The purpose of a vascular graft is to act as an artificial conduit or substitute for a diseased artery. HealthTrust members have exclusive access to a matrix which profiles features of knitted/woven grafts from two suppliers. It does not include expanded polytetrafluoroethylene (ePTFE) grafts. The matrix can be found within the contract package on the Member Portal. If you do not have access to the Member Portal, contact your local supply chain administrator or HealthTrust Account Manager to request a copy of the matrix.