Methods of selecting or designing an implant to be used in a patient are provided. A shield assembly is formed as a generally planar sheet with long side edges and short end edges and a slot at a central extent for receiving the wings of the needle assembly when held together and adapted to be placed beneath the wings above a patient’s skin. The system and method also permits gesturesbehaviors associated with a 3D model to automatically generated so that the gesturesbehaviors may be applied to any 3D models. Design packages use these components to specify, in a single source, the definition of a product that will support various views for various needs and purposes. The reader comprises a scanner, housing structure and an optional transparent sterile sheath.