Corrosion-resistant and low-temperature-resistant medical cable

Abstract

The utility model relates to a corrosion-resistant low temperature-resistant medical cable, which comprises a heating wire, leads, a first low temperature-resistant layer, a second low temperature-resistant layer and a heat conduction material, the heating wire is arranged along the axis of the cable, a plurality of leads are uniformly distributed on the outer side of the heating wire along the radial direction of the cable, and all the leads and the heating wire are coated on the inner side of an insulating layer. The shielding layer is arranged on the outer side of the insulating layer, the first low-temperature-resistant layer is arranged on the outer side of the shielding layer, the heat preservation layer is arranged on the outer side of the first low-temperature-resistant layer, the corrosion-resistant layer is arranged on the outer side of the heat preservation layer, and the second low-temperature-resistant layer is arranged on the outer side of the corrosion-resistant layer. According to the medical equipment cable, the high-temperature-resistant layer is arranged, the silicone rubber and the buna-N rubber which are excellent in low-temperature resistance are selected, the cable can work normally at the extremely low temperature, the polytetrafluoroethylene corrosion-resistant layer is arranged, the inner structure of the cable can be effectively protected against corrosion due to the corrosion resistance of the buna-N rubber, and therefore the accuracy and reliability of the medical equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a corrosion-resistant and low-temperature-resistant medical cable. Background Art

[0002] With the development of high-end medical equipment and the continuous development of science, medical cables play an important role as an essential part of medical equipment. Medical cables need to have multiple functions when used. However, the existing medical cables on the market are not resistant to corrosion and low temperatures, which leads to great limitations in use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a corrosion-resistant and low-temperature-resistant medical cable in view of the above shortcomings.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A corrosion-resistant and low-temperature-resistant medical cable comprises a heating wire, a conductor, a first low-temperature-resistant layer, a second low-temperature-resistant layer and a thermally conductive material. The heating wire is arranged along the cable axis, and a plurality of conductors are evenly distributed radially along the outside of the heating wire. All conductors and the heating wire are wrapped on the inside of an insulating layer, a shielding layer is provided on the outside of the insulating layer, a first low-temperature-resistant layer is provided on the outside of the shielding layer, an insulation layer is provided on the outside of the first low-temperature-resistant layer, a corrosion-resistant layer is provided on the outside of the insulation layer, and a second low-temperature-resistant layer is provided on the outside of the corrosion-resistant layer.

[0006] Furthermore, the gaps between the insulating layer and the conductive wires and the heating wires are filled with a thermally conductive material, which is used to evenly conduct the heat generated by the heating wires to the multiple conductive wires, and the thermally conductive material is made of graphite.

[0007] Furthermore, the heating wire is a silicone heating wire.

[0008] Furthermore, the first low-temperature resistant layer is made of silicone rubber.

[0009] Furthermore, the second low-temperature resistant layer is made of nitrile rubber.

[0010] Furthermore, the thermal insulation layer is an aerogel felt wrapping layer.

[0011] Furthermore, the material of the corrosion-resistant layer is polytetrafluoroethylene.

[0012] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:

[0013] The utility model provides a first low-temperature resistant layer and a second low-temperature resistant layer, and selects silicone rubber and nitrile rubber, two materials with excellent low-temperature resistance, so that the cable can maintain normal operation at extremely low temperatures. The provision of a polytetrafluoroethylene corrosion-resistant layer, combined with the corrosion resistance of nitrile rubber, can effectively protect the internal structure of the cable from corrosion, thereby improving the accuracy and reliability of the medical equipment; the heating wire generates heat after being energized, and by filling the gap between the insulating layer and the wire and the heating wire with a thermal conductive material made of graphite, the heat generated by the heating wire can be effectively and evenly conducted to multiple wires, ensuring that the cable can quickly heat up and maintain a stable operating temperature in a low-temperature environment, further improving the low-temperature resistance and service life of the cable; the thermal insulation layer adopts an aerogel felt wrapping layer, which has excellent thermal insulation performance and can effectively reduce the heat loss of the cable in a low-temperature environment, so that the cable can remain in the operating temperature range for a longer time.

