SPIRAL CONFIGURATIONS FOR INTRAVASCULAR LEAD STABILITY
First Claim
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1. A medical electrical lead for stimulating a nerve, wherein the lead is adapted to be delivered to a stimulation site within a vessel adjacent the nerve to be stimulated, the lead comprising;
- a proximal end adapted to be connected to a pulse generator;
a lead body including a distal portion adapted to transition between a collapsed configuration and an expanded configuration for securing and stabilizing the lead at the stimulation site, wherein the distal portion comprises a first spiral, a second spiral, and a generally straight portion occurring between the first spiral and the second spiral, wherein the spirals have a predetermined effective outer diameter and are adapted to frictionally engage at least one vessel wall; and
one or more electrodes adapted to deliver an electrical pulse transvascularly to the nerve to be stimulated located on the distal portion, wherein when the distal portion expands at least one electrode is placed in close proximity to the nerve to be stimulated.
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Abstract
A medical electrical lead for transvascularly stimulating a nerve, muscle or other tissue from an adjacent vessel is described. The lead includes an expandable distal portion having one or more spirals for securing and stabilizing the lead within the vessel.
244 Citations
24 Claims
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1. A medical electrical lead for stimulating a nerve, wherein the lead is adapted to be delivered to a stimulation site within a vessel adjacent the nerve to be stimulated, the lead comprising;
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a proximal end adapted to be connected to a pulse generator; a lead body including a distal portion adapted to transition between a collapsed configuration and an expanded configuration for securing and stabilizing the lead at the stimulation site, wherein the distal portion comprises a first spiral, a second spiral, and a generally straight portion occurring between the first spiral and the second spiral, wherein the spirals have a predetermined effective outer diameter and are adapted to frictionally engage at least one vessel wall; and one or more electrodes adapted to deliver an electrical pulse transvascularly to the nerve to be stimulated located on the distal portion, wherein when the distal portion expands at least one electrode is placed in close proximity to the nerve to be stimulated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical electrical lead for stimulating a nerve, wherein the lead is adapted to be delivered to a stimulation site within a vessel adjacent the nerve to be stimulated, the lead comprising:
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a proximal end adapted to be connected to a pulse generator; a lead body including a distal portion adapted to transition from a collapsed configuration to an expanded configuration for securing and stabilizing the lead at the stimulation site, wherein the distal portion comprises at least one spiral having a predetermined effective outer diameter, wherein the predetermined effective outer diameter of the spiral is slightly larger than an inner diameter of the vessel in which the distal portion of the lead is deployed, and wherein the spiral is adapted to frictionally engage at least one vessel wall when the distal portion is in the expanded configuration; and one or more electrodes adapted to deliver an electrical pulse transvascularly to the nerve to be stimulated located on the distal portion, wherein when the distal portion expands at least one electrode is placed in close proximity to the nerve to be stimulated. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of stimulating a nerve from an adjacent vessel using an intravascular medical electrical lead connected to an electrical pulse generator, the method comprising:
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providing a medical electrical lead including a conductive lead body, an expandable distal portion comprising one or more spirals for securing and stabilizing the lead at a stimulation site located within a vessel adjacent a vagus nerve, and at least one electrode located on the distal portion; collapsing the distal portion; advancing the distal portion of the lead to the stimulation site located within the vessel adjacent the vagus nerve; allowing the distal portion to expand such that the spiral secures and stabilizes the distal portion of the lead in the vessel such that the at least one electrode is disposed adjacent the vagus nerve; and stimulating the vagus nerve. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification