Signal line and endoscope
By simplifying the signal line structure and dividing it into two groups of wire cores arranged side by side, the problems of complex manufacturing and difficult installation of existing signal lines are solved, enabling convenient installation and efficient production of endoscopes.
Patent Information
- Application Number
- CN202423205367.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing signal line has a complex structure, resulting in high manufacturing costs and complicated installation processes. It cannot be directly used in endoscope insertion tubes, which affects the application scenarios.
Design a signal line including an outer sheath and two sets of wire cores. Each set of wire cores consists of enameled wire, an insulation layer, and a shielding layer. The wire cores are arranged side by side. The enameled wire is used for output signal, grounding, and power supply, simplifying the structure and reducing manufacturing steps.
It simplifies the installation of signal lines, reduces manufacturing costs, improves production efficiency, and ensures signal quality, making it suitable for direct connection to endoscope insertion tubes.
Smart Images
Figure CN223598422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field especially, and it is a kind of signal line and endoscope. BACKGROUND
[0002] As people's requirements for signal transmission are higher and higher, the signal line is expected to have strong anti-interference ability to external signals, but the strength of anti-interference ability is often determined by adding various anti-interference materials in the line, for example, the coaxial line has, from the outside to the inside, a sheath, an outer conductor layer, an insulating medium layer and an inner conductor. The complex internal structure of the signal line makes the manufacturing process of the signal line complex, the manufacturing efficiency is low, the manufacturing cost is high, and the preparation cost is greatly increased. When the existing signal line is actually used in the product, the procedure is complicated, and manual cutting and stripping of the signal line are required to remove the protective layer and the shielding layer, for example, for the coaxial line, the sheath and the outer conductor layer need to be removed, which greatly increases the cost.
[0003] Due to the complex internal structure of the signal line, the diameter of the signal line is large, which leads to fewer use scenarios, especially in the medical instrument field, the signal line cannot be directly connected to the host computer from the insertion tube of the endoscope, the signal line needs to be stripped, or a thin wire needs to be inserted into the insertion tube, and the signal line and the thin wire are connected by a wiring board, and the thin wire is connected to the camera. The above settings will complicate the installation process and increase the installation cost.
[0004] Therefore, there is an urgent need for a signal line and an endoscope to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of signal line and endoscope, it is convenient to install when being applied in endoscope, and internal structure is relatively simple, reduce manufacturing process and preparation cost, it is favorable to improve manufacturing efficiency, in addition, it can guarantee the quality of output signal.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] On the one hand, a kind of signal line is provided, comprising:
[0008] an outer sheath,
[0009] two groups of wire cores are arranged side by side in the outer sheath, each group of wire cores includes an enameled wire, an isolation layer and a shielding layer, the isolation layer is wrapped outside the enameled wire, and the shielding layer is wrapped outside the isolation layer. In one of the wire cores, one enameled wire is provided for outputting signals; in the other group of wire cores, three enameled wires are provided for grounding, power supply and inputting signals respectively; in the two groups of wire cores, the first end of the enameled wire extends out of the outer sheath and passes through the insertion tube of the endoscope to connect with the camera, and the second end of the enameled wire is connected with the host computer.
[0010] In some possible implementation manners, the isolation layer is a tubular structure, and in the wire core provided with one enameled wire, the tubular structure is clamped outside the enameled wire, and in the wire core provided with three enameled wires, the tubular structure is clamped outside the three enameled wires.
[0011] In some possible implementation manners, the material of the isolation layer is Teflon.
[0012] In some possible implementation manners, the shielding layer is a metal foil, and the metal foil is wrapped outside the isolation layer.
[0013] In some possible implementation manners, the metal foil is a copper foil.
[0014] In some possible implementation manners, the outer sheath is a tubular structure, and the tubular structure is clamped outside the two groups of wire cores.
[0015] In some possible implementation manners, the outer sheath is a silica gel sleeve or a heat shrink tube.
[0016] In some possible implementation manners, the first end of the enameled wire extends by 0.8 meters.
[0017] In some possible implementation manners, the second end of the enameled wire is welded with a connecting wire of a host computer.
[0018] In another aspect, an endoscope is provided, comprising an insertion tube, a camera and the signal line according to any one of the above-mentioned aspects, the camera is fixed to the insertion tube and located at the front end of the insertion tube, the first end of the enameled wire extends out of the outer sheath and passes through the insertion tube to be connected with the camera, and the second end of the enameled wire is connected with a host computer.
[0019] The endoscope has the following beneficial effects:
[0020] The signal line provided by the utility model, when applied to an endoscope, only needs to extend the enameled wire into the insertion tube and connect it with the camera, without the need of stripping the signal line or connecting the signal line with the thin wire by using a wiring board in the insertion tube, so that the installation is convenient. In addition, the internal structure is relatively simple, the enameled wire is an existing component that is easy to obtain, only needs to be wrapped with an isolation layer, a shielding layer and an outer sheath, so that the manufacturing process and the preparation cost are reduced, and the manufacturing efficiency is improved.
