CN101169991A - Cable for medical apparatus - Google Patents

Abstract

The invention discloses a cable for medical equipment, which comprises a plurality of conducting wires, a thin film layer, a shell-proof filament braiding layer, and an outer coating layer. The conducting wire includes conductors and an insulating layer covering the conductor, and the conductors are integrated and twisted to form cable core. The thin film layer covers the cable core, the shell-proof filament braiding layer is braided at the periphery of the insulating layer, and the outer coating layer which is made of a medical-grade nontoxic silica gel covers the shell-proof braiding layer and. The thin film layer with good sealing performance and aging resistance covers the cable core to effectively protect the insulation performance of the cable core, the shell-proof filament braiding layer with good flexibility is braided at the periphery of the thin film layer to improve the twisting and pulling resistance of the cable and to prolong the service life, and the outer coating layer which is made of medical-grade nontoxic silica gel and covers the shell-proof filament braiding layer can improve the extrusion capacity and the equipment use performance and can satisfy the nontoxic requirement for medical equipment. Accordingly, the inventive cable can satisfy the hard conditions of various external environments where the medical equipment works.

Description

Cable for medical apparatus

Technical field

The present invention relates to a kind of cable for medical apparatus, relate in particular to a kind of anti-turn round anti-ly draw, nontoxic cable for medical apparatus.

Background technology

Electric wire has been widely used in the detection of medical treatment, industrial production, communications and transportation, architectural engineering and facility, modern agriculture and scientific research, engineer equipment or military installations, space, ocean at present, and has reached ubiquitous state.Along with socioeconomic activity description is carried out the development of step great-jump-forward from the degree of depth to the range, the electric wire kind is brought in constant renewal in and is perfect, and output continues to increase.For example, implement the cable that the transmission signals of the used Medical Devices of highly difficult operation was saved and carried out to open-air malpractice; Building the high-intelligentization building needs for hundreds of, thousands of computer network cable that electronic computer divides cascade network to use; Build the public cable television network in city, the whole city and even all banks of the whole nation banking procedure where deposits and withdrawals are processed at any branch bank, carry out online economic interaction and information interchange etc. and must install the broad band cable net that high reliability transport is used; Realize that the emission of military artillery or antiaircraft artillery group remote control procedure need design the control cable that is fit to field extreme environment.

The application of electric wire mainly is divided into three major types: electric power system, the information transmission system and engineering equipment and instrument and meter system.The electric wire product that electric power system adopts mainly contains built on stilts bare wire, bus-bar (bus), power cable, rubber cover cable, aerial insulated cable), branch cable (replacing the part bus), electromagnetic wire and power equipment be with the electrical equipment electric wire etc.The electric wire that is used for the information transmission system mainly contains local cable, camera cable, electronic cable, radio frequency cable, fiber optic cable, data cable, electromagnetic wire, power communication or other composite cables etc.In engineering equipment, the instrument and meter system except that built on stilts bare wire almost other all products application is all arranged, but mainly be power cable, electromagnetic wire, data cable, instrument and meter cable etc., cable for medical apparatus relates to above-mentioned three major types electric wire.

Medical Devices are at the medical applications of highly-specialised and design, so the employed cable of Medical Devices also must carry out particular design and just can provide optimum performance.By selecting suitable material and method for designing, can provide the cable solution that satisfies present and following high-tech medical treatment designing requirement fully.The medical grade cable can be very simple, also may be very complicated.Cable in the Medical Devices may be used to provide the either large or small electric current of power, send signal, transmits data or finish these functions simultaneously.The cable that Medical Devices use must keep consistency and reliability in the extremely wide environment of scope.All must consider mechanical property during every kind of cable design, as flexibility, flex life, anti-extrusion performance or draw and dial intensity etc.Adopt tough and tensile material can protect the conductor in the cable to preserve from.The cable of using as transmission signals many times all is the most directly to be exposed in the residing diversified external environment condition of Medical Devices, so cable design teacher need understand the environment that cable will use, cable for medical apparatus may also need particular processing and packing simultaneously, such as special processings such as sterilization and lucifuges, so cable for medical apparatus, not only real-time and the accuracy for signal all has high requirements, and for the mechanical property of cable itself very high requirement arranged also.In addition, cable for medical apparatus uses under some special environment usually, and operational environment very severe, temperature pressure change difference are subjected to the irradiation of X ray etc. greatly and directly, so cable for medical apparatus is easily aging and damaged, thereby causes equipment fault.Simultaneously, the serving of existing conventional cable causes environmental pollution in case aging breakage can produce halogen etc. usually.Common cable can not satisfy several essential conditions of the cable for medical apparatus that bending property is good, the life-span is long, anti-aging and nontoxic simultaneously at present.

Therefore, demand urgently providing the cable for medical apparatus that a kind of bending property is good, the life-span is long, anti-aging and nontoxic to overcome above defective.

Summary of the invention

The object of the present invention is to provide a kind of improved cable for medical apparatus, the cable for medical apparatus that described cable bending property is good, the life-span is long, anti-aging and nontoxic, and can satisfy the harsh conditions that are operated in the residing diversified external environment condition of Medical Devices.

For achieving the above object, technical scheme of the present invention is: a kind of cable for medical apparatus is provided, described cable for medical apparatus comprises some leads, thin layer, anti-elater braid and serving, described lead comprises conductor and coats the insulating barrier of described conductor, described insulating barrier is the moulding of medical grade non-toxic plastic, these conductor set twisted wires that are coated with insulating barrier are formed the cable cable core, described thin layer coats described cable cable core, described anti-elater braid is woven in described thin layer periphery, described serving coats described anti-elater braid, and described serving is the nontoxic silica gel moulding of medical grade.

