Lead electrode for use in an MRI-safe implantable medical device
First Claim
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1. A medical lead configured to be implanted into a patient'"'"'s body, the lead comprising:
- an elongated lead body having a proximal end and a distal end;
a conductive filer that is coupled to an electrical contact at the proximal end and that passes through an interior of the lead body to the distal end; and
an electrode coupled to said lead body at the distal end, said electrode comprising;
a first section comprising a ring that is configured to contact the patient'"'"'s body and that is coupled to the conductive filer; and
a second section comprising a ring positioned outside of the ring of the first section and an extension from the ring of the second section that is capacitively coupled to said first section by at least a portion of the extension being positioned within the ring of the first section, the second section being configured to be electrically coupled to the patient'"'"'s body.
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Abstract
A medical lead is configured to be implanted into a patient'"'"'s body and comprises a lead body, and an electrode coupled to the lead body. The electrode comprises a first section configured to contact the patient'"'"'s body, and a second section capacitively coupled to the first section and configured to be electrically coupled to the patient'"'"'s body.
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Citations
18 Claims
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1. A medical lead configured to be implanted into a patient'"'"'s body, the lead comprising:
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an elongated lead body having a proximal end and a distal end; a conductive filer that is coupled to an electrical contact at the proximal end and that passes through an interior of the lead body to the distal end; and an electrode coupled to said lead body at the distal end, said electrode comprising; a first section comprising a ring that is configured to contact the patient'"'"'s body and that is coupled to the conductive filer; and a second section comprising a ring positioned outside of the ring of the first section and an extension from the ring of the second section that is capacitively coupled to said first section by at least a portion of the extension being positioned within the ring of the first section, the second section being configured to be electrically coupled to the patient'"'"'s body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pulse stimulation system for implantation into a patient'"'"'s body, the system comprising:
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a pulse generator; a conductive filer having a proximal end electrically coupled to said pulse generator and having a distal end; a lead body for housing said conductive filer; and a stimulation electrode configured on said lead body and electrically coupled to the distal end of said filer, said stimulation electrode comprising; a first section comprising a ring that is configured to contact the patient'"'"'s body for delivering stimulation thereto; and a second section comprising a ring that is outside of the ring of the first section and an extension from the ring of the second section that is capacitively coupled to said first section by at least a portion of the extension being positioned within the ring of the first section, the second section being configured to be electrically coupled to the patient'"'"'s body. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A medical lead configured to be implanted into a patient'"'"'s body, the lead comprising:
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a lead body; and an electrode coupled to said lead body, said electrode comprising; a first section comprising a ring that is configured to contact the patient'"'"'s body; and a second section comprising a ring that is outside of the ring of the first section and an extension from the ring of the second section that is capacitively coupled to said first section by at least a portion of the extension being positioned within the ring of the first section, the second section being configured to be electrically coupled to the patient'"'"'s body; wherein said lead body houses a conductive filer and wherein said first section and said second section have an opening therethrough for receiving said conductive filer.
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Specification