Design of Virtual Spinal Fixation Surgery System Architecture

Abstract

The hierarchical-component architecture was given to efficiently implement 3D rendering and 3D interaction in virtual spinal fixation surgery environment. It consisted in data layer, user logic layer and components layer, and each layer had definite functional division. The data layer provided data support and uniform access interface for the system; the user logic layer adopted singleton pattern design; the third layer was comprised of the front-end component and haptic feedback component, where the component oriented method makes components mutually independently, improves reusability of components and contributes to the system function expansion. The hierarchical-component architecture design makes each layer or component be implemented independently and concurrently, and supports the system incremental development pattern. The finished system proves its rationality.