Magnetic resonance imaging interference immune device
First Claim
Patent Images
1. A medical assembly, comprising:
- a multi-wire lead having a plurality of coiling loops;
said multi-wire lead having a gap region and a non-gap region;
said gap region having adjacent coiling loops of said multi-wire lead with gaps therebetween;
said non-gap region having adjacent coiling loops of said multi-wire lead with no gaps therebetween.
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Abstract
A medical assembly includes a multi-wire lead having a plurality of coiling loops. The multi-wire lead has a gap region and a non-gap region. The gap region has adjacent coiling loops of the multi-wire lead with gaps therebetween so as to form different impedance in the gap region than impedance in the non-gap region. The non-gap region has adjacent coiling loops of the multi-wire lead with no gaps therebetween. The gaps may provide inter-loop capacitance. The multi-wire lead may have a plurality of gap regions, each gap region having a non-gap region therebetween.
175 Citations
29 Claims
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1. A medical assembly, comprising:
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a multi-wire lead having a plurality of coiling loops;
said multi-wire lead having a gap region and a non-gap region;
said gap region having adjacent coiling loops of said multi-wire lead with gaps therebetween;
said non-gap region having adjacent coiling loops of said multi-wire lead with no gaps therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 22)
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9. A medical assembly, comprising:
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a multi-wire lead having a plurality of wires, each wire having a plurality of coiling loops;
said multi-wire lead having a gap region and a non-gap region;
said gap region having a first gap between a coiling loop of a first wire and a coiling loop of a second wire;
said non-gap region having a second gap between a coiling loop of a first wire and a coiling loop of a second wire, said first gap being greater than said second gap. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A medical assembly, comprising:
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a multi-wire lead having a plurality of wires, each wire having a plurality of coiling loops;
said multi-wire lead having a gap region and a non-gap region;
said gap region having a first lead intra-coiling loop gap between a first coiling loop of a first wire and a second coiling loop of the first wire;
said non-gap region having a second lead intra-coiling loop gap between a third coiling loop of the first wire and a fourth coiling loop of the first wire, said first lead intra-coiling loop gap being greater than said lead intra-coiling loop second gap. - View Dependent Claims (17, 18, 19, 20, 21)
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23. A medical assembly, comprising:
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a multi-wire lead having a plurality of conductive wires and a plurality of non-conductive wires, each conductive wire having a plurality of coiling loops, each non-conductive wire having a plurality of coiling loops;
said coiling loops of a non-conductive wire being positioned between adjacent coiling loops of two conductive wires to form a lead intra-coiling loop non-conductive gap between the adjacent coiling loops of two conductive wires. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification