| 摘要 |
<p>Two identical devices (3) are provided that each include a first or distal body (3f) for shaping a first lattice sleeve (2d) and sealingly engaging a first sheath (3d) connected to first feed means (4) for radially deforming the distal body (3f), and a second or proximal body (3s) for shaping a second lattice sleeve (2e), said proximal body being sealingly secured to a second sheath (3n) communicating with further feed means (5) separate from the first for radially deforming the proximal body (3s). Said second sleeve (2e) has a smaller diameter than the first sleeve (2d), while sealing means (3r, 3u) enable the proximal body (3s) secured to the corresponding sheath (3n) and feed means (5) to slide along the first sheath (3d) in order to adjust the distance between the distal (3f) and proximal (3s) bodies.</p> |
