Electrocardio-electrode positioning band
By designing a combination of stretchable elastic bands and automatic adjustment electrodes, the problem that existing ECG electrode positioning bands cannot be adjusted according to the bust circumference is solved, and the accuracy and efficiency of ECG signal acquisition for patients with different bust circumferences is improved.
Patent Information
- Application Number
- CN202510168474.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-04-11
AI Technical Summary
Due to the solidification of the electrode points of the existing electrocardiogram electrode, the existing electrocardiogram electrode positioning belt cannot be adjusted according to different bust circumferences, resulting in errors in the acquisition position and the electrocardiogram signals of patients with different bust circumferences cannot be accurately collected.
An electrocardiogram positioning belt is designed, using a combination of the main belt and the elastic belt. The elastic belt can be stretched to change the length, fit the main belt according to the user's bust size, and automatically adjust the opening and closing of the electrodes through the upper computer to achieve an adaptive electrode combination.
It realizes adaptive switching of different groups of automatic adjustment electrodes according to the user's bust, accurately collects the electrocardiogram signals of patients with different busts, and improves the acquisition efficiency and accuracy.
Smart Images
Figure CN119791669A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of wearable devices, and in particular to an electrocardiogram electrode positioning belt. Background Art
[0002] With the development of wearable medical devices in recent years, wearable devices have been applied to a certain extent. Among them, ECG wearable products have matured. The characteristics of this type of equipment are the use of integrated electrode positioning technology to place the six electrodes on the chest as an integral positioning belt (such as Figure 1 When in use, the positioning belt is directly placed on the patient's chest as a whole, which can simplify the electrode wearing process and reduce the professionalism of electrode placement.
[0003] Although this method simplifies the difficulty of ECG acquisition, due to the differences in chest circumference between different patients, especially when the chest circumference varies greatly, this type of positioning belt has fixed electrode points and cannot change according to the chest circumference, which will cause a certain amount of acquisition position error and have a certain impact on the ECG waveform data. Therefore, one model of positioning belt cannot cover all chest circumference users, and thus cannot accurately collect ECG signals.
[0004] The common solution at present is that manufacturers produce positioning belts of various specifications according to different chest circumferences, and the operator replaces the appropriate positioning belt according to the chest circumference during use. This method of equipping one device with multiple positioning belts will increase the complexity of pre-collection operations, and in rapid ECG screening scenarios such as hospitals, it does not conform to actual user habits. For example, operators are unwilling to increase the operation of measuring chest circumference to change the positioning belt model; if the solution of visually selecting different types of positioning belts based on chest circumference is adopted, although the measurement step can be omitted, there is still a certain subjective error, and it is impossible to avoid the operation steps of replacing positioning belts of other specifications, which leads to a decrease in collection efficiency. Summary of the invention
[0005] In order to solve at least one of the above problems, the present application proposes an ECG electrode positioning belt.
[0006] According to the first aspect of the present application, at least one embodiment of the present application provides an ECG electrode positioning belt, comprising: a main belt; an elastic belt, a first end of the elastic belt is connected to the first end of the main belt, and the elastic belt can be stretched to change the length so that the second end of the elastic belt can fit the second end of the main belt according to the chest size of the user; a basic electrode, arranged on the main belt, for collecting ECG signals when the main belt is in contact with the user; an automatic adjustment electrode, arranged on the main belt, for collecting ECG signals when the main belt is in contact with the user; a host computer, for controlling the opening and closing of the automatic adjustment electrode according to the use length of the elastic belt.
[0007] For example, in some embodiments of the present application, it includes: N basic electrodes, where N is an integer greater than or equal to 1.
[0008] For example, in some embodiments of the present application, it includes: M groups of the automatically adjustable electrodes, M is an integer greater than or equal to 2, and each group of the automatically adjustable electrodes includes at least one electrode.
[0009] For example, in some embodiments of the present application, it also includes: L identity tags, which are arranged in the elastic band, and L is an integer greater than or equal to 2; a sensing unit, which is arranged at the second end of the main band, and when the second end of the elastic band is attached to the second end of the main band, the sensing unit is used to identify the identity tag and send the identity corresponding to the identity tag to the host computer; wherein the host computer is used to determine the use length of the elastic band according to the identity.
