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Fig. 2 | BMC Urology

Fig. 2

From: Newly designed solid coupling medium for reducing trapped air pockets during extracorporeal shock wave lithotripsy_ a phantom study

Fig. 2

a Uneven surface and b smooth surface using semi-liquid gel and icPad on treatment head. c Comparisons of trapped air pockets between icPad and semi-liquid gel. Apparent air pockets were seen on experiments (E) using semi-liquid gel (E1–E3). No obvious air pockets were observed in the experiments using icPad (E4–E6) and remained almost air-free after sliding the icPad (E7–E9)

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BMC Urology

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