A take-up device and an electrocardiogram monitoring device

Abstract

The utility model discloses an embodiment provides a kind of take-up device and electrocardiograph monitoring equipment, it is related to wiring harness storage technical field.The take-up device includes: first shell, take-up coil, mainspring, first wire and locking assembly;The take-up coil is rotatably installed in the inside of the first shell, the fixed end of the mainspring is installed in the inside of the first shell, the movable end of the mainspring is connected with the inner wall of the take-up coil, the take-up coil is wound with second wire, the connecting end of the second wire is fixedly connected with the take-up coil, the second wire is stretched out the first shell, the locking assembly is connected with the first shell, the second wire passes through the locking assembly.This device reduces the labor intensity of operator, and avoid wire to be exposed, winding or pollution outside, improve equipment neatness and service life.

Description

Technical Field

[0001] This utility model relates to the field of wire harness storage technology, specifically to a wire harness storage device and an electrocardiogram monitoring device. Background Technology

[0002] An electrocardiogram (ECG) monitor is a medical device used to collect and record human cardiac electrical signals. It is widely used in hospital intensive care, emergency transport, and home remote monitoring. Existing ECG monitors typically include a main unit, electrode pads, and multiple connecting wires (i.e., ECG monitoring harness). One end of the harness connects to the main unit, and the other end connects to multiple electrode pads attached to the patient's skin for real-time acquisition of cardiac electrical activity signals. Due to monitoring requirements, the harness usually contains multiple wires and must maintain a certain length to meet the connection requirements of different patient positions and usage scenarios.

[0003] However, existing ECG monitors generally suffer from inconveniences in terms of cable management and deployment. On the one hand, multiple leads are prone to tangling and knotting when not in use, affecting not only storage efficiency but also potentially causing cable damage. On the other hand, when rapid deployment of the cable bundle is required for emergency procedures or clinical monitoring, medical staff often need to spend considerable time separating and straightening the cables, reducing operational efficiency and potentially impacting the timeliness of emergency care. Therefore, achieving orderly storage and rapid deployment of ECG monitor cable bundles has become an urgent technical problem to be solved. Utility Model Content

[0004] According to embodiments of this utility model, a wire take-up device and an electrocardiogram (ECG) monitoring device are provided to solve the problems mentioned in the background art.

[0005] In a first aspect, a wire take-up device is provided.

[0006] The take-up device includes: a first housing, a take-up coil, a spring, a first lead wire, and a locking assembly; the take-up coil is rotatably mounted inside the first housing, the fixed end of the spring is mounted inside the first housing, the movable end of the spring is connected to the inner wall of the take-up coil, a second lead wire is wound on the take-up coil, the connecting end of the second lead wire is fixedly connected to the take-up coil, and the connecting end of the second lead wire extends to the axis of the take-up coil and passes through the first housing, the connecting ends of the first lead wire and the second lead wire are rotatably connected, the protruding end of the second lead wire extends out of the first housing, the locking assembly is connected to the first housing, and the second lead wire passes through the locking assembly.

[0007] Preferably, the edge of the take-up coil is provided with two limiting portions, and the two limiting portions form a winding space for the second wire.

[0008] Preferably, the inner wall of the first housing is rotatably connected to three support wheels, and the inner wall of the take-up coil contacts the support wheels, so that the take-up coil is rotatably connected to the inner wall of the first housing.

[0009] Preferably, the first housing is provided with a limiting frame inside, the limiting frame is provided with a curved part, the curved part contacts the edge of the limiting part, and the limiting part is slidably connected to the curved part.

[0010] Preferably, the fixed end of the mainspring has a hexagonal insertion hole, a hexagonal insertion rod is fixedly installed inside the first housing, the fixed end of the mainspring is sleeved on the hexagonal insertion rod, the movable end of the mainspring has a circular hole, and the inner wall of the winding coil is provided with an insertion shaft, which is inserted into the circular hole.

[0011] Preferably, the connecting end of the second conductor is a rigid conductor, and a reinforcing frame is provided on the take-up coil, the reinforcing frame being fixedly connected to the connecting end of the second conductor.

[0012] Preferably, the locking assembly includes a second housing, a driving member, three transmission rods, three locking blocks, and a paddle; the second housing is fixedly connected to the first housing, the locking blocks are slidably installed inside the second housing, the driving member is rotatably installed inside the second housing, the driving member is provided with three driving slots, the transmission rods are fixedly connected to the locking blocks, the transmission rods extend into the driving slots and are slidably connected to the driving slots, a notch is provided on the side wall of the second housing, and the paddle is fixedly connected to the driving member.

[0013] Preferably, the inner wall of the second housing is provided with three sets of strip-shaped protrusions, with two protrusions in each set, and a sliding space for the locking block is formed between the two protrusions.

[0014] In a second aspect of this utility model, an electrocardiogram (ECG) monitoring device is provided, including the above-mentioned wire take-up device and an ECG monitoring instrument body. The ECG monitoring instrument body is provided with a display screen. The ECG monitoring instrument body is connected to the end of the first wire away from the first housing, and the extended end of the second wire is connected to an ECG patch.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages: This invention provides a winding device. First, a first lead is connected to the signal input terminal of the electrocardiogram (ECG) monitor body to ensure a conductive connection. At this time, the spring is in its initial winding state, and the second lead is completely wound around the winding coil and housed inside the first housing. When connecting a patient for ECG monitoring, the operator can directly pull the second lead. Under the pulling action, the second lead causes the winding coil to rotate around its axis and gradually pull out of the housing. Simultaneously, because the connection end of the second lead is rotatably connected to the first lead, the conductor contact between the two is continuously maintained, ensuring stable signal transmission.

[0016] As the second lead is extended, the winding coil continues to rotate and stretch the spring, storing elastic potential energy. Once the extended length reaches the required monitoring length, the user locks the second lead using a locking mechanism to prevent it from retracting during use, thus achieving stable monitoring. This structure is particularly suitable for scenarios in clinical settings where lead length adjustments are frequent, improving operational efficiency.

[0017] After monitoring is completed, the operator can release the locking component from the second wire. Under the action of its elastic restoring force, the spring drives the take-up coil to rotate in the opposite direction, causing the second wire wound on its surface to be rewound and re-enclosed inside the first housing. The entire recycling process is completed automatically, reducing the operator's labor intensity and preventing the wire from being exposed, tangled or contaminated, thus improving the cleanliness and service life of the equipment.

[0018] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0019] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A three-dimensional structural schematic diagram of a take-up device according to an embodiment of the present invention is shown; Figure 2 A first-view schematic diagram of the internal structure of the first housing of the take-up device according to an embodiment of the present invention is shown. Figure 3 A second-view schematic diagram of the internal structure of the first housing of the take-up device according to an embodiment of the present invention is shown; Figure 4 A three-dimensional structural schematic diagram of the take-up coil of the take-up device according to an embodiment of the present invention is shown; Figure 5An exploded structural diagram of the internal structure of the first housing of the take-up device according to an embodiment of the present invention is shown. Figure 6 An exploded view of the locking assembly of the take-up device according to an embodiment of the present invention is shown. Figure 7 A cross-sectional view of the second housing of the take-up device according to an embodiment of the present invention is shown. Figure 8 A three-dimensional structural schematic diagram of an electrocardiogram monitoring device according to an embodiment of the present invention is shown.

[0020] Tag Name 1-First housing, 11-Limiting frame, 12-Hexagonal insertion rod, 2-Coil coil, 21-Limiting part, 22-Insertion shaft, 23-Reinforcing frame, 3-Current spring, 31-Hexagonal insertion hole, 32-Round hole, 4-First wire, 5-Locking assembly, 51-Second housing, 511-Protrusion, 52-Driver, 521-Drive groove, 53-Transmission rod, 54-Locking block, 55-Pulse, 6-Second wire, 7-ECG monitor body, 8-ECG patch, 9-Support wheel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0023] like Figures 1 to 8 As shown, in this embodiment, the take-up device includes a first housing 1, a take-up coil 2, a spring 3, a first lead 4, and a locking assembly 5. The first housing 1, used to house and support the internal components, is a hollow structure and is preferably made of insulating material to ensure the safety of the medical electrical appliance. The take-up coil 2 is rotatably mounted inside the first housing 1. Specifically, this can be achieved by providing a rotating shaft or shaft bracket within the first housing 1, allowing the take-up coil 2 to rotate around this shaft, ensuring smooth rotation during lead winding and unwinding and preventing wobbling or deviation during rotation.

