fig3

From: The biomechanics and prevention of vein graft failure in coronary revascularization

Figure 3. Evolution of external vein graft stent design. (A) Knitted fabric stent of polyethylene, polypropylene, and Teflon^[20]. (B) Polytetrafluoroethylene (PTFE) sheath applied to proximal rabbit jugular vein graft^[17]. (C) Loose-fitting external polyester stent (above) and polyglactin (Vicryl) sheath (below)^[22]. (D) Expandable braided cobalt-chromium alloy stent^[33]. (E) Poly L-lactide-ε-caprolactone (75/25) copolymer (P (LA/CL)) mesh^[34]. (F) Electrospun poly(ester urethane)urea (PEUU) stent^[36]. (G) Extent (Vascutek Ltd, Inchinnan, Scotland) external Dacron stent^[47]. (H) Knitted nitinol eSVS mesh (Kips Bay Medical Inc, Minneapolis, MN, USA)^[48]. (I) Braided cobalt-chromium VEST (Vascular Graft Solutions Ltd, Tel Aviv, Israel)^[50]. Photographs adapted from respective references.