Finite Element Analysis-Based Study on the Anti-Slip Performance of Titanium Hemostatic Clips

Abstract

This study employs finite element analysis (FEA) using ABAQUS to establish a hemostatic clip-blood vessel contact model, investigating the effect of different friction coefficients on the clamping stability and relative slip behavior of the clip. Simulation results indicate that within a small displacement range (0–0.6 mm), the interface between the clip and the vessel remains stable without significant slip. However, when the clip displacement exceeds 0.6 mm, relative slip increases significantly, with lower friction coefficients (0.38 and 0.4) making slippage more likely, while higher friction coefficients (0.5 and 0.53) effectively suppress slip and enhance clamping stability. Further analysis reveals that as the friction coefficient increases, the critical displacement rises from 0.69 mm to 1.0031 mm, and the critical force increases from 0.009297 N to 0.011857 N, indicating that a higher friction coefficient improves clamping force and reduces slip. This study provides theoretical guidance for optimizing the friction characteristics of hemostatic clips, contributing to their stability and reliability in clinical applications.