| abstract |
A vascular piece (20) for closing an incision in a blood vessel includes a base layer (32) of expanded polytetrafluoroethylene (PTFE) with an outer coating of biocompatible elastomeric material (34) such as polyurethane at least the bleeding from the suture holes made (28). Suture guide lines (28) on the abluminal side of the PTFE base layer, before application of the elastomeric coating, facilitate correct and consistent placement of sutures. A dye is added to the elastomeric coating to identify the abluminal side of the vascular part. |