Basic property tests of guidewires
GWs
WEST, BENDING
The GW for ERCP is structurally divided into two parts: a rigid shaft to support or guide various accessories and a hydrophilic tip area to track and enter the desired path. The recently used ERCP GWs use a monofilament or spiral coil spring for the tip portion of the Nikel Titanum alloy core, which is a shape memory alloy with a hydrophilic coating on the surface to reduce friction (Fig. Typical characteristics of guidewires. (Basic characteristics of commercially available 0.025 GWs tested prior to clinical study are described in Table Basic characteristics of 0.025-inch guidewires tested prior to clinical study.PTFE, polytetrafluoroethylene.Therefore, we measured tip friction, tip load, and bending force using a universal test machine (LS1; LLOYD Instrument Ltd., West Sussex, England) (Fig. Basic property tests for guidewires (Left to right; 