A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/06 (2006.01)
Patent
CA 2537781
In general, the invention is directed to devices and methods that are useful for surface preparation of implantable medical devices. In the case of a vascular graft, the invention presents devices and methods that enhance endothelial cell seeding by providing recesses in the luminal surface that can receive endothelial cells. When the device is constructed of a material such as expanded polytetrafluoroethylene (ePTFE), the recesses may be created by physical processing of the microstructures of the material. The physical processing lifts modes from the surface, forming recesses that can receive endothelial cells.
Cette invention concerne d'une manière générale des dispositifs et des procédés qui conviennent pour préparer la surface de dispositifs médicaux implantables. En cas de greffe vasculaire, cette invention présente des dispositifs et des procédés qui améliorent l'ensemencement de cellules endothéliales grâce à des rainures présentes dans la surface des lumières qui peuvent recevoir des cellules endothéliales. Lorsque ce dispositif est fabriqué dans un matériau tel que du polytétrafluoroéthylène expansé (ePTFE), les rainures peuvent être créées par un traitement physique des microstructures de ce matériau. Ce traitement physique relève des modes de la surface, formant des rainures qui peuvent recevoir des cellules endothéliales.
Rivron Nicolas C.
Trescony Paul V.
Wolf Michael F.
Gowling Lafleur Henderson Llp
Kips Bay Medical Inc.
Medtronic Inc.
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