present invention, the user can also perform physical and mental adjustments in real time, for example, relax the body and mind, and know whether the autonomic nervous system has returned to a more coordinated state.

In addition, when used during sleep, through HRV analysis of continuous electrocardiogram during sleep, physiological changes during sleep can also be understood, for example, sleep cycle can be judged, sleep quality can be understood, etc., which is quite convenient.

Here, it should be noted that after the ECG signal is obtained, the device according to the present invention can be implemented to store the ECG signal first, and then output the ECG signal for further processing after the measurement is completed, for example, output it to a computer device for further processing. storage and analysis, etc.; and/or, since the device of the present invention has an information providing unit, relevant information or analysis results can also be provided to the user in real time, such as average heart rate, HRV analysis results, etc., and/or, The information providing unit can also be implemented to transmit the recorded ECG signal and/or data to an external device in real time, such as a mobile phone, a tablet computer, etc., and the external device performs real-time display and/or analysis, so ,no limit.

Furthermore, the wearable ECG detection device according to the present invention also provides a way for the user to perform breathing training on the go. Through the form worn on the body, the device according to the present invention can obtain continuous ECG signals, and obtain the time series of heartbeat intervals, that is, the heart rate series, and by analyzing the heart rate series, the relevant sinus arrhythmia ( Respiratory Sinus Arrhythmia (RSA) information, the so-called RSA refers to the phenomenon that the heartbeat changes due to the influence of breathing on the autonomic nervous system when the heart rate is controlled by the autonomic nervous system. The heartbeat speeds up, and the heartbeat slows down during respiration. Therefore, the change pattern of respiration and the activity of autonomic nerves can be known by observing RSA.

In addition, since breathing is a physiological activity controlled by the autonomic nerves and can be affected by consciousness, the autonomic nerves can be affected by consciously adjusting the breathing to achieve the effect of relaxing the body and mind. Among them, according to research, the breathing rate (respiration rate), tidal volume, and the ratio of exhalation period/inspiration period are all factors that affect the activity of sympathetic and parasympathetic nerves. Among them, a slower rate can reduce the activity of the sympathetic nerve, while a faster rate can increase the activity of the sympathetic nerve. For example Generally speaking, the breathing rate of general adults falls in the range of 10-18 times per minute. When the breathing rate can be reduced to the range of 5-8 times per minute, it can help to increase the activity of parasympathetic nerves. In addition, when The activity of the parasympathetic nerves is likewise increased when the exhalation period/inspiration period ratio is increased, ie when there is a longer expiratory period compared to the inspiratory period.

Therefore, in general, breathing training is carried out by providing the user with a breathing pattern that helps to relax the body and mind. The breathing rate of 8 times, and/or the increased exhalation period under the premise of natural breathing, to guide the user to reduce the breathing rate and/or increase the exhalation period, thereby increasing the activity of parasympathetic nerves, inhibiting sympathetic nerves, and allowing users to The human body can be relieved from tension and restore relaxation.

Moreover, since autonomic nerve disorder is also one of the important causes of arrhythmia, one of the purposes of users who use this device is to wish to record the electrocardiogram when arrhythmia occurs in real time, the device of the present invention provides The breathing guidance training function allows the user to change the balance of the autonomic nerves by controlling breathing, which will help improve the symptoms of arrhythmia. The two complement each other and are more meaningful.

When using the wearable ECG detection device according to the present invention to carry out breathing training, the user only needs to wear the device on the body and maintain the contact between the two electrodes and the skin, and during breathing training, the information The providing unit is used to provide the breathing guide signal to the user, so that the user can follow and adjust the breathing. In addition, the information providing unit can also provide information about the user's physiological state changes during breathing training, for example, sympathetic and negative Changes in the activity of sympathetic nerves, changes in heart rate, and changes in actual breathing patterns are used as references for users to perform breathing training.

Here, since it takes a long time to perform breathing training, it is preferable that the user can choose a form in which both electrodes are arranged on the body through the wearing structure, for example, using the second electrode that can be arranged through the wearing structure , or use the third electrode to cooperate with the first electrode to extract ECG signals, and perform breathing training in an easier way.

