Endoscope connection line

Abstract

The utility model relates to an endoscope connecting line, including inside signal line group, first aluminium foil layer, braid layer and outer covering layer that set gradually from inside to outside, the braid layer is the netted structure that weaves from multiple copper clad aluminium composite metal wires, the composite metal wire includes copper layer and aluminium layer, the copper layer evenly cladded in the outer peripheral surface of aluminium layer, the composite metal wire cladded in the outer peripheral surface of first aluminium foil layer, the surface coverage of composite metal wire in braid layer is 80% or above, the utility model discloses a copper clad aluminium composite metal wire directly participates in weaving and forms the netted shield body. Copper clad aluminium composite metal wire price is far lower than copper material, by using a large number of aluminium layer to replace pure copper layer in the braid layer, while retaining copper core guarantees key electrical performance, the main raw material cost of braid layer is reduced greatly. And its overall weight is significantly lower than the pure copper braided cable of same specification, same shielding effectiveness.

Description

Technical Field

[0001] This utility model relates to the field of wires and cables, and more particularly to an endoscope connection cable. Background Technology

[0002] Endoscopes, as important medical diagnostic equipment, are widely used in the examination and diagnosis of internal organs and tissues, as well as in minimally invasive surgery. The endoscope connector, a key component of the endoscope system, is responsible for accurately transmitting image and control signals acquired by the endoscope to the back-end processing equipment. Its performance directly affects the overall working effect and diagnostic accuracy of the endoscope system.

[0003] In existing endoscopic connectors, common shielding structures often employ a single metal wire braid or an alloy metal braid. Single metal wire braids offer poor shielding effectiveness, failing to meet the high-performance requirements of endoscopic connectors. Alloy metal braids provide excellent shielding, but alloy wires are typically expensive, directly contributing to the high overall cost of the connector. Furthermore, the higher density of alloy wires increases the connector's weight. During medical procedures, where healthcare professionals frequently move and manipulate the endoscope, heavier connectors increase the workload, impacting operational flexibility and accuracy. Utility Model Content

[0004] In view of this, the present invention provides an endoscope connection cable that is low in cost, has good shielding performance, and is lighter in weight.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] It includes an internal signal line group, a first aluminum foil layer, a braided layer, and an outer sheath layer arranged sequentially from the inside out; the braided layer is a mesh structure woven from multiple strands of copper-clad aluminum composite metal wires, the composite metal wires include copper layers and aluminum layers, the copper layer uniformly covers the outer peripheral surface of the aluminum layer, and the composite metal wires cover the outer peripheral surface of the first aluminum foil layer; the surface coverage of the composite metal wires in the braided layer is more than 80%.

[0007] In the above technical solution, the braided layer of the endoscope connector adopts a copper-clad aluminum composite wire structure with an aluminum core and a uniformly coated copper layer. The copper-clad aluminum composite wire directly participates in the braiding to form a mesh shield. The price of copper-clad aluminum composite is much lower than that of copper. By using a large amount of copper-clad aluminum composite in the braided layer to replace the pure copper layer, while retaining the copper core to ensure key electrical performance, the cost of the main raw materials for the braided layer is significantly reduced. Compared to traditional solutions using pure copper layers or high-copper-content alloy wires, the cost advantage is obvious.

[0008] Secondly, copper-clad aluminum composites have a much lower density than copper, with the aluminum layer comprising the majority of the outer volume and weight. Cables braided using these copper-clad aluminum composite wires are significantly lighter than pure copper braided cables of the same specifications and shielding performance. This is crucial for medical equipment such as endoscopes, which require prolonged handheld operation or frequent movement, effectively reducing operator fatigue and improving operational flexibility and comfort.

[0009] Optionally, in one possible implementation, the internal signal line group includes a first signal line, a second signal line, a power line, and filler, wherein the first signal line is used to transmit a first type of signal, the second signal line is used to transmit a second type of signal, and the power line is used to connect to a power source.

[0010] In the above technical solution, the internal signal line group uses the first and second signal lines to transmit different types of signals respectively. This classified transmission method can effectively avoid mutual interference between different types of signals. Secondly, a dedicated power line is provided for connecting the power supply, realizing the separation of power transmission and signal transmission. This can effectively prevent the influence of power interference on signal transmission and avoid signal distortion or interruption caused by power fluctuations or electromagnetic leakage.

