Implantable electrical line

Patent metadata

Field	Value
Publication number	US-9517335-B2
Application number	US-201514804154-A
Country	US
Kind code	B2
Filing date	Jul 20, 2015
Priority date	Aug 13, 2014
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

An implantable electrical line including a lead, wherein the lead includes at least one helically wound electrical conductor. The at least one helically wound electrical conductor is surrounded by a fiber braid, which is formed by at least two fibers or fiber bundles, and wherein the at least two fibers or fiber bundles are interwoven and wound around the electrical conductor in opposite winding directions.

First claim

What is claimed is:

1. An implantable electrical line comprising:
a lead or a lead segment, wherein said lead or said lead segment comprises at least one helically wound electrical conductor,
wherein the at least one helically wound electrical conductor is surrounded by a fiber braid comprising at least two fibers or fiber bundles,
wherein the at least two fibers or fiber bundles are interwoven and are wound around the at least one helically wound electrical conductor in opposite winding directions,
wherein the at least one helically wound electrical conductor and the fiber braid form one or more a inductors and capacitors, and
wherein the one or more of inductors and capacitors forms a filter that blocks at frequencies of electromagnetic fields prevailing in magnetic resonance imaging (MRI) scanners.

2. The implantable electrical line as claimed in claim 1 , wherein the at least one helically wound electrical conductor forms a coil comprising two longitudinal ends, wherein the coil is electrically conductively and mechanically connected at one end of the two longitudinal ends end to an electrically conductive sleeve or at each end of the two longitudinal ends to an electrically conductive sleeve, and wherein the at least two fibers or fiber bundles are connected to one or more of the electrically conductive sleeve at the one end and the electrically conductive sleeves at the each end of the two longitudinal ends.

3. The implantable electrical line as claimed in claim 2 , wherein at least one of the electrically conductive sleeves forms a capacitor with a coil sleeve, wherein the coil sleeve is concentric with the at least one electrically conductive sleeve and wherein the coil sleeve is electrically insulated from the electrically conductive sleeve or the electrically conductive sleeves by a dielectric.

4. The implantable electrical line as claimed in claim 1 , wherein the at least one helically wound electrical conductor comprises a wire comprising one or more of Pt, Pt/Ir, MP35N, elgiloy, high-grade steel, copper, molybdenum, tantalum, gold, zirconium, iron-containing alloys, tantalum/tungsten alloys, refractory metals comprising niobium or titanium, silver, palladium, conductive polymers, polycondensates and combinations thereof in a sheath-core wire.

5. The implantable electrical line as claimed in claim 1 , wherein the at least two fibers or fiber bundles comprise one or more metals or plastics comprising one or more of Pt, Pt/Ir, MP35N, elgiloy, high-grade steel, copper, molybdenum, tantalum, copper, gold, zirconium, iron-containing alloys, silver, combinations thereof in a sheath-core wire, polyetheretherketon (PEEK), polyamide, polyurethane, carbon fibers, polyethylene, polyimide, aramid, polytetafluoroehtylene (PTFE), ethylenetetafluoroethylene (ETFE), spider silk fabrics, spider silk fibers, and artificial spider silk.

6. The implantable electrical line as claimed in claim 1 , wherein the at least one helically wound electrical conductor is insulated by a coating.

7. The implantable electrical line as claimed in claim 1 , wherein the at least two fibers or fiber bundles are insulated by a coating.

8. The implantable electrical line as claimed in claim 1 , further comprising insulation between the at least one helically wound electrical conductor and the at least two fibers or fiber bundles.

9. The implantable electrical line as claimed in claim 1 , wherein the fiber braid comprises electrically non-conductive fibers comprising plastic, and further comprises electrically conductive fibers comprising metal.

10. The implantable electrical line as claimed in claim 1 , wherein the lead or the lead segment further comprises a single portion.

11. The implantable electrical line as claimed in claim 1 , wherein the implantable electrical line is one or more of a cardiac pacemaker and a defibrillator electrode line, and further comprises one or more electrode poles electrically connected to the lead or the lead segment.

12. An implantable electrical line comprising:
a lead or a lead segment, wherein said lead or said lead segment comprises at least one helically wound electrical conductor,
wherein the at least one helically wound electrical conductor is surrounded by a fiber braid comprising at least two fibers or fiber bundles, and
wherein the at least two fibers or fiber bundles are interwoven and are wound around the at least one helically wound electrical conductor in opposite winding directions,
wherein the at least one helically wound electrical conductor forms a coil comprising two longitudinal ends,
wherein the coil is electrically conductively and mechanically connected at one end of the two longitudinal ends end to an electrically conductive sleeve or at each end of the two longitudinal ends to an electrically conductive sleeve,
wherein the at least two fibers or fiber bundles are connected to one or more of the electrically conductive sleeve at the one end and the electrically conductive sleeves at the each end of the two longitudinal ends,
wherein at least one of the electrically conductive sleeves forms a capacitor with a coil sleeve, wherein the coil sleeve is concentric with the at least one electrically conductive sleeve, and
wherein the coil sleeve is electrically insulated from the electrically conductive sleeve or the electrically conductive sleeves by a dielectric.

Assignees

• Biotronik Se & Co Kg

Inventors

• Friedrich Michael
• Kolberg Gernot
• Frenzel Timo

Classifications

• H01B3/47

  fibre-reinforced plastics, e.g. glass-reinforced plastics · CPC title

• A61N1/362

  Heart stimulators (heart defibrillators A61N1/39) · CPC title

• A61N1/086

  Magnetic resonance imaging [MRI] compatible leads · CPC title

• A61N1/056 Primary

  Transvascular endocardial electrode systems · CPC title

• A61N1/3968

  Constructional arrangements, e.g. casings (A61N1/375 takes precedence) · CPC title