Coronary vein leads having pre-formed biased portions for fixation
First Claim
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1. An implantable medical lead for implantation within a body vessel, comprising:
- a lead body having a proximal end and an open distal end, and including a pre-formed biased portion between the proximal and distal ends, and an-unbiased portion extending distally from the pre-formed biased portion, wherein the pre-formed biased portion is adapted to fixate the lead against an interior wall of a body vessel upon implantation and includes a three-dimensional bias having a helical shape;
a connector configured for coupling the lead to an implantable pulse generator;
a plurality of electrodes on the lead body in the pre-formed biased portion;
an electrode on the lead body in the un-biased portion;
a first conductor extending within the lead body from the proximal end toward the distal end and coupled to the electrode in the un-biased portion;
a plurality of second conductors extending within the lead body from the proximal end toward the distal end, each of the second conductors coupled to a respective one of the plurality of electrodes in the pre-formed biased portion; and
an open lumen extending longitudinally through the distal end of the lead body.
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Abstract
A lead having a pre-formed biased portion is adapted for implantation with a body vessel and for connection to a signal generator. The lead is constructed and arranged so that when it is implanted, the electrodes are biased toward a vessel wall by the preformed biased portion, which operates to fixate the lead against the vessel wall.
227 Citations
22 Claims
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1. An implantable medical lead for implantation within a body vessel, comprising:
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a lead body having a proximal end and an open distal end, and including a pre-formed biased portion between the proximal and distal ends, and an-unbiased portion extending distally from the pre-formed biased portion, wherein the pre-formed biased portion is adapted to fixate the lead against an interior wall of a body vessel upon implantation and includes a three-dimensional bias having a helical shape; a connector configured for coupling the lead to an implantable pulse generator; a plurality of electrodes on the lead body in the pre-formed biased portion; an electrode on the lead body in the un-biased portion; a first conductor extending within the lead body from the proximal end toward the distal end and coupled to the electrode in the un-biased portion; a plurality of second conductors extending within the lead body from the proximal end toward the distal end, each of the second conductors coupled to a respective one of the plurality of electrodes in the pre-formed biased portion; and an open lumen extending longitudinally through the distal end of the lead body. - View Dependent Claims (2, 3, 4, 5)
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6. An implantable medical lead, comprising:
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a lead body having a proximal end and an open distal end, and including a pre-formed biased portion between the proximal and distal ends, the pre-formed biased portion adapted to fixate the lead against an interior wall of a body vessel upon implantation and including a three-dimensional bias and a two-dimensional bias; a connector configured for coupling the lead body to an implantable pulse generator; an electrode on the lead body; a conductor coil coupled to the electrode and extending within the lead body from the proximal end toward the distal end; and an open lumen extending longitudinally through the distal end of the lead body. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implantable medical lead for implantation within a body vessel, comprising:
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a lead body having a proximal end and an open distal end, and including a pre-formed biased portion between the proximal and distal ends, and an-unbiased portion extending distally from the pre-formed biased portion, wherein the pre-formed biased portion is adapted to fixate the lead against an interior wall of a body vessel upon implantation and includes a three-dimensional bias having a helical shape; at least one electrode located at the pre-formed biased portion and arranged to provide sensing or stimulation at a first contact location of the body vessel when implanted; at least one electrode located at the un-biased portion and arranged to provide sensing or stimulation at a second contact location of the body vessel spaced apart from the first contact location when implanted; and an open lumen extending longitudinally through the distal end of the lead body. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification