Fig. 3. Close-up of covered, double knitted stents. The membrane is sandwiched between an inner (black arrow) and an outer layer (white arrow) of nitinol mesh. Note the ‘hooked wire’ or ‘D-weave’ construction, which allows flexion of the stent without straightening forces.

Int J Gastrointest Interv 2020;9:99~105 https://doi.org/10.18528/ijgii200005

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