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.
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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