Implantable electrical stimulation systems with shielded control module and methods for making and using
First Claim
1. An implantable control module for an electrical stimulation system, the control module comprising:
- a sealed body;
an electronic subassembly disposed in the sealed body and configured and arranged to generate electrical stimulation signals for delivery through a lead coupled to the implantable control module;
a header coupled to the sealed body, the header comprising at least one connector assembly, each connector assembly defining a port with each connector assembly configured and arranged to receive a proximal portion of a lead inserted into the port, the header further comprising a plurality of contacts disposed within each connector assembly and configured and arranged to make contact with terminals disposed on a lead when the lead and terminals are received in the connector assembly and to electrically couple the terminals of the lead to the electronic subassembly; and
a conductive shield disposed over at least a portion of the at least one connector assembly of the header, wherein the conductive shield is configured and arranged to hinder generation of current in the header or in a portion of a lead received in the header in response to application of an external radiofrequency (RF) or magnetic field, wherein the conductive shield comprises a substrate and a plurality of conductive stripes or conductive slats disposed on the substrate and arranged parallel to the at least one connector assembly, wherein the conductive shield is disposed over at least a portion of the header.
1 Assignment
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Accused Products
Abstract
An implantable control module for an electrical stimulation system includes a header coupled a sealed body. The header includes at least one connector assembly. The control module also includes a conductive shield disposed over at least a portion of the connector assembly or connector assemblies of the header. The conductive shield is provided to hinder generation of current in the header or in a portion of a lead received in the header in response to application of an external radiofrequency (RF) or magnetic field. A similar shield can also be used to shield a connector assembly disposed on the end of a lead extension or any other component of the electrical stimulation system.
29 Citations
12 Claims
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1. An implantable control module for an electrical stimulation system, the control module comprising:
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a sealed body; an electronic subassembly disposed in the sealed body and configured and arranged to generate electrical stimulation signals for delivery through a lead coupled to the implantable control module; a header coupled to the sealed body, the header comprising at least one connector assembly, each connector assembly defining a port with each connector assembly configured and arranged to receive a proximal portion of a lead inserted into the port, the header further comprising a plurality of contacts disposed within each connector assembly and configured and arranged to make contact with terminals disposed on a lead when the lead and terminals are received in the connector assembly and to electrically couple the terminals of the lead to the electronic subassembly; and a conductive shield disposed over at least a portion of the at least one connector assembly of the header, wherein the conductive shield is configured and arranged to hinder generation of current in the header or in a portion of a lead received in the header in response to application of an external radiofrequency (RF) or magnetic field, wherein the conductive shield comprises a substrate and a plurality of conductive stripes or conductive slats disposed on the substrate and arranged parallel to the at least one connector assembly, wherein the conductive shield is disposed over at least a portion of the header. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable lead extension for an electrical stimulation system, the lead extension comprising:
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an extension body having a proximal end, a distal end, and a longitudinal length; a plurality of conductive contacts disposed along the proximal end of the extension body; a connector assembly disposed on the distal end of the extension body, the connector assembly defining at least one port configured and arranged to receive a proximal portion of a lead inserted into the port, the connector assembly further comprising a plurality of contacts disposed within the connector assembly and configured and arranged to make contact with terminals disposed on a lead when the lead and terminals are received in the connector assembly; a plurality of conductive wires electrically coupling the conductive contacts along the proximal end of the extension body to the contacts of the connector assembly; and a conductive shield disposed over at least a portion of the connector assembly, wherein the conductive shield is configured and arranged to hinder generation of current in the connector assembly or in a portion of a lead received in the connector assembly in response to application of an external radiofrequency (RF) or magnetic field, wherein the conductive shield comprises a substrate and a plurality of conductive stripes or conductive slats disposed on the substrate and arranged parallel to the connector assembly, wherein the conductive shield is disposed over at least a portion of the connector assembly. - View Dependent Claims (8, 9, 10)
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11. An implantable lead extension for an electrical stimulation system, the lead extension comprising:
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an extension body having a proximal end, a distal end, and a longitudinal length; a plurality of conductive contacts disposed along the proximal end of the extension body; a connector assembly disposed on the distal end of the extension body, the connector assembly defining an exterior surface and at least one port configured and arranged to receive a proximal portion of a lead inserted into the port, the connector assembly further comprising a plurality of contacts disposed within the connector assembly and configured and arranged to make contact with terminals disposed on a lead when the lead and terminals are received in the connector assembly; a plurality of conductive wires electrically coupling the conductive contacts along the proximal end of the extension body to the contacts of the connector assembly; and a conductive shield disposed over at least a portion of the exterior surface of the connector assembly. wherein the conductive shield is configured and arranged to hinder generation of current in the connector assembly or in a portion of a lead received in the connector assembly in response to application of an external radiofrequency (RF) or magnetic field, wherein the conductive shield comprises a tube-shaped shield disposed within the connector assembly and around at least a portion of the connector assembly. - View Dependent Claims (12)
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Specification