Fig. 2.

JetValve mandrel scaling and customization. (a) Digital photograph, (left) of 3D printed shielding (upper row) and leaflet (lower row) JetValve mandrels and scaffolds ranging from 30 mm to 3 mm in diameter. Scanning electron microscope images, (right) of miniaturized JetValve mandrels and scaffold, 750 μm in diameter. (b) Shielding mandrel modification for JetValve scaffolds with sinus bulges. The shielding mandrel was compartmentalized into individual, symmetric sinus component “inserts” which could be fixed to a housing sinus “core,” (left). Mandrels were removed from scaffolds without disrupting the structure, digital photographs (right), by removing the connections of the core and inserts.