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 and configured to provide sole support for a single elliptical frame that is configured to cover an entry point of the vascular dissection;
the single elliptical frame directly attached to the anchoring element, the single elliptical frame being 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 is configured to cover a portion of the circumference of the first vessel.
11. The device of claim 1 , wherein the single elliptical frame is configured to be supported against the wall of the first vessel only by one or more support elements that are attached to the anchoring element.
12. A device for treating a vascular dissection, comprising:
an anchoring element configured to be deployed outside a first vessel within a second vessel in communication with the first vessel having the vascular dissection and configured to provide a sole support for a cover of an entry point into the dissection; and
the cover directly attached to the anchoring element, the cover being configured to cover only a portion of a circumference of the first vessel and over the entry point into the dissection, the cover being configured to at least substantially reduce blood flow into the entry point, wherein the entry point into the dissection is alongside and distal to an opening into the second vessel.
13. The device of claim 12 , wherein the cover is sufficiently rigid to be self-supporting within the first vessel.
14. The device of claim 12 , wherein the anchoring element and the cover are collapsible into a first collapsed state for positioning within a catheter and are expandable to a second expanded state.
15. The device of claim 12 , wherein the cover is biased to deflect against a vessel wall surrounding the entry point into the dissection.
16. The device of claim 12 , further comprising a frame supporting the cover, the frame being attached to the anchoring element.
17. The device of claim 16 , wherein the frame comprises an elliptical shape.
18. The device of claim 16 , wherein the frame is integral with the cover.
19. The device of claim 16 , wherein the cover is attached to the frame with a fastener.
20. The device of claim 16 , wherein the cover is molded onto the frame.
21. The device of claim 12 , wherein the anchoring element is a stent.
22. The device of claim 12 , wherein the anchoring element comprises at least one of a coil, hook, barb, balloon, stent graft, screw, or staple.