Open Pivot Mechanical Heart Valves

Medtronic Open Pivot™ mechanical heart valves represent a fundamental change in bileaflet valve design. Other bileaflet valves use cavity pivots, which can provide areas of stasis where potential platelet aggregation can occur.4,5 Open Pivot valves, on the other hand, have no recesses or cavities where a potential thrombus can form.5,6 While cavity pivots rely on mechanical sweeping and high-velocity leakage jets, with the Open Pivot design, the unimpeded flow of blood provides for a continuous passive washing.7,8

Medtronic open pivot mechanical valves offer exceptional performance:

Remarkable thromboresistance: Continuous passive washing provides for gentle treatment of blood cells and low levels of hemolysis and thromoembolic events. 2,6,9
Excellent hemodynamics: In-vivo studies demonstrate excellent hemodynamics.2,9,10
Outstanding durability: Solid pyrolytic carbon orifice and strengthening band provides for thin yet strong orifice and large geometric orifice areas (GOAs).1,2
Easy implantability: Single plane orifice facilitates valve seating and implant regardless of suture technique.
Notably quiet: Open Pivot valves are remarkably quiet.9,11

Open Pivot AP360

The Open Pivot AP360 provides these additional features:

Supra-annular flanged cuff configuration for added flexibility, needle penetration, and conformability
Valve sizes ranging from 16 mm to 26 mm for aortic valve replacement

Open Pivot AP

The Open Pivot AP provides these additional features:

Supra-annular compact cuff configuration for excellent suturability and conformability
Valve sizes ranging from 16 mm to 26 mm for aortic and mitral valve replacement

Open Pivot Standard Aortic Heart Valve

The Open Pivot Standard Aortic Valve provides these additional features:

Intra-annular valve with generous, compliant cuff for exceptional implantability
Valve sizes ranging from 19 mm to 31 mm