Predictive mechanics-based model for depth of cut (DOC) of waterjet in soft tissue for waterjet-assisted medical applications

Abstract

The use of waterjet technology is now prevalent in medical applications including surgery, soft tissue resection, bone cutting, waterjet steerable needles, and wound debridement. The depth of the cut (DOC) of a waterjet in

Advanced cutting techniques for solid food: Mechanisms, applications, modeling approaches, and future perspectives

“…Generally, the depth of cut (DOC) is essential in waterjet cutting to avoid deeper deterioration. A waterjet cutting FE model was established to simulate the DOC of soft tissue, which contained the influence factors such as different tissue stiffness, needle diameters, and flow rates (Babaiasl et al., 2020). As shown in Figure 7e, the tissue and the needle meshed by Patch Conforming Tetra method and Hex Dominant method were built in a 40 mm fluid‐soft solid interaction cube model, which was calculated by CFX and Transient Structural Solver in ANSYS.…”

“…Although UVA cutting is a processing manner involving contact, it has the property of self‐cleaning due to the high frequency vibration, preventing the phenomenon of samples adhesion to the cutter surface and reducing the contamination between the blade and section (Chemat et al., 2011). Noncontact cutting techniques, such as laser and waterjet cutting, possess the advantages of high cutting precision, large yield, superior section appearance, and low contamination and are gradually applied in food processing and medical applications (Babaiasl et al., 2020; Panchev et al., 2011). Laser cutting can export laser heating on the workpiece surface to increase the local temperature, which is beneficial to reduce cutting force and promote material separation simultaneously (Liao et al., 2019).…”