Systems and methods for reducing electromagnetic field-induced heating from an implantable pulse generator
First Claim
1. An implantable control module for an implantable electrical stimulation system and configured and arranged to electrically couple to a lead, the control module comprising:
- a housing having an interior and an exterior, wherein at least a portion of the exterior is a metallic structure and at least a portion of the interior defines a sealed compartment;
an electronic subassembly disposed in the sealed compartment in the interior of the housing;
a connector assembly coupled to the exterior of the housing, the connector assembly defining a port configured and arranged for receiving the lead;
a plurality of connector contacts disposed in the port, the connector contacts configured and arranged to electrically couple with terminals of the lead when the lead is operationally received by the port;
a plurality of feedthrough interconnects extending from the connector assembly into the sealed compartment of the interior of the housing, the plurality of feedthrough interconnects electrically coupling the plurality of connector contacts to the electronic subassembly; and
a coil disposed within or on the housing and configured and arranged to be shorted when an external electromagnetic field is applied in order to resist generation of an eddy current in the metallic structure of the exterior of the sealed housing in response to the external electromagnetic field.
1 Assignment
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Accused Products
Abstract
An implantable control module for an implantable electrical stimulation system includes a housing with at least a portion of the exterior forming a metallic structure and at least a portion of the interior defining a sealed compartment. The control module further includes an electronic subassembly disposed in the sealed compartment; a connector assembly coupled to the housing and defining a port for receiving a lead; connector contacts disposed in the port to electrically couple with terminals of the lead; feedthrough interconnects extending from the connector assembly into the sealed compartment and coupling the connector contacts to the electronic subassembly; and a coil disposed within or on the housing and configured and arranged to be shorted when an external electromagnetic field is applied in order to resist generation of an eddy current in the metallic structure of the exterior of the sealed housing in response to the external electromagnetic field.
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Citations
20 Claims
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1. An implantable control module for an implantable electrical stimulation system and configured and arranged to electrically couple to a lead, the control module comprising:
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a housing having an interior and an exterior, wherein at least a portion of the exterior is a metallic structure and at least a portion of the interior defines a sealed compartment; an electronic subassembly disposed in the sealed compartment in the interior of the housing; a connector assembly coupled to the exterior of the housing, the connector assembly defining a port configured and arranged for receiving the lead; a plurality of connector contacts disposed in the port, the connector contacts configured and arranged to electrically couple with terminals of the lead when the lead is operationally received by the port; a plurality of feedthrough interconnects extending from the connector assembly into the sealed compartment of the interior of the housing, the plurality of feedthrough interconnects electrically coupling the plurality of connector contacts to the electronic subassembly; and a coil disposed within or on the housing and configured and arranged to be shorted when an external electromagnetic field is applied in order to resist generation of an eddy current in the metallic structure of the exterior of the sealed housing in response to the external electromagnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An implantable control module for an implantable electrical stimulation system and configured and arranged to electrically couple to a lead, the control module comprising:
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a housing having an interior and an exterior, wherein at least a portion of the exterior is a metallic structure and at least a portion of the interior defines a sealed compartment; an electronic subassembly disposed in the sealed compartment in the interior of the housing; a connector assembly coupled to the exterior of the housing, the connector assembly defining a port configured and arranged for receiving the lead; a plurality of connector contacts disposed in the port, the connector contacts configured and arranged to electrically couple with terminals of the lead when the lead is operationally received by the port; a plurality of feedthrough interconnects extending from the connector assembly into the sealed compartment of the interior of the housing, the plurality of feedthrough interconnects electrically coupling the plurality of connector contacts to the electronic subassembly; a coil disposed within or on the housing; and a signal generator disposed within the housing and electrically coupled to the coil and configured and arranged to generate an opposing flux within the coil in response to an external electromagnetic field to resist generation of an eddy current in the metallic structure of the exterior of the sealed housing. - View Dependent Claims (18, 19, 20)
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Specification