Claims
- 1. A method of treating an aneurysm, comprising the steps of:
providing a device having a cover and a lateral extension, the cover and extension being movable from a collapsed position to an expanded position; advancing the device through a patient's vascular system to an aneurysm with the cover in the collapsed position; moving the lateral extension into the neck of the aneurysm and the cover over the neck of the aneurysm to isolate the aneurysm from the parental vessel.
- 2. The method of claim 1, wherein:
the providing step is carried out with the cover being a substantially flat element; and the moving step is carried out with the cover being positioned against a wall of the parental vessel around the neck of the aneurysm.
- 3. The method of claim 1, wherein:
the moving step is carried out with the lateral extension extending laterally outward from a side of the device.
- 4. The method of claim 1, wherein:
the providing step is carried out with the lateral extension forming at least one loop extending into the aneurysm.
- 5. The method of claim 1, wherein:
the providing step is carried out with the lateral extension forming 1-8 loops.
- 6. The method of claim 1, wherein:
the providing step is carried out with the cover extending around no more than half the circumference of the vessel.
- 7. The method of claim 1, wherein:
the providing step is carried out with the cover extending around no more than one third the circumference of the vessel.
- 8. The method of claim 1, further comprising the steps of:
coupling at least the lateral extension to a source of energy; and delivering the energy to the lateral extension after the introducing step.
- 9. The method of claim 8, wherein:
the coupling and delivering steps are carried out with the source of energy being RF energy.
- 10. The method of claim 1, wherein:
the providing step is carried out with the cover being wrapped around the expandable element.
- 11. The method of claim 10, wherein:
the providing step is carried out with the cover being wrapped around the expandable element without overlapping folds.
- 12. A device for treating an aneurysm, comprising:
a cover which covers the neck of the aneurysm to isolate the aneurysm from a parental vessel; and a lateral extension coupled to the cover, the lateral extension extending from the cover and into the aneurysm when the cover is positioned over the neck of the aneurysm.
- 13. The device of claim 12, further comprising:
the cover comprises a mesh; and the lateral extension comprises a loop.
- 14. The method of claim 12, wherein:
the cover is a substantially flat element which is positioned against a wall of the parental vessel around the neck of the aneurysm when the lateral extension is positioned in the aneurysm.
- 15. The device of claim 12, wherein:
the lateral extension forms 1-8 loops.
- 16. The device of claim 12, wherein:
the providing step is carried out with the lateral extension forming only one loop.
- 17. The device of claim 12, wherein:
the loop has a first side attached to the cover.
- 18. The device of claim 12, wherein:
the loop is slidable relative to the cover when the loop expands.
- 19. The device of claim 12, wherein:
the cover extends no more than about 180 degrees around a longitudinal axis of the device when expanded so that side branch vessels are not occluded by the cover.
- 20. The device of claim 12, wherein:
the cover extends no more than about 120 degrees around the longitudinal axis when expanded so that side branch vessels are not occluded by the cover.
- 21. The device of claim 12, further comprising:
a source of energy coupled to at least the lateral extension.
- 22. The device of claim 21, wherein:
the source of energy is RF energy.
- 23. The device of claim 21, wherein:
the cover does not conduct the energy when the lateral extension conducts energy from the source of energy.
- 24. The device of claim 12, wherein:
the cover comprises a mesh.
- 25. The device of claim 12, further comprising:
a delivery catheter having at least one lumen; and a first manipulator extending through the at least one lumen and releasably coupled to the lateral extension.
- 26. The device of claim 12, further comprising:
a second manipulator releasably coupled to the cover.
- 27. A method of treating an aneurysm, comprising the steps of:
providing a cover which is positioned around an expandable element in a collapsed position, the cover being covered by a sheath; advancing the cover to an aneurysm in a patient with the cover in the collapsed position; withdrawing the sheath to expose the cover; expanding the expandable member thereby expanding the cover, the cover expanding to an expanded condition, the cover being positioned over a neck of the aneurysm.
- 28. The method of claim 27, wherein:
the providing step is carried out with the cover being wrapped around the expandable element without creating folds when collapsed.
- 29. The method of claim 27, wherein:
the expanding step is carried out with the cover engaging a wall of the parental vessel around the neck of the aneurysm.
- 30. The method of claim 27, wherein:
the expanding step is carried out with the cover being attached to the wall.
- 31. The method of claim 30, wherein:
the providing step is carried out with an adhesive positioned on an outer surface of the cover and protected by the sheath during the advancing step.
- 32. The method of claim 27, wherein:
the expanding step is carried out with the cover extending no more than half the circumference of the vessel.
