Method for lead tip removal using a stabilization device
View Patent ↗Lead tip removal is accomplished by first stabilizing an area around the lead tip attachment site in the heart wall. A balloon located at the tip of the lead when inflated expands substantially perpendicular to the lead, stabilizing the area around the lead tip. Upon further inflation, the balloon expands substantially parallel with the lead, causing the lead tip to pull away from the heart wall. In another embodiment, a sheath is inserted over the lead and advanced to the heart wall. A passive or active stabilization device is attached to the sheath tip to stabilize the area around the lead tip. In another embodiment, a balloon is located at the tip of the sheath that, when inflated, expands substantially perpendicular to the lead, stabilizing the area around the lead tip. The lead tip is removed with less force due to the stabilization provided to the lead tip area.
1. A method for lead tip removal by using a device including a sheath having a sheath tip and a stabilization device located at the sheath tip, the method comprising the steps of:
(a) inserting the sheath over a lead and advancing the sheath to a lead tip attached to a heart wall;
(b) securing the lead to the sheath;
(c) applying a first force in a first direction to the heart wall via the stabilization device, wherein the first force simultaneously:
(c1) stabilizes an area of tissue of the heart wall where the lead tip is attached; and
(c2) removes the lead tip from the heart wall by producing a second force to displace the lead tip in a second direction relative to the heart wall, the second force being produced by the applying of the first force and being applied to the lead via the sheath, wherein the lead is secured to the sheath, the second direction being opposite the first direction, wherein less force is required to remove the lead tip from the heart wall due to the stabilization provided to the area of tissue of the heart wall by the stabilization device.
2. The method for lead tip removal according to claim 1 wherein the stabilization device is a balloon.
3. The method for lead tip removal according to claim 1 wherein the step (b) comprises engaging a clamp internal to the sheath with the lead to secure the lead to the sheath; and the step (c) comprises inflating a balloon of the stabilization device causing the balloon to expand substantially perpendicular to the lead.
4. The method for lead tip removal according to claim 3 further comprising a step of:
inflating the balloon to a higher pressure, wherein the balloon expands substantially parallel to the lead, causing the lead tip to pull away from the heart wall.
5. The method for lead tip removal according to claim 3 wherein the step (a) further comprises a step of:
advancing the sheath over the lead until the sheath tip presses against the balloon and assists the balloon in stabilizing the area of tissue of the heart wall where the lead tip is attached.
6. The method for lead tip removal according to claim 1 wherein the step (a) further comprises a step of:
cutting through a scar tissue located near the lead tip with a cutting source located in the sheath tip.