To visualize the stress distribution of the compression tests, a finite element analysis (FEA) of a single hollow microneedle was performed via Ansys 2024 R2 using the CAD model with a load force of 2 N on the tip surface. The estimated values of the resin parameters were 1150 kg/m 3 for density, 0.35 for Poisson's ratio, and 3.78 × 10 9 Pa for Young's modulus, respectively. The resultant equivalent von-Mises stress was depicted in Figure , indicating that the highest stress concentration occurred at the tip of the microneedle (estimated around 2.14 × 10 8 Pa) and gradually decreased along the shaft .