[0011] Optionally, in one possible implementation, the first signal line includes a plurality of first core wires, a ground wire, and a shielding layer that wraps around the plurality of first core wires and the ground wire.

[0012] In the above technical solution, the multi-core structure significantly increases the number of signal transmission channels. Compared to a single-core wire, it can simultaneously carry more Type I signals, meeting the needs of endoscopes for simultaneous transmission of multiple signals in complex inspection scenarios. The ground wire and the shielding layer encasing multiple Type I wires and the ground wire form a dual anti-interference protection system.

[0013] Optionally, in one possible implementation, the shielding layer includes a second aluminum foil layer and a polyester film layer disposed sequentially from the inside out.

[0014] In the above technical solution, the second aluminum foil layer has good conductivity, which can effectively reflect and absorb external electromagnetic waves. Although the polyester film layer itself has weak conductivity, it can work together with the second aluminum foil layer to further block residual electromagnetic interference and prevent external moisture, dust, etc. from entering the first signal line, thus avoiding signal attenuation caused by environmental factors.

[0015] Optionally, in one possible implementation, the first signal line is multiple, and the multiple first signal lines are twisted together to form an integral structure.

[0016] In the above technical solution, the twisted structure makes the distance and relative position between each signal line and the adjacent signal line relatively stable during the twisting process, and makes the coupling path between adjacent signal lines complex and tortuous, increasing the difficulty of signal coupling, and ensuring that each first signal line can independently transmit its own signal.

[0017] Alternatively, in one possible implementation, the second signal line includes a plurality of second core wires, and the plurality of second core wires are twisted together to form an integral structure.

[0018] In the above technical solution, the twisted-pair structure arranges adjacent second core wires closely and regularly in space, which can reduce the impact of external electromagnetic interference on the second type of signal. At the same time, it allows each second core wire to transmit its own signal more independently, ensuring that various types of second type signals in the endoscope do not interfere with each other and are transmitted stably.

[0019] Alternatively, in one possible implementation, the power line includes multiple third core wires.

[0020] In the above technical solution, the power cord includes multiple third core wires, which means that a multi-redundant power supply system can be built for the endoscope equipment. Under normal operating conditions, the multiple third core wires can jointly power the equipment, share the current load, reduce the heat and loss of each core wire, and improve power supply efficiency.

[0021] Alternatively, in one possible implementation, the third core wire includes a center conductor and an insulation layer arranged sequentially from the inside out.

[0022] In the above technical solution, the central conductor serves as the core channel for current transmission. The insulation layer tightly wraps around the outside of the central conductor, playing a crucial role in isolation. This prevents the central conductor from directly contacting the external environment or other conductors and also shields it from the influence of external electromagnetic interference on the current transmission within the central conductor.

[0023] Optionally, in one possible implementation, the third core wire includes a center conductor, an insulation layer, an outer conductor, and an outer sheath arranged sequentially from the inside to the outside, with the center conductor and the outer conductor being coaxially arranged.

[0024] In the above technical solution, the coaxially arranged center conductor and outer conductor form a relatively independent transmission channel, which can effectively suppress crosstalk between different signals within the system. In an endoscope system, multiple signals may be transmitted simultaneously, such as image signals, audio signals, and control signals. The coaxial structure ensures that each signal is transmitted independently in its own channel without interference, thus improving the quality and reliability of signal transmission.

[0025] Optionally, in one possible implementation, the filler is cotton yarn or nylon filament; the outer layer is a soft plastic layer made of PVC, TPE, TPU, or any biodegradable material.

[0026] In the above technical solution, cotton yarn or nylon filaments can tightly conform to the shape of the core wire, filling the gaps around the core wire, while also possessing a certain degree of electromagnetic shielding performance. The outer sheath can protect the internal core wire and filler from damage by chemicals and contaminants, ensuring the stable performance and lifespan of the power cord. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of Example 1.

[0029] Figure 2 In Example 1, with Figure 1 A schematic diagram of a structure with a different third core wire.

