Implantable lead with improved stylet lumen
First Claim
1. An implantable lead with improved stylet lumen, comprising:
- a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens each having a proximal end;
at least two conductors contained in the conductor lumens extending from the lead proximal end to the distal end;
at least two contacts carried on the proximal end and electrically connected to the conductors;
at least two contacts carried on the lead distal end and electrically connected to the conductors; and
,a proximal flare formed on the lead body proximal end, the proximal flare having tapering walls that narrow toward a stylet opening to guide insertion of a stylet wire into the stylet lumen, and the proximal flare being formed to seal the proximal ends of the conductor lumens to electrically isolate the conductor lumens.
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Accused Products
Abstract
An implantable lead for a medical device with an improved stylet lumen reduces the potential for damage to a stylet and seals the lead proximal end. The implantable lead comprises a lead body having a distal end and a proximal end, a stylet lumen, at least two conductor lumens, at least two conductors, at least two contacts carried on the proximal end, at least two contacts carried on the distal end, and a proximal flare formed on the lead proximal end. The two conductors are contained in the conductor lumens and extend from the lead proximal end to the distal end. The two contacts carried on the lead distal end are electrically connected to the conductors. The proximal flare has tapering walls that narrow toward a stylet opening to guide insertion of a stylet into the stylet lumen, and the proximal flare seals the conductor lumens proximal end to isolate the conductor lumens.
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Citations
33 Claims
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1. An implantable lead with improved stylet lumen, comprising:
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a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens each having a proximal end; at least two conductors contained in the conductor lumens extending from the lead proximal end to the distal end; at least two contacts carried on the proximal end and electrically connected to the conductors; at least two contacts carried on the lead distal end and electrically connected to the conductors; and
,a proximal flare formed on the lead body proximal end, the proximal flare having tapering walls that narrow toward a stylet opening to guide insertion of a stylet wire into the stylet lumen, and the proximal flare being formed to seal the proximal ends of the conductor lumens to electrically isolate the conductor lumens. - View Dependent Claims (2, 3, 4)
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5. A method of manufacturing an implantable lead, comprising:
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extruding a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens; extending at least two conductors within the conductor lumens from the lead proximal end to the distal end; coupling at least two contacts on the proximal end; connecting the at least two contacts on the proximal end to the conductors; coupling at least two contacts on the lead distal end; connecting the at least two contacts on the distal end to the conductors; and
,forming a proximal flare on the lead body proximal end, the proximal flare having tapering walls that narrow toward a stylet opening to guide insertion of a stylet wire into the stylet lumen, and the proximal flare being formed to seal the proximal ends of the conductor lumens to electrically isolate the conductor lumens. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A method of manufacturing an implantable lead, comprising:
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providing a lead body having a proximal end, a stylet lumen, and a conductor lumen having a proximal end; sealing the proximal end of the conductor lumen to electrically isolate the conductor lumen, the step of sealing the proximal end of the conductor lumen to isolate the conductor lumen comprising forming a proximal flare on the proximal end of the lead body to seal the proximal end of the conductor lumen, the proximal flare having tapering walls that narrow toward a stylet opening to guide insertion of a stylet wire into the stylet lumen. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. An implantable lead, comprising:
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a lead body having a proximal end, a distal end, a stylet lumen, and at least two conductor lumens each having a proximal end; at least two conductors contained in the conductor lumens extending from the lead proximal end to the distal end; at least two contacts carried on the proximal end and electrically connected to the conductors; at least two contacts carried on the lead distal end and electrically connected to the conductors; and
,a proximal flare formed on the lead body proximal end, the proximal flare having tapering walls that narrow toward a stylet opening to guide insertion of a stylet wire into the stylet lumen, and the proximal flare being formed to seal the proximal ends of the conductor lumens to electrically isolate the conductor lumens; the proximal flare formed by inserting the proximal end of the lead body into a conical shaped mold that is inserted axially into the stylet lumen and heated to seal the conductor lumens and create the flare. - View Dependent Claims (23, 24, 25, 26)
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27. An implantable lead comprising:
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a lead body having a proximal end, a stylet lumen having a stylet opening, and a conductor lumen having a proximal end; a proximal flare formed on the proximal end of the lead body, the proximal flare having tapering walls that narrow toward the stylet opening to guide insertion of a stylet wire into the stylet lumen; the proximal flare formed by thermally molding the proximal end of the lead body such that the conductor lumen is sealed as the proximal flare is molded. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification