Implantable medical device lead including a unifilar coiled cable
First Claim
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1. A medical device lead comprising:
- a flexible body formed from a polymeric material, the flexible body having a proximal region with a proximal end, a distal region with a distal end, and a plurality of lumens extending from the proximal region to the distal region, the plurality of lumens including a first lumen and a second lumen that is smaller in diameter than the first lumen;
a connector coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator;
a first electrode in the distal region of the flexible body;
a second electrode in the distal region of the flexible body, the second electrode comprising a ring electrode;
a coiled conductor extending within the first lumen from the proximal region to the distal region, the coiled conductor electrically connected to the connector and to the first electrode; and
a cable conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to the ring electrode, the cable conductor consisting of a single helically coiled filar including a plurality of co-radial turns, the single helically coiled filar extending within the second lumen from the proximal region to the distal region, wherein the outer diameter of the coiling of each single helically coiled filar is less than about 0.020 inch (0.508 mm) and is less than the outer diameter of coiling of the coiled conductor.
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Abstract
A medical device lead includes a flexible body having a proximal region with a proximal end, and a distal region with a distal end. A connector is coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator. The medical device lead also includes an electrode in the distal region of the flexible body, and a cable conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to the electrode. The cable conductor consists of a single helically coiled filar including a plurality of co-radial turns and having an outer diameter of less than about 0.020 inch (0.508 mm).
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Citations
20 Claims
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1. A medical device lead comprising:
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a flexible body formed from a polymeric material, the flexible body having a proximal region with a proximal end, a distal region with a distal end, and a plurality of lumens extending from the proximal region to the distal region, the plurality of lumens including a first lumen and a second lumen that is smaller in diameter than the first lumen; a connector coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator; a first electrode in the distal region of the flexible body; a second electrode in the distal region of the flexible body, the second electrode comprising a ring electrode; a coiled conductor extending within the first lumen from the proximal region to the distal region, the coiled conductor electrically connected to the connector and to the first electrode; and a cable conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to the ring electrode, the cable conductor consisting of a single helically coiled filar including a plurality of co-radial turns, the single helically coiled filar extending within the second lumen from the proximal region to the distal region, wherein the outer diameter of the coiling of each single helically coiled filar is less than about 0.020 inch (0.508 mm) and is less than the outer diameter of coiling of the coiled conductor. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A medical device lead comprising:
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a flexible body having a proximal region with a proximal end and a distal region with a distal end, the flexible body formed from a polymeric material and having a plurality of lumens extending from the proximal region to the distal region, the plurality of lumens including a first lumen and a second lumen that is smaller in diameter than the first lumen; a connector coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator; a tip electrode at the distal end of the flexible body; one or more ring electrodes in the distal region of the flexible body; a coiled conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to the tip electrode, the coiled conductor extending within the first lumen from the proximal region to the distal region; and one or more cable conductors each having a proximal end electrically coupled to the connector and a distal end electrically coupled to one of the one or more ring electrodes, each cable conductor consisting of a single helically coiled filar including a plurality of co-radial turns, one of the single helically coiled filars extending within the second lumen from the proximal region to the distal region, wherein an outer diameter of the coiling of each single helically coiled filar is less than an outer diameter of the coiling of the coiled conductor. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A medical device lead comprising:
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a flexible body having a proximal region with a proximal end, and a distal region with a distal end, the flexible body formed from a polymeric material and having a plurality of lumens extending from the proximal region to the distal region, the plurality of lumens including a first lumen and a second lumen that is smaller in diameter than the first lumen; a connector coupled to the proximal end of the flexible body of the lead to electrically and mechanically connect the lead to an implantable pulse generator; at least two electrodes in the distal region of the flexible body configured to deliver pacing signals and/or sense electrical activity of cardiac tissue; a coiled conductor extending within the first lumen from the proximal region to the distal region, the coiled conductor having a proximal end electrically coupled to the connector and a distal end electrically coupled to one of the at least two electrodes; and one or more cable conductors each having a proximal end electrically coupled to the connector and a distal end electrically coupled to another one of the one or more electrodes, each cable conductor consisting of a single helically coiled filar including a plurality of co-radial turns, one of the single helically coiled filars extending within the second lumen from the proximal region to the distal region, wherein the outer diameter of the coiling of each of the single helically coiled filars is less than about 0.020 inch (0.508 mm) and is less than the outer diameter of the coiling of the coiled conductor. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification