Lead wire fixing device for electrocardiograph

Abstract

The invention relates to a lead wire fixing device for an electrocardiograph, and relates to the technical field of electrocardiographs. Comprising a machine body, a plurality of fixing bases are installed on the side wall of the machine body, a plurality of rotating bases are rotatably installed in the machine body, winding assemblies are fixed to the side walls of the rotating bases, ratchet wheels are fixed to the surfaces of the rotating bases, a buffering base is rotatably installed in the machine body, a buffering block is installed on the side wall of the buffering base, and ratchets are rotatably installed on the surface of the buffering base. According to the electrocardiograph lead wire winding device, through the arrangement of the fixing base, the buffering base, the ratchets, the ratchet wheel and the winding assembly, lead wires of an electrocardiograph are wound and arranged in order, disordered winding of the lead wires is avoided, and the hidden danger of poor contact caused by winding is avoided; meanwhile, the length of the lead wire can be flexibly adjusted according to different scenes, the adaptation requirements of patients with different body types are met, free stretching is achieved, the position is automatically locked after adjustment, and length rebound is avoided.

Description

Technical Field

[0001] This invention relates to the field of electrocardiograph technology, specifically to a lead wire fixing device for an electrocardiograph. Background Technology

[0002] As a core medical electronic device for non-invasive diagnosis of cardiovascular diseases in the clinical medical field, the electrocardiograph (ECG) deeply integrates biomedical engineering, electronic information technology, and signal processing technology. It is the core carrier for technological iteration in the field of ECG signal detection and analysis, and is widely applicable to various scenarios such as emergency rescue, outpatient treatment, and health check-ups. It provides irreplaceable key technical support for the early screening, accurate diagnosis, and efficacy evaluation of cardiovascular diseases such as arrhythmia, myocardial ischemia, and myocardial infarction. It is a basic core device in the clinical cardiovascular diagnosis and treatment system. Early ECG detection equipment had a simple structure and could only record single-lead signals. The signal capture accuracy was low and the anti-interference ability was poor, which made it difficult to meet the needs of accurate clinical diagnosis. With the development of medical electronic components and signal processing technology, modern ECG machines have achieved a leapfrog upgrade from analog recording to digital analysis and from single-lead to multi-lead synchronous acquisition. The technical adaptability and diagnostic reliability have been greatly improved. The lead wires of the ECG machine are the key hub connecting the electrodes and the host signal processing module, which directly determines the signal transmission quality and diagnostic accuracy.

[0003] However, in clinical applications, existing electrocardiograph leads rely solely on electrode patches to adhere to the body surface for fixation, lacking specialized adaptive fixation devices. When patients turn over, adjust their position, or move, the electrodes are prone to detachment and displacement, and the leads are easily dragged, causing positional changes. Furthermore, most leads are designed with a fixed length, making it impossible to flexibly adjust according to patient body size and treatment scenarios. Leads that are too long are prone to tangling and knotting, resulting in poor contact, while leads that are too short restrict patient movement and are easily displaced due to traction, increasing the risk of signal distortion and diagnostic errors, increasing the workload of medical staff in cable management, and affecting diagnostic efficiency.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a lead wire fixing device for an electrocardiograph, so as to solve the problem of the lack of a dedicated adaptive fixing device for lead wires mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lead wire fixing device for an electrocardiograph, comprising a body, a plurality of fixing seats mounted on the side wall of the body, a plurality of rotating seats rotatably mounted inside the body, a winding assembly fixed on the side wall of the rotating seat, a ratchet fixed on the surface of the rotating seat, a buffer seat rotatably mounted inside the body, a buffer block mounted on the side wall of the buffer seat, a ratchet tooth rotatably mounted on the surface of the buffer seat, a connecting block fixed on the side wall of the ratchet tooth, and an unlocking assembly provided inside the body; The winding assembly includes a rotating shaft fixed to the side wall of the rotating seat, with a limit groove formed on the surface of the rotating shaft, and a rotating sleeve rotatably mounted on the side wall of the fixed seat. A helical rod is fixed inside the rotating sleeve, and a limit block is fixed at the end of the helical rod. A fixing block is installed on the side wall of the rotating sleeve, and a clamping block is elastically limited and slidably attached to the end of the fixing block.

[0007] Preferably, the buffer block is provided with a buffer spring on its side wall, and the buffer block is connected to the inside of the machine body through the buffer spring.

