Abstract
The following quote was obtained by the news editors from the background informa tion supplied bythe inventors: “There are many structures, natural or man-made, that contain smaller tubular structures.An example of such a structure occurri ng in nature is the human body, which has tubular structures suchas the intesti ne and oesophagus. An example of a man made structure may be a building having a networkof plumbing pipework. It is often necessary to survey the inside of the tubular structures whilst in situ.However, where the tubular structures are ve ry long and/or torturous and therefore difficult to reach, orin cases such as t he human body where it is necessary to be as minimally invasive as possible, a d eviceis required that can easily manoeuvre along the inside of the tubular stru cture whilst being controlledexternally.
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