[0010] For example, in some embodiments of the present application, the elastic band includes M areas, and the M areas correspond one-to-one to the M groups of automatic adjusting electrodes; the L identity tags are arranged in the elastic band at a first distance; when the host computer determines the use length of the elastic band according to the identity, the host computer controls the automatic adjusting electrodes of the group corresponding to the use area of the elastic band to turn on, and controls the automatic adjusting electrodes of the group corresponding to the non-use area of the elastic band to turn off.
[0011] For example, in some embodiments of the present application, among the M groups of automatically adjusting electrodes, at least two groups share at least one automatically adjusting electrode.
[0012] For example, in some embodiments of the present application, the elastic band includes: a connecting band used to connect with the main band, and the length of the connecting band is greater than the length of the main band and the elastic band being pasted together.
[0013] For example, in some embodiments of the present application, it also includes: a variable resistance wire, which is arranged in the elastic band and is used to deform according to the stretching of the elastic band to change the resistance value; wherein the host computer determines the use length of the elastic band according to the resistance value of the variable resistance wire.
[0014] For example, in some embodiments of the present application, the length of the ECG electrode positioning belt is determined according to the following formula:
[0015] L 0 =L 1 +L 2
[0016]
[0017] Among them, L 0is the length of the ECG electrode positioning belt when not stretched, L 1 is the length of the main belt, L 2 is the length of the elastic band when it is not stretched, L max is the length of the ECG electrode positioning belt when it reaches the maximum stretching degree, and α is the stretching range of the ECG electrode positioning belt.
[0018] For example, in some embodiments of the present application, the value range of α is 70%-75%.
[0019] Through the above-mentioned example embodiments, the ECG electrode positioning belt provided by the present application can adaptively switch different groups of automatically adjustable electrodes according to the user's chest circumference to test the user's ECG signal, thereby realizing the function of one positioning belt to accurately collect ECG signals of patients with different chest circumferences.
[0020] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] By describing in detail exemplary embodiments thereof with reference to the accompanying drawings, the above and other objects, features and advantages of the present application will become more apparent. The accompanying drawings described below are only some embodiments of the present application, and are not intended to limit the present application.
[0022] Figure 1 A schematic diagram of an existing positioning belt type 6-electrode integrated positioning belt is shown;
[0023] Figure 2 A schematic diagram showing an exemplary embodiment of an ECG electrode positioning belt;
[0024] Figure 3 A schematic diagram showing the outside of an ECG electrode positioning belt of an exemplary embodiment;
[0025] Figure 4 A schematic diagram showing the inside of an ECG electrode positioning belt of an exemplary embodiment;
[0026] Figure 5 A schematic diagram showing the circuitry for automatic switching of internal electrode access points of an ECG electrode positioning belt according to an exemplary embodiment. DETAILED DESCRIPTION
[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.
[0028] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of these specific details, or other modes, components, materials, devices, etc. may be adopted. In these cases, known structures, methods, devices, implementations, materials or operations will not be shown or described in detail.
[0029] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.
[0030] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.
[0031] Those skilled in the art will appreciate that the drawings are merely schematic diagrams of example embodiments, and the modules or processes in the drawings are not necessarily necessary for implementing the present application, and therefore cannot be used to limit the scope of protection of the present application.
[0032] Figure 2 A schematic diagram illustrating an ECG electrode positioning strap according to an exemplary embodiment.
[0033] like Figure 2 As shown, the ECG electrode positioning belt includes: a main belt 101, an elastic belt 102, basic electrodes 103, automatic adjustment electrodes 104 and a host computer (not shown in the figure).
[0034] The first end of the elastic band 102 is connected to the first end of the main band 101. The elastic band 102 can be stretched to change its length, so that the second end of the elastic band 102 can fit the second end of the main band 101 according to the chest size of the user. The basic electrode 103 is arranged on the main band 101, and is used to collect ECG signals when the main band 101 fits the user. The automatic adjustment electrode 104 is arranged on the main band, and is used to collect ECG signals when the main band 101 fits the user. The host computer is used to control the opening and closing of the automatic adjustment electrode 104 according to the use length of the elastic band 102.
