Integrated anti-interference connecting wire group lead box of electrocardiograph

Abstract

The invention discloses an electrocardiograph integrated anti-interference connecting wire set lead box, and relates to the technical field of medical equipment, the electrocardiograph integrated anti-interference connecting wire set lead box comprises a shell, and the shell is provided with a shielding box capable of reducing interference of a magnetic field on signals and a buckle assembly capable of limiting plugs of different sizes; through the design of multiple layers of shielding signal lines (comprising an insulating layer, a metal woven mesh shielding layer and a diamagnetic alloy sheath) and a separated magnetic field shielding box, the lead box can effectively reduce the interference of a high-frequency magnetic field in a complex electromagnetic environment. Therefore, high-fidelity transmission of the electrocardiosignal is ensured, the problems of signal distortion, baseline drift and noise superposition are reduced, the electrocardiosignal still keeps high fidelity in complex environments such as an MRI room and the vicinity of high-voltage equipment, and the baseline drift and noise superposition problems are reduced by more than 90%.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, and in particular to an integrated anti-interference connection line box for an electrocardiograph. Background Technology

[0002] As an indispensable device in medical diagnosis, the core function of an electrocardiograph (ECG) is to collect human electrocardiogram signals through lead wires and convert them into visual graphics for medical personnel to analyze. However, traditional ECG connection cables face two major challenges in actual use: environmental interference and equipment compatibility. These problems seriously affect the accuracy of test data and the practicality of the equipment.

[0003] Traditional electrocardiograph (ECG) machine cables are often wrapped with ordinary shielding materials (such as single-layer metal braided mesh). In complex electromagnetic environments (such as MRI rooms or near high-voltage equipment), external magnetic fields can easily penetrate the shielding layer, leading to ECG signal distortion. In addition, the lack of physical isolation between lines results in frequent cross-interference, especially in areas with dense magnetic fields, where signal baseline drift and noise superposition are prominent, directly affecting diagnostic results. Furthermore, there are many ECG machine brands on the market, and the plug specifications of each manufacturer are not standardized, making the connecting cables incompatible. When the equipment's built-in wiring is damaged, it is necessary to customize special cables or replace the entire machine, which is costly and time-consuming. Moreover, older models are difficult to adapt to new equipment due to outdated interfaces, resulting in wasted resources. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of environmental interference and equipment compatibility in the actual use of traditional electrocardiograph (ECG) machine connection cables, and to propose an integrated anti-interference connection cable group lead box for ECG machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An integrated anti-interference connection cable lead box for an electrocardiograph includes a housing, on which a shielding box capable of reducing magnetic field interference to the signal is mounted, and a snap-fit ​​assembly capable of limiting plugs of different sizes. The shielding box includes a housing that is fixedly installed inside the outer shell. The signal line is connected to the housing through a connector. A number of sockets are provided on one side of the housing, and the sockets are equipped with interface components that can adapt to different plug types.

[0006] As a further description of the above technical solution: The signal line includes a wire core located at the center, an insulation layer located on the outside of the wire core, a metal braided mesh shielding layer located on the outside of the insulation layer, and an antimagnetic alloy sheath located on the outside of the metal braided mesh shielding layer.

[0007] As a further description of the above technical solution: The box body has several partitions fixedly installed inside, and the box body is made of permalloy material, while the outer shell is made of antimagnetic material.

[0008] As a further description of the above technical solution: The interface component includes a slot opened inside the socket, a baffle fixedly installed in the slot, a plurality of pins slidably connected to the baffle, and a spring fixedly connected to one end of the pins extending to the outside of the baffle and the slot.

[0009] As a further description of the above technical solution: The buckle assembly includes two circular plates fixedly mounted on the socket, a rotating plate slidably mounted on one of the circular plates, a ring located on the outside of the two circular plates, and the rotating plate fixedly mounted on the ring.

[0010] As a further description of the above technical solution: Several square frames are fixedly installed on one side of the rotating plate, and several grooves are opened on one side of one of the circular plates. The movable plate is slidably installed on the grooves, and a cylinder is installed on one side of each movable plate.

[0011] As a further description of the above technical solution: The square frame is inclined, and one end of the cylinder is located inside the square frame. The middle part of the circular plate and the rotating plate are respectively provided with circular grooves of the same size.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: Through the design of multi-layered shielded signal lines (including insulation layers, metal braided mesh shielding layers, and antimagnetic alloy sheaths) and a separate magnetic field shielding box, this lead box effectively reduces interference from high-frequency magnetic fields in complex electromagnetic environments. This ensures high-fidelity transmission of ECG signals, reduces signal distortion, baseline drift, and noise superposition, allowing ECG signals to maintain high fidelity even in complex environments such as MRI rooms and near high-voltage equipment, reducing baseline drift and noise superposition by more than 90%. With flexible pins and a modular signal line design, the lead box is compatible with multiple brands and models of ECG machines. The flexible pins inside the universal connector can fit the shape of different plugs, while the built-in signal conversion circuit can automatically identify and match the electrical parameters of different devices. This achieves the "plug and play" function, reduces the types and number of adapters, and lowers the economic burden and management costs for users; the snap-fit ​​assembly, through its unique design, can firmly limit plugs of different sizes in the socket. When the plug is inserted, the rotating ring drives the rotating plate and the square frame to rotate, pushing the cylinder and the moving plate, so that the opening between the moving plates gradually decreases, thereby blocking the plug from the back and preventing it from loosening or falling off. Attached Figure Description

