Deep brain stimulation lead
First Claim
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1. A neurological lead, comprising:
- a planar formed, cylindrical film comprising a distal end, a proximal end, and a plurality of electrodes, the planar formed, cylindrical film further comprising;
a ribbon cable extending from the distal end of the planar formed, cylindrical film into a lumen defined by the planar formed, cylindrical film;
a first polymeric layer;
a first silicon based barrier layer at least partially disposed over the first polymeric layer;
a first metal layer at least partially disposed over the first silicon based barrier layer;
a second silicon based barrier layer at least partially disposed over the first metal layer and the first silicon based barrier layer, the second silicon based barrier layer defining a first plurality of through-holes;
a second polymeric layer at least partially disposed over the second silicon based barrier layer and defining a second plurality of through-holes, the first plurality of through-holes substantially aligned with the second plurality of through-holes to define each of the plurality of electrodes; and
a second metal layer disposed on the first metal layer; and
a tube coupled with the proximal end of the planar formed, cylindrical film, the tube comprising one or more orientation marks.
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Abstract
The present disclosure discusses a system and methods for a deep brain stimulation lead. More particularly, the disclosure discusses a stimulation lead that includes one or more silicon based barrier layers within a MEMS film. The silicon based barrier layers can improve device reliability and durability. The silicon based barrier layers can also improve adhesion between the layers of the MEMS film.
704 Citations
25 Claims
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1. A neurological lead, comprising:
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a planar formed, cylindrical film comprising a distal end, a proximal end, and a plurality of electrodes, the planar formed, cylindrical film further comprising; a ribbon cable extending from the distal end of the planar formed, cylindrical film into a lumen defined by the planar formed, cylindrical film; a first polymeric layer; a first silicon based barrier layer at least partially disposed over the first polymeric layer; a first metal layer at least partially disposed over the first silicon based barrier layer; a second silicon based barrier layer at least partially disposed over the first metal layer and the first silicon based barrier layer, the second silicon based barrier layer defining a first plurality of through-holes; a second polymeric layer at least partially disposed over the second silicon based barrier layer and defining a second plurality of through-holes, the first plurality of through-holes substantially aligned with the second plurality of through-holes to define each of the plurality of electrodes; and a second metal layer disposed on the first metal layer; and a tube coupled with the proximal end of the planar formed, cylindrical film, the tube comprising one or more orientation marks. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming a neurological lead, the method comprising:
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forming a planar film comprising a plurality of electrodes and a ribbon cable extending from a distal end of the planar film by; depositing a first silicon based barrier layer at least partially over a first polymeric layer; depositing a first metal layer at least partially over the first silicon based barrier layer; depositing a second silicon based barrier layer over at least partially over the first metal layer and the first silicon based barrier layer; depositing a second polymeric layer at least partially over the second silicon based barrier layer; and depositing a second metal layer on the first metal layer; heating the planar film; molding the heated planar film into a cylinder, the cylinder defining a lumen; extending the ribbon cable into the lumen defined by the cylinder; and coupling the molded planar film to a tube comprising one or more orientation marks. - View Dependent Claims (9, 10, 11, 12)
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13. A neurological lead, comprising:
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a planar formed, cylindrical film defining a lumen, the planar formed, cylindrical film comprising a distal end and a proximal end, the planar formed, cylindrical film further comprising; a plurality of electrodes disposed on an outer surface of the planar formed, cylindrical film; and a ribbon cable extending from the distal end of the planar formed, cylindrical film into the lumen toward the proximal end of the planar formed, cylindrical film; and an encapsulating polymer filling the lumen of the planar formed, cylindrical film; and a tube coupled with the proximal end of the planar formed, cylindrical film, the tube comprising one or more orientation marks. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of manufacturing a neurological lead, the method comprising:
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providing a planar film comprising a distal end, a proximal end, a plurality of electrodes, and a ribbon cable extending from the distal end of the planar film; forming the planar film into a cylinder, the cylinder defining a lumen; extending the ribbon cable into the lumen defined by the cylinder; filling the lumen with an encapsulating polymer; and disposing a radiopaque dye on the planar film. - View Dependent Claims (23, 24, 25)
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Specification