Self cleaning devices, systems and methods of use
AssigneeCook Medical Technologies LLC
InventorDavid D. Grewe
Life of this patent
Estimating the term…
Abstract
The invention relates to medical devices, systems and methods for preventing the embolic material flowing about a junction of at least one branch blood vessel and another blood vessel from entering the other blood vessel. The device includes a self cleaning flexible filter and a frame. The external surface of the filter is configured to temporarily trap at least some of the embolic material flowing about the junction as a result of the blood inflow though the filter. The filter is also configured to expel the trapped embolic material into the other blood vessel.
Claims23
A self cleaning device, comprising:
- a first flexible filter having a first end, a second end, a first external surface, and a first filter release force, the first end configured to reside at or near a junction of at least one branch blood vessel and another blood vessel, and the second end configured to extend at least partially within the other blood vessel;
- and
- a first frame positioned at least at the first end of the first filter and configured to hold the first end of the first filter at the junction of the at least one branch blood vessel and the other blood vessel;
- where the first external surface of the first filter is configured to temporarily trap at least some of the embolic material flowing about the junction of the at least one branch blood vessel and the other blood vessel as a result of blood inflow through the first filter, and where the first external surface of the filter is further configured to expel the trapped embolic material into the other blood vessel as a result of the first filter release force.
A system, comprising:
- a self cleaning flexible filter having a first end, a second end, an external surface, and a filter release force, the first end configured to reside at or near a junction of at least one branch blood vessel and another blood vessel, and the second end configured to extend at least partially within the other blood vessel, where the external surface of the filter is configured to temporarily trap at least some of the embolic material flowing about the junction as a result of blood inflow through the filter, and wherein the external surface of the filter is further configured to expel the trapped embolic material into the other blood vessel as a result of the filter release force;
- a frame positioned at least at the first end of the filter and configured to hold the first end of the filter at the junction;
- a tubular member configured to hold the filter, the frame or both;
- and
- at least two support elements.
A method of preventing embolic material flowing about a junction of at least one branch blood vessel and another blood vessel from entering the at least one branch blood vessel, the method comprising:
- placing at the junction a device comprising
- a self cleaning flexible filter, the flexible filter having a first end, a second end, an external surface, and a filter release force, the first end configured to reside at or near the junction, and the second end configured to extend at least partially within the other blood vessel, and
- a frame positioned at least at the first end of the filter and configured to hold the first end of the filter at the junction;
- and
- temporarily trapping on the external surface of the filter at least some of the embolic material flowing about the junction as a result of blood inflow though the filter;
- and
- via a release force expelling the embolic material from the external surface of the filter into the other blood vessel.
Dependencies are inferred from the claim text.