In addition, the breathing guidance signal can also be a dynamic guidance signal adjusted according to the breathing change pattern obtained from the heart rate sequence, that is, the user's breathing condition obtained in real time can be used to know what the breathing rate is , and/or whether it falls within the speed range that is conducive to physical and mental relaxation, and dynamically adjusts the guidance signal accordingly, so that the user can achieve the effect of breathing guidance training in the most relaxed and comfortable way.

Or, since increasing the amplitude of RSA can help trigger the relaxation response (RelaxationResponse), release the accumulated stress, and achieve the effect of increasing the ratio of parasympathetic nerve/sympathetic nerve activity. Therefore, by observing the change pattern of the user's heart rate and When the heart rate begins to accelerate, the guide informs the user that it is time to inhale, and when the heart rate begins to slow down, the guide informs the user that it is time to exhale, so as to increase the RSA amplitude and relax the body and mind.

Furthermore, the results of frequency domain analysis of the heart rate sequence can also be used to know whether the breathing and heart rate are harmonious and synchronized, and a better harmony and synchronization between breathing and heart rate represents a more orderly and coordinated heart rhythm , that is, the human body is in a relatively relaxed and stable state. Therefore, when the user obtains relevant information during training, he can change his physiological state through consciousness.

In addition, when the EEG signals are obtained in conjunction with the EEG electrodes, the synchronization of heart rate, respiration, and EEG signals can be observed to understand the user's physiological state. Because, according to research, exhalation and inhalation will cause blood volume fluctuations in blood vessels, and this fluctuation will also reach the brain along with the blood flow, thereby causing brain waves to be in the low frequency range, for example, below 0.5 Hz. Therefore, the breathing pattern can also be known by observing the brain waves. Furthermore, since the sinoatrial node and vascular system of the heart are also regulated by the autonomic nervous system, and the autonomic nervous system will also pass through the pressure receptor system (baroreceptor system) feeds changes in heart rate and blood pressure back to the brain, thereby affecting the function and operation of the brain, for example, affecting the cerebral cortex, and can be measured by EEG. Therefore, there is a mutual influence relationship between the three, and the three A good synchronization between the participants can represent that the human body is in a relatively relaxed state, which is quite useful information.

For example, when the information providing unit provides the breathing guide signal, it can also provide real-time information about heart rate, and/or information about the synchronization between breathing and heart rate obtained through spectrum calculation. Therefore, the user The effect of breathing adjustment on the autonomic nerve can be known in real time, for example, whether the activity of the parasympathetic nerve has been improved, or whether the activity of the sympathetic nerve has been reduced, etc. The physiological feedback program is more efficient.

In addition, the HRV analysis results can be further used to let users know the effectiveness of breathing training. For example, HRV analysis can be performed before and after breathing training to know the impact of breathing training on the autonomic nerves, and even, It can also be implemented as real-time HRV analysis, and through the information providing unit, the user can be informed of the activity of the autonomic nerve in real time, and in a way similar to physiological feedback, the user can understand their own physiological conditions in real time, which further helps to realize Relaxing effect.

Since HRV analysis is an analysis of heart rate series for a period of time, real-time HRV analysis can be implemented through the concept of moving window (Moving Window), that is, first determine a calculation time period, for example, 1 minute Or 2 minutes, after that, by continuously moving this time period backwards, for example, calculating once every 5 seconds, the HRV analysis results can be obtained continuously, for example, an HRV analysis result is obtained every 5 seconds, thus providing The purpose of real-time HRV analysis results, in addition, the concept of weighting calculation (weighting) can also be used to moderately increase the calculation proportion of physiological signals closer to the analysis time, so that the analysis results are closer to the real-time physiological conditions.

