Self-healing graft material and method of use thereof
AssigneeCook Medical Technologies LLC
InventorsRalf Spindler, Davorin Kevin Skender
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Abstract
The present disclosure relates to a graft material including a self-healing polymer layer and to implantable medical devices including such a graft material. The invention also relates to methods of using and manufacturing such graft materials and devices. In one embodiment, the implantable medical device is a stent graft.
Claims19
A stent graft comprising:
- an expandable stent having a luminal and an abluminal surface;
- and
- a graft disposed on at least one of the luminal and the abluminal surface;
- wherein the graft comprises a first layer comprising a self-healing polymer material;
- and wherein the self-healing polymer is a cross-linked co-polymer of a diamine and acrylic acid having a mixture of reversible hydrogen bonds and permanent covalent crosslinks.
A stent graft comprising a stent and graft material, the graft material comprising a first layer comprising a self-healing polymer material and a second layer comprising a polymer selected from the group consisting of polytetrafluoroethylene, electro-spun polytetrafluoroethylene, expanded polytetrafluoroethylene, polyethylene terephthalate, polyester, polyurethane and fluorinated ethylene propylene, wherein the second layer is disposed on the first layer;
- and wherein the self-healing polymer is a cross-linked co-polymer of a diamine and acrylic acid having a mixture of reversible hydrogen bonds and permanent covalent crosslinks.
A stent graft comprising:
- an expandable stent comprising a tubular body with a lumen extending therethrough and having a luminal and an abluminal surface;
- and
- a graft disposed on at least one of the luminal and the abluminal surface;
- wherein the graft comprises:
- a first layer comprising self-healing polymer, wherein the self-healing polymer is a cross-linked co-polymer of a diamine and acrylic acid having a mixture of reversible hydrogen bonds and permanent covalent crosslinks;
- a second layer comprising electro-spun polytetrafluoroethylene or expanded polytetrafluoroethylene;
- and
- a third layer comprising electro-spun polytetrafluoroethylene or expanded polytetrafluoroethylene,
- wherein the first layer is disposed between the second layer and the third layer.
Dependencies are inferred from the claim text.