[0024] The fixed end of the spring 3 is mounted on the inner wall of the first housing 1, and its movable end is connected to the inner wall of the take-up coil 2. Thus, as the take-up coil 2 rotates, it drives the spring 3 to wind or release. Specifically, when the take-up coil 2 rotates as the second wire 6 is pulled out, the spring 3 is forced to stretch, accumulating elastic potential energy. When the take-up coil 2 rotates in the opposite direction under the restoring force of the spring 3, the spring 3 releases its stored elastic potential energy, driving the take-up coil 2 to rotate and achieve automatic wire retraction.

[0025] The second conductor 6 is wound around the outer surface of the take-up coil 2. Its connecting end is connected to the fixed connection part of the take-up coil 2 and leads outward from the axis of the take-up coil 2 through the first housing 1, realizing the electrical connection and mechanical transition between the conductor and the inside of the housing. The connecting end is also connected to the first conductor 4 by a rotary connection, preferably a slip ring connection or a coaxial rotary connection structure, to achieve a reliable electrical connection between the conductors and allow their relative rotation. With this connection method, when the take-up coil 2 rotates, the connecting end of the second conductor 6 can rotate relative to the first conductor 4, thereby avoiding conductor breakage or poor contact due to cable entanglement.

[0026] The other end of the second wire 6 is the protruding end, which extends from the opening of the first housing 1 and passes through the locking assembly 5. The locking assembly 5 is fixedly connected to the first housing 1 and is used to restrict further movement of the second wire 6 after the user has pulled it out to the required length, preventing the wire from automatically rewinding when not in use. The locking assembly 5 can achieve locking and releasing control of the second wire 6 through a mechanical stop structure (such as a ratchet, a snap-lock, a damping plate, etc.). Its structure is designed for easy one-handed operation, improving operational convenience.

[0027] In actual use, the user first connects the first lead 4 to the signal input terminal of the ECG monitor body 7 to ensure a conductive connection. At this time, the spring 3 is in the initial winding state, and the second lead 6 is completely wound around the winding coil 2 and housed inside the first housing 1. When it is necessary to connect a patient for ECG monitoring, the operator can directly pull the second lead 6. Under the pulling action, the second lead 6 drives the winding coil 2 to rotate around its axis and gradually pulls it out of the housing. At the same time, since the connection end of the second lead 6 is rotatably connected to the first lead 4, the conductor contact between the two is maintained continuously, and the signal transmission is stable.

[0028] As the second lead 6 is extended further, the winding coil 2 continues to rotate and stretch the spring 3, storing elastic potential energy. Once the extended length reaches the actual monitoring requirement, the user locks the second lead 6 using the locking component 5 to prevent it from retracting during use, thus achieving stable monitoring. This structure is particularly suitable for scenarios in clinical settings where lead lengths are frequently adjusted, improving operational efficiency.

[0029] After the monitoring is completed, the operator can release the locking component 5 from the second wire 6. Under the action of its elastic restoring force, the spring 3 drives the take-up coil 2 to rotate in the opposite direction, which drives the second wire 6 wrapped on its surface to rewind and re-enclose it in the first housing 1. The entire recycling process is completed automatically, which reduces the operator's labor intensity and avoids the wire from being exposed, tangled or contaminated, thus improving the cleanliness and service life of the equipment.

[0030] In this embodiment, two limiting parts 21 are provided at the edge of the take-up coil 2. The two limiting parts 21 are arranged opposite each other on the radial sides of the take-up coil 2, thereby enclosing a winding space for winding the second conductor 6. The limiting part 21 is an annular flange or retaining ring structure, and its height extends outward in the radial direction. It can effectively limit the axial movement of the second conductor 6 during the winding process, ensuring that the second conductor 6 is always wound and arranged within the set trajectory of the take-up coil 2. This avoids damage to the insulation layer caused by random winding, overlapping or uneven force on the conductor, improves the neatness of the conductor winding and the space utilization rate, and thus improves the operational stability of the entire take-up structure and the service life of the conductor.

[0031] In this embodiment, three support wheels 9 are provided on the inner wall of the first housing 1. The three support wheels 9 are equidistantly arranged along the circumference and are rotatably connected to the inner wall of the first housing 1 through a bearing structure or pin connection. The inner wall of the take-up coil 2 contacts the outer ring of the three support wheels 9, thereby achieving stable support and low-friction rotation of the take-up coil 2 under three-point support. This structure can effectively reduce frictional resistance and improve rotational flexibility during the rotation of the take-up coil 2, and prevent the take-up coil 2 from becoming eccentric, wobbling, or contacting and wearing against the inner wall of the housing during rotation, significantly improving the durability of the device and the smoothness of wire winding and unwinding.

