FIELD: medicine.
SUBSTANCE: adjustable annuloplasty ring assembly comprises a support ring, an adjustable ring nested at least partly within the support ring, and at least one deployable pressing element for deforming the adjustable ring using the support ring as support. There are plural pressing elements which may be used at different positions around rings. Each pressing element may have a variable extents of deployment, to vary the extent of deformation of the adjustable ring, depending on the position. Each pressing element may comprise a deflectable blade, and the state of the blade may be retained by a ratchet.
EFFECT: pressing elements may be operated in a predetermined controlled sequence.
31 cl, 8 dwg
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