| http://www.w3.org/ns/prov#value | - ice 8 for holding the spring 2 in position in the urethra U at the level of the stenosis St, which device consists of a ring 8 made of shape memory alloy, having longitudinal openings 9 facilitating its radial expansion, and capable of being covered by a sheath 10 of synthetic material, in particular of silicone, open at both ends in order to guarantee passage of fluids through the ring 8.
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