Coronary sinus lead for pacing the left atrium
First Claim
1. A pacing lead for implantation in a coronary sinus having an opening and a wall defining an interior and presenting a diameter dimension, the pacing lead comprising an elongated lead body with a resilient fixation element extending therefrom and defining a loop structure laterally adjacent the lead body, the pacing lead further including at least one electrode on either the lead body or the fixation element, the loop structure presenting a predetermined width dimension greater than the diameter dimension of the coronary sinus, wherein when the loop structure is inserted into the opening of the coronary sinus, the loop structure is laterally compressed by the wall of the coronary sinus and the at least one electrode is biased against the wall of the coronary sinus.
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Accused Products
Abstract
A pacing lead for implantation in a coronary sinus having an opening and a wall defining an interior and presenting a diameter dimension. The pacing lead includes an elongated lead body, a resilient fixation element, and at least one electrode on either the lead body or the fixation element. The fixation element extends from the pacing portion and defines a loop structure laterally adjacent the pacing portion. The loop structure presents a predetermined width dimension greater than the diameter dimension of the coronary sinus, wherein when the loop structure is inserted into the opening of the coronary sinus, the loop structure is laterally compressed by the wall of the coronary sinus and the electrode is biased against the wall of the coronary sinus.
25 Citations
34 Claims
- 1. A pacing lead for implantation in a coronary sinus having an opening and a wall defining an interior and presenting a diameter dimension, the pacing lead comprising an elongated lead body with a resilient fixation element extending therefrom and defining a loop structure laterally adjacent the lead body, the pacing lead further including at least one electrode on either the lead body or the fixation element, the loop structure presenting a predetermined width dimension greater than the diameter dimension of the coronary sinus, wherein when the loop structure is inserted into the opening of the coronary sinus, the loop structure is laterally compressed by the wall of the coronary sinus and the at least one electrode is biased against the wall of the coronary sinus.
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21. A method of inserting a pacing lead having a preformed shape into a coronary sinus to pace a left atrium, the coronary sinus having an opening and a wall defining an interior and presenting a diameter dimension, the method comprising:
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providing a pacing lead comprising an elongated lead body having a pacing portion with at least one electrode and a resilient fixation element, the fixation element extending from the pacing portion and defining a preformed loop structure laterally adjacent the pacing portion, the loop structure presenting a predetermined width dimension greater than the diameter dimension of the coronary sinus;
advancing the loop structure into the interior of the coronary sinus, such that the loop structure is operably laterally compressed by the coronary sinus wall thereby biasing the pacing portion and at least one electrode against the wall of the coronary sinus proximate the left atrium. - View Dependent Claims (22, 23)
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- 24. A pacing lead configured for implantation in a coronary sinus having an opening and a wall defining an interior, the pacing lead comprising an elongated lead body with at least one electrode and presenting a lead body axis, the pacing lead further including a resilient fixation element extending from the lead body and having a tip presenting a tip axis, the resilient fixation element defining a loop structure laterally adjacent the pacing portion, the loop structure presenting a predetermined width dimension greater than the diameter dimension of the coronary sinus, wherein when the loop structure is inserted into the opening of the coronary sinus, the loop structure is laterally compressed by the wall of the coronary sinus and the at least one electrode is biased against the wall of the coronary sinus.
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34. A method of inserting a pacing lead having a preformed shape into a coronary sinus, the coronary sinus having an opening and a wall defining an interior and presenting a diameter dimension, the method comprising:
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providing a pacing lead comprising an elongated lead body and a resilient fixation element with at least one electrode on either the lead body or the fixation element, the fixation element extending from the lead body and defining a preformed loop structure laterally adjacent the lead body, the loop structure presenting a predetermined width dimension greater than the diameter dimension of the coronary sinus;
deploying the loop structure outside the opening of the coronary sinus; and
advancing the loop structure into the interior of the coronary sinus, such that the loop structure is operably laterally compressed by the coronary sinus wall thereby biasing the at least one electrode against the wall of the coronary sinus.
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Specification