Operation navigation is one of the important compositions of minimally invasive surgery technology. Operation navigation is one of the important compositions of minimally invasive surgery technology. It is a hotspot studied at home and abroad. The navigation products have been studied and applied at abroad, but they are still exploring at home.The article introduces the concept, composition and application of the operation navigation system briefly. Directing against the difficulty of interlocking intramedullary nails location in femoral shaft fracture operation, the fact that the necessity of using operation navigation system is expounded. And the feasibility of using femoral shaft fracture operation navigation and the relevant researches are discussed. It is doable for the navigation system to be used in fixing interlocking intramedulary nail in our laboratory.

The China Mechanical Virtual Human (CMVH) is a human musculoskeletal biomechanical simulation platform based on China Visible Human slice images; it has great realistic application significance. In this paper is introduced the construction method of CMVH 3D models. Then a simulation system solution based on Creator/Vega is put forward for the complex and gigantic data characteristics of the 3D models. At last, combined with MFC technology, the CMVH simulation system is developed and a running simulation scene is given. This paper provides a new way for the virtual reality application of CMVH.
Algorithms ; Anatomy, Cross-Sectional ; Biomechanical Phenomena ; China ; Computer Graphics ; Computer Simulation ; Humans ; Imaging, Three-Dimensional ; methods ; Models, Biological ; Muscle, Skeletal ; anatomy & histology ; physiology ; Software ; User-Computer Interface ; Visible Human Projects