[0008] Preferably, the ratchet teeth mesh with the ratchet wheel, and a spiral spring is provided inside the rotating seat.

[0009] Preferably, the fixed seat is sleeved outside the rotating shaft, the helical rod is located inside the fixed seat, and the helical rod is threadedly connected to the fixed seat.

[0010] Preferably, the limiting block is located within the limiting groove.

[0011] Preferably, the clamping block has an L-shaped design and the ends of the clamping block have an angled design.

[0012] Preferably, the unlocking component includes a plurality of first unlocking blocks that are elastically slidably mounted on the side wall of the body, with a second unlocking block fixed to the end of each of the first unlocking blocks, and a sliding rod that is slidably mounted on the side wall of the body. The side wall of the sliding rod is fixed with a plurality of third unlocking blocks, and a sliding block that is slidably mounted inside the body.

[0013] Preferably, the sidewall of the second unlocking block is designed at an angle, the sidewall of the second unlocking block is in close contact with the sliding block, and the sliding block is slidably connected to the sidewall of the connecting block.

[0014] Preferably, the sidewall of the third unlocking block is designed at an angle, and the position of the third unlocking block corresponds to that of the second unlocking block.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the design of a fixed base, a buffer base, ratchet, ratchet wheel, and a winding assembly, orderly winds up and organizes the leads of an electrocardiograph, avoiding tangled leads and the potential for poor contact caused by tangling. Simultaneously, through the limiting and adjusting action of the ratchet and ratchet wheel, the lead length can be flexibly adjusted according to different scenarios to meet the adaptation needs of patients of different body types. It allows for free stretching and automatic locking of the position after adjustment, preventing length rebound and solving the problem of poor adaptability of traditional fixed-length leads. Furthermore, the buffer base can perform a certain angle of buffer rotation, effectively cushioning the pulling force generated by patient turning over or transport, preventing lead displacement due to traction, and reducing the risk of electrode detachment and signal distortion.

[0016] 2. This invention achieves dual unlocking adaptation through the set unlocking components. Each group of winding components can be unlocked independently, which is convenient for targeted adjustment of the length of a single lead wire. At the same time, all winding components can be unlocked at once by pushing the sliding rod, which is convenient for quickly winding up all leads after diagnosis and treatment, improving the convenience of medical staff operation, reducing the time spent on cable management, and improving the continuity and convenience of clinical monitoring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the rear view structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the fixed base, buffer base, buffer block, buffer spring, first unlocking block, second unlocking block and winding assembly of the present invention; Figure 5 This is a schematic diagram showing the disassembled structure of the fixing seat, buffer seat, buffer block, buffer spring, and winding assembly of the present invention; Figure 6 This is a cross-sectional view of the rotating sleeve of the present invention; Figure 7 This is a schematic diagram of the structure of the buffer seat and the rotating seat of the present invention; Figure 8 This is a schematic diagram of the buffer seat and rotating seat from another perspective of the present invention; Figure 9 This is a schematic diagram of the sliding rod of the present invention.

[0018] In the diagram: 1. Body; 2. Fixed base; 3. Buffer base; 301. Buffer block; 302. Buffer spring; 4. Ratchet; 401. Connecting block; 402. Sliding block; 5. Rotating base; 501. Rotating shaft; 502. Limiting groove; 503. Ratchet; 504. Scroll spring; 6. Rotating sleeve; 601. Helical rod; 602. Limiting block; 603. Fixed block; 604. Clamping block; 7. First unlocking block; 701. Second unlocking block; 8. Sliding rod; 801. Third unlocking block. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structure, features, and effects of the present invention.

