MRI COMPATIBLE IMPLANTED LEAD-ELECTRODE INTERFACE
First Claim
1. An electrical lead that is adapted for implantation in an animal, said electrical lead comprising:
- a first cable having a helical electrical conductor enclosed within a sheath of electrical insulating material;
a stimulation electrode for applying electric current to tissue of an animal, the stimulation electrode includes a first contact band that has a tubular shape with a threaded lumen, a second contact band that has a threaded aperture, and a helical electrode coil that is screwed into both the threaded lumen and the threaded aperture, and wherein a portion of the helical electrical conductor of the first cable is screwed into the threaded lumen.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrical lead for implantation into an animal includes a cable to which a stimulation electrode is connected. The cable has a helical electrical conductor enclosed within an insulating sheath. The stimulation electrode has a tubular first contact band with a threaded lumen into which a portion of the helical electrical conductor is screwed. A second contact band has a threaded aperture and a helical electrode coil is screwed into both the threaded lumen and the threaded aperture. The two contact bands are separated so as to expose a portion of the electrode coil to enable electrical stimulation of tissue of the animal. Particular configurations of the helical electrode coil and the helical electrical conductor render the electrical lead compatible with MRI scanning.
45 Citations
15 Claims
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1. An electrical lead that is adapted for implantation in an animal, said electrical lead comprising:
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a first cable having a helical electrical conductor enclosed within a sheath of electrical insulating material; a stimulation electrode for applying electric current to tissue of an animal, the stimulation electrode includes a first contact band that has a tubular shape with a threaded lumen, a second contact band that has a threaded aperture, and a helical electrode coil that is screwed into both the threaded lumen and the threaded aperture, and wherein a portion of the helical electrical conductor of the first cable is screwed into the threaded lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An electrical lead that is adapted for implantation in an animal, said electrical lead comprising:
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a cable having a helical electrical conductor enclosed within a sheath of electrically insulating material; a stimulation electrode for applying electric current to tissue of an animal, the stimulation electrode has first contact band with first and second sides and a threaded lumen extending between the first and second sides, a second contact band that has third and fourth sides and a threaded aperture extending between the third and fourth sides, and a helical electrode coil that is screwed into the threaded lumen from the second side of the first contact band and is screwed into the threaded aperture from the third side of the second contact band, wherein the first and second contact bands are separated from each other thereby exposing a section of the helical electrode coil to an exterior of the electrical lead, and wherein a portion of the helical electrical conductor of the cable is screwed into the threaded lumen from the first side of the first contact band. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification