Medical implantable lead
AssigneeSt. Jude Medical, Inc.
InventorMichael Wang
Life of this patent
Estimating the term…
Abstract
The present invention relates to a medical implantable lead having a coaxial structure, where an insulating tube arranged between an inner coil and an outer coil is provided with a periodically alternating capacitance along the length thereof in order to reduce lead tip heating during MRI scanning.
Claims11
A medical implantable lead, comprising an elongate coaxial arrangement of an outer coil, an inner coil and an intermediate insulating tube arranged between the outer coil and the inner coil, wherein the intermediate insulating tube has a periodically alternating capacitance along the length thereof.
A medical implantable lead, comprising:
- first and second electrodes;
- a coaxially configured inner coil and outer coil, the inner coil being coupled to the first electrode and the outer coil being coupled to the second electrode;
- an intermediate insulating tube arranged between the outer coil and the inner coil, the intermediate insulating tube having a plurality of segments doped with one or more dopants to provide a periodic alternating capacitance along the length of the insulating tube.
Dependencies are inferred from the claim text.