DE19922999A1 - High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics - Google Patents

High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics

Info

Publication number
DE19922999A1
DE19922999A1 DE1999122999 DE19922999A DE19922999A1 DE 19922999 A1 DE19922999 A1 DE 19922999A1 DE 1999122999 DE1999122999 DE 1999122999 DE 19922999 A DE19922999 A DE 19922999A DE 19922999 A1 DE19922999 A1 DE 19922999A1
Authority
DE
Germany
Prior art keywords
conductor
synthetics
restrict
expansion
signal transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE1999122999
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covidien Deutschland GmbH
Original Assignee
Kendall Medizinische Erzeugnisse GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kendall Medizinische Erzeugnisse GmbH filed Critical Kendall Medizinische Erzeugnisse GmbH
Priority to DE1999122999 priority Critical patent/DE19922999A1/en
Publication of DE19922999A1 publication Critical patent/DE19922999A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64

Abstract

The cable has a conductor (1) of a high impedance material and insulating sleeve (2) enclosing the conductor. A textile fibre (3) is embedded in the electrical conductor to restrict the expansion of the conductor. The conductor is made of carbon fibre, elastic conducting synthetics, inelastic conducting synthetics or other material with a resistance of 1-100 kOhm/m.

Description

Die Erfindung betrifft ein hochohmiges Kabel gemäß Oberbegriff des Patentanspruchs 1.The invention relates to a high-resistance cable according to the preamble of claim 1.

Bei der Signal- bzw. Datenübertragung, insbesondere bei der EKG-Ableitung werden Signale in Form von sich ändernden Span­ nungswerten mittels niederohmiger Leitungen, die wenige Ohm je Meter Kabel haben, vom Ort der Entstehung, also im Falle eines EKG's von der Elektrode zu der Auswerteeinheit, beispielsweise dem EKG-Monitor übermittelt.In signal or data transmission, especially in the ECG leads are signals in the form of changing span voltage values using low-resistance cables that are a few ohms each Have meters of cable, from the place of origin, in the case of a EKGs from the electrode to the evaluation unit, for example transmitted to the ECG monitor.

In einigen Fällen kann es aufgrund besondere Einflüsse, wie sie beim Kernspintomographen vorliegen, beispielsweise durch die extrem hohen Magnetfeldstärken mittels Induktion zu erhöh­ ten Strömen in diesen Datenleitungen und damit zu einer erhöh­ ten Wärmeentwicklung kommen, die den Patienten gefährdet.In some cases, it may be due to special influences, such as they are available with an MRI scanner, for example through to increase the extremely high magnetic field strengths by means of induction currents in these data lines and thus to an increased heat development that endangers the patient.

Aufgabe der Erfindung ist es, die Wärmeentwicklung in der­ artigen Kabeln zu reduzieren. The object of the invention is to develop heat in the to reduce like cables.  

Zur Lösung dieser Aufgabe dient ein Kabel mit den Merkmalen des Patentanspruchs 1.A cable with the features is used to solve this task of claim 1.

Die Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert.The invention will now be described with reference to a drawing explained.

Das in der Zeichnung dargestellte Kabel weist einen elektri­ schen Leiter 1 aus einem höherohmigen Material mit einem Widerstand von 1-100 kOhm je Meter auf. Als Material kommen beispielsweise Kohlefasern, elastische leitende Kunststoffe, nicht elastische leitende Kunststoffe o. ä. in Frage. Der Leiter 1 hat in einer Ausführungsform einen Außendurchmesser von 2,5 mm; er ist mit einem elektrisch insolierenden Mantel 2 aus einem termoplastischen Material umgeben, welches sich nicht mit dem Leitermaterial chemisch verbindet, um ein mög­ lichst einfaches Abisolieren des Mantels 2 zu gewährleisten. In einer Ausführungsform hat der Mantel eine Wandstärke von 0,2 mm, so daß der Außendurchmesser insgesamt 3,0 mm beträgt.The cable shown in the drawing has an electrical conductor 1's made of a higher-resistance material with a resistance of 1-100 kOhm per meter. For example, carbon fibers, elastic conductive plastics, non-elastic conductive plastics or the like are suitable as materials. In one embodiment, the conductor 1 has an outer diameter of 2.5 mm; it is surrounded by an electrically insulating jacket 2 made of a thermoplastic material which does not chemically bond with the conductor material in order to ensure that the jacket 2 is stripped as easily as possible. In one embodiment, the jacket has a wall thickness of 0.2 mm, so that the outer diameter is 3.0 mm.

In den Leiter 1 ist ein Textilfaden 3 eingebettet, und zwar vorzugsweise in der Achse des Leiters 1. Der Textilfaden 3 dient zur mechanischen Stabilisierung des Leiters 1, wobei er die Reißfestigkeit des als Leiter verwendeten Materials er­ höht. Außerdem dient der Textilfaden 3 zur Begrenzung der Dehnbarkeit bei der Verwendung eines elastischen Leiters.In the conductor 1, a textile yarn 3 is embedded, preferably in the axis of the conductor. 1 The textile thread 3 serves to mechanically stabilize the conductor 1 , increasing the tensile strength of the material used as the conductor. In addition, the textile thread 3 serves to limit the elasticity when using an elastic conductor.

Damit die Datenleitung eine möglichst hohe mechanische Stabi­ lität aufweist, ist das Material für den Mantel 2 so beschaf­ fen, daß dessen Zerreißfähigkeit (in N/mm2) wesentlich größer ist als die des verwendeten Leitermaterials, während die Bruchdehnung (in %) des Mantelmaterials wesentlich geringer ist, als die des Leitermaterials.So that the data line has the highest possible mechanical stability, the material for the sheath 2 is procured so that its tensile strength (in N / mm 2 ) is significantly greater than that of the conductor material used, while the elongation at break (in%) of the sheath material is significantly less than that of the conductor material.

Claims (3)

1. Hochohmiges Kabel zur Signalübermittlung, mit einem Leiter (1) aus einem höherohmigen Material und einem den Leiter (1) umgebenden isolierenden Mantel (2), dadurch gekennzeichnet, daß in den Leiter (1) ein Textilfaden (3) zur Begrenzung der Dehnfähigkeit des elastischen Leiters (1) eingebettet ist.1. High-resistance cable for signal transmission, with a conductor ( 1 ) made of a higher-resistance material and an insulating jacket ( 2 ) surrounding the conductor ( 1 ), characterized in that in the conductor ( 1 ) a textile thread ( 3 ) to limit the elasticity of the elastic conductor ( 1 ) is embedded. 2. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß der Leiter (1) aus Kohlefasern, elastisch-leitenden Kunst­ stoffen, nicht elastischen leitenden Kunststoffen o. ä. mit einem Widerstand von 1-100 kOhm/m besteht.2. Cable according to claim 1, characterized in that the conductor ( 1 ) made of carbon fibers, elastically conductive plastics, non-elastic conductive plastics or the like with a resistance of 1-100 kOhm / m. 3. Kabel nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Textilfaden (3) in der Mitte des Leiters (1) angeordnet ist.3. Cable according to claim 1 or 2, characterized in that the textile thread ( 3 ) in the middle of the conductor ( 1 ) is arranged.
DE1999122999 1999-05-12 1999-05-12 High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics Ceased DE19922999A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999122999 DE19922999A1 (en) 1999-05-12 1999-05-12 High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999122999 DE19922999A1 (en) 1999-05-12 1999-05-12 High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics

Publications (1)

Publication Number Publication Date
DE19922999A1 true DE19922999A1 (en) 2000-11-23

Family

ID=7908535

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999122999 Ceased DE19922999A1 (en) 1999-05-12 1999-05-12 High impedance cable for signal transmission has textile fibre embedded in electrical conductor to restrict its expansion; conductor is made e.g. of carbon fibre, elastic conducting synthetics

Country Status (1)

Country Link
DE (1) DE19922999A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001097688A1 (en) * 2000-06-21 2001-12-27 Instrumentarium Corporation Conductor
EP1488738A1 (en) 2003-06-19 2004-12-22 Instrumentarium Corporation Patient cable for medical measurements
WO2005053555A1 (en) * 2003-12-01 2005-06-16 Biotronik Crm Patent Ag Electrode catheter for the electrotherapy of cardiac tissue
NL2005375C2 (en) * 2009-09-23 2011-03-28 Gen Electric System and method for magnetic resonance coil actuation.
EP2799007A1 (en) * 2008-07-18 2014-11-05 Flexcon Company, Inc. High impedance signal detection systems and methods for use in electrocariogram detection systems
US9788743B2 (en) 2008-08-06 2017-10-17 Flexcon Company, Inc. Methods for using a multiple electrode composite system in electrocardiogram detection systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637472A1 (en) * 1996-09-13 1998-03-26 Schnier Elektrostatik Gmbh Vibration-free damped high-voltage cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637472A1 (en) * 1996-09-13 1998-03-26 Schnier Elektrostatik Gmbh Vibration-free damped high-voltage cable

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001097688A1 (en) * 2000-06-21 2001-12-27 Instrumentarium Corporation Conductor
US7272427B2 (en) 2000-06-21 2007-09-18 Ge Healthcare Finland Oy Conductor
EP1488738A1 (en) 2003-06-19 2004-12-22 Instrumentarium Corporation Patient cable for medical measurements
US7294785B2 (en) 2003-06-19 2007-11-13 Ge Healthcare Finland Oy Patient cable for medical measurements
WO2005053555A1 (en) * 2003-12-01 2005-06-16 Biotronik Crm Patent Ag Electrode catheter for the electrotherapy of cardiac tissue
EP2799007A1 (en) * 2008-07-18 2014-11-05 Flexcon Company, Inc. High impedance signal detection systems and methods for use in electrocariogram detection systems
US9833160B2 (en) 2008-07-18 2017-12-05 Flexcon Company, Inc. High impedance signal detection systems and methods for use in electrocardiogram detection systems
US9788743B2 (en) 2008-08-06 2017-10-17 Flexcon Company, Inc. Methods for using a multiple electrode composite system in electrocardiogram detection systems
NL2005375C2 (en) * 2009-09-23 2011-03-28 Gen Electric System and method for magnetic resonance coil actuation.
US8198895B2 (en) 2009-09-23 2012-06-12 General Electric Company System and method for magnetic resonance coil actuation

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