| 摘要 |
<p>A prosthesis 1 has a tubular sleeve 10 with a movable fenestration zone in the side wall, comprising a fenestration 2 with a peripheral support 3, a planar portion 4 extending around the fenestration and supported by resilient member 6, and a second portion 9 extending from around the outer edge of the planar portion to the main sleeve 10 at junction 5. The fenestration zone is movable due to the second portion acting as an invertible collar for the fenestration, which may adopt an outwardly everted, neutral or inverted configuration (see figure 2). The resilient support 6 may be a ring with spring sections 20, 21, 22 to facilitate tensioning of the planar member. The supports may be made from nitinol or PEEK.</p> |