- 33. The method of claim 27, wherein:
the expanding step is carried out with the cover extending no more than one third the circumference of the vessel.
- 34. The method of claim 27, wherein:
the providing step is carried out with the cover having a metallic frame structure and an impermeable portion mounted to the frame, the impermeable portion being positioned to cover the neck of the aneurysm after the inflating step.
- 35. The method of claims 27, wherein:
the providing step is carried out with the sheath being folded over itself at a distal end; and the exposing step is carried out with the sheath being pulled back over itself.
- 36. The method of claim 27, wherein:
the providing step is carried out with the sheath comprising PTFE.
- 37. The method of claim 27, wherein:
the cover is mounted to a delivery catheter, the delivery catheter having a single lumen; and the advancing step is carried out with the device being advanced over a guidewire extending through the single lumen.
- 38. A device for treating an aneurysm, comprising:
a cover for covering a neck of an aneurysm a delivery catheter having an expandable element and a sheath, the cover being mounted around the expandable element, the sheath being retractable and overlying the cover thereby trapping the cover between the sheath and expandable element, the sheath being movable to a position in which the cover is exposed to permit expansion of the expandable element and the cover.
- 39. The device of claim 38, wherein:
the delivery catheter has a longitudinal axis; and the cover is wrapped around the balloon in the collapsed position without folds.
- 40. The device of claim 38, further comprising:
an adhesive on an outer surface of the cover.
- 41. The method of claim 38, wherein:
the cover has a metallic frame and an impermeable portion mounted to the frame which covers the neck of the aneurysm.
- 42. The method of claims 38, wherein:
the sheath is folded over itself at a distal end, the sheath being pulled back when exposing the cover.
- 43. The method of claim 38, wherein:
the sheath comprises PTFE.
- 44. The method of claim 38, wherein:
the delivery catheter has a single lumen which receives a guidewire;
- 45. A device for treating an aneurysm, comprising:
a proximal hub; a distal hub; and a plurality of filaments extending between the proximal and distal hubs, the filaments biasing the proximal and distal hubs towards one another when moving from a collapsed position to an expanded position.
- 46. The device of claim 45, wherein:
the plurality of filaments are 2-16 filaments.
- 47. The device of claim 45, wherein:
the plurality of filaments form a generally concave surface which covers a neck of an aneurysm when positioned in the aneurysm.
- 48. The device of claim 45, wherein:
the plurality of filaments form a generally convex surface opposite the concave surface.
- 49. The device of claim 45, further comprising:
a catheter having a lumen; and a manipulator extending through the lumen and contacting the proximal hub.
- 50. The device of claim 45, further comprising:
a source of power coupled to the manipulator.
- 51. The device of claim 50, wherein:
the source of power is an RF generator.
- 52. A device for filling an aneurysm, comprising:
a catheter having a lumen; a plurality of filaments each having a proximal end and a distal end, the plurality of filaments being coupled together at the proximal ends and each of the filaments extending to a free end at the distal end, the plurality of filaments being in a collapsed condition when positioned in the lumen of the catheter, the plurality of filaments expanding to occupy a space in an aneurysm when advanced out of the lumen in the catheter.
- 53. The device of claim 52, wherein:
the plurality of filaments are in a straightened configuration when collapsed within the catheter.
- 54. The device of claim 52, wherein:
each of the plurality of filaments forms a coil in the expanded position.
- 55. The device of claim 54, wherein:
the coils formed by the plurality of filaments each have a central axis with the central axes of the coils generally lying in a plane.
- 56. The device of claim 54, wherein:
the coils formed by the plurality of filaments each have a central axis with the central axis of the coils being angled relative to one another by about 90-120 degrees.
- 57. The device of claim 52, wherein:
the plurality of filaments are 2-4 filaments.
- 58. A method of treating a cerebral aneurysm, comprising the steps of:
providing an expandable structure movable from a collapsed shape to an expanded shape; introducing the expandable structure into a blood vessel of a patient; advancing the expandable structure through the patient's vasculature to a cerebral aneurysm while the expandable structure is in the collapsed position; moving the expandable structure into the cerebral aneurysm; expanding the expandable structure to the expanded position in the cerebral aneurysm; shrinking the wall of the aneurysm; and leaving the expandable structure in the aneurysm after the shrinking step.
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] The present application is a continuation in part of U.S. patent application Ser. No. 09/324,359 filed Jun. 2, 1999 which is hereby incorporated by reference for all purposes.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09695637 |
Oct 2000 |
US |
Child |
10729432 |
Dec 2003 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09324359 |
Jun 1999 |
US |
Child |
09695637 |
Oct 2000 |
US |