US 9,808,362 B2
Stent fabricated from polymer composite toughened by a dispersed phase
Syed F. A. Hossainy, Hayward, CA (US); David C. Gale, Kennesaw, GA (US); Stephen Dirk Pacetti, San Jose, CA (US); and Bin Huang, Pleasanton, CA (US)
Assigned to Abbott Cardiovascular Systems Inc., Santa Clara, CA (US)
Filed by Abbott Cardiovascular Systems Inc., Santa Clara, CA (US)
Filed on May 14, 2015, as Appl. No. 14/712,647.
Application 14/712,647 is a division of application No. 11/827,180, filed on Jul. 10, 2007, granted, now 9,089,627.
Claims priority of provisional application 60/830,211, filed on Jul. 11, 2006.
Prior Publication US 2015/0351942 A1, Dec. 10, 2015
Int. Cl. A61F 2/86 (2013.01); A61L 31/10 (2006.01); A61L 31/12 (2006.01)
CPC A61F 2/86 (2013.01) [A61L 31/10 (2013.01); A61L 31/129 (2013.01); A61F 2210/0076 (2013.01); A61F 2230/0069 (2013.01)] 4 Claims
 
1. A balloon expandable stent mounted about a balloon disposed on a catheter, the stent comprising:
a scaffold including a pattern of interconnecting structural elements,
wherein the scaffold is fabricated from a blend of poly(L-lactide) (PLLA) matrix polymer, a random copolymer of poly(L-lactide-co-caprolactone), and a compatibilizer which is a block copolymer of poly(L-lactide) and polycaprolactone, and
wherein the poly(L-lactide-co-caprolactone) random copolymer is at least 10 wt % of the blend and the caprolactone is at least 20 wt % of the poly(L-lactide-co-caprolactone) random copolymer and;
a coating on the scaffold, wherein the coating comprises a drug dispersed within a polymeric carrier.