| 摘要 |
<p>The device has an anchoring element (20) movable relative to a base (10) in a direction parallel to an axis (Z) of the base. The anchoring element includes two arms (24a, 24b) located respectively on either side of a central base (22). Each arm is intended to pivot relative to the central base towards the base of the anchoring element from a deployed position to a retracted position, where the size of the anchoring element in a plane normal to the axis of the base is less in the retracted position than in the deployed position.</p> |
