Valiant devices

The Medtronic Talent device is a stent graft constructed from a plain woven polyester fabric and a nitinol stent frame. The bifurcated device for the abdominal aorta has a bare suprarenal stent, but no hooks or barbs. The thoracic stent graft has been replaced by the Valiant device (see below). Early Talent devices had a rigid longitudinal bar that was meant to provide columnar support. However, this component signihcantly decreased the flexibility of the device, and so has been discontinued in more recent models. 

Anaconda device, 662-3 AneuRx device, 651-3 Aorfix device, 661 commercial stent-graft devices for AAA and TAA repair, 649-50 Cook Zenith Flex stent graft, 658 Endurant II and Valiant devices, 653-6... 

V-Loc 180 wound closure device, 392 vacuum-remelted (VM) process, 304 Valiant devices, 653-6 Valsalva aortic root graft, 454 Valsalva sinuses, 486 Vascufll monofilament, 295 vascular endothelial growth factor (VEGF),467... 

The first tests were carried out in 1957 at Operation Grapple in the middle of the Pacific, in what was probably the largest peacetime post-war operation ever undertaken by the services (and notable for the large number of National Service persoimel involved — National Service being a form of conscription for young men, soon to be abolished). AH the tests were carried out as air drops from a Valiant bomber, high over the Pacific, so as to minimise fallout. The devices themselves were all fitted inside the Blue Danube bomb casing. 

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