An elongated segmented binding cord for reversibly housing and securing articles of manufacturing. A audio digital CODEC is provided with various parameters that when changed affect the quality of the resultant audio. Spare areas include a spare area for slipping replacement and a spare area for linear replacement. The contact layer comprises a first conductive layer of a first conduction type and a second conductive layer of a second conduction type and an interlayer which is arranged between the first and second conductive layers. A display is configured to display the ultrasound image and a virtual image of the surgical device based on the position of the surgical device in relation to the scan plane.