Advantages

Durability

• The leaflets of the MILTONIA valves are made of Pyrolytic Carbon over Graphite substrate and Tungsten(W) impregnation. The presence of Tungsten(W) provides better radiopacity allowing a non invasive diagnostic observation of the leaflet motion through fluoroscopy or similar methodologies.
• The Pyrolytic Carbon consists of 3-8% Silicon(Si) and this adds to the strength of the Pyrolytic Carbon.
• The Orifice ring consists entirely of Pyrolytic Carbon with a Titanium(Ti) Stiffening ring. The Titanium(Ti) Stiffening ring increases the strength multiple times and thus minimizes the risk of deformation of the Carbon rim.
• The method of Sewing cuff attachment to the Orifice allows for rotation of the sewing ring in-situ, during surgical placement.

 

Hemodynamics

• The opening angle of leaflets are 85 degree which ensures large EOA (effective orifice area) with lower pressure gradient and provides better haemodynamics.

 

Thromboresistance

• An open pivot design ensures space between the leaflet and the hinge area leading to proper passive washing of the pivot area.
• This prevents blood stasis and lowers the chances of thrombus formation.
• A Smooth Blood contact surface and a laminar flow ensures less turbulence and hence chances of eliciting platelet activation is low.

 

Implantability

• The Miltonia bileaflet valve is a low profile heart valve with minimal vertical leaflet exposure as well as an adequate posterior wall clearance.
• This minimizes the chances of coronary ostia blockage in the aortic position and the chances of subvalvular impingement in the mitral position are also reduced.
• There are two cuff variants in Aortic (compact) and Mitral (flared) for easier implantation. Valve comes with an inbuilt rotation mechanism.