| 摘要 |
<p>A recoverable article comprising an inner resilient tubular member (2) that is held out in a laterally expanded configuration by engagement with outer holdout means (6, 8), wherein the outer surface of the inner member (2) is provided with a plurality of cavities, and wherein the holdout means (6, 8) occupies the cavities so as to provide the holdout engagement, wherein the holdout means comprises at least one initiating portion (6) that is structurally different from the remaining portion that engages at least one associated cavity, whereby release of the initiating portion (6) from its cavity facilitates subsequent release of the remaining portion (8) of the holdout means.</p> |