[0035] According to an exemplary embodiment, the ECG electrode positioning belt includes: N basic electrodes and M groups of automatically adjustable electrodes, N is an integer greater than or equal to 1, M is an integer greater than or equal to 2, and each group of automatically adjustable electrodes includes at least one electrode.
[0036] like Figure 2 As shown, the ECG electrode positioning belt includes: 3 basic electrodes V1, V2 and V3, 3 sets of automatic adjustment electrodes: small, medium and large. The small, medium and large sizes all include three automatic adjustment electrodes V4, V5 and V6.
[0037] According to some embodiments, among the M groups of auto-regulating electrodes, at least two groups share at least one auto-regulating electrode. Figure 2 As shown, the automatically adjusting electrode V6 of the small trumpet group is the automatically adjusting electrode V5 of the large trumpet group.
[0038] The ECG electrode positioning belt provided in the present application can adaptively switch different groups of automatically adjustable electrodes according to the user's chest circumference to test the user's ECG signal, thereby realizing the function of accurately collecting ECG signals of patients with different chest circumferences with one positioning belt.
[0039] Option 1: Figure 3 As shown, the ECG electrode positioning belt also includes: L identity tags (not shown in the figure) and a sensing unit 105. The identity tag is set in the elastic band 102, and L is an integer greater than or equal to 2. The sensing unit 105 is set at the second end of the main band 101. When the second end of the elastic band 102 is attached to the second end of the main band 101, the sensing unit 105 is used to identify the identity tag and send the identity corresponding to the identity tag to the host computer. The host computer is used to determine the use length of the elastic band 102 according to the identity.
[0040] According to an exemplary embodiment, the elastic band 102 includes M regions. The M regions of the elastic band 102 correspond one-to-one to the M groups of automatically adjusting electrodes 104. Figure 3 As shown, the elastic band includes 3 areas: small, medium and large, which correspond one to one with the groups of automatically adjusting electrodes.
[0041] L identity tags are arranged in the elastic band at a first distance, and multiple identity tags of the same type can be implanted in one area of the elastic band. When the host computer determines the use length of the elastic band according to the identity, the host computer controls the automatic adjustment electrodes of the group corresponding to the use area of the elastic band to be turned on, and the automatic adjustment electrodes of the group corresponding to the non-use area of the elastic band to be turned off.
[0042] According to some embodiments, the identity tag may be an NFC identification coil, and this application only takes this as an example, but is not limited to this.
[0043] For example, after the sensing unit 105 recognizes the identity tag in the small area of the elastic band, the small identity is sent to the host computer. The host computer controls the automatic adjustment electrodes of the small group to start working, and the automatic adjustment electrodes of the medium and large groups to close. As shown in the following Table 1:
[0044]
[0045] Table 1 Correspondence between tag recognition and automatic adjustment of electrode access points
[0046] Figure 5 A schematic diagram showing the circuitry for automatic switching of internal electrode access points of an ECG electrode positioning belt according to an exemplary embodiment.
[0047] by Figure 5 Taking ECG electrode positioning belt as an example, the circuit diagram of automatic switching of electrode access points includes: 11 electrodes on the ECG electrode positioning belt: basic electrodes V1, V2, V3 and automatic adjustment electrodes V4 small, V4 medium, V4 large, V5 small, V5 medium, V5 large (V6 small), V6 medium, V6 large; among which V5 large and V6 small share one electrode, and each electrode is connected to the emitter-follower circuit in turn to ensure high impedance at the front end of the circuit.
[0048] Among them, the basic electrodes V1, V2, and V3 are fixed and cannot be switched, so they are directly output to the post-processing circuit, such as a host computer, through the V1, V2, and V3 terminals on the right.
