25th Southern Biomedical Engineering Conference 2009, 15 – by J. Ge, S. J. Erickson, A. Godavarty (auth.), Anthony J.

By J. Ge, S. J. Erickson, A. Godavarty (auth.), Anthony J. McGoron, Chen-Zhong Li, Wei-Chiang Lin (eds.)

This quantity provides the contributions of the 25th Southern Biomedical Engineering convention, held in may possibly 2009 in Miami, Florida. The papers of this complaints quantity current new advancements in concept, idea, software, and methods in all features of Biomedical Engineering. The extensive spectrum of issues comprises: Optical Imaging, Instrumentation, Biomaterials-Mechanical, Rehabilitation, photo Processing, Orthopedics, Nanomaterials, Algorithms – Neural, Sensors, Tissue Engineering, indications and platforms, Cardiovascular platforms, and Drug Delivery

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Extra info for 25th Southern Biomedical Engineering Conference 2009, 15 – 17 May 2009, Miami, Florida, USA

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15] have described cellular Ti-6Al-4V structures for bone implants fabricated by selective electron beam melting. A. McGoron, C. -C. ): 25th Southern Biomedical Engineering Conference 2009, IFMBE Proceedings 24, pp. 23–28, 2009. E. Murr et al. In this research article, we report on the fabrication of reticulated solid-mesh structures and monolithic solid/mesh biomedical (implant) prototypes and functionally graded monoliths by electron beam melting (EBM). These layerbuilt components fabricated by CAD-driven EBM from precursor Ti-6Al-4V powder are characterized by optical and scanning electron microscopy.

When the instrument makes contact with adhesive tissues, the rotational joint of the fingers moves and diameter of head becomes about 70 mm. Because of this specification, the proposed instrument can dissect adhesive tissues away from the esophagus. Figure 3 shows the constructed surgical instrument. Dynamic Fingers Fig. 1 Different parts of the designed instrument For evaluating the instrument, we analyzed its function with the finite element method. For finite element modeling of esophagus and the tissues around it, we attributed mechanical properties to each delicate tissue around the esophagus such as the aorta.

II. MATERIALS AND METHODS A block diagram that shows all the parts that were considered is drawn in Figure 1. That includes the ultrasound transducer, the positioning system with three stepper motors, and three driving circuits (one for each stepper motor) which are connected to the computer through the interface board. The ultrasound transducer is driven using a function generator and a power amplifier, and the relay circuit is used to switch the transducer on and off. A. Transducer Design A bowl shaped single element transducer with a fixed focal point was used in this design for its advantages over other transducer types.

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