Articles, compositions, and methods for sutureless implants
A first process includes suturelessly fixing a surface-modified polyester textile to Nitinol wire. The surface-modified polyester textile includes a textile of a polyester having a modified surface that provides surface crosslinkable groups. A first composition includes a Nitinol layer, a passivation layer bound to the Nitinol layer, a surface-modified polyester layer, and a tie layer binding the surface-modified polyester layer to the passivation layer. A first implantable device includes a Nitinol wire, a passivation layer bound to the Nitinol wire, a surface-modified polyester textile, and a tie layer binding the surface-modified polyester textile to the passivation layer such that the surface-modified polyester textile is suturelessly fixed to the Nitinol wire. A second implantable device and a second composition include a polymer of glycerol and sebacic acid including a catechol group. A second process includes forming a polymer of glycerol and sebacic acid including a catechol group.
1 . An implantable device comprising a first polymer of glycerol and sebacic acid, the first polymer of glycerol and sebacic acid comprising a catechol group.
2 . The implantable device of claim 1 further comprising Nitinol.
3 . The implantable device of claim 2 , wherein the first polymer of glycerol and sebacic acid is coated on the Nitinol.
4 . The implantable device of claim 3 , wherein the catechol group is bound to the surface of the Nitinol, thereby passivating the Nitinol.
5 . The implantable device of claim 1 , wherein the implantable device is a sutureless graft.
6 . The implantable device of claim 1 further comprising a Nitinol wire, a passivation layer comprising the first polymer of glycerol and sebacic acid, a surface-modified polyester textile, and a tie layer, wherein the passivation layer is bound to the Nitinol wire, the tie layer binds the surface-modified polyester textile to the passivation layer such that the surface-modified polyester textile is suturelessly fixed to the Nitinol wire, and the surface-modified polyester textile comprises a textile of a polyester having a modified surface that provides surface crosslinkable groups.
7 . The implantable device of claim 6 , wherein the polyester is selected from the group consisting of polyethylene terephthalate (PET), polylactic acid (PLA), polyglycolic acid (PGA), poly(lactic-co-glycolic acid) (PLGA), polycaprolactone (PCL), and polyhydroxyalkanoate (PHA).
8 . The implantable device of claim 6 , wherein the catechol groups suturelessly fix the first polymer of glycerol and sebacic acid of the passivation layer to the surface of the Nitinol wire.
9 . The implantable device of claim 6 , wherein the tie layer comprises a second polymer of glycerol and sebacic acid bound to the surface-modified polyester textile by ester bonds.
10 . The implantable device of claim 6 , wherein the tie layer comprises a urethane-crosslinked polymer of glycerol and sebacic acid bound to the surface-modified polyester textile and to the passivation layer by urethane bonds.
11 . The implantable device of claim 1 , wherein the first polymer of glycerol and sebacic acid is elastomeric, non-immunogenic, and resorbable, has a chemical structure selected to match a compliance of a tissue or other substrate, and acts as an adhesive bond-line or tie layer for the implantable device.
12 . A composition comprising a polymer of glycerol and sebacic acid, the polymer of glycerol and sebacic acid comprising a catechol group.
13 . A process comprising suturelessly fixing a surface-modified polyester textile to Nitinol wire, wherein the surface-modified polyester textile comprises a textile of a polyester having a modified surface that provides surface crosslinkable groups.
14 . The process of claim 13 , wherein the polyester is selected from the group consisting of polyethylene terephthalate (PET), polylactic acid (PLA), polyglycolic acid (PGA), poly(lactic-co-glycolic acid) (PLGA), polycaprolactone (PCL), and polyhydroxyalkanoate (PHA).
15 . The process of claim 14 , wherein the suturelessly fixing comprises modifying an original surface of the textile of the polyester to form the surface-modified polyester textile, wherein the surface crosslinkable groups include surface hydroxy groups and surface carboxyl groups.
16 . The process of claim 15 , wherein the modifying comprises surface treating the original surface of the textile of the polyester by exposing the original surface to sodium hydroxide and hydrochloric acid to break surface ester groups and form the surface hydroxy and carboxyl groups.
17 . The process of claim 15 further comprising coupling a first polymer of glycerol and sebacic acid to the surface-modified polyester textile.
18 . The process of claim 17 , wherein the coupling comprises crosslinking the first polymer of glycerol and sebacic acid to the surface hydroxy groups of the surface-modified polyester textile by a diisocyanate crosslinker.
19 . The process of claim 17 , wherein the suturelessly fixing comprises passivating the Nitinol wire with a passivation layer comprising a second polymer of glycerol and sebacic acid comprising catechol groups.
20 . The process of claim 19 , wherein the catechol groups bind the second polymer of glycerol and sebacic acid to the Nitinol wire.
21 . The process of claim 20 , wherein the first polymer of glycerol and sebacic acid serves as a tie layer between the passivation layer and the surface-modified polyester textile.