CN218602131U

CN218602131U - Composite cable for medical diagnosis equipment

Info

Publication number: CN218602131U
Application number: CN202222868563.5U
Authority: CN
Inventors: 李艳; 陈国军; 顾枭; 化明明; 顾赛娅
Original assignee: Suzhou Cableplus Photoelectric Technology Co ltd
Current assignee: Suzhou Cableplus Photoelectric Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-10
Anticipated expiration: 2032-10-27

Abstract

The utility model relates to a medical treatment is composite cable for diagnostic equipment, a serial communication port, include: two electrical units and a signal transmission unit; the signal transmission unit comprises two twisted signal wires, shielding layers are coated on the outer sides of the two signal wires in a spiral mode, and the shielding layers comprise a plurality of metal wires which are arranged side by side; the two electric units and the signal transmission unit are twisted to form a cable core, and an outer sheath layer is coated on the outer side of the cable core. The utility model can eliminate the electromagnetic interference between the signal wires by twisting the signal wires; the shielding layer is added on the outer side of the signal wire, so that the interference of the outside on the transmission of the internal signal wire can be prevented; meanwhile, the shielding layer is coated in an inclined packaging mode, so that the flexibility of the whole signal transmission unit can be increased on the basis of ensuring the shielding effect, the movement of the cable connecting equipment is facilitated, and the normal use of the equipment is ensured.

Description

Composite cable for medical diagnosis equipment

Technical Field

The utility model belongs to the technical field of the cable manufacturing technique and specifically relates to indicate a composite cable for medical diagnosis equipment.

Background

The development of medical equipment is a basic condition for continuously improving the technical level of medical science, and plays a decisive role in the development of clinical disciplines. With the development of science and technology, various novel medical instruments are more and more, and various treatment methods are more and more finely classified, different treatments need different medical equipment diagnoses, and the functional requirements on the medical equipment are higher.

The medical equipment in the market at present is mainly divided into three main types, namely diagnostic equipment, therapeutic equipment and auxiliary equipment, in order to ensure the normal use of the equipment, the electrified conducting wire and signal wire are combined to form a cable, the number of cable cores in the cabled wire harness is large, and particularly for some detection equipment, the stability of the internal wire harness for transmitting signals needs to be ensured. After the whole cable is connected into the equipment, the interference between the wire harnesses needs to be overcome, and the interference between the wire harnesses and the equipment needs to be avoided.

In order to avoid signal interference, a conventional medical equipment cable generally adopts a mode of adding a metal shield on the outer side of a wire harness, but the flexibility of the whole wire harness is reduced, and the frequent movement of equipment is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that the multicore composite cable is low in pliability after the stranding among the overcome prior art.

In order to solve the technical problem, the utility model provides a composite cable for medical diagnosis equipment, include: two electrical units and a signal transmission unit;

the signal transmission unit comprises two twisted signal wires, shielding layers are coated on the outer sides of the two signal wires in a spiral mode, and the shielding layers comprise a plurality of metal wires which are arranged side by side;

the two electric units and one signal transmission unit are twisted to form a cable core, and an outer sheath layer is coated on the outer side of the cable core.

In an embodiment of the invention, the electrical unit comprises a conductor, the outside of which is coated with an insulating layer.

In one embodiment of the present invention, the material of the conductor is a tin-plated copper conductor.

In one embodiment of the present invention, the material of the insulating layer is fluorinated ethylene propylene copolymer.

In an embodiment of the present invention, the signal transmission unit further includes a PTFE film disposed outside the shielding layer.

In an embodiment of the present invention, a center reinforcement is disposed between the electrical unit and the signal transmission unit, and the electrical unit and the signal transmission unit are twisted around the center reinforcement.

In an embodiment of the present invention, the central reinforcement is made of aramid fiber.

In an embodiment of the present invention, a winding covering is disposed between the cable core and the outer sheath layer, and the material of the winding covering is a non-woven fabric.

In an embodiment of the utility model, it has cotton yarn to fill around covering with between the cable core.

In one embodiment of the present invention, the material of the outer sheath layer is polyether type halogen-free flame retardant thermoplastic polyurethane.

