| 摘要 |
An anchor device which includes a pipe (16), an elongate member (18) which is partly inside the pipe and which has an end (20) which protrudes from the pipe (16), and a restraining component (22) which is engaged with the protruding end (20), and wherein the pipe (16) and elongate member (18) are shaped with a plurality of formations, along their respective lengths, so that the elongate member (16) can only be withdrawn from the tubular member by deforming the elongate member (18).
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