The gds components, which were reported as the cause of the tunneling failure, were not returned to atrium for eval; therefore, the proper functioning of the gds and sheath components cannot be verified.One possible situation for the sheath to become detached, as reported, is the use of a 1:1 sized bullet tip, which would cause extremely tight site to tunnel the graft through.A tight tunneling site as such would create friction and could cause the detachment of the gds mechanisms during tunneling.The lot history of the graft was reviewed and the product was found to have met all specifications.Hosp reported two events.Other event is 1219977-2014-00155.
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