Multistranded conductors adapted to dynamic in vivo environments
AssigneeFoundry Innovation & Research 1, Ltd.
InventorsRobert Gaul, Fiachra Sweeney, Stephen Sheridan, Andrew Hughes, James Tucker, Sean Quinlan
Life of this patent
Estimating the term…
Abstract
Multistranded conductors adapted to in vivo environments and methods of making same are disclosed, wherein specific configurations, sequences and directions of wire wraps provide implantable multistranded coils with increased cycle life in in vivo environments as well as desirable electrical performance characteristics.
Claims40
A multistranded conductor adapted to dynamic in vivo environments, comprising a plurality of wire bundles wrapped together in a wrap direction, wherein:
- each wire bundle comprises a core bundle with at least one sub-bundle wrapped around each core bundle in said wrap direction;
- each core bundle comprises at least two core wires wrapped around each other in said wrap direction;
- each sub-bundle comprises plural first wires wrapped around at least one core wire in said wrap direction;
- and
- said first wires and core wires comprise electrically conductive wires each having a wire diameter of less than about 0.003 inches.
An implantable medical device, comprising a coil formed of a multistranded conductor comprising a plurality of wire bundles wrapped together in a wrap direction, wherein each wire bundle comprises a core bundle with at least one sub-bundle wrapped around each core bundle in said wrap direction, each core bundle comprises at least two core wires wrapped around each other in said wrap direction, each sub-bundle comprises plural first wires wrapped around at least one core wire in said wrap direction, and said first wires and core wires comprise electrically conductive wires each having a wire diameter of less than about 0.003 inches, and wherein the multistranded conductor has two opposite ends joined together with an electrical and mechanical connection, and a capacitor is disposed between and electrically joined to said two opposite conductor ends.
A method of making a multistranded conductor adapted to dynamic in vivo environments, comprising:
- forming plural wire sub-bundles by wrapping plural first wires around at least one core wire in a wrap direction;
- wrapping at least two core wires around themselves in said wrap direction;
- forming plural core bundles by wrapping plural first wires in said wrap direction around said at least two core wires around themselves;
- forming plural wire bundles by wrapping plural said sub-bundles in said wrap direction around a core bundle;
- and
- wrapping plural said wire bundles around themselves in said wrap direction to form the multistranded conductor.
Dependencies are inferred from the claim text.