CN1889196A - Medical ion-chamber cable - Google Patents

Medical ion-chamber cable Download PDF

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Publication number
CN1889196A
CN1889196A CN 200610083983 CN200610083983A CN1889196A CN 1889196 A CN1889196 A CN 1889196A CN 200610083983 CN200610083983 CN 200610083983 CN 200610083983 A CN200610083983 A CN 200610083983A CN 1889196 A CN1889196 A CN 1889196A
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electric field
shielding layer
thickness
silver
medical ion
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CN 200610083983
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CN100466110C (en
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高思义
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Abstract

This invention relates to a kind of medical ion chamber cable, ento-ectad including a inner conductor, a high megohm resistance insulating layer, a plumbago layer, the first shielding layer preventing electromagnetic field interfering, a PVC inner protective layer, a polyester layer, the second shielding layer preventing electromagnetic field interfering, an outer protective layer preventing fire. The feature of the inner conductor is that it is made up of a nickel-copper silvering wire. The advantage of the invention is that the high-density, optimized and multi-layer shielding structure not only prevents electromagnetic field interfering effectively, but improves the effect of the medical ion chamber measuring low-activity radial source in the short range.

Description

A kind of medical ion-chamber cable
Technical field
The present invention relates to transmission cable, specifically relate to the double-deck high shielded type cable of a kind of medical ion-chamber.
Background technology
In ionization chamber is measured, during particularly well-type ionization chamber is measured, because the particle source weak output signal that ionising radiation produces, in order to detect these signals faint, the low-activity radioactive source, require the stube cable of instrument cubicle in the ionization chamber measurement that excellent anti-external interference ability is arranged, make shield effectiveness reach best.Its outer conductor of existing shielded type cable shields the screen that has copper wire to be woven into usually, or is made up of whole copper pipe, can not satisfy the requirement that ionization chamber is measured plesioradiotherapy dosage fully during actual the use.
Summary of the invention
Purpose of the present invention will overcome defective of the prior art and deficiency exactly, and a kind of double-deck high shielded type cable with excellent anti interference performance is provided.
For achieving the above object, the basic design of technical scheme provided by the present invention is as follows:
A kind of medical ion-chamber cable, comprise inner wire, its special character is: inner wire is made of a silver-plated steel wire of copper facing, coats high resistant insulating barrier, equadag coating, the first anti-electromagnetism electric field interference shielding layer, PVC polyvinyl chloride sheath, polyester band, second anti-electromagnetism electromagnetism electric field interference shielding layer, the polyester band from the inner wire periphery from inside to outside successively, extrudes fire-retardant outer jacket.
The round tube shape that described first anti-electromagnetism electric field interference shielding layer 4, the second anti-electromagnetism electric field interference shielding layer 7 forms for the silver-gilt copper wire mesh grid.
The thickness of the described first anti-electromagnetism electric field interference shielding layer 4 is: 0.07mm~0.086mm; The thickness of the described second anti-electromagnetism electric field interference shielding layer 7 is: 0.092mm~0.12mm.
The diameter of the silver-gilt copper wire of the described first anti-electromagnetism electric field interference shielding layer 4 is 0.07mm~0.086mm, the diameter of the silver-gilt copper wire of the second anti-electromagnetism electric field interference shielding layer 7 is 0.07mm~0.12mm, and screen 4, screen 7 counts are: 95%~99%.
Described inner wire 1 external diameter is 0.28mm~0.32mm.
The round tube shape that described high resistant insulating barrier 2 is made for the F4 polytetrafluoroethylmaterial material.
The external diameter of described high resistant insulating barrier 2 is: 0.9mm~1.02mm.
Described equadag coating 3 is a round tube shape, and its thickness is: 0.03mm~0.04mm.
Describedly extrude the round tube shape that fire-retardant outer jacket 9 is made for flexibility polyvinyl chloride material.
Concrete technical scheme is as follows:
Described inner wire 1 external diameter is: 0.28mm~0.32mm, and effect was best when external diameter was 0.30mm, and inner wire 1 is made of a silver-plated steel wire of copper facing.The round tube shape that described high resistant insulating barrier 2 is made for the F4 polytetrafluoroethylmaterial material, its external diameter is: 0.9mm~1.02mm, wherein external diameter is: the effect of 1.0mm is best; It plays insulating effect, prevents electric leakage.The thickness of described equadag coating 3 is: 0.03mm~0.04mm; Has the semiconductive effect, effectively received signal.The thickness of the described first anti-electric field electromagnetic interference shield layer 4 is: 0.07mm~0.086mm, and wherein thickness is: 0.08mm~0.086mm effect is best; The thickness of the second anti-electromagnetism electric field interference shielding layer 7 is: 0.092mm~0.12mm; Two-layer screen is the round tube shape that the silver-gilt copper wire mesh grid forms, and it weaves compact, and is not slack and undisciplined, and is evenly distributed, and count is: 95%~99%, and wherein density is: 99% effect is best; And the diameter of every copper wire is in the first anti-electromagnetism electric field interference shielding layer: 0.07mm~0.086mm, diameter is: effect is best during 0.08mm, the diameter of every copper wire is in the second anti-electromagnetism electric field interference shielding layer: 0.07mm~0.12mm, and diameter is: effect is best during 0.10mm; Form the double shield silver-gilt copper wire braid that two-layer high density distributes rationally like this and effectively prevent the interference that external electromagnetic, electric field change cause.The thickness of described PVC polyvinyl chloride sheath 5 is 0.25mm~0.35mm; Prevent the mutual interference mutually of the first anti-electromagnetism electric field interference shielding layer and the second anti-electromagnetism electric field interference shielding layer, prevent electric leakage, play insulation, buffer action.The thickness of described polyester band 6, polyester band 8 is: 0.035mm~0.045mm, and wherein thickness is: the effect of 0.04mm is best; Its dielectric property are good, strengthened the effect of insulation.Describedly extruding fire-retardant outer jacket 9, is the round tube shape that flexibility polyvinyl chloride material constitutes; Can be effectively anticorrosion, waterproof, insulation, fire-retardant, anti-aging, wear-resisting, weather, and have flexibility and stronger toughness, be fit to regular removal cable.Total external diameter of cable is no more than 3.3mm.
Compare with existing cable, the present invention has the following advantages:
1, the present invention is because the double shield silver-gilt copper wire braid that has adopted two-layer high density to distribute rationally effectively prevents the interference that external electromagnetic, electric field change cause; The braiding compactness of silver-gilt copper wire, not slack and undisciplined, and be evenly distributed, count is 95%~99%, wherein density is: 99% interference free performance is the most excellent.
2, the present invention prevents electric leakage because the round tube shape that the high resistant insulating barrier that adopts is made for the F4 polytetrafluoroethylmaterial material plays insulating effect.
3, the present invention is owing to adopt the equadag coating with semiconductive effect, effectively received signal.
4, the present invention prevents electric leakage because the PVC polyvinyl chloride sheath that adopts prevents the mutual interference mutually of the first anti-electromagnetism electric field interference shielding layer and the second anti-electromagnetism electric field interference shielding layer, plays insulation, buffer action; And the polyester band dielectric property that adopt are good, the effect that strengthened insulation.
5, the present invention since adopt extrude fire-retardant outer jacket, the round tube shape of making for flexibility polyvinyl chloride material can effectively anticorrosion, fire-retardant, anti-aging, weather, and has flexibility and stronger toughness, is fit to regular removal cable.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a schematic cross-section of the present invention.
Among the figure: 1, inner wire; 2, high resistant insulating barrier; 3, equadag coating; 4, the first anti-electromagnetism electric field interference shielding layer; 5, PVC polyvinyl chloride sheath; 6, polyester band; 7, the second anti-electromagnetism electric field interference shielding layer; 8, polyester band; 9, extrude fire-retardant outer jacket.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.28mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 0.9mm; Thickness is: the equadag coating 3 of 0.03mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.07mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.07mm, count is: 95%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.25mm; Thickness is: the polyester band 6 of 0.035mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.092mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.07mm, count is: 95%; Thickness is: the polyester band 8 of 0.035mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.4mm constitutes extrude fire-retardant outer jacket 9.
