Results of basic property tests
GWs
BENDING
TRUwire had the lowest tip friction, while Jagwire Revolution had the highest tip friction (Fig. Results of basic property tests (Left to right; Mean values of estimated mechanical tests.Data are presented as mean ± standard deviation.VisiGlide 2 and TRUwire showed similar properties in tip friction, tip load, and bending force. Even if the outer diameter of the tip and shaft of the 0.025- inch GWs were similar, the lower the tip friction and the higher the tip load, the more useful it might be to enter the desired biliary lesion and find a way after entering. Also, the higher the bending force, the more useful it could be to maintain the path for insertion or exchange of biliary stents or balloons. Based on these experimental bench tests, we assumed that the newly developed 0.025-inch GW would show similar performances with a presented higher performance GW, VisiGlide 2 in selective biliary cannulation during ERCP.