Lead body with inner and outer co-axial coils
AssigneeGreatbatch Ltd.
InventorsJesse Geroy, John M. Swoyer
Life of this patent
Estimating the term…
Abstract
A biomedical conductor assembly adapted for at least partial insertion in a living body. The conductor assembly includes a plurality of the first electrical conductors each covered with an insulator and helically wound in a first direction to form an inner coil with a lumen. A plurality of second electrical conductors each including a plurality of un-insulated wires twisted in a ropelike configuration around a central axis to form a plurality of cables. Each cable is covered with an insulator and helically wound in a second opposite direction forming an outer coil in direct physical contact with the inner coil. The inner and outer coils are covered by an insulator. A method of making the conductor assembly and implanting a neurostimulation system is also disclosed.
Claims20
A biomedical conductor assembly adapted for at least partial insertion in a living body, the conductor assembly comprising:
- a plurality of first electrical conductors, each first electrical conductor being covered with a first insulator;
- a plurality of second electrical conductors, each second electrical conductor being covered with a second insulator, wherein the plurality of the first electrical conductors are helically wound in a first direction to form an inner coil with a lumen, and the plurality of the second electrical conductors are helically wound in a second opposite direction to form an outer coil around an outside of the inner coil and in direct physical contact with the inner coil, wherein the inner coil is substantially concentric with the outer coil;
- and
- an assembly insulator covering the inner and outer coils.
A biomedical conductor assembly adapted for at least partial insertion in a living body, the conductor assembly comprising:
- a plurality of first electrical conductors that are each covered with a first insulator and are helically wound in a first direction to form an inner coil with a lumen;
- a plurality of second electrical conductors that are helically wound in a second opposite direction forming an outer coil around an outside of the inner coil and in direct physical contact with the inner coil, wherein the inner coil is substantially concentric with the outer coil;
- and
- an assembly insulator covering the inner and outer coils.
A therapy delivery element comprising:
- an elongated lead body including a proximal end and a distal end, the lead body including:
- a plurality of first electrical conductors, each of the plurality of first electrical conductors being covered with a first insulator and helically wound in a first direction to form an inner coil with a lumen;
- a plurality of second electrical conductors, each of the plurality of second electrical conductors being covered with a second insulator and helically wound in a second opposite direction to form an outer coil around an outside of the inner coil and in direct physical contact with the inner coil, wherein the inner coil is substantially concentric with the outer coil;
- and
- an assembly insulator covering the inner and outer coils.
Dependencies are inferred from the claim text.