Embodiment 2:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.32mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 1.02mm; Thickness is: the equadag coating 3 of 0.04mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.086mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.086mm, count is: 99%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.35mm; Thickness is: the polyester band 6 of 0.045mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.12mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.12mm, count is: 99%; Thickness is: the polyester band 8 of 0.045mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.3mm constitutes extrude fire-retardant outer jacket 9.
Embodiment 3:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.28mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 1.0mm; Thickness is: the equadag coating 3 of 0.03mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.08mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.08mm, count is: 99%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.25mm; Thickness is: the polyester band 6 of 0.04mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.10mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.10mm, count is: 99%; Thickness is: the polyester band 8 of 0.04mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.4mm constitutes extrude fire-retardant outer jacket 9.
Embodiment 4:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.32mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 1.0mm; Thickness is: the equadag coating 3 of 0.04mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.085mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.08mm, count is: 99%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.35mm; Thickness is: the polyester band 6 of 0.04mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.12mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.10mm, count is: 99%; Thickness is: the polyester band 8 of 0.04mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.3mm constitutes extrude fire-retardant outer jacket 9.
Embodiment 5:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.29mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 0.95mm; Thickness is: the equadag coating 3 of 0.032mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.078mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.076mm, count is: 96%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.29mm; Thickness is: the polyester band 6 of 0.038mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.098mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.09mm, count is: 96%; Thickness is: the polyester band 8 of 0.038mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.4mm constitutes extrude fire-retardant outer jacket 9.
Embodiment 6:
As shown in Figure 1 and Figure 2, the present invention is a kind of medical ion-chamber cable, comprise inner wire, its special character is: the silver-plated steel wire of copper facing that is 0.30mm with an external diameter is an inner wire 1, coats successively from inside to outside from inner wire 1 periphery: external diameter is the high resistant insulating barrier 2 of the round tube shape of being made by the F4 polytetrafluoroethylmaterial material of 1.01mm; Thickness is: the equadag coating 3 of 0.038mm; Thickness is: the first anti-electric field electromagnetic interference shield layer 4 of the round tube shape that the silver-gilt copper wire mesh grid of 0.084mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.083mm, count is: 98%; Thickness is the PVC polyvinyl chloride sheath 5 of 0.32mm; Thickness is: the polyester band 6 of 0.042mm; Thickness is: the second anti-electric field electromagnetic interference shield layer 7 of the round tube shape that the silver-gilt copper wire braiding of 0.11mm forms, and wherein the diameter of every silver-gilt copper wire is: 0.11mm, count is: 98%; Thickness is: the polyester band 8 of 0.042mm; Thickness is: the round tube shape that the flexibility polyvinyl chloride material of 0.4mm constitutes extrude fire-retardant outer jacket 9.
Generally speaking, high density optimum organization multilayer screen structure of the present invention not only effectively prevents the interference that external electromagnetic, electric field change cause, improves the effect of medical ion-chamber close-in measurement low-activity radioactive source.