[0030] Figure 3 This is a schematic diagram of the structure of Example 2.

[0031] Figure 4 This is a schematic diagram of the structure of Example 3.

[0032] Reference numerals: 1-First aluminum foil layer; 2-Braided layer; 3-Outer sheath layer; 4-First signal line; 41-First core wire; 42-Ground wire; 43-Shielding layer; 5-Second signal line; 51-Second core wire; 6-Third core wire; 61-Center conductor; 62-Insulation layer; 63-Outer conductor; 64-Outer sheath; 7-Filling material. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. Example 1

[0035] Please refer to Figure 1 and Figure 2 This embodiment provides an endoscope connection cable, including an internal signal line group, a first aluminum foil layer 1, a braided layer 2, and an outer sheath layer 3 arranged sequentially from the inside to the outside; the braided layer 2 is a mesh structure woven from multiple strands of copper-clad aluminum composite metal wires, the composite metal wires include copper layers and aluminum layers, the copper layer is uniformly covered on the outer peripheral surface of the aluminum layer, and the composite metal wires are covered on the outer peripheral surface of the first aluminum foil layer 1; the surface coverage of the composite metal wires on the braided layer 2 is more than 80%.

[0036] In this embodiment, the braided layer 2 of the endoscope connector adopts a composite metal wire structure with an aluminum core and a uniformly coated copper layer. The copper-clad aluminum composite metal wire directly participates in the braiding to form a mesh shield. The price of copper-clad aluminum composite metal wire is much lower than that of copper. By using a large amount of copper-clad aluminum composite metal wire in braided layer 2 to replace the pure copper layer, while retaining the copper core to ensure key electrical performance, the main raw material cost of braided layer 2 is significantly reduced. Compared with traditional solutions using pure copper layers or high-copper-content alloy wires, the cost advantage is obvious.

[0037] Secondly, aluminum has a much lower density than copper, and the aluminum layer occupies the majority of the volume and weight of the outer layer in the composite wire. Cables braided using this aluminum-clad copper composite wire are significantly lighter than pure copper braided cables of the same specifications and shielding performance. This is crucial for medical equipment such as endoscopes that require prolonged handheld operation or frequent movement, effectively reducing operator fatigue and improving operational flexibility and comfort.

[0038] Furthermore, the mesh structure formed by the multi-strand composite metal wires not only provides shielding but also enhances the overall strength and flexibility of the connecting wires to a certain extent. This structure can better withstand the bending, stretching, and other external forces during the use of the endoscope, reducing damage to the connecting wires caused by external forces, extending the service life of the connecting wires, and lowering usage costs.

[0039] It should be noted that the composite metal wire in this embodiment can also be a Bell conductor.

[0040] In this embodiment, the internal signal line group includes a first signal line 4, a second signal line 5, a power line, and filler 7. The first signal line 4 is used to transmit a first type of signal, the second signal line 5 is used to transmit a second type of signal, and the power line is used to connect to a power source. In medical endoscopes, the first type of signal includes, but is not limited to, high-definition image signals, which require extremely high stability and accuracy in transmission; the second type of signal includes, but is not limited to, device control signals.

[0041] The internal signal line group uses the first signal line 4 and the second signal line 5 to transmit different types of signals. This classified transmission method effectively avoids mutual interference between different types of signals. Secondly, a dedicated power line is provided for power connection, achieving separation of power transmission and signal transmission. This effectively prevents power interference from affecting signal transmission and avoids signal distortion or interruption caused by power fluctuations or electromagnetic leakage.

[0042] The filler 7 not only fills the gaps between the internal signal wire groups, making the entire wire group structure more compact and stable, and reducing signal interference caused by cable shaking or bending, but also provides a certain degree of buffering and protection, preventing signal lines from being damaged by external pressure or collision, further ensuring stable signal transmission and extending the service life of the internal signal wire group.

[0043] In this embodiment, the first signal line 4 includes multiple first core wires 41, a ground wire 42, and a shielding layer 43 that wraps around the multiple first core wires 41 and the ground wire 42. The shielding layer 43 includes a second aluminum foil layer and a polyester film layer arranged sequentially from the inside to the outside.

