Energy shunt for producing an MRI-safe implantable medical device
First Claim
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1. A neurostimulation system configured for implantation into a patient'"'"'s body, the system comprising:
- a neurostimulator;
a conductive stimulation lead having a first proximal end and a first distal end;
at least one distal electrode electrically coupled proximate said first distal end;
a lead extension having a second proximal end electrically coupled to said neurostimulator and having a second distal end electrically coupled to said first proximal end; and
a shunt electrically coupled to said first proximal end and for diverting RF energy from said lead.
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Abstract
A neurostimulation system is configured for implantation into a patient'"'"'s body and comprises a neurostimulator, a conductive stimulation lead having a first proximal end and a first distal end, at least one distal electrode electrically coupled proximate the first distal end, and a lead extension having a second proximal end electrically coupled to the neurostimulator and having a second distal end electrically coupled to the first proximal end. A shunt is electrically coupled to the first proximal end for diverting RF energy from the lead.
278 Citations
45 Claims
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1. A neurostimulation system configured for implantation into a patient'"'"'s body, the system comprising:
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a neurostimulator;
a conductive stimulation lead having a first proximal end and a first distal end;
at least one distal electrode electrically coupled proximate said first distal end;
a lead extension having a second proximal end electrically coupled to said neurostimulator and having a second distal end electrically coupled to said first proximal end; and
a shunt electrically coupled to said first proximal end and for diverting RF energy from said lead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An implantable lead assembly of the type utilized in conjunction with an implantable pulse generator, said lead assembly comprising:
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a conductive stimulation lead having a first proximal end and a first distal end;
at least one distal electrode electrically coupled proximate said first distal end; and
a shunt electrically coupled to said first proximal for diverting RF energy from said lead. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for diverting RF energy induced, during an MRI scan, in a lead assembly implanted in a patient'"'"'s body, the lead assembly including a distal electrode, the method comprising:
implanting a shunt having a first end coupled to the lead and configured to divert the induced RF energy from the lead and distal electrode at MRI frequencies. - View Dependent Claims (34)
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35. A pulse stimulation system configured for implantation into a patient'"'"'s body, the system comprising:
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a pulse generator;
a conductive stimulation lead having a proximal end electrically coupled to said pulse generator and having a distal end;
at least one distal electrode electrically coupled proximate said distal end; and
a shunt electrically coupled to said proximal end for diverting RF energy from said lead. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification