Vascular grafts are used for hemodialysis vascular access,
trauma surgery, aneurysm repair, and are commonly used for cardiovascular
bypass. The expected characteristics of the graft in these applications are: the
graft should not be thrombosed, should not cause graft hyperplasia, and the
graft's mechanical integrity should not be compromised and should meet the
surgeon's usage requirements. Grafts used in vascular surgery are of two types:
native and artificial; artificial grafts are of two types:
Polytetrafluoroethylene and Polyester. Although animal-derived (Xenograft)
grafts have been made available, they are not widely preferred today (1). New
approaches based on tissue engineering or reprocessed natural tissue continue
as clinical studies. In today's technologies, the production of artificial
vessels of 4 mm and above is available (2)
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