An illumination device is described containing optical fibers that transmit electromagnetic energy from a source to a target. Additional optical fibers return reflected electromagnetic energy from the target. High-level electromagnetic energy can be used for cutting, reforming, or treating a surface....http://www.google.fr/patents/US7578622?utm_source=gb-gplus-shareBrevet US7578622 - Contra-angle rotating handpiece having tactile-feedback tip ferrule
Contra-angle rotating handpiece having tactile-feedback tip ferrule