[0044] The multi-core structure significantly increases the number of signal transmission channels. Compared to a single-core wire, it can simultaneously carry more Type I signals, meeting the needs of endoscopes for simultaneous transmission of multiple signals in complex testing scenarios. For example, in high-definition endoscopic imaging, in addition to image signals, it is also necessary to transmit image-related auxiliary information. Multiple Type I wires 41 can be responsible for transmitting different information, ensuring that all signals arrive at the receiving end stably and quickly. The ground wire 42 and the shielding layer 43 surrounding the multiple Type I wires 41 and the ground wire 42 form a dual anti-interference protection system. The ground wire 42 provides a stable reference potential for the signal, effectively reducing signal potential fluctuations caused by external electromagnetic interference and ensuring accurate signal transmission.

[0045] The second aluminum foil layer has excellent conductivity, effectively reflecting and absorbing external electromagnetic waves. While the polyester film layer itself has relatively weak conductivity, it works in conjunction with the second aluminum foil layer to further block residual electromagnetic interference and prevent external moisture and dust from penetrating the first signal line 4, avoiding signal attenuation due to environmental factors. This dual shielding mechanism of the second aluminum foil layer and the polyester film layer resists external interference from multiple levels, providing a reliable guarantee for the stable transmission of the first type of signal and ensuring the accuracy of the images and data acquired by the endoscope.

[0046] In this embodiment, there are multiple first signal lines 4, and these multiple first signal lines 4 are twisted together to form an integral structure. Specifically, in this embodiment, there are two first signal lines 4, which are twisted together.

[0047] The twisted structure ensures that the distance and relative position between each signal line and its adjacent signal lines remain relatively stable during the twisting process, and makes the coupling path between adjacent signal lines complex and tortuous, increasing the difficulty of signal coupling and ensuring that each first signal line 4 can independently transmit its own signal.

[0048] In this embodiment, the second signal line 5 includes multiple second core wires 51, which are twisted together to form a single structure. In this embodiment, the second core wires 51 are two wires twisted together. The twisted structure arranges adjacent second core wires 51 closely and regularly in space, which can reduce the influence of external electromagnetic interference on the second type of signal. Simultaneously, it allows each second core wire 51 to transmit its own signal more independently, ensuring that various types of second type signals in the endoscope do not interfere with each other and are transmitted stably.

[0049] In this embodiment, the power cord includes multiple third core wires 6. The power cord in this embodiment is configured with two or four wires. The inclusion of multiple third core wires 6 means that a multi-redundant power supply system can be constructed for the endoscopic device. Under normal operating conditions, the multiple third core wires 6 can jointly power the device, sharing the current load, reducing heat generation and losses in each core wire, and improving power supply efficiency.

[0050] The third core wire 6 in this embodiment includes a center conductor 61 and an insulation layer 62 arranged sequentially from the inside to the outside. The center conductor 61 serves as the core channel for current transmission, and the insulation layer 62 tightly wraps around the outside of the center conductor 61, playing a crucial role in isolation. It can prevent the center conductor 61 from directly contacting the external environment or other conductors, and can also shield the influence of external electromagnetic interference on the current transmission within the center conductor 61.

[0051] Furthermore, it should be noted that the structure of the first core wire 41 and the second core wire 51 in this embodiment is the same as that of the third core wire 6, that is, both include a central conductor 61 and an insulating layer 62 covering the outer periphery of the central conductor 61.

[0052] In this embodiment, the filler 7 is cotton yarn or nylon filament; the outer layer 3 is a soft plastic layer made of PVC, TPE, TPU or any biodegradable material.

[0053] Both cotton yarn and nylon filaments can tightly conform to the shape of the core wire, filling the gaps around it, and also possess a certain degree of electromagnetic shielding. The outer sheath 3 protects the internal core wire and filler 7 from damage by chemicals and contaminants, ensuring the power cord's stable performance and lifespan.

