Read e-book online Virtual Prototyping Bio Manufacturing in Medical PDF

By Bopaya Bidanda, Paulo Jorge Bártolo

ISBN-10: 0387334297

ISBN-13: 9780387334295

ISBN-10: 0387688315

ISBN-13: 9780387688312

The unique function of RP was once to verify the form and consider of thought layout, yet options in RP now let for the advance of subtle scientific units reminiscent of catheters, stents, drug supply platforms, syringes and cardio-vascular units, and extra. RP has moved past scientific units, as surgeons now frequently use RP types to brainstorm options for surgical procedures. This publication provides new makes use of for speedy prototyping in state of the art clinical applications.

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Extra info for Virtual Prototyping Bio Manufacturing in Medical Applications

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To provide a meaningful virtual bone surgery system with realistic force feedback and visual effects, there are several requirements that must be met: 1. The medical data obtained from image acquisition must be processed to minimize noise and irrelevant data (Jackson et al. 2002; Niu et al. 2005). This data processing must be done before the bone surgery simulation. 2. In order to feed appropriate sensorial inputs to the human perceptual system, the simulation system must update the data at very different frequencies: about 30 Hz for visual rendering and above 1k Hz for haptic response (Mark et al.

Human bone; 2. It does not represent the 3D shape of a virtual tool; 3. g. sharp edges on the surface; Fig. 14 Haptic rendering by virtual proxy (Zilles and Salisbury, 1995) 40 M. C. Leu et al. 4. , entering a small hole with a large tool (Niu and Leu 2007). Multi-point collision detection methods were developed more recently (McNeely et al. 1999; Petersik et al. 2002). These methods handle 3D shapes using multiple points on the surface of the tool. With these methods, more realistic simulations of tools and tool-object interaction can be achieved, and the drawbacks of the singlepoint approach can be overcome.

The current surgical tool location and its neighborhood). 2. The region of interest is rendered in high resolution, meaning that the cells in the region are subdivided into sub-cells and the surface is extracted at the sub-cell level using the marching cube algorithm. 3. The rest regions are rendered in lower resolution. The cells in these regions are merged to form coarser cells. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Fig. 9 The marching cube algorithm for surface rendering of voxel data 2 Virtual Bone Surgery 33 Trade-off exists between surface quality and interactivity.

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Virtual Prototyping Bio Manufacturing in Medical Applications by Bopaya Bidanda, Paulo Jorge Bártolo

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