Device for left atrial appendage occlusion

1. An implantable device for containing emboli within an atrial appendage of a patient, the device having a proximal end and a distal end and comprising:

an expandable frame comprising a plurality of supports projecting distally from a proximal hub at the proximal end toward the distal end, wherein the supports comprise proximal sections adjacent to said proximal hub and distal sections distal to said proximal sections;

a mesh barrier provided on said proximal sections of supports; and

a plurality of tissue anchors provided on said supports for engaging tissue when the device is positioned in an atrial appendage.

2. A device as in claim 1 , wherein the expandable frame comprises at least five supports.

3. A device as in claim 1 , wherein each support is movable from an axial orientation when the device is in a reduced cross section to an inclined orientation when the device is in an enlarged cross section.

4. A device as in claim 1 , wherein the mesh barrier is secured to the plurality of supports.

5. A device as in claim 4 wherein said mesh barrier is disposed over the plurality of supports.

6. A device as in claim 1 , wherein the plurality of tissue anchors are barbs having a free end inclined in the proximal direction.

7. A device as in claim 6 wherein each barb is cut from the corresponding support.

8. A device as in claim 1 wherein the plurality of tissue anchors are distal the mesh barrier.

9. A device as in claim 1 , wherein the supports are cut from a tube.

10. A device as in claim 1 , wherein the frame when expanded has a generally cylindrical shape.

11. A device as in claim 1 , wherein the supports are made of nitinol.

12. A device as in claim 1 , wherein the supports are self expanding.

13. The device of claim 1 , wherein the plurality of tissue anchors dispose the barrier to form a substantial seal between an outer periphery of the barrier and an inside surface of the atrial appendage.