KR20160104547A - Medical purpose cable, and method of manufacturing the same - Google Patents

Abstract

The present invention provides a medical cable and a method to manufacture the same, which are able to reduce the stickiness of a jacket made from silicon rubber and to improve operability and storage. The present invention provides a medical cable (100), comprising: a cable core (101); a jacket (102) formed around the cable core (101); and a protective film (103) formed around the jacket (102). The jacket (102) is made from silicon rubber. The protective film (103) is formed by spreading and baking a mixture solution, which is made by dissolving or dispersing fluorine oil and silicon oil in a solvent, around the jacket (102). The present invention also provides a method to manufacture the medical cable (100), comprising a step of spreading and baking a mixture solution, which is made by dissolving or dispersing fluorine oil and silicon oil in a solvent, around the jacket (102) and forming the protective film (103).

Description

[0001] MEDICAL PURPOSE CABLE AND METHOD OF MANUFACTURING THE SAME [0002]

The present invention relates to a medical cable having a jacket made of silicone rubber and a method of manufacturing the same.

In a medical cable represented by a probe cable for connecting a main body of an ultrasonic diagnostic apparatus with a probe and an endoscope cable used for a surgical operation, A jacket made of rubber is employed.

Since the silicone rubber is a biocompatible material, the use of a jacket made of silicone rubber makes it possible to realize a medical cable that can be suitably applied to surgical applications and gynecological applications.

Further, since silicone rubber has high water and oil repellency and anti-contamination property, it can be easily cleaned and removed even if blood or other contamination adheres to the jacket by adopting a jacket made of silicone rubber.

In addition, silicone rubber has high chemical resistance and heat resistance to alcohol and other disinfectants, and sterilization treatment such as plasma sterilization or autoclave sterilization is performed It is suitable for a medical purpose in which disinfection and sterilization treatment are frequently performed because there is little deterioration.

: Japanese Patent Application Laid-Open No. 10-116520

However, the silicone rubber has stickiness on the surface, and the medical cable in which the jacket made of silicone rubber is adopted has a problem that the operability and the storage property are poor because the sticking of the sticking is difficult when used or stored.

It is therefore an object of the present invention to provide a medical cable capable of improving operability and retractability by reducing the sticking of a jacket made of silicone rubber and a manufacturing method thereof.

According to an aspect of the present invention, there is provided a cable connector comprising: a cable core; a jacket formed around the cable core; and a protection film formed around the jacket, wherein the jacket is made of silicone rubber, Is a medical cable that is a resin layer in which a fluororesin and a silicone resin are mixed.

The protective film preferably has a thickness of 10 占 퐉 or more and 50 占 퐉 or less.

The protective film is preferably baked at a temperature lower than the rated temperature of the jacket.

Further, the present invention is a method for producing a medical cable, which comprises a step of forming a protective film by applying and baking a solvent formed by dissolving or dispersing a fluororesin and a silicone resin around a jacket.

According to the present invention, it is possible to provide a medical cable capable of improving operability and retractability by reducing the sticking of a jacket made of silicone rubber, and a method of manufacturing the same.

1 is a cross-sectional view showing a medical cable according to the present invention.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1, a medical cable 100 according to a preferred embodiment of the present invention includes a probe cable for connecting a main body of an ultrasonic diagnostic apparatus with a probe, A cable core 101, a jacket 102 formed around the cable core 101, and a protective film 103 formed around the jacket 102 have.

The cable core 101 includes a core insert 104 (tension member), a plurality of cable units 105 that are twisted about the center insert 104, (Braided shield) 106 formed around the periphery of the base 105.

The core inserts 104 are arranged such that a plurality of cable units 105 are twisted in a state of being arranged concentrically in the cable cross section so that the symmetry of the cable core 101 is maintained to disperse the external force To improve the bending resistance, twisting resistance and flexibility of the cable core 101 so that the cable core 101 can be made compact.

The core insert 104 may be made of polyamide fibers such as aramid or polyethylene terephthalate in order to improve the resistance to tension applied to the cable in the longitudinal direction (polyester-based fiber) such as polyethylene terephthalate and polyethyleneterephthalate (anti-tensile fiber).

The cable unit 105 is a power supply unit (not shown) formed by assembling a signal transmission unit 108 and a plurality of insulation cables 109 formed by collecting a plurality of coaxial cables 107 110).

A press tape (bind tape) 111 is wrapped around the cable units 105 so that a plurality of cable units 105 are held in a twisted shape that is arranged in a concentric circle on the end surface of the cable have.

The jacket 102 is made of silicone rubber and has biocompatibility, water and oil repellency, contamination resistance, and chemical resistance as described above.

The protective film 103 is made of a resin layer (resin layer) in which a fluororesin and a silicone resin are mixed, and the thickness thereof is about 10 μm or more and 50 μm or less.

More specifically, for example, a volatile organic solvent which volatilizes at a temperature lower than the rated temperature of the jacket 102 is used, and a fluorine oil in which a fluorine resin is dissolved and a silicone oil in which a silicone resin is dissolved And then baked at a temperature lower than the rated temperature of the jacket 102 (for example, 40 ° C or more and 80 ° C or less) to prepare a mixed liquid, which is then applied to the periphery of the jacket 102, The fluorine silicon film mixed with the fluororesin and the silicone resin is fixed to the micro rough surface (roughened surface) inevitably present on the surface of the jacket 102 to form a very thin protective film 103, (100) can be produced.

When a volatile organic solvent is used as a volatile organic solvent which is volatilized at room temperature, the mixture is applied to the periphery of the jacket 102, followed by natural drying to volatilize the volatile organic solvent contained in the mixed liquid. The protective film 103 can be formed around the protective film 103.

In the medical chart, however, since it is necessary to frequently clean the surface of the medical cable 100 in order to remove the blood or other contamination adhering to the surface of the medical cable 100, the protective film 103 ) Is easily peeled off.

In this respect, in the medical cable 100, since the protective film 103 is formed by baking at a temperature lower than the rated temperature of the jacket 102, as compared with the case where the protective film 103 is formed by only natural drying, The fluorine silicon film is more firmly fixed on the surface of the protective film 102, so that it is harder to peel off the protective film 103, and a protective film 103 which can withstand frequent cleaning can be obtained.

Since the fluorine component contributes to the impartation of activity (slipperiness) and abrasion resistance, by employing the protective film 103 containing a fluorine component, the medical cable 100 is imparted with activity and abrasion resistance, The operability and the retractability of the medical cable 100 can be improved by reducing the sticking of the jacket 102.

From the viewpoint of imparting the activity and wear resistance to the medical cable 100, it is also conceivable to form a protective layer by extrusion-coating a fluorine resin around the jacket 102. However, the fluorine resin has hardness And it is difficult to form a thin protective layer by the extrusion coating. Therefore, if the protective layer is formed by extrusion coating, the flexibility and flexibility of the medical cable 100 are lowered.

In addition, since the fluororesin has a low adhesion, the protective layer can not be brought into close contact with the jacket 102 even if the protective layer is formed by extrusion coating, so that a gap is generated at the interface between the jacket 102 and the protective layer, Which may cause cracks or the like to be damaged, may occur.

On the other hand, in the medical cable 100, since the fluorine silicon film is fixed on the fine roughened surface inevitably present on the surface of the jacket 102 as described above and the very thin protective film 103 is formed, the medical cable 100 It is possible to impart the activity and wear resistance to the medical cable 100 without deteriorating the flexibility and flexibility of the medical cable 100.

The protective film 103 can be brought into close contact with the jacket 102 so that even if the blood or other contaminants attached to the surface of the medical cable 100 are frequently cleaned and removed, It is possible to suppress the generation of gaps in the interface between the jacket 102 and the protective film 103 and the occurrence of expansion of the external appearance which causes damage to the protective film 103 such as cracks.

Further, since the fluorine resin has a high melting point, when the protective layer is formed by extrusion coating, the jacket 102 is exposed to a high temperature of 250 DEG C or more and is thermally deteriorated (heat deteriorated) The various characteristics of the medical cable 100 may be deteriorated.

On the other hand, in the medical cable 100, after the mixed liquid is applied to the periphery of the jacket 102 as described above, baking is performed at a temperature lower than the rated temperature of the jacket 102 to volatilize the solvent contained in the mixed liquid, It is possible to prevent the deterioration of various characteristics of the medical cable 100 because the jacket 102 is exposed to a high temperature of 250 DEG C or more and is not thermally deteriorated.

Since the thickness of the protective film 103 is not less than 10 占 퐉 and not more than 50 占 퐉 and more preferably not less than 30 占 퐉 and not more than 40 占 퐉, the medical cable 100 can be provided with the activity and wear resistance without significantly increasing the outer diameter of the medical cable 100 . The mixing ratio of the fluorine resin to the silicone resin in the protective film 103 is preferably in the range of 8: 2 to 5: 5, and particularly preferably 7: 3. In order to obtain the mixing ratio, the mixing ratio of the fluorine oil in which the fluororesin is dissolved and the silicone oil in which the silicone resin is dissolved may be adjusted.

As described above, according to the present invention, it is possible to provide a medical cable capable of improving operability and retractability by reducing the sticking of a jacket made of silicone rubber, and a manufacturing method thereof.

100: medical cable
101: Cable core
102: Jacket
103: Shield
104: center insert
105: Cable unit
106: Braided shield
107: Coaxial cable
108: Unit for signal transmission
109: Insulated cable
110: Power supply unit
111: pressure tape

Claims (4)

A cable core,
A jacket formed around the cable core,
A protective film (protective film) formed around the jacket
Respectively,
The jacket is made of silicone rubber,
Wherein the protective film is a resin layer (resin layer) in which a fluororesin and a silicone resin are mixed.
The method according to claim 1,
Wherein the protective film has a thickness of 10 占 퐉 or more and 50 占 퐉 or less.
3. The method according to claim 1 or 2,
Wherein the protective film is baked at a temperature lower than the rated temperature of the jacket.
And a step of forming a protective film by coating / baking a solvent formed by dissolving or dispersing a fluororesin and a silicone resin around the jacket.

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