[0020] Please see Figures 1-9 The present invention provides a technical solution: a lead wire fixing device for an electrocardiograph, comprising a body 1, a plurality of fixing seats 2 installed on the side wall of the body 1, a plurality of rotating seats 5 rotatably installed inside the body 1 to accommodate the independent installation and winding of multiple sets of lead wires, a winding assembly fixed on the side wall of the rotating seat 5, a ratchet 503 fixed on the surface of the rotating seat 5, a buffer seat 3 rotatably installed inside the body 1, a buffer block 301 installed on the side wall of the buffer seat 3, a ratchet 4 rotatably installed on the surface of the buffer seat 3, a connecting block 401 fixed on the side wall of the ratchet 4, and an unlocking assembly provided inside the body 1; The winding assembly includes a rotating shaft 501 fixed to the side wall of the rotating seat 5, with a limiting groove 502 on the surface of the rotating shaft 501, and a rotating sleeve 6 rotatably mounted on the side wall of the fixed seat 2. A spiral rod 601 is fixed inside the rotating sleeve 6, and a limiting block 602 is fixed at the end of the spiral rod 601. A fixing block 603 is installed on the side wall of the rotating sleeve 6, and a clamping block 604 is elastically limited and slidably attached to the end of the fixing block 603, so as to tightly and orderly wind the lead wire around the outside of the rotating sleeve 6, avoiding loose winding or cable stacking.

[0021] As one embodiment of the present invention, a buffer spring 302 is provided on the side wall of the buffer block 301. The buffer block 301 is connected to the inside of the body 1 through the buffer spring 302 to form an elastic buffer mechanism, which provides external force protection for the lead wire. When the patient turns over, adjusts his position, or is transported in an emergency and a traction force is generated, the buffer block 301 rotates with the lead wire and compresses or stretches the buffer spring 302 at the same time. The elastic deformation of the spring absorbs the impact force and avoids the external force being directly transmitted to the connection between the lead wire and the electrode, thereby reducing the risk of lead wire displacement and cable sheath damage from the source.

[0022] In one embodiment of the present invention, the ratchet 4 meshes with the ratchet 503 to form a reliable one-way limiting mechanism, which restricts the rotation of the rotating seat 5 in one direction, ensuring that the length can be accurately locked after the lead wire is stretched and adjusted, and preventing it from springing back and loosening. The rotating seat 5 is equipped with a spiral spring 504, which provides continuous and stable power support for the winding of the lead wire. The spiral spring 504 can quickly release elastic potential energy, drive the rotating seat 5 to drive the winding assembly to move synchronously, realize the orderly winding of the lead wire, and avoid the cable from being messy and tangled. After the winding is completed, it locks with the ratchet 4 and the ratchet 503 to keep the winding state of the lead wire stable.

[0023] In one embodiment of the present invention, the fixed seat 2 is sleeved outside the rotating shaft 501. The fixed seat 2 provides stable support and limit for the rotating shaft 501, preventing it from deviating or shaking during rotation. The spiral rod 601 is located inside the fixed seat 2 and is threadedly connected to the fixed seat 2. When the rotating shaft 501 drives the spiral rod 601 to rotate, the threaded engagement can convert the rotational motion into axial movement, driving the rotating sleeve 6 to rotate while moving smoothly along the axial direction. Together with the clamping block 604, it realizes the orderly winding and coiling of the lead wire, avoiding the cable from stacking loosely or tangling.

[0024] In one embodiment of the present invention, the limiting block 602 is located in the limiting groove 502 to form a limiting constraint, thereby preventing slippage between the rotating shaft 501 and the screw rod 601. This ensures that when the rotating seat 5 drives the rotating shaft 501 to rotate, it can synchronously drive the screw rod 601 and the rotating sleeve 6 to rotate, while also ensuring coaxiality. The limiting groove 502 prevents eccentric wobbling when the screw rod 601 rotates, ensuring smooth transmission of the screw rod 601 and the fixed seat 2 through threaded connection, allowing the rotating sleeve 6 to move evenly, and making the winding of the guide wire more regular.

[0025] As one embodiment of the present invention, the clamping block 604 is designed in an L-shape. The L-shaped clamping block 604 and the rotating sleeve 6 form a clamping gap, which can clamp the lead wire and prevent the lead wire from slipping and shifting during winding and stretching. The end of the clamping block 604 is designed with an angle to play a guiding role, so that medical staff can quickly slide the lead wire into the gap between the clamping block 604 and the rotating sleeve 6.

[0026] As one embodiment of the present invention, the unlocking component includes multiple first unlocking blocks 7 elastically slidably mounted on the side wall of the body 1, adapting to the independent control requirements of multiple sets of winding components. The end of the first unlocking block 7 is fixed with a second unlocking block 701. It also includes a sliding rod 8 slidably mounted on the side wall of the body 1. Multiple third unlocking blocks 801 are fixed on the side wall of the sliding rod 8. The sliding rod 8 can slide smoothly along the side wall of the body 1. The multiple third unlocking blocks 801 on its side wall correspond one-to-one with each set of winding components. Pushing the sliding rod 8 can drive all the third unlocking blocks 801 to simultaneously squeeze the sliding block 402, and unlock all winding components with one click. This simplifies the operation process of batch winding and overall status adjustment of cables after treatment. It also includes a sliding block 402 slidably mounted in the body 1. The sliding block 402 can slide smoothly in the body 1, bearing the squeezing force of the second unlocking block 701 and the third unlocking block 801, and transmitting the force to the ratchet 4, driving the ratchet 4 to rotate around the axis and disengage from the ratchet 503, thereby realizing the precise transmission of the unlocking action.

[0027] As one embodiment of the present invention, the side wall of the second unlocking block 701 is designed with an angle. The angle design converts the axial force when the first unlocking block 7 is pressed into the lateral force that pushes the sliding block 402, driving the sliding block 402 to move and reducing the unlocking operation force. The side wall of the second unlocking block 701 is in close contact with the sliding block 402, ensuring that there is no gap in the transmission and no delay in unlocking. The sliding block 402 is slidably connected to the side wall of the connecting block 401. The connecting block 401 is fixed to the side wall of the ratchet 4. The sliding connection method is adapted to the angle change of the ratchet 4 when it follows the rotation of the buffer seat 3.

[0028] As one embodiment of the present invention, the side wall of the third unlocking block 801 is designed with an angle. The position of the third unlocking block 801 corresponds to that of the second unlocking block 701. The angled design of the third unlocking block 801 converts the axial force of pushing the sliding rod 8 into the lateral driving force of pushing the sliding block 402. Pushing the sliding rod 8 can easily unlock all winding components without pressing each group, which is suitable for clinical use.

