Electrode patch suitable for limb electrocardiogram

Abstract

The utility model relates to the technical field of electrode patches, in particular to an electrode patch suitable for limb electrocardiogram. The electrode patch comprises an electrode patch body, the surface of the electrode patch body is electrically connected with a connecting wire, the arc surface of the connecting wire is sleeved with a protection pipe sleeve, one end of the protection pipe sleeve is fixedly connected with the electrode patch body, the arc surface of the protection pipe sleeve is connected with a sliding frame in a sliding mode, and the two sides of the sliding frame are each fixedly connected with two fixing plates. Fixing rods are fixedly connected to the ends, close to each other, of the two fixing plates, supports are rotatably connected to the arc surfaces of the fixing rods, connecting rods are slidably inserted into the supporting plates, and setting blocks are fixedly connected to the two ends of each connecting rod. The problems that after the electrode patch body is pasted, nearby muscles slightly vibrate, the generated vibration enables the edge of the electrode patch body to be warped and not to make contact with the skin, the quality of signal conduction is reduced, electrocardiogram signals become unstable, and reading is inaccurate are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrode patch technology, and in particular to an electrode patch suitable for limb electrocardiogram. Background Technology

[0002] An electrocardiogram (ECG) is an important medical examination method for assessing heart health. It records changes in the heart's electrical activity by placing electrodes on the body surface. Proper electrode placement and limb positioning typically follow specific standards, mainly including four locations: left arm, right arm, left leg, and right leg. This electrode layout helps capture the heart's electrical activity in different directions, thus forming a comprehensive ECG waveform. This not only improves the accuracy of the ECG but also reduces the possibility of noise interference, thereby providing clear cardiac signals.

[0003] Chinese patent application CN201820391735.5 discloses an electrode patch. The key technical point of this invention is that the electrode patch, by setting a first electrode, a ground electrode, and a second electrode on the patch substrate, and connecting the first electrode, ground electrode, and second electrode to connectors of a detection host, allows each connector to detect the potential at the first electrode and the potential at the second electrode respectively. The detection host then calculates the potential difference between the first and second electrodes at various times. In this case, the first electrode is the active electrode, and the second electrode is a reference electrode placed at a point relative to zero potential on the body. Thus, by processing the potential difference between the first and second electrodes, the user's electroencephalogram (EEG) data when using the electrode patch can be obtained. Furthermore, by setting a ground electrode between the first and second electrodes, interference information can be eliminated, resulting in better stability of the electrode patch.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: When the electrode patch is used on the skin surface of the user's limb, because the human limb is naturally curved, the muscles near the electrode patch will vibrate slightly during the process of attaching the electrode patch to the surface of the limb. The resulting vibration will cause the edge of the electrode patch to lift up and not contact the skin, resulting in a decrease in the quality of signal transmission and unstable electrocardiogram signals, leading to inaccurate readings. Therefore, in order to address the above problems, an electrode patch suitable for limb electrocardiograms is proposed. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where slight vibrations occur near the electrode patch, causing the edges of the electrode patch to lift and not contact the skin, resulting in decreased signal transmission quality, unstable ECG signals, and inaccurate readings. Therefore, this invention proposes a suitable limb ECG electrode patch.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrode patch suitable for limb electrocardiograms, comprising an electrode patch body, a connecting wire electrically connected to the surface of the electrode patch body, a protective sleeve fitted over the arc surface of the connecting wire, one end of the protective sleeve being fixedly connected to the electrode patch body, a slide frame slidably connected to the arc surface of the protective sleeve, two fixing plates fixedly connected to both sides of the slide frame, a fixing rod fixedly connected to one end of the two fixing plates that are close to each other, a support rotatably connected to the arc surface of the fixing rod, a connecting rod slidably inserted into the support plate, a setting block fixedly connected to both ends of the connecting rod, a positioning block fixedly connected to one side of the two setting blocks, and two torsion springs fitted over the arc surface of the connecting rod, the two ends of the torsion springs being fixedly connected to the setting block and the support plate respectively.

[0007] The aforementioned components achieve the following effects: they ensure a better fit between the electrode patch and the user's skin, preventing the slight vibration of nearby muscles during application. This vibration can cause the electrode patch to lift off the edges and fail to contact the skin, leading to decreased signal transmission quality, unstable ECG signals, and inaccurate readings. This improves the stability of the device.

[0008] Preferably, a limiting rod is slidably inserted into the slide, one end of the limiting rod is fixedly connected to an elliptical plate, and a groove is formed on the arc surface of the protective sleeve.

