| 摘要 |
<p>A rod (7) is initially straight. However, the segments (3,32,34,36,38,40 and 42) are able to be moved such that there is a cross over at two locations. Segments (14) can start off with an initial straight shape and can be brought into a curved configuration. The segments are hollow and a camera (54) can be manipulated to extend out through opposed elongate openings (48) in each segment.</p> |