[0049] The sensing unit sends the identity to the host computer according to the sensed identity tag, and the host computer outputs the corresponding control signal to the pin of the logic switch, selects the corresponding automatic adjustment electrode through the logic switch, so as to obtain the ECG signal collected by the corresponding automatic adjustment electrode, and outputs it to the post-processing circuit through the V4, V5, and V6 terminals on the right side. The following Table 2 is an example:
[0050]
[0051]
[0052] Table 2 Automatic adjustment of electrode switching relationship table
[0053] For example, if the identity tag sensed by the sensing unit is small, the small identity tag is sent to the host computer. The host computer outputs a low level to pins CTL1A, CTL2A and CTL3A, and outputs a high level to pins CTL1B, CTL2B and CTL3B, so that pin Y and pin Y2 inside the logic switch are connected, and the ECG signal collected by the electrodes V4 small-V5 small-V6 small is automatically adjusted and output to the host computer through the right V4, V5, and V6 terminals.
[0054] According to some embodiments, the logic switching switch of the present application adopts the SGM48780 logic switch, and the present application only takes this as an example, but is not limited to this.
[0055] The length of the ECG electrode positioning belt is determined by the following formula:
[0056] L 0 =L 1 +L 2
[0057]
[0058] Among them, L 0 L is the length of the ECG electrode positioning belt when it is not stretched. 1 The length of the main belt 101, L 2 is the length of the elastic band 102 when it is not stretched, L max is the length of the ECG electrode positioning belt when it reaches the maximum stretching degree, and α is the stretching range of the ECG electrode positioning belt.
[0059] The ECG electrode positioning belt is divided into a non-stretchable portion of the main belt 101 and a stretchable portion of the elastic belt 102. With respect to the length of the elastic belt 102 and the implantation position of the automatic identification tag, considering the requirement that the elastic belt 102 fits the human body tightly and comfortably after being stretched, it is found through testing that when the length of the ECG electrode positioning belt before stretching is in the range of 70%-75% of the chest circumference, that is, the value range of α is 70%-75%, it can fit the skin tightly without causing a sense of looseness or a greater sense of oppression.
[0060] For example, according to the above principle, the value range of α is 72%, and three positioning belts including three areas are designed, as shown in Table 3 below, wherein the main belt 101 is 531 mm long, and in order to cover the chest circumference range of 80-120 cm, as shown in Table 3 below. Figure 4 As shown, the minimum length of the elastic band is rounded down, the maximum length is rounded up, and other ranges are rounded up.
[0061]
[0062] Table 3 Elastic band length correspondence table
[0063] According to the information on the characteristics of human chest size and experimental test data, human chest size can be defined as small, medium and large, which can basically cover the chest circumference range of most adults (80cm-120cm). According to different chest circumference users, the corresponding waist scale point on the elastic band is pressed to the sensing unit 105, which can solve the problem of large tightness differences in the original wearing without scales and relying entirely on feeling, and can reduce the risk of poor contact of electrode points after wearing due to large tightness differences.
[0064] Solution 2: The ECG electrode positioning belt also includes: a variable resistance wire (not shown in the figure).
[0065] The variable resistor wire is arranged in the elastic band 102, and is used to change the resistance value according to the stretching of the elastic band 102. When the elastic band 102 is stretched to different lengths, the deformation amount is different, resulting in a change in the resistance value. The host computer determines the use length of the elastic band according to the resistance value of the variable resistor wire.
[0066] For example, when the resistance value detected by the host computer is the resistance value corresponding to the medium area, the host computer controls the automatic adjustment electrodes of the medium group corresponding to the elastic band use area to turn on, and the automatic adjustment electrodes of other groups to turn off.
[0067] According to the exemplary embodiment, in order to make up for the missing length of the elastic band 102 after being attached to the main belt 101, the elastic band 102 further includes a connecting band 1021. The connecting band 1021 is used to connect to the main belt 101. The length of the connecting band 1021 is greater than or equal to the length of the elastic band 102 and the main belt 101 at the attachment point.
[0068] According to some embodiments, the elastic band 102 and the main band 101 may be joined together using Velcro, and this application only takes this as an example, but is not limited thereto.