[0032] In this embodiment, a limiting frame 11 is further provided inside the first housing 1 to further constrain the movement trajectory of the take-up coil 2. The limiting frame 11 is fixedly disposed in the inner cavity of the first housing 1, and has a curved portion with an arc or inclined structure. The curved portion is in contact with the outer edge of the limiting portion 21 and forms a sliding fit with it. The limiting portion 21 slides along the curved portion during the rotation of the take-up coil 2, thereby playing a limiting and guiding role, preventing the take-up coil 2 from radially deviating or tilting, helping to maintain the rotation axis of the take-up coil 2 always aligned with the axis of the housing, improving the structural stability during rotation and the regularity of the wire winding.

[0033] In this embodiment, the fixed end of the mainspring 3 is provided with a hexagonal insertion hole 31, and a matching hexagonal insertion rod 12 is fixedly installed inside the first housing 1. The fixed end of the mainspring 3 is sleeved onto the hexagonal insertion rod 12 through the hexagonal insertion hole 31. Compared with the traditional circular connection, this hexagonal connection has an anti-rotation function, which can effectively prevent the mainspring 3 from rotating and losing its fixing function during the rotation and stretching of the winding coil 2. Structurally, it ensures that the mainspring 3 is only subjected to force and stores energy at the moving end, while its fixed end remains stationary, which helps the mainspring 3 stably provide controllable rebound force.

[0034] Meanwhile, the movable end of the mainspring 3 is provided with a circular hole 32, which is connected to an insert shaft 22 provided on the inner wall of the take-up coil 2. The insert shaft 22 is inserted into the circular hole 32 to form a rotatable connection, so that the mainspring 3 is stretched and stores energy during the rotation of the take-up coil 2. When the take-up coil 2 is released from its locked state, it can rotate under the elastic force of the mainspring 3, thereby realizing the automatic retraction of the second lead 6. The structural fit between the circular hole and the insert shaft ensures reliable connection and flexible rotation, guaranteeing the mechanical stability and mainspring rebound efficiency during repeated operation of the device.

[0035] In this embodiment, a reinforcing frame 23 is specially designed to enhance the structural strength between the connecting end of the second conductor 6 and the take-up coil 2, and to prevent excessive stress on the conductor at the connection point from causing poor contact or breakage. This reinforcing frame 23 is fixedly installed on the inner wall of the take-up coil 2 and is fixedly connected to the connecting end of the second conductor 6. The connecting end of the second conductor 6 is made of rigid conductor, which has higher bending rigidity and structural strength than ordinary flexible conductor. The reinforcing frame 23 provides support and fixation, thereby ensuring that the connecting end will not be damaged by stress concentration during the rotation of the take-up coil 2, or that the stability of the electrical signal transmission will be affected, thus improving the mechanical reliability and electrical connection continuity of the entire take-up device.

[0036] In this embodiment, the locking assembly 5 includes a second housing 51, a driving member 52, three transmission rods 53, three locking blocks 54, and a lever 55. The second housing 51 is fixedly connected to the outer surface of the first housing 1 by means of screwing, snap-fitting, or adhesive bonding, forming an auxiliary structural cavity adjacent to the wire outlet, used to accommodate the relevant mechanisms for locking and controlling the second wire 6. The interior of the second housing 51 is a hollow structure with sufficient cavity space to accommodate the driving member 52, transmission rods 53, and locking blocks 54, and to provide the movement stroke between the components.

[0037] The driving component 52 is rotatably mounted inside the second housing 51, preferably using a centrally located rotating shaft or a pivot pin connection to ensure stable rotation of the driving component 52 around a fixed axis. The driving component 52 has three circumferentially arranged driving grooves 521, evenly distributed at 120° angles on its circumferential surface. Each driving groove 521 extends along an arc-shaped path, i.e., its trajectory is an arc centered on the rotating shaft. Each driving groove 521 is used to form a sliding fit connection with a transmission rod 53. Specifically, one end of the transmission rod 53 is inserted into the driving groove 521 and slides within the groove, while the other end is fixedly connected to the locking block 54, thus forming a force transmission path of "driving component—transmission rod—locking block".