[0009] The aforementioned components achieve the following effect: the slide carriage slides on the arc surface of the protective sleeve until the limiting rod is aligned with the groove of the protective sleeve, and the elliptical plate drives the limiting rod to slide into the groove of the protective sleeve within the slide carriage. This prevents the positioning block from detaching from the edge of the electrode body when the connecting wire moves and causes the protective sleeve to shift after the worker touches the electrode body, thus improving the stability of the device.

[0010] Preferably, the arc surface of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the elliptical plate and the slide, respectively.

[0011] The effect achieved by the above components is that the spring force drives the limiting rod to slide in the slide and automatically insert into the protective tube sleeve slot, which improves the speed of the device.

[0012] Preferably, a plurality of counterweights are fixedly connected to the surface of the positioning block, and the size of the limiting rod is adapted to the size of the protective tube sleeve groove.

[0013] The effect achieved by the above components is that the positioning block, along with the counterweight block, presses the electrode patch body as it moves across the surface of the electrode patch, making the electrode patch body adhere more tightly to the skin.

[0014] Preferably, a pressing plate is fixedly connected to the surface of the positioning block.

[0015] The effect achieved by the above components is as follows: the torsion spring drives the setting block to rotate, the setting block drives the positioning block to rotate, and the positioning block drives the pressing plate to rotate, which increases the pressing contact points between the positioning block and the electrode sticker body and forms a triangle with the positioning block, thereby increasing the stability of the positioning block's limit.

[0016] Preferably, the arc surface of the protective sleeve is provided with a limiting groove, and the size of the limiting rod is adapted to the size of the limiting groove.

[0017] The effect achieved by the above components is as follows: the slide is pulled to slide on the arc surface of the protective tube sleeve until the position of the limiting rod is aligned with the position of the limiting groove. The spring force drives the limiting rod to slide into the limiting groove of the protective tube sleeve within the slide, so that the positioning block can be retracted by the staff, reducing the space occupied and making it convenient for the electrode pad body to be carried.

[0018] In summary, the beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, the electrode patch body fits more closely to the user's limb skin surface, avoiding the situation where, when the electrode patch body is used on the user's limb skin surface, due to the natural curvature of the human limb, the nearby muscles will vibrate slightly during the process of sticking the electrode patch body to the limb surface. The resulting vibration will cause the edge of the electrode patch body to lift up and not contact the skin, resulting in a decrease in signal transmission quality, unstable electrocardiogram signals and inaccurate readings, thus improving the stability of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the positioning block in this utility model;

[0022] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0023] Figure 4 In this utility model Figure 2 Enlarged view of point B.

[0024] Legend: 1. Electrode body; 2. Protective sleeve; 3. Slide; 4. Fixing plate; 5. Fixing rod; 6. Support plate; 7. Connecting rod; 8. Setting block; 9. Positioning block; 10. Limiting rod; 11. Elliptical plate; 12. Counterweight; 13. Torsion spring; 14. Pressing plate; 15. Spring; 16. Connecting wire; 17. Limiting groove. Detailed Implementation

[0025] Reference Figure 1-4As shown, this utility model provides a technical solution: a limb electrocardiogram electrode patch, including an electrode patch body 1, a connecting wire 16 electrically connected to the surface of the electrode patch body 1, a protective sleeve 2 covering the arc surface of the connecting wire 16, one end of the protective sleeve 2 being fixedly connected to the electrode patch body 1, a slide 3 slidably connected to the arc surface of the protective sleeve 2, two fixing plates 4 fixedly connected to both sides of the slide 3, and a fixing rod 5 fixedly connected to one end of the two fixing plates 4 that are close to each other. The arc surface of rod 5 is rotatably connected to a support. A connecting rod 7 is slidably inserted into the support plate 6. Both ends of the connecting rod 7 are fixedly connected to a setting block 8. One side of each of the two setting blocks 8 is fixedly connected to a positioning block 9. Two torsion springs 13 are sleeved on the arc surface of the connecting rod 7. The two ends of the torsion springs 13 are fixedly connected to the setting block 8 and the support plate 6, respectively. A limiting rod 10 is slidably inserted into the slide 3. One end of the limiting rod 10 is fixedly connected to an elliptical plate 11. A slot is opened on the arc surface of the protective tube sleeve 2. The slide 3 is pushed to slide on the arc surface of the protective sleeve 2 until the limiting rod 10 is aligned with the slot of the protective sleeve 2. The elliptical plate 11 is then pushed to drive the limiting rod 10 to slide into the slot of the protective sleeve 2 within the slide 3. This prevents the positioning block 9 from detaching from the edge of the electrode body 1 when the connecting wire 16 moves the protective sleeve 2 after the worker applies the electrode body 1, thus improving the stability of the device. A spring 15 is fitted on the arc surface of the limiting rod 10, and the two ends of the spring 15 are fixedly connected to the elliptical plate 11 and the slide 3, respectively. The elastic force of the spring 15 drives the limiting rod 10 to slide automatically into the slot of the protective sleeve 2 within the slide 3, improving the speed of the device. Several counterweights 12 are fixedly connected to the surface of the positioning block 9, and the size of the limiting rod 10 is adapted to the size of the slot of the protective sleeve 2. Positioning block 9, along with counterweight 12, presses against the surface of electrode patch 1 as it moves, ensuring a tighter bond between the electrode patch 1 and the skin. A pressing plate 14 is fixedly connected to the surface of positioning block 9. Torsion spring 13 rotates setting block 8, which in turn rotates positioning block 9, which in turn rotates pressing plate 14. This increases the pressing contact points between positioning block 9 and electrode patch 1, forming a triangle with positioning block 9 and enhancing the stability of positioning block 9. A limiting groove 17 is formed on the arc surface of protective sleeve 2, and the size of limiting rod 10 matches the size of limiting groove 17. Pulling slide carriage 3 along the arc surface of protective sleeve 2 until limiting rod 10 aligns with limiting groove 17, the spring force of spring 15 causes limiting rod 10 to slide within the sliding carriage 3 and insert into limiting groove 17 of protective sleeve 2. This allows staff to easily retract positioning block 9, reducing space occupation and facilitating the carrying of electrode patch 1.