[0021] In addition, the enameled wire for the output signal is separated from the three enameled wires for the ground, power supply and input signal, and the two groups of wire cores are arranged side by side, so that the other three enameled wires can avoid interfering with the output signal and the quality of the output signal is ensured. Specifically, in the two groups of wire cores, the shielding layer is arranged to avoid external signal interference and signal interference between the two groups of wire cores; the isolation layer is arranged to effectively overcome the distributed capacitance between the enameled wire and the shielding layer and the distributed capacitance between the enameled wire in one group of wire cores and the enameled wire in the other group of wire cores.
[0022] The utility model also provides an endoscope, signal wire in the endoscope is convenient to install in the insertion tube, and the internal structure of signal wire is relatively simple, reduces manufacturing procedure and preparation cost, is favorable to improving manufacturing efficiency, in addition, can guarantee the quality of output signal. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 is the sectional view of the signal wire provided by the utility model;
[0024] Figure 2 is the axonometric drawing of the signal wire (only shows the first end of enameled wire) provided by the utility model.
[0025] In the drawings:
[0026] 1, outer sheath;
[0027] 2, wire core; 21, enameled wire; 22, isolation layer; 23, shielding layer. DETAILED DESCRIPTION
[0028] The utility model will be described further in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0029] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0030] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature is on, above and on of second feature includes that first feature is directly above and obliquely above of second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature is under, below and under of second feature includes that first feature is directly below and obliquely below of second feature, or only indicates that horizontal height of first feature is less than second feature.
[0031] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" refer to the orientation or position shown in the drawings, which are for convenience and simplification of description and operation only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0032] As shown in Figure 1 and Figure 2 The utility model provides a signal line, can realize stable transmission in the transmission process of megahertz level signal, and experiment proves that does not affect image display effect. The signal line includes outer sheath 1 and two groups of wire core 2, two groups of wire core 2 are side by side and are arranged in outer sheath 1, and each wire core 2 includes enameled wire 21, isolation layer 22 and shielding layer 23, isolation layer 22 is covered in enameled wire 21 outside, shielding layer 23 is covered in isolation layer 22 outside, in one of wire core 2, enameled wire 21 is equipped with one for output signal, in another wire core 2, enameled wire 21 is equipped with three, three enameled wires 21 are used for grounding, power supply and input signal respectively, in two groups of wire core 2, the first end of enameled wire 21 all stretches out outer sheath 1 and is arranged in the insertion tube of endoscope to be connected with camera head, and the second end of enameled wire 21 all is connected with host computer. When the signal line is applied to endoscope, only enameled wire 21 is stretched into the insertion tube and is connected with the camera head, does not need to strip the signal line, or uses the terminal strip in the insertion tube to connect the signal line with the fine wire, and the installation is convenient. In addition, the internal structure is relatively simple, and enameled wire 21 is the component that present easy obtains, only needs to cover isolation layer 22, shielding layer 23 and outer sheath 1 outside enameled wire 21, reduces the manufacturing procedure and preparation cost, is favorable to improving the manufacturing efficiency.
[0033] In addition, the enamel wire 21 for the output signal is separated from the three enamel wires 21 for the ground, power supply and input signal, and the two groups of wire cores 2 are arranged side by side, so that the other three enamel wires 21 can avoid interfering with the output signal, and the quality of the output signal is ensured. Specifically, in the two groups of wire cores 2, the shielding layer 23 is arranged to avoid external signal interference and signal interference between the two groups of wire cores 2; the isolation layer 22 is arranged to effectively overcome the distributed capacitance between the enamel wire 21 and the shielding layer 23, and also effectively overcome the distributed capacitance between the enamel wire 21 in one group of wire cores 2 and the enamel wire 21 in the other group of wire cores 2.
[0034] Optionally, in the embodiment, the isolation layer 22 is in a tubular structure, and in the wire core 2 provided with one enamel wire 21, the tubular structure is clamped outside the enamel wire 21, and in the wire core 2 provided with three enamel wires 21, the tubular structure is clamped outside the three enamel wires 21. In this way, the structure of the signal line is simple, and the isolation layer 22 is convenient to process and manufacture, which reduces the manufacturing process and preparation cost, and is beneficial to improve the manufacturing efficiency. In other embodiments, the isolation layer 22 can be extruded and wrapped outside the enamel wire 21. Optionally, the material of the isolation layer 22 is an insulating material, and specifically, in the embodiment, the material of the isolation layer 22 is Teflon. Teflon has high dielectric constant and low dielectric loss, can maintain the stability and accuracy of the signal in high-frequency transmission, and has excellent softness and bending resistance.
[0035] Optionally, the shielding layer 23 is a metal foil, and the metal foil is wrapped outside the isolation layer 22. In this way, the structure of the signal line is simple, and the shielding layer 23 is convenient to process and manufacture, which reduces the manufacturing process and preparation cost, and is beneficial to improve the manufacturing efficiency. In other embodiments, a metal material can be extruded and wrapped outside the isolation layer 22 to form the shielding layer 23, or a metal wire is wrapped outside the isolation layer 22 in an alternating direction, or a soft metal belt is wrapped outside the isolation layer 22. Specifically, in the embodiment, the metal foil is a copper foil, and copper has high conductivity, which can effectively shield external electromagnetic interference, ensure the accuracy and stability of communication and signal transmission, and also has good heat dissipation performance and high mechanical strength.