[0014] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Heating wire; 2. Conducting wire; 3. First low-temperature resistant layer; 4. Second low-temperature resistant layer; 5. Thermal conductive material; 6. Insulating layer; 7. Shielding layer; 8. Thermal insulation layer; 9. Corrosion-resistant layer. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise" and "counterclockwise" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] like Figure 1-2As shown, a corrosion-resistant and low-temperature-resistant medical cable includes a heating wire 1, a conductor 2, a first low-temperature-resistant layer 3, a second low-temperature-resistant layer 4 and a heat-conductive material 5. The heating wire 1 is arranged along the cable axis, and a plurality of conductors 2 are evenly distributed along the radial direction of the cable on the outside of the heating wire 1. All conductors 2 and the heating wire 1 are wrapped on the inner side of an insulating layer 6, a shielding layer 7 is provided on the outside of the insulating layer 6, a first low-temperature-resistant layer 3 is provided on the outside of the shielding layer 7, a thermal insulation layer 8 is provided on the outside of the first low-temperature-resistant layer 3, a corrosion-resistant layer 9 is provided on the outside of the thermal insulation layer 8, and a second low-temperature-resistant layer 4 is provided on the outside of the corrosion-resistant layer 9.

[0022] As an embodiment, the gap between the insulating layer 6 and the wire 2 and the heating wire 1 is filled with a thermal conductive material 5, and the thermal conductive material 5 is used to evenly conduct the heat generated by the heating wire 1 to the multiple wires 2. The thermal conductive material 5 is made of graphite.

[0023] As an embodiment, the heating wire 1 is a silicone heating wire.

[0024] As an embodiment, the first low-temperature resistant layer 3 is made of silicone rubber.

[0025] As an embodiment, the second low-temperature resistant layer 4 is made of nitrile rubber.

[0026] As an embodiment, the thermal insulation layer 8 is an aerogel felt wrapping layer.

[0027] As an embodiment, the material of the corrosion-resistant layer 9 is polytetrafluoroethylene.

[0028] The working process of the present invention: the silicone heating wire 1 inside the cable acts as a heat source and starts to generate heat. This heat is evenly conducted to the multiple conductors 2 distributed around it through the thermal conductive material 5 made of graphite, ensuring that the conductors 2 can maintain a suitable working temperature in a low-temperature environment. The heat conducted by the thermal conductive material 5 forms a stable temperature field inside the cable. At the same time, the aerogel felt wrapping layer serves as an insulation layer 8, which effectively reduces the heat loss of the cable and keeps the cable within the required operating temperature range. The first low-temperature resistant layer 3 of silicone rubber and the second low-temperature resistant layer 4 of nitrile rubber together provide double protection for the cable, ensuring that the cable can maintain normal mechanical and electrical properties even at extremely low temperatures. Polytetrafluoroethylene and nitrile rubber jointly protect the internal structure of the cable from corrosion.

[0029] The above description is merely an example of the preferred embodiment of the present invention. Any details not described in detail are common knowledge within the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. A corrosion-resistant and low-temperature-resistant medical cable, characterized in that: The invention comprises a heating wire (1), a conductor (2), a first low-temperature resistant layer (3), a second low-temperature resistant layer (4) and a heat-conducting material (5), wherein the heating wire (1) is arranged along the cable axis, a plurality of conductors (2) are evenly distributed along the radial direction of the cable on the outside of the heating wire (1), all conductors (2) and the heating wire (1) are covered on the inside of an insulating layer (6), a shielding layer (7) is arranged on the outside of the insulating layer (6), a first low-temperature resistant layer (3) is arranged on the outside of the shielding layer (7), a heat-insulating layer (8) is arranged on the outside of the first low-temperature resistant layer (3), a corrosion-resistant layer (9) is arranged on the outside of the heat-insulating layer (8), and a second low-temperature resistant layer (4) is arranged on the outside of the corrosion-resistant layer (9).

2. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The gaps between the insulating layer (6) and the wires (2) and the heating wire (1) are filled with a heat-conducting material (5), and the heat-conducting material (5) is used to evenly conduct the heat generated by the heating wire (1) to the plurality of wires (2). The heat-conducting material (5) is made of graphite.

3. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The heating wire (1) is a silica gel heating wire.

4. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The material of the first low-temperature resistant layer (3) is silicone rubber.

5. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The material of the second low-temperature resistant layer (4) is nitrile rubber.

6. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The thermal insulation layer (8) is an aerogel felt wrapping layer.

7. The corrosion-resistant and low-temperature-resistant medical cable according to claim 1, characterized in that: The material of the corrosion-resistant layer (9) is polytetrafluoroethylene.

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