Compared with the prior art, the technical scheme of the utility model have following advantage:

the utility model can eliminate the electromagnetic interference between the signal wires by twisting the signal wires; the shielding layer is added on the outer side of the signal wire, so that the interference of the outside on the transmission of the internal signal wire can be prevented; meanwhile, the shielding layer is coated in an inclined packaging mode, so that the flexibility of the whole signal transmission unit can be increased on the basis of ensuring the shielding effect, the cable connecting equipment can be conveniently moved, and the normal use of the equipment is ensured.

Drawings

In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the signal transmission unit in fig. 1;

the specification reference numbers indicate: 1. an electrical unit; 2. a signal transmission unit; 3. a central reinforcement; 4. cotton yarn; 5. wrapping a covering; 6. an outer jacket layer; 11. a conductor; 12. an insulating layer; 21. a signal line; 22. a shielding layer; 23. a PTFE membrane.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-2, the utility model discloses a composite cable for medical diagnostic equipment, include: two electrical units 1 and one signal transmission unit 2; the electrical unit 1 is used for supplying power to the equipment, and the signal transmission unit 2 is used for transmitting signals to the equipment.

The signal transmission unit 2 comprises two twisted-pair signal wires 21, the outer sides of the two signal wires 21 are coated with shielding layers 22, the outer sides of the two signal wires 21 are coated with the shielding layers 22 in a spiral mode, and each shielding layer 22 comprises a plurality of metal wires which are arranged side by side;

in order to ensure the stability of signal transmission, the utility model adopts the mode of twisting the two signal wires 21 for fixation, thus reducing the distance between the two signal wires 21 and offsetting the electric wave generated by the two signal wires 21; the shielding layer 22 coated on the outer side can prevent external signal interference and ensure the stability of signal transmission. As the preferred scheme of the utility model, shielding layer 22 adopts many metal wires side by side to form the shielding area, through the spiral around the mode cladding of package in the outside of pair twist signal line 21. By adopting the oblique package mode, the interference of external signals can be effectively avoided, and good flexibility can be ensured. It should be noted that during the wrapping process, the angle of the wrapping and the size of the lap joint of the wrapping need to be ensured.

Two electric units 1 and a signal transmission unit 2 transposition formation cable core, the outside cladding of cable core has outer jacket layer 6, and outer jacket layer 6 is as the outermost protection of cable, and crowded package improves the wearability of whole cable in the outside of cable core in process of production.

The utility model can eliminate the electromagnetic interference between the signal wires 21 by twisting the signal wires 21; by adding the shielding layer 22 on the outer side of the signal line 21, the interference of the outside to the transmission of the internal signal line 21 can be prevented; meanwhile, the shielding layer 22 is coated in an inclined wrapping mode, so that the flexibility of the whole signal transmission unit 2 can be increased on the basis of ensuring the shielding effect, the cable is convenient to move after being connected with equipment, and the normal use of the equipment is ensured.

Further, the electric unit 1 includes a conductor 11, and the outside of the conductor 11 is covered with an insulating layer 12; because the utility model discloses finally be used for being connected with medical equipment behind the stranding, need consider the influence of equipment environment to whole cable. The medical equipment is prevented from being in hospitals where it is necessary to regularly spray sterilized water for the purpose of viral transmission and infection, and thus it is necessary to ensure the moisture resistance and corrosion resistance of the electric unit 1.

Inside heart yearn conductor 11 is the essential element who realizes the function of transmission electric charge, so conductor 11 selects vital importance, for under the prerequisite of assurance quality, has selected low-cost tinned copper conductor 11, and tinned copper conductor 11 not only is applicable to under the normal atmospheric temperature environment, more is applicable to and installs under humid condition, is close to salt solution, disinfectant's customization electric wire and needs increase of service life's product, and difficult emergence oxidation is as the utility model discloses a preferred scheme, conductor 11's material is tinned copper conductor 11.

In a preferred embodiment of the present invention, the insulating layer 12 is made of fluorinated ethylene propylene copolymer, also known as FEP NP-101, which is formed by melting tetrafluoroethylene and hexafluoropropylene copolymer. High chemical resistance, electrical property, mechanical strength and the like, and the continuous use temperature is 200 ℃. Excellent fluidity, stable melt mass flow rate MFR, high melting point and low density.

