Simulus Semi-Rigid Annuloplasty System Heart Valve Disease


Simulus Semi-Rigid Ring and Band

Heart valve disease occurs when valves fail to open and close properly. Diseased heart valves are either narrowed (stenotic), limiting the amount of blood pumped to the rest of the body; or incompetent (regurgitant), failing to close completely and allowing blood to flow backwards into the atrium.

Heart valve repair is an effective therapy for many patients with diseased valves. A ring or band from the Simulus semi-rigid annuloplasty system can be sewn around the base of the valve where it attaches to the heart (the annulus) to support the valve repair by providing shape and stability.


The Simulus semi-rigid ring and band are available in nine sizes ranging from 24 mm to 40 mm to fit your specific need.


The Simulus semi-rigid ring and band are used for mitral valve repair. The mitral valve controls the flow of blood from your heart’s left atrium into the left ventricle.



The Simulus semi-rigid ring and band are stiff enough to restore the shape of the mitral valve annulus, yet they’re flexible enough to allow natural movement of the annulus.

When the heart contracts, a healthy mitral valve shifts from a flat shape to a saddle shape. The Simulus semi-rigid ring similarly conforms to a saddle shape, moving with the beat of the heart. This design is intended to reduce stress on the mitral valve repair.

X-ray Examinations

The Simulus semi-rigid ring and band are radiopaque, which means they show up clearly on x-rays and in other diagnostic tests. This makes it easier for your doctor to determine if the implant is doing the job it’s supposed to.

Magnetic Resonance Imaging (MRI)

The Simulus semi-rigid ring and band are considered “MR Conditional,” which means that patients can undergo MRI scanning under specified conditions for use. If you are having an MRI scan and you have a Simulus semi-rigid ring or band, be sure that your healthcare provider is aware of your implanted device.

Information on this site should not be used as a substitute for talking with your doctor. Always talk with your doctor about diagnosis and treatment information.