[0013] Figure 1 An overall schematic diagram provided according to an embodiment of the present invention is shown; Figure 2 The present invention provides an embodiment of the invention. Figure 1 Another perspective view; Figure 3 This diagram shows the effect of the outer casing being opened according to an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a signal line provided according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a socket provided according to an embodiment of the present invention is shown; Figure 6 A cross-sectional view of a socket provided according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of a snap-fit ​​assembly provided according to an embodiment of the present invention is shown; Figure 8 The diagram shows the effect of separating the two circular plates according to an embodiment of the present invention; Figure 9 The present invention provides an embodiment of the invention. Figure 8 Another perspective view.

[0014] Legend: 10. Outer casing; 20. Shielding box; 21. Box body; 22. Signal cable; 221. Wire core; 222. Insulation layer; 223. Metal braided shielding layer; 224. Antimagnetic alloy sheath; 23. Connector; 24. Socket; 25. Interface assembly; 251. Baffle; 252. Pin; 253. Spring; 30. Snap-fit ​​assembly; 31. Round plate; 32. Rotating plate; 33. Ring; 34. Square frame; 35. Slide groove; 36. Moving plate; 37. Cylinder. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1 - Figure 9As shown, the present invention provides an integrated anti-interference connection line box for an electrocardiograph, including a shell 10. The shell 10 adopts a snap-on or magnetic opening and closing structure, allowing users to quickly replace the internal signal line 22 or clean the box 21. The shell 10 is equipped with a shielding box 20 that can reduce magnetic field interference to the signal, and a snap-on assembly 30 that can limit plugs of different sizes. The shielding box 20 includes a box body 21 fixedly installed inside the outer casing 10. The signal line 22 is connected to the box body 21 through a connector 23. If a signal line 22 is damaged, the user only needs to unplug the faulty connector 23 and insert a new line without interrupting the overall testing process. At the same time, the signal line 22 uses a standardized connector 23, which enables quick replacement through plug-in connection, reducing the dependence on special accessories. Several sockets 24 are provided on one side of the box body 21. The sockets 24 are equipped with interface components 25 that can adapt to different plug models.

[0017] like Figure 4 As shown, the signal line 22 includes a wire core 221 disposed in the center, an insulation layer 222 disposed on the outside of the wire core 221, a metal braided mesh shielding layer 223 disposed on the outside of the insulation layer 222, and an antimagnetic alloy sheath 224 disposed on the outside of the metal braided mesh shielding layer 223, forming a composite electromagnetic shield through these materials.

[0018] In more detail, several partitions are fixedly installed inside the housing 21 to separate the circuits and avoid crosstalk inside the housing 21. This allows each signal line 22 to be independently distributed within the housing 21, avoiding crosstalk caused by capacitive and inductive coupling. The housing 21 is made of permalloy, and the high permeability of permalloy can guide the external magnetic field to the surface of the housing 21 and reduce the magnetic coupling of the internal circuits through physical isolation, thus achieving magnetic field "shunting" and "isolation". The outer shell 10 is made of antimagnetic material, such as copper or aluminum alloy. The multi-layered copper / aluminum wrapping structure attenuates the energy of high-frequency electromagnetic waves layer by layer through skin effect and reflection loss. When the electrocardiogram (ECG) signal is transmitted from the human body through the signal line 22, the multi-layer shielding structure first filters out external high-frequency electromagnetic interference. After the signal enters the housing 21, the high-permeability magnetic material of the housing 21 further absorbs and isolates the residual magnetic field. At the same time, the physical isolation design prevents cross-interference between lines. Finally, the signal is transmitted to the ECG machine through the universal socket 24, ensuring high-fidelity output. This allows the ECG signal to maintain high fidelity even in complex environments such as MRI rooms and near high-voltage equipment, reducing baseline drift and noise superposition problems by more than 90%.

