Method for treating aneurysms
AssigneeMerlin Md Pte Ltd.
InventorLeon Rudakov
Life of this patent
Estimating the term…
Abstract
A method for treating a bifurcation aneurysm, the aneurysm having an aneurysm neck, by positioning a first mechanically expandable device in a first bifurcation branch proximate to the aneurysm neck; positioning a second mechanically expandable device in a second bifurcation branch proximate to the aneurysm neck; and expanding the mechanically expandable devices to constrict the aneurysm neck such that blood circulation to the bifurcation aneurysm is reduced.
Claims44
A method for treating a bifurcation aneurysm, the aneurysm having an aneurysm neck, the method comprising:
- positioning a first mechanically expandable device in a first bifurcation branch proximate to the aneurysm neck;
- positioning a second mechanically expandable device in a second bifurcation branch proximate to the aneurysm neck;
- and
- expanding the mechanically expandable devices to constrict the aneurysm neck such that blood circulation to the bifurcation aneurysm is reduced.
A method for treating a trifurcation aneurysm, the aneurysm having an aneurysm neck, the method comprising:
- positioning a first mechanically expandable device in a first trifurcation branch proximate to the aneurysm neck;
- positioning a second mechanically expandable device in a second trifurcation branch proximate to the aneurysm neck;
- positioning a third mechanically expandable device in a third trifurcation branch proximate to the aneurysm neck;
- and
- expanding the mechanically expandable devices to constrict the aneurysm neck such that blood circulation to the trifurcation aneurysm is reduced.
A system for treating a bifurcation aneurysm, the aneurysm having an aneurysm neck, the system comprising:
- a first mechanically expandable device positioned in a first bifurcation branch proximate to the aneurysm neck;
- a second mechanically expandable device positioned in a second bifurcation branch proximate to the aneurysm neck;
- and
- wherein the mechanically expandable devices are expanded to constrict the aneurysm neck such that blood circulation to the bifurcation aneurysm is reduced.
A system for treating a trifurcation aneurysm, the aneurysm having an aneurysm neck, the system comprising:
- a first mechanically expandable device positioned in a first trifurcation branch proximate to the aneurysm neck;
- a second mechanically expandable device positioned in a second trifurcation branch proximate to the aneurysm neck;
- a third mechanically expandable device positioned in a third trifurcation branch proximate to the aneurysm neck;
- and
- wherein the mechanically expandable devices are expanded to constrict the aneurysm neck such that blood circulation to the trifurcation aneurysm is reduced.
A mechanically expandable device for treating a bifurcation or trifurcation aneurysm, the aneurysm having an aneurysm neck, the device comprising:
- a generally tubular structure having an exterior surface defined by a plurality of interconnected struts having interstitial spaces therebetween, said generally tubular structure expandable from a first position to a second position, and said tubular structure is expanded radially outwardly to the second position such that the exterior surface of said structure engages with the inner surface of a bifurcation or trifurcation branch so as to maintain a fluid pathway through said branch and to constrict the aneurysm neck such that blood circulation to the aneurysm is reduced;
- wherein a proximal portion of the struts are elongated relative to the remaining struts such that the device is tapered towards its distal end after deployment in the branch.
A balloon for expanding a mechanically expandable device for treating a bifurcation or trifurcation aneurysm, the balloon being connected to a balloon catheter for inflation, and the device comprising a interconnected struts at its proximal end that are elongated relative to the remaining struts of the device such that the device is tapered towards its distal end after deployment in a bifurcation or trifurcation branch;
- wherein the balloon is tapered towards its distal end after inflation, and the inflation of the balloon causes the elongated struts of the device to expand at a greater rate than the remaining struts for constricting the aneurysm neck such that blood circulation to the aneurysm is reduced.
Dependencies are inferred from the claim text.