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US 10,092,747 B2Granted
MRI compatible medical devices
AssigneeNevro Corporation
InventorsVivek Sharma, Andre Walker, Apratim Dixit
Life of this patent
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Abstract
A medical device for conducting electrical signal comprises an elongate member and a plurality of cables. Each cable may have three concentric layers: a first layer with an inner conductor, a second layer with an inner insulator, and a third layer with an outer conductor. The inner insulator electrically isolates the outer conductor from the inner conductor.
Claims56
A medical device for conducting an electrical signal comprising:
- an elongate member with a proximal end and a distal end;
- a plurality of electrical contacts disposed at the proximal end of the elongate member;
- and
- a plurality of cables extending along a portion of the elongate member, each cable electrically coupled to only one of the plurality of electrical contacts,
- wherein each cable comprises three concentric layers including:
- a first layer comprising an inner conductor,
- a second layer comprising an inner insulator, and
- a third layer comprising an outer conductor, wherein the second layer is configured to substantially electrically isolate the first layer from the third layer.
5 more elements
A medical device for conducting an electrical signal comprising:
- an elongate member with a proximal end and a distal end;
- and
- a plurality of cables extending along a portion of the elongate member,
- wherein each cable comprises three concentric layers including:
- a first layer comprising an inner conductor,
- a second layer comprising an inner insulator, and
- a third layer comprising an outer conductor,
- wherein the second layer is configured to substantially electrically isolate the first layer from the third layer, and
- wherein the outer conductor of each cable is configured to reduce electromagnetic interference of an external source of electromagnetic energy on the inner conductor of each cable.
6 more elements
A medical device for conducting an electrical signal comprising:
- an elongate member with a proximal end and a distal end;
- a plurality of electrodes disposed at the distal end of the elongate member;
- and
- a plurality of cables extending along a portion of the elongate member, each cable electrically coupled to only one of the plurality of electrodes,
- wherein each cable comprises three concentric layers including:
- a first layer comprising an inner conductor,
- a second layer comprising an inner insulator, and
- a third layer comprising an outer conductor, wherein the second layer is configured to substantially electrically isolate the first layer from the third layer.
5 more elements
Dependencies are inferred from the claim text.