Percutaneous method and device to treat dissections
Some embodiments are directed to methods and systems for percutaneously treating dissections in a patient's vasculature, such as, without limitation, the aorta. The method can include deploying a catheter containing a collapsed anchoring element, frame, and cover through a first vessel to an entry point of the dissection. The anchoring element can be secured to the second branch vessel. The frame can be expanded in the first branch vessel. The cover can be unfolded over at least a portion of the entry point. The cover then reduces blood flow into the entry point.
1. A device for treating a vascular dissection, comprising:
an anchoring element configured to be deployed outside of a first vessel within a second vessel in communication with the first vessel having the vascular dissection, the anchoring element having a generally tubular structure comprising a first end and a second end, the first end having a first opening into the first vessel which defines a first plane;
a single elliptical frame that is configured to cover an entry point of the vascular dissection, a circumference of the elliptical frame being substantially coplanar with the first opening, the single elliptical frame attached to the anchoring element and configured to conform to a wall of the first vessel; and
a cover supported by the single elliptical frame.
2. The device of claim 1 , wherein the single elliptical frame is biased to deflect against the wall surrounding the entry point to the vascular dissection.
3. The device of claim 1 , wherein the cover is biased to deflect against the wall surrounding the entry point into the dissection.
4. The device of claim 1 , wherein the device is collapsible into a first collapsed state for positioning within a catheter and is expandable to a second expanded state.
5. The device of claim 1 , wherein the anchoring element is a stent.
6. The device of claim 1 , wherein the anchoring element comprises at least one of a coil, hook, barb, balloon, stent graft, screw, or staple.
7. The device of claim 1 , wherein the single elliptical frame is integral with the cover.
8. The device of claim 1 , wherein the cover is attached to the single elliptical frame with a fastener.
9. The device of claim 1 , wherein the cover is molded onto the single elliptical frame.
10. The device of claim 1 , wherein the single elliptical frame directly attached to the anchoring element.
11. A device for treating a vascular dissection, comprising:
an anchoring element configured to be deployed outside of a first vessel within a second vessel in communication with the first vessel having the vascular dissection, the anchoring element having a generally tubular structure comprising a first end and a second end, the first end having a first opening into the first vessel; and
a single elliptical frame that is configured to cover an entry point of the vascular dissection, and conform to a wall of the first vessel; and
a cover supported by the single elliptical frame,
wherein the first end of the anchoring element is attached to the elliptical frame such that the first opening is positioned between a proximal end and a distal end of the elliptical frame.
12. The device of claim 11 , wherein the device is configured such that when deployed, the first opening is positioned between the proximal end of the elliptical frame and an entry point of the dissection.
13. The device of claim 11 , wherein the frame further comprises a central strut connected to both proximal and distal ends of the elliptical frame.
14. The device of claim 13 , wherein the first end of the anchoring element is attached to the central strut.
15. A device for treating a vascular dissection, comprising:
an anchoring element configured to be deployed outside of a first vessel within a second vessel in communication with the first vessel having the vascular dissection, the anchoring element having a generally tubular structure comprising a first end and a second end, the first end having a first opening into the first vessel;
a single elliptical frame that is configured to cover an entry point of the vascular dissection,
the single elliptical frame being configured to conform to a wall of the first vessel; and
a cover supported by the single elliptical frame,
wherein the first end of the anchoring element is attached to the elliptical frame such that the first opening is directly attached to a proximal end of the elliptical frame.