[0029] Working principle: When using this lead wire fixing device for electrocardiographs, first insert the lead wire connector into the corresponding matching connection hole on the side wall of the machine body 1. Then, pass the lead wire around the rotating sleeve 6 and push the lead wire into the gap between the L-shaped clamping block 604 and the rotating sleeve 6. The end of the clamping block 604 adopts an inclined structure design, which effectively guides the lead wire to be quickly embedded, reducing the difficulty of installation. At the same time, the clamping block 604 is installed on the end of the fixing block 603 through an elastic sliding structure. Under the continuous action of the spring tension, the clamping block 604 can tightly fit the surface of the lead wire, preparing for the subsequent winding work. Then, pressing the corresponding first unlocking block 7 causes the first unlocking block 7 to simultaneously drive the second unlocking block 701 to press the sliding block 402. Because the sidewall of the second unlocking block 701 is inclined, the sliding block 402, after being pressed, gradually causes the ratchet 4 to deflect around the axis, disengaging the ratchet 4 from the ratchet wheel 503 and releasing the limiting constraint on the ratchet wheel 503. At this time, the pre-installed spiral spring 504 inside the rotating seat 5 loses its limiting constraint and quickly rewinds, driving the rotating seat 5 to rotate. The rotating seat 5 simultaneously drives the rotating shaft 501 fixed on its surface to rotate. Since the limiting block 602 is located within the limiting groove 502, the rotating shaft 501 synchronously drives the rotating sleeve 6 through the helical rod 601. As the screw rod 601 rotates, it is threadedly connected to the fixed seat 2 fixed on the side wall of the machine body 1. While rotating, the rotating sleeve 6 gradually moves away from the rotating seat 5 along the axial direction of the screw rod 601. During this process, the clamping block 604 always keeps close to the guide wire, forcing the guide wire to be wound in an orderly manner around the outside of the rotating sleeve 6, completing the orderly winding of the guide wire. After winding is completed, the pressure on the first unlocking block 7 is released, and the elastically slidably installed first unlocking block 7 automatically resets, releasing the pressure on the ratchet 4. The ratchet 4 resets under the action of its own elastic structure and re-engages with the ratchet 503, realizing the reliable locking of the ratchet 503, preventing the guide wire from loosening on its own, and ensuring the stability of the winding state. When the lead wire is needed, it can be stretched directly and flexibly according to different scenarios. In the initial stretching stage, the lead wire first pulls the buffer seat 3, causing the buffer block 301 to rotate and compress the buffer spring 302. When the buffer seat 3 rotates to the limit position, the continued stretching of the lead wire will drive the rotating sleeve 6 to rotate in the opposite direction, thereby releasing the lead wire. The ratchet 503 and ratchet 4 have the characteristic of unidirectional rotation, which allows the lead wire to be stretched smoothly. After being stretched to the required length, it can automatically lock the position to avoid length rebound. After the lead wire is released, the buffer spring 302 is quickly released to drive the buffer seat 3 to reverse and reset, returning to the initial state. When the patient turns over or is transported by bumps, generating an instantaneous pulling force, the lead wire will pull the buffer seat 3. The rotation of the buffer block 301 and the elastic extension and contraction of the buffer spring 302 will offset the pulling impact force, prevent the lead wire from being pulled and displaced, reduce the risk of electrode dislodgement and signal distortion, and ensure the continuity and accuracy of ECG monitoring. After the monitoring is completed, push the sliding rod 8 directly to make it move multiple third unlocking blocks 801 synchronously. The inclined sidewall of the third unlocking block 801 contacts and squeezes the first unlocking block 7, driving the first unlocking block 7 and the second unlocking block 701 to push the sliding block 402 synchronously, thereby driving the ratchet 4 to rotate and releasing the meshing lock between the ratchet 4 and the ratchet wheel 503. After the lock is released, the spiral spring 504 inside the rotating seat 5 releases elastic potential energy, driving each group of winding components to operate synchronously, realizing the orderly and synchronous recycling of multiple guide wires without the need for group-by-group operation, thus improving the efficiency of postoperative care.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A lead wire fixing device for an electrocardiograph, comprising a body (1), characterized in that: The machine body (1) has multiple fixed seats (2) installed on its side wall. Multiple rotating seats (5) are rotatably installed inside the machine body (1). A winding assembly is fixed on the side wall of the rotating seat (5). A ratchet (503) is fixed on the surface of the rotating seat (5). A buffer seat (3) is rotatably installed inside the machine body (1). A buffer block (301) is installed on the side wall of the buffer seat (3). A ratchet tooth (4) is rotatably installed on the surface of the buffer seat (3). A connecting block (401) is fixed on the side wall of the ratchet tooth (4). An unlocking assembly is provided inside the machine body (1). The winding assembly includes a rotating shaft (501) fixed to the side wall of the rotating seat (5), a limiting groove (502) is provided on the surface of the rotating shaft (501), and a rotating sleeve (6) rotatably mounted on the side wall of the fixed seat (2). A spiral rod (601) is fixed inside the rotating sleeve (6), a limiting block (602) is fixed at the end of the spiral rod (601), a fixing block (603) is installed on the side wall of the rotating sleeve (6), and a clamping block (604) is elastically limited and slidably mounted at the end of the fixing block (603).

2. The lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The buffer block (301) is provided with a buffer spring (302) on its side wall, and the buffer block (301) is connected to the inside of the body (1) through the buffer spring (302).

3. The lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The ratchet (4) meshes with the ratchet (503), and a spiral spring (504) is provided inside the rotating seat (5).

4. The lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The fixed seat (2) is sleeved outside the rotating shaft (501), and the screw rod (601) is located inside the fixed seat (2). The screw rod (601) is threadedly connected to the fixed seat (2).

5. A lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The limiting block (602) is located inside the limiting groove (502).

6. A lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The clamping block (604) is designed in an L-shape, and the ends of the clamping block (604) are designed at an angle.

7. A lead wire fixing device for an electrocardiograph according to claim 1, characterized in that: The unlocking assembly includes a plurality of first unlocking blocks (7) that are elastically slidably mounted on the side wall of the body (1), with a second unlocking block (701) fixed at the end of the first unlocking block (7), and also includes a sliding rod (8) that is slidably mounted on the side wall of the body (1), with a plurality of third unlocking blocks (801) fixed on the side wall of the sliding rod (8), and also includes a sliding block (402) that is slidably mounted inside the body (1).

8. A lead wire fixing device for an electrocardiograph according to claim 7, characterized in that: The second unlocking block (701) has an angled sidewall and is in close contact with the sliding block (402). The sliding block (402) is slidably connected to the sidewall of the connecting block (401).

9. A lead wire fixing device for an electrocardiograph according to claim 7, characterized in that: The third unlocking block (801) has an angled sidewall and its position corresponds to that of the second unlocking block (701).

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