[0054] Specifically, PVC (polyvinyl chloride) has excellent chemical resistance, resisting the erosion of various chemicals such as acids, alkalis, and salts. TPE (thermoplastic elastomer) is an environmentally friendly material, free of halogens, heavy metals, and other harmful substances, meeting environmental protection requirements. TPE has excellent softness and elasticity; the power cord made of TPE in outer layer 3 is soft to the touch, easy to bend and fold, and convenient for medical personnel to use during operation. TPU (thermoplastic polyurethane elastomer) has extremely high abrasion resistance and excellent tear resistance, capable of withstanding significant tensile forces without easily tearing. Different materials for outer layer 3 can be flexibly selected according to the needs of the actual application scenario. Example 2

[0055] Please refer to Figure 3 Unlike Embodiment 1, the third core wire 6 in this embodiment includes a center conductor 61, an insulation layer 62, an outer conductor 63 and an outer sheath 64 arranged sequentially from the inside to the outside, with the center conductor 61 and the outer conductor 63 arranged coaxially.

[0056] The center conductor 61, serving as the core channel for current or signal transmission, is made of a highly conductive metal material, such as pure copper or silver-plated copper. The outer conductor 63 is typically in the form of a metal braided mesh or metal foil, providing excellent electromagnetic shielding performance. It effectively blocks the intrusion of external electromagnetic waves, preventing external electromagnetic interference from interfering with the signals transmitted in the center conductor 61.

[0057] The coaxial arrangement between the center conductor 61 and the outer conductor 63 forms a relatively independent transmission channel, effectively suppressing crosstalk between different signals within the system. In an endoscope system, multiple signals, such as image signals, audio signals, and control signals, may be transmitted simultaneously. The coaxial structure ensures that each signal is transmitted independently in its own channel, without interference, thus improving the quality and reliability of signal transmission. Example 3

[0058] Please refer to Figure 4 Unlike Embodiments 1 and 2, the third core wire 6 in this embodiment has two structures. The first structure includes a center conductor 61, an insulation layer 62, an outer conductor 63, and an outer sheath 64 arranged sequentially from the inside to the outside, with the center conductor 61 and the outer conductor 63 coaxially arranged. The second structure only includes the center conductor 61 and the insulation layer 62 arranged sequentially from the inside to the outside. That is, the third core wire in this embodiment simultaneously includes the structures of the third core wire 6 in Embodiments 1 and 2.

[0059] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An endoscope connector cable, characterized in that, It includes an internal signal line group, a first aluminum foil layer, a braided layer, and an outer sheath layer arranged sequentially from the inside out; the braided layer is a mesh structure woven from multiple strands of copper-clad aluminum composite metal wires, the composite metal wires include copper layers and aluminum layers, the copper layer uniformly covers the outer peripheral surface of the aluminum layer, and the composite metal wires cover the outer peripheral surface of the first aluminum foil layer; the surface coverage of the composite metal wires in the braided layer is more than 80%.

2. The endoscope connector according to claim 1, characterized in that, The internal signal line group includes a first signal line, a second signal line, a power line, and filler. The first signal line is used to transmit a first type of signal, the second signal line is used to transmit a second type of signal, and the power line is used to connect to a power source.

3. The endoscope connector according to claim 2, characterized in that, The first signal line includes multiple first core wires, a ground wire, and a shielding layer that wraps around the multiple first core wires and the ground wire.

4. The endoscope connector according to claim 3, characterized in that, The shielding layer comprises a second aluminum foil layer and a polyester film layer arranged sequentially from the inside out.

5. The endoscope connector according to claim 2, characterized in that, The first signal line consists of multiple wires, and the multiple first signal lines are twisted together to form an integral structure.

6. The endoscope connector according to claim 2, characterized in that, The second signal line includes multiple second core wires, which are twisted together to form a single structure.

7. The endoscope connector according to claim 2, characterized in that, The power cord includes multiple third core wires.

8. The endoscope connector according to claim 7, characterized in that, The third core wire includes a center conductor and an insulation layer arranged sequentially from the inside out.

9. The endoscope connector according to claim 7, characterized in that, The third core wire includes a center conductor, an insulation layer, an outer conductor, and an outer sheath arranged sequentially from the inside to the outside, with the center conductor and the outer conductor arranged coaxially.

10. The endoscope connector according to claim 2, characterized in that, The filling material is cotton yarn or nylon filament; the outer layer is a soft plastic layer made of PVC, TPE, TPU or any biodegradable material.

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