In order to further improve the strength and flexibility of the signal transmitting unit 2, the signal transmitting unit 2 further includes a PTFE film 23, and the PTFE film 23 is disposed outside the shield layer 22. Specifically, add the package of lapping of the non-directional film of PTFE outside signal line 21 after the oblique package shielding layer 22, non-directional PTFE film 23 is soft, and the pulling force is strong, can make the structure closely round, and dampproofing, the surface is smooth, has greatly strengthened the bending and twisting performance of cable.

Further, in order to improve the tensile strength of the whole cable, a central reinforcing part 3 is arranged between the electric units 1 and the signal transmission units 2, specifically, the electric units 1 and the signal transmission units 2 are twisted around the central reinforcing part 3, and in the production process, the two electric units 1 and one signal unit are twisted outside the central reinforcing part 3, so that the tensile strength after cabling is increased, and the movement of equipment is facilitated.

As a preferred scheme of the utility model, the material of central reinforcement 3 is aramid fiber, and aramid fiber is as non-metallic material, when increasing the tensile strength of cable, can also reduce the quality of cable.

Further, be provided with around covering 5 between cable core and the oversheath layer 6, be the non-woven fabrics around the material of covering 5, because of the direct sheath behind the stranding, for conveniently opening the skin and guaranteeing that the outward appearance does not have the ripple, increase one deck non-woven fabrics around the package, can so that the tight rounding of stranding mechanism appears when also avoiding the sheath high temperature to extrude.

Furthermore, in order to facilitate the formation of the cable, cotton yarns 4 are filled between the wrapping layer 5 and the cable core; because the cotton yarn 4 mainly comprises the cotton yarn 4 and chemical fiber, the cable is soft, has good cabling effect, high temperature resistance and good strength, has the functions of rounding and beautifying, resisting tension and bending, and has low price.

Furthermore, as the preferred scheme of the utility model, the material of oversheath layer 6 is the halogen-free fire-retardant thermoplastic polyurethane of polyether type. The rubber has good elasticity, excellent antimicrobial property, excellent water resistance, no halogen, good flame retardance, ultraviolet resistance, good mechanical property and MEK (chemical medicine) resistance, and is a very good medical sheath material.

To sum up, the utility model introduces a composite cable for medical diagnosis equipment, the structure of the cable adopts the mode of combining the electric unit 1 and the signal transmission unit 2, wherein the mode of twisting the two signal wires 21 is fixed, thus the distance between the two signal wires 21 can be reduced, and the electric wave generated by the two signal wires 21 can be offset; the shielding layer 22 coated on the outer side can prevent external signal interference and ensure the stability of signal transmission. Next, the shielding layer 22 is formed by a plurality of metal wires arranged side by side to form a shielding tape, and is wrapped outside the twisted-pair signal wire 21 in a spiral wrapping manner. Not only can effectively avoid the interference of external signals, but also can ensure good flexibility.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A composite cable for medical diagnostic equipment, comprising: two electrical units and a signal transmission unit;

2. The composite cable for medical diagnostic equipment according to claim 1, characterized in that: the electric unit comprises a conductor, and the outer side of the conductor is coated with an insulating layer.

3. The composite cable for medical diagnostic equipment according to claim 2, characterized in that: the conductor is made of a tin-plated copper conductor.

4. The composite cable for medical diagnostic equipment according to claim 2, characterized in that: the insulating layer is made of fluorinated ethylene propylene copolymer.

5. The composite cable for medical diagnostic equipment according to claim 1, characterized in that: the signal transmission unit further comprises a PTFE film, and the PTFE film is arranged on the outer side of the shielding layer.

6. The composite cable for medical diagnostic equipment according to claim 1, characterized in that: a central reinforcement is arranged between the electric unit and the signal transmission unit, and the electric unit and the signal transmission unit are twisted around the central reinforcement.

7. The composite cable for medical diagnostic equipment according to claim 6, characterized in that: the central reinforcing piece is made of aramid fiber.

8. The composite cable for medical diagnostic equipment according to claim 1, characterized in that: and a wrapping layer is arranged between the cable core and the outer sheath layer, and the wrapping layer is made of non-woven fabric.

9. The composite cable for medical diagnostic equipment according to claim 8, characterized in that: and cotton yarns are filled between the wrapping layer and the cable core.

10. The composite cable for medical diagnostic equipment according to claim 1, characterized in that: the outer sheath layer is made of polyether type halogen-free flame-retardant thermoplastic polyurethane.