Computer Aided Design

摘要: Computer-aided design (CAD) plays a key role in variety of medical applications including prosthesis design, surgical implant blood flow analysis, preoperative planning for operations, and computer-assisted surgery. CAD tools technology developed mechanical have been successfully applied to geometric modeling, visualizing, animating, analyzing the natural functional behavior anatomical structures human skeletal vascular systems. These shape modeling visualization provide significant amount information concerning object shape, dimensional parameters, component materials, material flow, interference checking. New developments virtual reality (VR) rapid prototyping (RP) technologies also enabled biomedical engineers create detailed three-dimensional (3-D) models directly from database. The immersive VR environments designers, physicians, surgeons with ability interactively manipulate 3-D displays haptic devices. In contrast, fabricated RP prototypes give realistic hard copy complex before is inserted or procedure performed. shift purely graphical interpretation displayed on computer monitor an interactive visual-tactile representation structure has deliver new level spatial understanding designers personnel. Keywords: computer-aided design; geometric models; computer-aided engineering analysis; rapid prototyping; reverse engineering; custom prosthesis; virtual environment