[0038] The three transmission rods 53 are fixedly connected to the corresponding three locking blocks 54, preferably using insertion, thread, or welding methods to achieve a firm connection, ensuring that no loosening or displacement occurs during transmission. The locking block 54 has a slider-like structure and is slidably installed in the inner cavity of the second housing 51. It moves towards or away from the central axis of the second guide wire 6 during sliding, thereby achieving the clamping or releasing function of the guide wire. The locking block 54 is preferably made of engineering plastic or metal material with low elasticity and high structural strength to ensure locking reliability and structural stability.

[0039] To ensure that the locking block 54 moves along a predetermined path during sliding and avoids shaking or jamming, the inner wall of the second housing 51 is provided with three sets of strip-shaped protrusions 511. Each set contains two strip-shaped protrusions 511, which are arranged parallel to each other with a spacing slightly larger than the width of the locking block 54, thus forming a sliding space for constraining the sliding of the locking block 54. The locking block 54 is installed in this sliding space and can move stably along the straight channel between the protrusions under its drive, thereby improving the guidance and responsiveness of the locking block's movement and ensuring accurate and efficient locking action.

[0040] The lever 55 is fixedly connected to the outer edge of the drive member 52, with one end extending from a notch in the side wall of the second housing 51, facilitating direct manual operation by the operator. By moving the lever 55, the drive member 52 can be rotated around its mounting axis. The rotation of the drive member 52 causes the transmission rod 53, which is slidably connected to it, to slide along an arc in the arc-shaped drive groove 521, thereby causing the transmission rod 53 to produce linear inward or outward movement. This linear movement, in turn, causes the locking block 54 to slide towards or away from each other, completing the clamping and releasing of the second wire 6.

[0041] Specifically, when the three locking blocks 54 slide simultaneously toward the center of the conductor under the drive of the transmission rod 53, they will work together on the outer wall of the second conductor 6 to form a stable clamping and locking, thereby preventing the conductor from accidentally springing back or loosening during use; when the lever 55 is moved in the opposite direction, the drive member 52 rotates in the opposite direction, causing the transmission rod 53 to slide in the opposite direction, and the three locking blocks 54 slide away from the second conductor 6 in opposite directions, releasing the constraint on the conductor, so that the second conductor 6 can automatically rewind under the action of the spring 3.

[0042] It is worth noting that the side wall of the driving component 52 and the inner wall of the second housing 51 are designed to fit together, maintaining a certain degree of friction between their surfaces. This frictional resistance keeps the driving component 52 in place and prevents it from rotating when not being moved by external force, thus ensuring that the three locking blocks 54 always remain locked or released when not in operation. This prevents changes in the locking state due to accidental contact or vibration, improving the safety and operational stability of the entire locking system.

[0043] In a second aspect of this utility model, an electrocardiogram (ECG) monitoring device is provided, which includes the aforementioned cable retractor and ECG monitor body 7. The structure and function of the cable retractor have been detailed in the foregoing embodiments and will not be repeated here. The improvement of this embodiment lies in integrating the cable retractor with the ECG monitor body 7 to form an integrated portable ECG monitoring system, thereby improving the overall ease of use, portability, and clinical applicability of the device.

[0044] The ECG monitor body 7 integrates core units such as a signal acquisition and processing circuit, an ECG signal processing module, a control module, and a power supply module for real-time acquisition, filtering, analysis, storage, and display of ECG signals. The ECG monitor body 7 is equipped with a display screen, which can be in the form of an LCD, OLED, or e-ink screen, to display the acquired ECG waveforms, heart rate data, and device operating status in real time, facilitating medical personnel or users to intuitively understand the patient's cardiac health status.

[0045] One end of the first lead wire 4 is electrically connected to the signal input interface of the ECG monitor body 7, and the other end is electrically and mechanically connected to the connection end of the second lead wire 6 in the take-up device. The connection method here preferably employs a rotary joint, an electric slip ring, or other structure that can maintain a stable electrical connection under relative rotation conditions, thereby ensuring continuous conduction between the first lead wire 4 and the second lead wire 6 while the take-up coil 2 is rotating, thus guaranteeing the integrity of the ECG signal and the reliability of its transmission.

