Lead assemblies with one or more switching networks
First Claim
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1. A lead assembly comprising:
- a lead body having a plurality of conductor wires embedded therein, wherein the plurality of conductor wires comprises an input/output wire, a ground wire, an anode wire and a cathode wire, wherein the input/output wire, the ground wire, the anode wire and the cathode wire are separate wires;
a plurality of electrode contacts at least partially disposed on an outer surface of said lead body; and
a plurality of switching networks located within the lead body, each switching network corresponding to and configured to control an operation of one or more of said plurality of electrode contacts, wherein each of said plurality of electrode contacts is connected to at least one of said plurality of switching networks, each of said conductor wires is electrically coupled to each of said switching networks and wherein each of said switching networks comprises;
a memory unit coupled to the input/output wire and configured to store one or more unique address codes and one or more stimulation parameters configured to facilitate independent control of each of said electrode contacts, anda switching element configured to selectively switch between coupling a corresponding electrode contact to said anode wire and to said cathode wire in response to signals received at the memory unit from the input/output wire.
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Abstract
Exemplary lead assemblies include a lead body having a plurality of conductor wires embedded therein, a plurality of electrode contacts at least partially disposed on an outer surface of the lead body, and a plurality of switching networks each configured to control an operation of one or more of the plurality of electrode contacts.
74 Citations
16 Claims
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1. A lead assembly comprising:
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a lead body having a plurality of conductor wires embedded therein, wherein the plurality of conductor wires comprises an input/output wire, a ground wire, an anode wire and a cathode wire, wherein the input/output wire, the ground wire, the anode wire and the cathode wire are separate wires; a plurality of electrode contacts at least partially disposed on an outer surface of said lead body; and a plurality of switching networks located within the lead body, each switching network corresponding to and configured to control an operation of one or more of said plurality of electrode contacts, wherein each of said plurality of electrode contacts is connected to at least one of said plurality of switching networks, each of said conductor wires is electrically coupled to each of said switching networks and wherein each of said switching networks comprises; a memory unit coupled to the input/output wire and configured to store one or more unique address codes and one or more stimulation parameters configured to facilitate independent control of each of said electrode contacts, and a switching element configured to selectively switch between coupling a corresponding electrode contact to said anode wire and to said cathode wire in response to signals received at the memory unit from the input/output wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12)
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9. The lead assembly of claim wherein the one or more stimulation parameters comprises frequency adjustments.
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10. A system comprising:
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an implantable stimulator configured to generate electrical stimulation current; and a lead assembly coupled to said implantable stimulator, said lead assembly comprising; a lead body having a plurality of conductor wires embedded therein, wherein the plurality of conductor wires comprises an input/output wire, a ground wire, an anode wire and a cathode wire, wherein the input/output wire, the ground wire, the anode wire and the cathode wire are separate wires; a plurality of electrode contacts at least partially disposed on an outer surface of said lead body; and a plurality of switching networks located within the lead body, each switching network corresponding to and configured to control an operation of one or more of said plurality of electrode contacts, wherein each of said plurality of electrode contacts is connected to at least one of said plurality of switching networks, each of said conductor wires is electrically coupled to each of said switching networks and wherein each of said switching networks comprises; a memory unit coupled to the input/output wire and configured to store one or more unique address codes and one or more stimulation parameters configured to facilitate independent control of each of said electrode contacts, and a switching element configured to selectively switch between coupling a corresponding electrode contact to said anode wire and to said cathode wire in response to signals received at the memory unit from the input/output wire. - View Dependent Claims (11, 13, 14)
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15. A method comprising:
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generating electrical stimulation current; providing a lead body having a plurality of conductor wires embedded therein, wherein the plurality of conductor wires comprises an input/output wire, a ground wire, an anode wire and a cathode wire, wherein the input/output wire, the anode wire and the cathode wire are separate wires; providing a plurality of electrode contacts each having a corresponding switching network located within the lead body and configured to control an operation thereof, wherein each of said plurality of electrode contacts is connected to at least one of the switching networks, each of said conductor wires is electrically coupled to each of said switching networks and each of said switching networks comprises a memory unit coupled to the input/output wire and configured to store one or more unique address codes and one or more stimulation parameters configured to facilitate independent control of each of said plurality of electrode contacts, and a switching element configured to selectively switch between coupling a corresponding electrode contact to said anode wire and to said cathode wire in response to signals received at the memory unit from the input/output wire; storing one or more unique address codes and one or more stimulation parameters within the memory unit of each of said switching networks for facilitating independent control of each of said electrode contacts; and selectively applying said stimulation current to one or more stimulation sites via a subset of said electrode contacts by transmitting one or more stimulation parameters to one or more of said switching networks via one or more of said conductor wires. - View Dependent Claims (16)
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Specification