| 摘要 |
<p>The invention concerns a gastric band (1) formed with a flexible band (2) designed to be closed in the direction of its two end parts (5, 6) with a fastening system (7, 12, 13, 15, 20) around the stomach to reduce the diamet er of the stoma opening, said band comprising an annular compression chamber wi th adjustable volume and substantially constant cross-section linked by an adjusting catheter (7) to a device adjusting (8) the internal pressure of sa id chamber to adjust its diametrical expansion. The invention is characterised in that the fastening system comprises means locking and releasing (12, 13) the ring borne by the adjusting catheter (7), enabling to ensure, from their locking position, the diametrical release of the ring by the relative moveme nt of the two end parts. The invention is useful as a gastric implant for treating obesity (5, 6).</p> |