Preferably, described thin layer is the white polytetrafluoroethylpipe plastics, and described insulating barrier is the nontoxic polyfluorinated ethylene plastic of medical grade, and described conductor is a silver-coated copper wire.

Preferably, described anti-elater braid is to be formed by Fanglun 1414 braiding, the density of braiding be 18 orders/cun.

Preferably, the lay of described set twisted wire is between between the 60mm to 70mm, totally ten in described lead.

Compared with prior art; the present invention is because described thin layer coats described cable cable core; have good seal and ageing resistance; can effectively protect the insulation property of cable cable core; described anti-elater braid is woven in described thin layer periphery; has good bending; make that cable is anti-turns round anti-drawing; prolonged useful life; described serving coats described anti-elater braid, and described serving is the nontoxic silica gel of medical grade, has improved the serviceability of extrusion capability and equipment; also satisfied simultaneously the avirulence requirement of Medical Devices, therefore cable of the present invention can satisfy the harsh conditions that are operated in the residing diversified external environment condition of Medical Devices.

Description of drawings

Fig. 1 is the structure chart of cable for medical apparatus of the present invention.

Fig. 2 is the sectional view of cable for medical apparatus shown in Figure 1.

Embodiment

With reference now to accompanying drawing, describe embodiments of the invention, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the present invention aims to provide the cable for medical apparatus that a kind of bending property is good, the life-span is long, anti-aging and nontoxic, and can satisfy the harsh conditions that are operated in the residing diversified external environment condition of Medical Devices.

As shown in Figures 1 and 2, cable for medical apparatus of the present invention comprises tenleads 110,thin layer 120,anti-elater braid 130 and serving 140, describedlead 110 comprisesconductor 111 and coats theinsulating barrier 112 of describedconductor 111, describedinsulating barrier 112 is the moulding of medical grade non-toxic plastic, theseconductor 111 set twisted wires that are coated withinsulating barrier 112 are formed the cable cable core, lay is between between the 60mm to 70mm, lay with 65mm is the best, describedthin layer 120 coats described cable cable core, describedanti-elater braid 130 is woven in describedthin layer 120 peripheries, described serving 140 coats describedanti-elater braid 130, and described serving 140 is the nontoxic silica gel moulding of medical grade, retractility is strong, and it is bad to be difficult for extruding, guarantees the operate as normal of Medical Devices.

The preferably, describedthin layer 120 is white polytetrafluoroethylpipe (PTFE) plastics, has good seal and ageing resistance, can effectively protect the insulation property of cable cable core.

The preferably, described anti-elater braid is to be that PPTA (Kevlar) fibrage of 400D forms by model, the density of braiding be 18 orders/cun, the bending that has improved cable makes that cable is anti-turns round anti-drawing, and has prolonged the useful life of cable.

The preferably, describedconductor 111 adopts suitable conductive material to make, and preferably silver-coated copper wire also can be other material, as copper cash, tinned wird or the like.Preferably, the conductor in thepresent embodiment 111 adopts the 28AWG line.Describedinsulating barrier 112 is medical grade perfluoroethylene-propylene (FEP) plastics, and is more high temperature resistant, and black, red, white, green, yellow, brown, blue, orange, purple, ten kinds of colors of ash are arranged, and is used for lead is distinguished.

The present invention is because describedthin layer 120 coats described cable cable core; have good seal and ageing resistance; can effectively protect the insulation property of cable cable core; describedanti-elater braid 130 is woven in describedthin layer 120 peripheries; has good bending; make that cable is anti-turns round anti-drawing; prolonged useful life; described serving 140 coats describedanti-elater braid 130; and described serving 140 is the nontoxic silica gel of medical grade; improved the serviceability of extrusion capability and equipment, also satisfied the avirulence requirement of Medical Devices simultaneously, therefore cable of the present invention can satisfy the harsh conditions that are operated in the residing diversified external environment condition of Medical Devices.

Material that cable for medical apparatus of the present invention is related and parameter are all decided according to actual conditions, for well known to those of ordinary skill in the art, no longer are described in detail at this.

Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.

Claims (7)

1. cable for medical apparatus, it is characterized in that: described cable for medical apparatus comprises some leads, thin layer, anti-elater braid and serving, described lead comprises conductor and coats the insulating barrier of described conductor, described insulating barrier is the moulding of medical grade non-toxic plastic, these conductor set twisted wires that are coated with insulating barrier are formed the cable cable core, described thin layer coats described cable cable core, described anti-elater braid is woven in described thin layer periphery, described serving coats described anti-elater braid, and described serving is the nontoxic silica gel moulding of medical grade.

2. cable for medical apparatus as claimed in claim 1 is characterized in that: described thin layer is a polytetrafluoroethylplastic plastic.

3. cable for medical apparatus as claimed in claim 1 is characterized in that: described anti-elater braid is to be formed by Fanglun 1414 braiding, the density of braiding be 18 orders/cun.

4. cable for medical apparatus as claimed in claim 1 is characterized in that: described insulating barrier is a polyfluorinated ethylene plastic.

5. cable for medical apparatus as claimed in claim 1 is characterized in that: the lay of described set twisted wire is between between the 60mm to 70mm.

6. cable for medical apparatus as claimed in claim 1 is characterized in that: totally ten in described lead.

7. cable for medical apparatus as claimed in claim 1 is characterized in that: described conductor is a silver-coated copper wire.

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