Methods and apparatus for fabricating leads with conductors...

Details Methods and apparatus for fabricating leads with conductors... Methods and apparatus for fabricating leads with conductors...

A - Human Necessities

61

N

A61N 1/05 (2006.01) A61N 1/16 (2006.01) B29C 33/12 (2006.01) B29C 39/18 (2006.01) G01N 3/32 (2006.01) H01B 7/04 (2006.01) A61N 1/37 (2006.01)

Patent

CA 2679498

MRI/RF compatible leads include at least one conductor, a respective conductor having at least one segment with a multi-layer stacked coil configuration. The lead can be configured so that the lead heats local tissue less than about 10 degrees Celsius (typically about 5 degrees Celsius or less) or does not heat local tissue when a patient is exposed to target RF frequencies at a peak input SAR of at least about 4 W/kg and/or a whole body average SAR of at least about 2W/kg. Related leads and methods of fabricating leads are also described.

L'invention concerne des fils compatibles MRI/MF comprenant au moins un conducteur, chacun des conducteurs comportant au moins un segment présentant une configuration de bobine multicouche empilée. Le fil peut être conçu pour chauffer un tissu local à moins d'environ 10 degrés Celsius (de manière typique environ 5 degrés Celsius ou moins) ou ne pas chauffer un tissu local lorsque le patient est exposé à des fréquences RF cibles à un SAR d'entrée de pic d'au moins environ 4 W/kg et/ou un SAR moyen de corps complet d'au moins environ 2 W/kg. Des fils concernés et des procédés de fabrication de fils sont également décrits.

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