| 摘要 |
<p>A medical device having a tubular portion. In the wall of the tubular portion is a row of slots separated by portions of the wall referred to as 'ribs'. The device may be folded by forming a longitudinal groove in the tubular portion separating two longitudinal lobes, with a row of alternating ribs and slots located in each lobe. Each rib in one lobe is then inserted into a slot in the other lobe.</p> |
