A wearable device assembly has a housing supporting a controller, display and indicator system thereon. A locally operated bone detector distinguishes between bone regions and contrast agent filled vessels. One pre-processing act splits the binaries into several substreams that have high local sequential correlation. The concept of DNA sequence of a document is powerful and can be used in building automated tools such as computer based processes to automatically reason and search for similarity, dissimilarity, equivalence and other relationships between structured, semi-structured and unstructured data and information. New records are inserted in a created new level. The latching member is disposed on one side of the circuit board.