Medical lead for placement in the pericardial sac
First Claim
1. A pericardial lead having a lead body, comprising:
- a distal end portion carrying at least one pacing and sensing electrode adapted for placement in the pericardial sac of a human heart, the distal end portion of the lead body including a multi-turn section having opposed ends, opposing forces applied to said ends tending to flatten the multi-turn section, the multi-turn section being thereby adapted for retention within the pericardial sac;
wherein the turns of the multi-turn section become progressively smaller from one end of the section to the other end of the section; and
wherein the at least one electrode is carried adjacent to the end of the multi-turn section having the larger turns.
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Accused Products
Abstract
The lead body of a medical lead comprises a distal end portion carrying at least one electrode for placement in the pericardial sac of a human heart. The distal end portion of the lead body includes a multi-turn section having opposed ends, opposing forces applied to the ends tending to flatten the multi-turn section, the multi-turn section being thereby adapted to be retained within the pericardial sac. The turns of the multi-turn section may become progressively smaller from one end of the section to the other end of the section. The multi-turn section may have, in a relaxed state thereof, a generally conical, helical configuration. The at least one electrode may be carried adjacent to the end of the multi-turn section having the larger turns. Alternatively, the at least one electrode may be carried adjacent to the end of the multi-turn section having the smaller turns.
155 Citations
22 Claims
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1. A pericardial lead having a lead body, comprising:
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a distal end portion carrying at least one pacing and sensing electrode adapted for placement in the pericardial sac of a human heart, the distal end portion of the lead body including a multi-turn section having opposed ends, opposing forces applied to said ends tending to flatten the multi-turn section, the multi-turn section being thereby adapted for retention within the pericardial sac; wherein the turns of the multi-turn section become progressively smaller from one end of the section to the other end of the section; and wherein the at least one electrode is carried adjacent to the end of the multi-turn section having the larger turns. - View Dependent Claims (2, 3, 4)
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5. A pericardial lead having a lead body, comprising:
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a distal end portion carrying at least one pacing and sensing electrode and having a preformed, wound section comprising a plurality of turns and opposite ends, the turns of the wound section becoming progressively smaller along an axis from one end of the wound section to the other end of the wound section, the wound section being adapted to be placed within the pericardial sac of a human heart; wherein the wound section carries an eluting device for infusing the pericardial sac with a biologically or pharmacologically active agent. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A pericardial lead having a lead body, comprising:
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a distal end portion carrying at least one pacing and sensing electrode and having a preformed, wound section comprising a plurality of turns and opposite ends, the turns of the wound section becoming progressively smaller along an axis from one end of the wound section to the other end of the wound section, the wound section being adapted to be placed within the pericardial sac of a human heart; wherein the at least one electrode is carried by the wound section; and wherein the at least one electrode is carried adjacent the end of the wound section having the larger turns.
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Specification