The information providing unit may have various options when providing the breathing guidance signal, for example, guidance may be performed in a visual, auditory, and/or tactile manner, without limitation. The selection of visual guidance includes, but is not limited to, graphic changes, text display, luminous brightness changes, and/or light signal changes, etc., which are all suitable methods. The pattern guides the user to inhale and exhale; or the number of LED lights changes to represent the inhalation and exhalation; or the text can be used to directly inform the user to inhale and exhale.

In addition, when using auditory guidance, the selection includes, but is not limited to, sound changes and speech. For example, the strength of the sound can represent the change of inhalation and exhalation; or different types of sounds can represent the changes of inhalation and Exhale, and let the user follow, for example, the sound of birds, waves, different music tracks, etc.; or you can also tell the user to inhale or exhale through voice, for example, when you first start breathing guidance training , can guide the user's breathing pattern through the voice instructions of "inhale" and "exhale" that match the breathing change pattern, and when it is detected that the user's breathing has met the desired change pattern, it will notify the user to "continue" Maintain the current inhalation and exhalation rate", and stop the voice guidance of "inhale" and "exhale". Therefore, there are various options, which can be changed according to the needs of actual implementation, without limitation.

However, when the device according to the present invention is implemented in combination with earphones, the above-mentioned auditory guidance will appear more natural, and since the sound and/or voice directly enters the ear through the earphones, it will not disturb people around at all, so It also further provides concealment, so that the breathing training can be carried out without being limited by time and place. For example, breathing training can also be performed while taking a vehicle, which is more convenient.

Furthermore, when the way of tactile guidance is adopted, it is preferable to provide vibration changes in the form of a combination of parts that are in contact with the user's body, for example, a wearing structure. As for the way of vibration changes, there is also no Limiting, for example, can be implemented to use vibration signals to remind the user of the correct timing of exhalation and/or inhalation initiation, or to only generate when the user's breathing pattern deviates too much from the preset target guidance signal Vibration guidance, etc.

Here, it is advantageous that when the auditory and/or tactile guidance is adopted, the user can close his eyes during the guided breathing training, which is more conducive to body relaxation and breathing adjustment.

In addition, in a preferred embodiment, the breathing guidance signal can also be implemented to be output to the external device through the information providing unit and the wired/wireless transmission module, such as a smart phone, a tablet computer, a smart watch, etc., Then the external device provides the breathing guidance signal to the user for breathing training.

In particular, in another preferred embodiment, the breathing guide signal is generated by the external device and provided to the user. At this time, the external device will further receive relevant information from the information providing unit. The information of autonomic nerve activity or breathing pattern can be provided to the user while providing the breathing guidance signal, or can be used as a basis for adjusting the breathing guidance signal. In addition, the external device can further receive the required Information about the user's breathing pattern is stored for later reference when reviewing the recording.

Moreover, according to the wearable ECG detection device of the present invention, in addition to the extraction of ECG signals and the above-mentioned EEG signal detection, it may also include other physiological sensors to obtain other physiological signals.

For example, there may be at least one optical sensor. Here, the optical sensor refers to a sensor that has a light-emitting element and a light-receiving element, and utilizes the principle of PPG (photoplethysmography) to obtain an optical signal, for example, using a penetrating method or a reflective method The person taking the measurement, who also sets up by the action of wearing the wearable structure, for example, can be located on the surface where the first electrode is located, so that he can be connected with the first electrode by the action of wearing the wearable structure. It is set on the body of the user, for example, on the finger, ear or near the ear, wrist or near the head, etc.

The optical sensor is mainly used to detect the pulse generated by the heartbeat, and through the obtained continuous pulse changes, the user's heart rate sequence can be obtained and used for related analysis. Since only a single optical sensor can obtain physiological signals, The setting is simple, and the user only needs to wear the wearing structure, so it is quite conducive to continuous signal acquisition for long-term physiological state monitoring.

When the device of the present invention has the functions of obtaining electrocardiographic signals by using electrodes and obtaining heart rate sequences by using optical sensors, it will be particularly beneficial to early warning and judgment of arrhythmia. This is because, although complete arrhythmia information, for example, different types of arrhythmias such as premature atrial contractions (PAC) occurring in the atria, and premature ventricular contractions (PAC) occurring in the ventricle ( Premature ventricular contractions (PVC), traditionally need to be judged by observing the electrocardiogram, but by observing the changes in heart rate, it is still possible to interpret the characteristics of arrhythmia, such as premature contraction (Premature Beats), ventricular fibrillation (AF, Atrial Fibrillation), tachycardia (Tachycardia), bradycardia (Bradycardia), pause of heartbeat (Pause) and other symptoms, therefore, through such a configuration of the present invention, it is possible to continuously acquire heart rate sequence to pre-screen whether a possible arrhythmia event occurs, and then notify the user to perform an ECG test when a possible arrhythmia event occurs to further confirm whether the possible arrhythmia event is correct or not, and to obtain further Details.

Therefore, in actual implementation, the user puts the device on the body through the wearable structure, for example, on the finger, ear or wrist. At this time, the optical sensor on the wearable structure performs continuous pulse wave detection and obtains the heart rate sequence , after that, the obtained heart rate sequence will be continuously compared with the time characteristics of possible arrhythmia events, and when a match occurs, a possible arrhythmia event will be determined. At this time, the information providing unit is used to notify the user that the A possible event of arrhythmia occurs, and the user is reminded to measure the ECG signal. Therefore, after receiving the notification, the user can simply extract the ECG signal by touching the second electrode, and obtain the possible cardiac rhythm immediately. Irregular ECG signal. Here, the ECG signal can be directly analyzed to know whether there is an arrhythmia symptom, and the result can be notified to the user, or can be transmitted to an external device in real time, such as a mobile phone or a tablet computer, for storage and/or Analysis, etc., or it can be stored first and analyzed later, for example, downloaded to a computer for analysis, etc., without limitation.

In addition, the heart rate sequence obtained by the optical sensor can also be used for continuous HRV analysis and breathing training as mentioned above, because its execution procedure is similar to the above, the only difference lies in the physiological basis for HRV analysis and breathing training. The signal is the heart rate sequence obtained by the optical sensor, so it will not be described in detail; moreover, it can also cooperate with the acquisition of the EEG signal, and continuously analyze the synchronization between the breathing, heart rate and EEG signal, so as not to Provide users with more information under increased burden.

Furthermore, when the implementation is to obtain the ECG signal and the pulse at the same time, the time required for the pulse wave to travel from the heart to the sensing position of the light sensor can also be obtained, which is the so-called Pulse Transit Time (PTT) ), and since PTT is related to arterial stiffness that affects blood pressure, the reference blood pressure value can be calculated through the specific relationship between PTT and blood pressure value.

In addition, similarly, it is also possible to arrange the light sensors at different positions. For example, when the implementation is that both electrodes are set through the wearable structure, the light sensors can be additionally set in the respective wearable structures. In this way, By calculating the time difference between the two pulse waves, the relevant pulse wave velocity (Pulse Wave Velocity, PWV) information can be obtained, and then the reference blood pressure value can be obtained through the known calculation theory.

Alternatively, the blood pressure value can also be obtained directly by using the cuff and an inflatable pump, and in this case, the continuous change of the pulse can also be obtained through the cuff, and then the analysis of possible arrhythmia events as described above can be performed, Also quite advantageous.

Furthermore, the wearable ECG detection device according to the present invention is also suitable for use during exercise. For example, the user can wear the device according to the present invention during exercise without feeling burdened, and rest during exercise Time can be directly measured to know the impact of exercise on the heart. For example, the ECG can be obtained by touching the electrodes with the hand, or the ECG signal can be obtained directly when the two wearable structures have been worn directly, or the sensor is equipped with a light sensor. Under the circumstances, the heart rate sequence is obtained by the optical sensor, so it can be known according to the information provided by the information providing unit, for example, whether it has achieved sufficient exercise intensity (whether the heartbeat reaches the expected target), or whether the heart is abnormal, etc. , especially exercise is a good time for arrhythmia. Therefore, the device of the present invention can also record the electrocardiogram when arrhythmia occurs in real time.