[0036] Optionally, in the embodiment, the outer sheath 1 is a tubular structure, and the tubular structure is clamped outside the two groups of wire cores 2. In this way, the structure of the signal line is simple, and the outer sheath 1 is convenient to process and manufacture, thereby reducing the manufacturing process and preparation cost, and being conducive to improving the manufacturing efficiency. In other embodiments, the outer sheath 1 can be extruded and wrapped outside the two groups of wire cores 2. Optionally, the outer sheath 1 is an insulating flexible tube. Specifically, in the embodiment, the outer sheath 1 is a silica gel sleeve or a heat shrink tube. The silica gel sleeve is resistant to high temperature and has good bending elasticity, and can effectively protect the two groups of wire cores 2, thereby improving the stability of use. The heat shrink tube has excellent insulation performance, can effectively prevent current leakage and external corrosion, and has soft material.
[0037] Optionally, in the embodiment, as shown in Figure 2 the first end of the enameled wire 21 extends by a length of 0.8 meters. In this way, the part of the first end of the enameled wire 21 extending out is located in the insertion tube, and can be connected with the camera.
[0038] Optionally, in the embodiment, the second end of the enameled wire 21 is welded with the connection line of the host. In this way, the connection is firm, and electric arc and electric spark caused by poor contact can be avoided.
[0039] Exemplarily, in the manufacturing of the signal line of the embodiment, the enameled wire 21 can be clamped into the isolation layer 22 first, then the copper foil is wrapped outside the isolation layer 22 to obtain the two groups of wire cores 2, and finally the two groups of wire cores 2 are clamped into the outer sheath 1, thereby reducing the manufacturing process and preparation cost, and being conducive to improving the manufacturing efficiency.
[0040] The utility model also provides a kind of endoscope, including insertion tube, camera and signal line, camera is fixed in insertion tube, and it is located at the front end of insertion tube, the first end of enameled wire 21 is all extended outer sheath 1 and is arranged insertion tube to be connected with camera, the second end of enameled wire 21 is all connected with host computer. The signal line in the endoscope is conveniently installed in insertion tube, and the internal structure of signal line is relatively simple, reduces the manufacturing process and preparation cost, and is conducive to improving the manufacturing efficiency, in addition, it can guarantee the quality of output signal.
[0041] Obviously, the above embodiments of the utility model are only for clear illustration of the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled person in the art, various obvious changes, re-adjustment and replacement can be carried out without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A signal line, characterized by The utility model relates to a signal line for endoscope, which comprises: An outer sheath (1); Two groups of wire cores (2) are arranged side by side in the outer sheath (1), each group of the wire cores (2) comprises an enameled wire (21), an isolation layer (22) and a shielding layer (23), the isolation layer (22) is wrapped outside the enameled wire (21), and the shielding layer (23) is wrapped outside the isolation layer (22), in one of the wire cores (2), one enameled wire (21) is arranged for outputting a signal, in the other wire core (2), three enameled wires (21) are arranged for grounding, power supply and inputting a signal respectively, in the two groups of wire cores (2), the first ends of the enameled wires (21) are arranged to extend out of the outer sheath (1) and pass through an insertion tube of an endoscope to be connected with a camera, and the second ends of the enameled wires (21) are connected with a host computer.
2. The signal line of claim 1, wherein, The isolation layer (22) is in a tubular structure, and in the wire core (2) with one enameled wire (21), the tubular structure is clamped outside the enameled wire (21), and in the wire core (2) with three enameled wires (21), the tubular structure is clamped outside the three enameled wires (21).
3. The signal line of claim 2, wherein, The isolation layer (22) is made of Teflon.
4. The signal line of claim 1, wherein, The shielding layer (23) is a metal foil, and the metal foil is wrapped outside the isolation layer (22).
5. The signal line of claim 4, wherein, The metal foil is a copper foil.
6. The signal line of claim 1, wherein, The outer sheath (1) is in a tubular structure, and the tubular structure is clamped outside the two groups of wire cores (2).
7. The signal line of claim 6, wherein, The outer sheath (1) is a silica gel sleeve or a heat shrink tube.
8. The signal line of claim 1, wherein, The first end of the enameled wire (21) extends out by 0.8 meters.
9. The signal line of claim 1, wherein, The second end of the enameled wire (21) is welded with a connecting line of the host computer.
10. An endoscope characterized by comprising: The utility model relates to an endoscope, which comprises an insertion tube, a camera and a signal line as claimed in any one of claims 1-9, the camera is fixed to the insertion tube and located at the front end of the insertion tube, the first ends of the enameled wires (21) extend out of the outer sheath (1) and pass through the insertion tube to be connected with the camera, and the second ends of the enameled wires (21) are connected with the host computer.