Annuloplasty ring
Rigid, semi-rigid, or flexible prosthetic ring (e.g. cobalt-chromium bands under a polyester-covered silicone, saddle-shaped sewing cuff), sutured around the native valve annulus; distinct from the already-catalogued valve sizer (the reusable instrument used to choose the size).
How it is used
Permanent implant for mitral or tricuspid valve repair (not replacement), to restore annular size/shape and prevent recurrent dilation.
Clinical tip
Physio-type rings with a rigid anterior segment help prevent systolic anterior motion (SAM) of the mitral valve.
Sources
This entry is part of the Instriq catalog, researched and written per specialty from real web research -- never generated or invented without verification -- and reviewed skeptically and independently before publication. How this catalog is written.
History
Added to the catalog on 2026-10-15.
Dates derived from the project's public version-control history on GitHub, not a live collaborative edit log.