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Fig. 3 | CVIR Endovascular

Fig. 3

From: Temperature-induced configuration changes in hydrogel-coated coils and their relevance in embolization procedures

Fig. 3

HydroCoil configuration changes according to different water temperatures. a shows a first loop configuration (Configuration II) after only 01:03 s in a 70 °C water immersion. b shows complete coiling (Configuration III) after only 10:07 s in a 70 °C water immersion. c shows a HydroCoil during the first second after immersion at 26 °C; only a discrete strain (Configuration I) was observed after 10:07 s in a 26 °C water bath immersion (d); this HydroCoil remained without configurational changes even after several minutes (not shown). NOTE: All HydroCoils are designed with a preformed first loop at the tip of the filament (black asterisk); in normal conditions, this first loop facilitates the initial binding of the HydroCoil. This first loop should not be misinterpreted as a temperature-induced coil binding, which actually comprises the totality of the HydroCoil filament

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