Figure 4.

Measurement results from in vitro testing. a) Impedance phase dip comparison between bare and gold‐electroplated inductive stent connected with a 10 pF discrete capacitor. b) Impedance phase dips and serial resistances of two 30 mm long stents (4 mm in expanded diameter) joined with capacitive pressure microsensors by conductive epoxy and laser microwelding. c) Impedance phase dips of three differently sized microwelded smart stents in vascular grafts. d) Resonant frequency shifts of a 30 mm long microwelded smart stent (6 mm in expanded diameter) over varying applied pressure in water flow.