Claims (9)

1, a kind of medical ion-chamber cable, comprise inner wire, it is characterized in that: described inner wire (1) is made of a silver-plated steel wire of copper facing, is coated with high resistant insulating barrier (2), equadag coating (3), the first anti-electromagnetism electric field interference shielding layer (4), PVC polyvinyl chloride sheath (5), polyester band (6), second anti-electromagnetism electric field interference shielding layer (7), the polyester band (8) from inner wire (1) periphery from inside to outside successively, extrudes fire-retardant outer jacket (9).
2, medical ion-chamber cable according to claim 1 is characterized in that: the round tube shape that the described first anti-electromagnetism electric field interference shielding layer (4), the second anti-electromagnetism electric field interference shielding layer (7) form for the silver-gilt copper wire mesh grid.
3, medical ion-chamber cable according to claim 1 and 2 is characterized in that: the thickness of the described first anti-electromagnetism electric field interference shielding layer (4) is: 0.07mm~0.086mm; The thickness of the described second anti-electromagnetism electric field interference shielding layer (7) is: 0.092mm~0.12mm.
4, medical ion-chamber cable according to claim 1 and 2, it is characterized in that: the diameter of the silver-gilt copper wire of the described first anti-electromagnetism electric field interference shielding layer (4) is 0.07mm~0.086mm, the diameter of the silver-gilt copper wire of the second anti-electromagnetism electric field interference shielding layer (7) is 0.07mm~0.12mm, and screen (4), screen (7) count are: 95%~99%.
5, medical ion-chamber cable according to claim 1 is characterized in that: described inner wire (1) external diameter is 0.28mm~0.32mm.
6, medical ion-chamber cable according to claim 1 is characterized in that: the round tube shape that described high resistant insulating barrier (2) is made for the F4 polytetrafluoroethylmaterial material.
7, according to claim 1 or 6 described medical ion-chamber cables, it is characterized in that: the external diameter of described high resistant insulating barrier (2) is: 0.9mm~1.02mm.
8, medical ion-chamber cable according to claim 1 is characterized in that: described equadag coating (3) is a round tube shape, and its thickness is: 0.03mm~0.04mm.
9, medical ion-chamber cable according to claim 1 is characterized in that: describedly extrude the round tube shape that fire-retardant outer jacket (9) is made for flexibility polyvinyl chloride material.
CNB2006100839835A 2006-06-16 2006-06-16 Medical ion-chamber cable Expired - Fee Related CN100466110C (en)

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CNB2006100839835A CN100466110C (en) 2006-06-16 2006-06-16 Medical ion-chamber cable

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Application Number Priority Date Filing Date Title
CNB2006100839835A CN100466110C (en) 2006-06-16 2006-06-16 Medical ion-chamber cable

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CN1889196A true CN1889196A (en) 2007-01-03
CN100466110C CN100466110C (en) 2009-03-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102280177A (en) * 2011-05-23 2011-12-14 天津六○九电缆有限公司 Special type low-noise cable for sensor
CN104956450A (en) * 2013-01-29 2015-09-30 泰科电子公司 Cable having a sparse shield
US9991023B2 (en) 2013-01-29 2018-06-05 Creganna Unlimited Company Interconnect cable having insulated wires with a conductive coating
CN109036655A (en) * 2018-07-31 2018-12-18 山东华凌电缆有限公司 A kind of oil resistant resist bending cable for robot arm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947082A1 (en) * 1979-11-22 1981-05-27 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Cable screen corrosion prevention - uses jelly filling around screen wires which exudes if sheath fracture occurs
US4595792A (en) * 1983-04-01 1986-06-17 The United States Of America As Represented By The Secretary Of The Navy Method for detecting faults in a synthetic electro-mechanical cable
US5194838A (en) * 1991-11-26 1993-03-16 W. L. Gore & Associates, Inc. Low-torque microwave coaxial cable with graphite disposed between shielding layers
US6514608B1 (en) * 1998-07-10 2003-02-04 Pirelli Cable Corporation Semiconductive jacket for cable and cable jacketed therewith
CN2664126Y (en) * 2003-11-27 2004-12-15 李基生 A novel video transmission cable

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102280177A (en) * 2011-05-23 2011-12-14 天津六○九电缆有限公司 Special type low-noise cable for sensor
CN102280177B (en) * 2011-05-23 2012-11-21 天津六0九电缆有限公司 Special type low-noise cable for sensor
CN104956450A (en) * 2013-01-29 2015-09-30 泰科电子公司 Cable having a sparse shield
CN104956450B (en) * 2013-01-29 2017-11-14 泰连公司 Cable with sparse radome
US9991023B2 (en) 2013-01-29 2018-06-05 Creganna Unlimited Company Interconnect cable having insulated wires with a conductive coating
US10037834B2 (en) 2013-01-29 2018-07-31 Creganna Unlimited Company Cable having a sparse shield
CN109036655A (en) * 2018-07-31 2018-12-18 山东华凌电缆有限公司 A kind of oil resistant resist bending cable for robot arm

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