[0019] like Figure 5 - Figure 6As shown, the interface component 25 includes a slot opened inside the socket 24. A baffle 251 is fixedly installed in the slot. Several pins 252 are slidably connected to the baffle 251. A spring 253 is fixedly connected between the end of the pin 252 extending to the outside of the baffle 251 and the slot. The reaction force of the spring 253 enables the pin 252 to return to its original position. When the plug is inserted into the socket 24, the edge of the plug will press against several pins 252, and the socket on the plug will be adapted to the pins 252 that are not pressed. The elastic pins 252 of the universal socket 24 can fit the shape of different plugs. At the same time, the socket 24 is also equipped with an integrated signal conversion circuit, which can automatically identify and match the electrical parameters of different devices. Meanwhile, the built-in impedance matching circuit automatically adjusts the signal transmission parameters to ensure electrical compatibility with devices of various brands. When connecting to ECG machines of different brands, the universal connector 24 automatically adapts to the plug specifications through the flexible pin 252 and the conversion circuit, achieving "plug and play"; if a signal line 22 is damaged, the user only needs to unplug the connector 23 on the faulty signal line 22 and insert a new line, without interrupting the overall testing process.

[0020] like Figure 7 - Figure 9 As shown, the buckle assembly 30 includes two circular plates 31 fixedly installed on the socket 24, a rotating plate 32 slidably installed on one of the circular plates 31, and a ring 33 located on the outside of the two circular plates 31. The rotating plate 32 is fixedly installed on the ring 33. The rotating plate 32 can be started to rotate by rotating the ring 33.

[0021] In more detail, several square frames 34 are fixedly installed on one side of the rotating plate 32. When the rotating plate 32 rotates, it will also drive the square frames 34 to rotate. Several grooves 35 are opened on one side of one of the circular plates 31. The movable plate 36 is slidably installed on the grooves 35. A cylinder 37 is installed on one side of each movable plate 36.

[0022] In more detail, the square frame 34 is inclined, and one end of the cylinder 37 is located inside the square frame 34. The middle part of the circular plate 31 and the rotating plate 32 are respectively provided with circular grooves of the same size. When the plug is inserted into the socket 24, rotating the ring 33 will drive the rotating plate 32 to start rotating. When the rotating plate 32 rotates, it will also drive several square frames 34 to rotate. The rotating square frames 34 push the cylinder 37, so that the cylinder 37 drives the moving plate 36 to move in the slide groove 35, so that the opening between several moving plates 36 gradually increases. Then the plug is inserted into the socket 24. Then the ring 33 is rotated again, so that the opening between several moving plates 36 gradually decreases, thereby limiting the plug and blocking the inserted plug to prevent the plug from becoming loose, thus adapting to plugs of different shapes and sizes.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated anti-interference connection lead box for an electrocardiograph, comprising a shell (10), characterized in that, Also includes: The outer shell (10) is equipped with a shielding box (20) that can reduce the interference of magnetic fields on signals, and a snap-fit ​​assembly (30) that can limit plugs of different sizes. The shielding box (20) includes a box body (21) fixedly installed inside the outer shell (10). The signal line (22) is connected to the box body (21) through a connector (23). A number of sockets (24) are provided on one side of the box body (21). The sockets (24) are provided with interface components (25) that can adapt to different plug types.

2. The integrated anti-interference connection cable group lead box for an electrocardiograph according to claim 1, characterized in that, The signal line (22) includes a wire core (221) disposed in the center, an insulation layer (222) disposed on the outside of the wire core (221), a metal braided mesh shielding layer (223) disposed on the outside of the insulation layer (222), and an antimagnetic alloy sheath (224) disposed on the outside of the metal braided mesh shielding layer (223).

3. The integrated anti-interference connection cable group lead box for an electrocardiograph according to claim 1, characterized in that, The box (21) is fixedly installed with several partitions inside, and the box (21) is made of permalloy material, while the outer shell (10) is made of antimagnetic material.

4. The integrated anti-interference connection cable group lead box for an electrocardiograph according to claim 1, characterized in that, The interface component (25) includes a slot opened inside the socket (24), a baffle (251) is fixedly installed in the slot, and a plurality of pins (252) are slidably connected on the baffle (251). A spring (253) is fixedly connected between one end of the pins (252) extending to the outside of the baffle (251) and the slot.

5. The integrated anti-interference connection lead box for an electrocardiograph according to claim 1, characterized in that, The buckle assembly (30) includes two circular plates (31) fixedly mounted on the socket (24), a rotating plate (32) slidably mounted on one of the circular plates (31), and a ring (33) located on the outside of the two circular plates (31), with the rotating plate (32) fixedly mounted on the ring (33).

6. The integrated anti-interference connection cable group lead box for an electrocardiograph according to claim 5, characterized in that, A number of square frames (34) are fixedly installed on one side of the rotating plate (32), and a number of sliding grooves (35) are opened on one side of one of the circular plates (31). The movable plate (36) is slidably installed on the sliding groove (35), and a cylinder (37) is installed on one side of each movable plate (36).

7. The integrated anti-interference connection line group lead box for an electrocardiograph according to claim 6, characterized in that, The square frame (34) is inclined, and one end of the cylinder (37) is located inside the square frame (34). The middle part of the circular plate (31) and the rotating plate (32) are respectively provided with circular grooves of the same size.

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