[0069] For example, if the solution of solution 1 is adopted, the place where the elastic band 102 and the main band 101 are attached is set as the sensing unit 105. Figure 4 As shown, the width of the sensing unit 105 on the main belt 101 is designed to be 5 cm, and the distance from the edge of the main belt 101 is 1 cm. The corresponding elastic belt 102 has an extra 6 cm length of the connecting belt 1021 at the starting position of the connection with the main belt 101, so that the identity tag on the elastic belt 102 can be fully bonded to the sensing unit 105.
[0070] It should be clearly understood that the present application describes how to form and use specific examples, but the present application is not limited to any details of these examples. On the contrary, based on the teaching of the content disclosed in the present application, these principles can be applied to many other embodiments.
[0071] In addition, it should be noted that the above figures are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not intended to be limiting. It is easy to understand that the processes shown in the above figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.
[0072] The exemplary embodiments of the present application are specifically shown and described above. It should be understood that the present application is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present application is intended to cover various modifications and equivalent configurations included within the objectives and scope of the appended claims.
Claims
1. An electrocardiogram electrode positioning belt, characterized in that: include: Main belt; An elastic band, a first end of which is connected to a first end of the main band, and the elastic band can be stretched to change its length, so that a second end of the elastic band can fit with a second end of the main band according to a user's chest size; Basic electrodes, arranged on the main belt, for collecting electrocardiogram signals when the main belt is attached to the user; Automatically adjustable electrodes, disposed on the main belt, for collecting electrocardiographic signals when the main belt is in contact with the user; The host computer is used to control the opening and closing of the automatic adjustment electrode according to the use length of the elastic band.
2. The ECG electrode positioning belt according to claim 1, characterized in that: include: There are N basic electrodes, where N is an integer greater than or equal to 1.
3. The ECG electrode positioning belt according to claim 1, characterized in that: include: There are M groups of the automatic adjusting electrodes, where M is an integer greater than or equal to 2, and each group of the automatic adjusting electrodes includes at least one electrode.
4. The ECG electrode positioning belt according to claim 3, characterized in that: Also includes: L identity tags are arranged in the elastic band, where L is an integer greater than or equal to 2; A sensing unit is arranged at the second end of the main belt, and when the second end of the elastic band is attached to the second end of the main belt, the sensing unit is used to identify the identity tag and send the identity corresponding to the identity tag to the host computer; Wherein, the host computer is used to determine the use length of the elastic band according to the identity.
5. The ECG electrode positioning belt according to claim 4, characterized in that: The elastic band includes M areas, and the M areas correspond one-to-one to the M groups of automatic adjustment electrodes; The L identity tags are arranged in the elastic band at a first distance apart; When the host computer determines the use length of the elastic band according to the identity, the host computer controls the automatic adjustment electrodes corresponding to the use area of the elastic band to be turned on, and controls the automatic adjustment electrodes corresponding to the non-use area of the elastic band to be turned off.
6. The ECG electrode positioning belt according to claim 3, characterized in that: Among the M groups of automatically adjusting electrodes, at least two groups share at least one automatically adjusting electrode.
7. The ECG electrode positioning belt according to claim 1, characterized in that: The elastic band comprises: A connecting belt is used to connect with the main belt, and the length of the connecting belt is greater than the length of the main belt and the elastic belt being pasted together.
8. The ECG electrode positioning belt according to claim 3, characterized in that: Also includes: A variable resistance wire is arranged in the elastic band and is used to deform according to the stretching of the elastic band to change the resistance value; Wherein, the host computer determines the use length of the elastic band according to the resistance value of the variable resistor wire.
9. The ECG electrode positioning belt according to claim 1, characterized in that: The length of the ECG electrode positioning belt is determined according to the following formula: L0=L1+L2 Wherein, L0 is the length of the ECG electrode positioning belt when it is not stretched, L1 is the length of the main belt, L2 is the length of the elastic belt when it is not stretched, and L max is the length of the ECG electrode positioning belt when it reaches the maximum stretching degree, and α is the stretching range of the ECG electrode positioning belt.
10. The ECG electrode positioning belt according to claim 9, characterized in that: The value range of α is 70%-75%.