[0046] In practical use, medical staff first connect the ECG monitor body 7 to the take-up device via the first lead wire 4. Then, by pulling out the protruding end of the second lead wire 6, they connect it to the ECG patch 8, which contains electrodes. The ECG patch 8 is typically a disposable medical adhesive electrode, containing a conductive adhesive layer and sensing electrodes, used to be attached to target locations such as the chest or arm to collect real-time ECG signals from the body surface. The protruding end of the second lead wire 6 is electrically connected to the ECG patch 8 via a plug, electrode connector, or other structures to achieve effective signal transmission.

[0047] During operation, the user can pull out the second lead 6 to the required length according to the patient's body shape or position. As the lead is pulled out, the winding coil 2 rotates, causing the internal spring 3 to accumulate elastic potential energy. The locking component 5, in conjunction with this action, fixes the second lead 6 in the desired position, preventing accidental operation due to lead rebound. After monitoring is complete, the locking state is released, and the restoring force of the spring 3 automatically winds the second lead 6 back into the housing, achieving automatic wire harness storage and improving work efficiency and the standardization of wire organization.

[0048] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A take-up device, characterized in that, include: The first housing (1), take-up coil (2), spring (3), first wire (4), and locking assembly (5) are rotatably mounted inside the first housing (1), the fixed end of the spring (3) is mounted inside the first housing (1), the movable end of the spring (3) is connected to the inner wall of the take-up coil (2), a second wire (6) is wound on the take-up coil (2), the connecting end of the second wire (6) is fixedly connected to the take-up coil (2), and the connecting end of the second wire (6) extends to the axis of the take-up coil (2) and passes through the first housing (1), the connecting end of the first wire (4) and the connecting end of the second wire (6) are rotatably connected, the protruding end of the second wire (6) extends out of the first housing (1), the locking assembly (5) is connected to the first housing (1), and the second wire (6) passes through the locking assembly (5).

2. The take-up device according to claim 1, characterized in that, The edge of the take-up coil (2) is provided with two limiting parts (21), and the two limiting parts (21) form a winding space for the second wire (6).

3. The take-up device according to claim 2, characterized in that, The inner wall of the first housing (1) is rotatably connected to three support wheels (9), and the inner wall of the take-up coil (2) contacts the support wheels (9), so that the take-up coil (2) and the inner wall of the first housing (1) are rotatably connected.

4. The take-up device according to claim 3, characterized in that, The first housing (1) is provided with a limiting frame (11) inside. The limiting frame (11) is provided with a curved part. The curved part contacts the edge of the limiting part (21), and the limiting part (21) is slidably connected to the curved part.

5. The take-up device according to claim 1, characterized in that, The fixed end of the spring (3) is provided with a hexagonal insertion hole (31). A hexagonal insertion rod (12) is fixedly installed inside the first housing (1). The fixed end of the spring (3) is sleeved on the hexagonal insertion rod (12). The movable end of the spring (3) is provided with a round hole (32). The inner wall of the winding coil (2) is provided with a shaft (22). The shaft (22) is inserted into the round hole (32).

6. The take-up device according to claim 1, characterized in that, The connecting end of the second conductor (6) is a rigid conductor, and a reinforcing frame (23) is provided on the take-up coil (2), and the reinforcing frame (23) is fixedly connected to the connecting end of the second conductor (6).

7. The take-up device according to claim 1, characterized in that, The locking assembly (5) includes a second housing (51), a driving member (52), three transmission rods (53), three locking blocks (54), and a paddle (55); the second housing (51) is fixedly connected to the first housing (1), the locking blocks (54) are slidably installed in the second housing (51), the driving member (52) is rotatably installed inside the second housing (51), the driving member (52) is provided with three driving grooves (521), the transmission rods (53) are fixedly connected to the locking blocks (54), the transmission rods (53) extend into the driving grooves (521) and are slidably connected to the driving grooves (521), the side wall of the second housing (51) is provided with a notch, and the paddle (55) is fixedly connected to the driving member (52).

8. The take-up device according to claim 7, characterized in that, The inner wall of the second housing (51) is provided with three sets of strip protrusions (511), each set of strip protrusions (511) has two protrusions, and the sliding space of the locking block (54) is formed between the two strip protrusions (511).

9. An electrocardiogram (ECG) monitoring device, characterized in that, The device includes the wire take-up device and the electrocardiogram monitor body (7) as described in any one of claims 1 to 8. The electrocardiogram monitor body (7) is provided with a display screen. The electrocardiogram monitor body (7) is connected to the end of the first lead wire (4) away from the first housing (1). The extended end of the second lead wire (6) is connected to an electrocardiogram patch (8).

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