[0026] Working principle: When the operator needs to attach the electrode patch body 1 to the patient's limb surface, firstly, the electrode patch body 1 is attached to the limb surface using the adhesive provided with it. Then, the elliptical plate 11 is pulled, causing the limiting rod 10 to slide within the slide 3 until the limiting rod 10 disengages from the limiting groove 17. The slide 3 is then pulled to slide on the arc surface of the protective sleeve 2. Through the gravity of the counterweight 12 and the internal rotational force generated by the torsion spring 13, the two setting blocks 8 are rotated. The two setting blocks 8 cause the connecting rod 7 to rotate within the support plate 6, making the positioning block 9 slide tightly against the surface of the electrode patch body 1. This achieves a better fit between the electrode patch body 1 and the user's limb skin surface. This avoids the slight vibration of nearby muscles during use, which can cause the edges of the electrode patch body 1 to lift and not contact the skin, resulting in a decrease in signal transmission quality, unstable electrocardiogram signals, and inaccurate readings. This improves the stability of the device.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A limb electrocardiogram electrode patch, comprising an electrode patch body (1), characterized in that: The electrode body (1) is electrically connected to a connecting wire (16). A protective sleeve (2) is fitted on the arc surface of the connecting wire (16). One end of the protective sleeve (2) is fixedly connected to the electrode body (1). A slide (3) is slidably connected to the arc surface of the protective sleeve (2). Two fixing plates (4) are fixedly connected to both sides of the slide (3). A fixing rod (5) is fixedly connected to one end of the two fixing plates (4) that are close to each other. A support plate (6) is rotatably connected to the arc surface of the fixing rod (5). A connecting rod (7) is slidably inserted into the support plate (6). A setting block (8) is fixedly connected to both ends of the connecting rod (7). A positioning block (9) is fixedly connected to one side of the two setting blocks (8). Two torsion springs (13) are fitted on the arc surface of the connecting rod (7). The two ends of the torsion springs (13) are fixedly connected to the setting block (8) and the support plate (6) respectively.

2. The limb electrocardiogram electrode patch according to claim 1, characterized in that: A limiting rod (10) is slidably inserted inside the slide (3), and an elliptical plate (11) is fixedly connected to one end of the limiting rod (10). A slot is opened on the arc surface of the protective sleeve (2).

3. The limb electrocardiogram electrode patch according to claim 2, characterized in that: The arc surface of the limiting rod (10) is fitted with a spring (15), and the two ends of the spring (15) are fixedly connected to the elliptical plate (11) and the slide (3) respectively.

4. The limb electrocardiogram electrode patch according to claim 2, characterized in that: The surface of the positioning block (9) is fixedly connected with several counterweights (12), and the size of the limiting rod (10) is adapted to the size of the groove of the protective sleeve (2).

5. A limb electrocardiogram electrode patch according to claim 4, characterized in that: A pressing plate (14) is fixedly connected to the surface of the positioning block (9).

6. A limb electrocardiogram electrode patch according to claim 4, characterized in that: The protective sleeve (2) has a limiting groove (17) on its arc surface, and the size of the limiting rod (10) is adapted to the size of the limiting groove (17).

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