Patent ID: 11957354
Assignee: DEPUY SYNTHES PRODUCTS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A method for treating an aneurysm at a bifurcation, the bifurcation comprising a first passageway from a stem blood vessel to a first branch blood vessel and a second passageway from the stem blood vessel to a second branch blood vessel, the aneurysm being positioned opposite the stem blood vessel and between the first and second passageways, and the method comprising:
delivering an implant comprising a tubular lattice comprising an open proximal end, an open distal end, and an interior support structure through a catheter to the aneurysm;
expanding the open distal end and a distal portion of the tubular lattice within a sac of the aneurysm, the open distal end having a first diameter;
extending the interior support structure within the distal portion of the tubular lattice and across a neck of the aneurysm;
positioning a first opening in the tubular lattice across the first passageway, the first opening comprising a first cross sectional area defined by a perimeter of the first opening such that the first cross sectional area extends across a majority of the first passageway;
positioning a second opening in the tubular lattice across the second passageway, the second opening comprising a second cross sectional area defined by a perimeter of the second opening such that the second cross sectional area extends across a majority of the second passageway; and
expanding a proximal portion of the tubular lattice within the stem blood vessel, the proximal portion having a second diameter extending from a distal end of the proximal portion to the open proximal end, the open proximal end having a third diameter,
wherein the first diameter is greater than the second diameter,
wherein the third diameter is greater than the second diameter, and
wherein two narrow sections in a mid body section of the tubular lattice separate the first opening and second opening and extend longitudinally across the mid body section to connect the proximal portion and distal portion, each of the two narrow sections of the mid body section comprising about two smaller cells positioned longitudinally, distal and proximal to each other.