In addition, in addition to periods of intense exercise, other times when abnormal heartbeats may occur, for example, when climbing mountains and flying, it is also suitable to use the wearable ECG detection device according to the present invention, so as to grasp one's own heart condition in real time .

In summary, according to the wearable ECG detection device of the present invention, the device is arranged on the user's body through the wearing structure, so that the contact between the ECG electrodes and the skin is completed through the wearing action, so as to reduce the force exerted by the user. , and the effect of reducing the interference of electromyographic signals, especially when the two electrodes required for obtaining electrocardiographic signals are all set on the user's body through the wearable structure, the interference of muscle tension is minimized; and , whether it is finger-worn, ear-worn, wrist-worn, and/or head-worn, it is a common way of wearing in daily life. On the body, to record physiological signals at any time when necessary, for example, record electrocardiogram when arrhythmia occurs, and/or obtain own physiological information, such as real-time HRV analysis results, and/or use it for physiological regulation, For example, for breathing training, etc. Therefore, it is not only easy to configure and easy to use, but also widely used.

Moreover, the wearable ECG detection device according to the present invention also provides two operation modes. In the first operation mode, both electrodes are located on the surface of the device, and in the second operation mode, one of the electrodes passes through The connecting wires extend out, therefore, in addition to allowing the user to select an operation mode according to different usage environments and operating habits, in the second operation mode, the extended electrodes also provide the ability to be placed at different body positions to obtain It is possible to project the ECG at different angles, and since the extended electrodes are set on the user through the wearable structure, it further provides an operation mode that does not require the user to actively apply force, which is quite advantageous.

Claims (9)

1. A wearable ECG detection device, comprising: a control module including a processor; A finger-wearing structure for being arranged on a finger of an upper limb of a user; a wrist-worn structure for being arranged on a wrist of the other upper limb of the user; A first electrode and a second electrode, wherein the first electrode is located on a surface of the device in contact with the finger skin when the finger-worn structure is placed on the finger, and the second electrode is located on the wrist-worn structure When placed on the wrist, on the other surface of the device that is in contact with the skin near the wrist; and an information providing unit for providing user information, in, When performing ECG signal detection, the finger-worn structure and the wrist-worn structure are electrically connected through a pair of connectors, and form a whole, and the skin of the finger contacts the first electrode, and the skin near the wrist contacts The second electrode is used to form an electrocardiographic signal extraction circuit, and to extract the electrocardiographic signal. 2. The device according to claim 1, wherein the finger wearing structure is implemented as a finger cuff structure, which has a groove for accommodating a fingertip of the finger, and the first electrode is located in the groove . 3. The device as claimed in claim 1, wherein the finger wearing structure is implemented as a ring structure. 4. The device of claim 1, further comprising a third electrode located on a surface of the wrist-worn structure not in contact with the skin of the wrist. 5. The device of claim 1, wherein the processor performs an analysis of the ECG signal to obtain a time series of heartbeat intervals of the user, and performs the time series and an arrhythmia time series feature comparison to determine whether there is an arrhythmia event. 6. The device according to claim 1, further comprising a transmission module, and the information providing unit is further constructed to transmit information to an external device through the transmission module, so as to provide the information to the external device through the external device user. 7. The device as claimed in claim 1, further comprising at least one light sensor disposed on one or more of the finger-worn structure and the wrist-worn structure to detect continuous pulse changes of the user. 8. The device as claimed in claim 7, wherein the processor obtains the pulse wave transit time through the measured continuous pulse changes and the ECG signal, and calculates the reference blood pressure value of the user. 9. The device according to claim 7, wherein it is implemented as having two light sensors, which are respectively arranged on the finger together with the first electrode through the finger-wearing structure, and connected with the first electrode through the ear-wearing structure The second electrode is set on the ear together to detect the user's continuous pulse change, and the processor obtains the relevant pulse wave propagation velocity information through the pulse measured at the two places, and calculates the user's reference blood pressure.