Medtronic Open Pivot Mechanical Heart Valves for Aortic or Mitral Valve Replacement

The unique bileaflet valve design of the Medtronic Open Pivot mechanical heart valves eliminates recesses or cavities where a potential thrombus may form.

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Design Difference

Product Features

Medtronic Open Pivot Mechanical Valves Offer Exceptional Performance

Remarkable Thromboresistance

Continuous passive washing provides for gentle treatment of blood cells and low levels 

Excellent Hemodynamics

In-vivo studies demonstrates improved hemodynamic performance following device implant.6-8

Outstanding Durability

Solid pyrolytic carbon orifice and strengthening band provides for thin yet strong orifice and large geometric orifice areas (GOAs).6,9

Easy Implantability

Single-plane orifice facilitates valve seating and implant regardless of suture technique.

Notably Quiet

Open Pivot valves are remarkably quiet.7,10

Product Details

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 to 26 mm for aortic valve replacement
Open Pivot AP360 heart valve on white background

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 to 31 mm 
Open Pivot standard mechanical heart valve on white background

Open Pivot Standard Mitral Heart Valve

The Open Pivot Standard mitral valve provides these additional features:

  • Intra-annular valve with generous, compliant cuff for exceptional implantability
  • Valve sizes ranging from 25 to 33 mm

Open Pivot Heart Valve Accessories

A variety of accessories are available to quickly and easily select the optimal valve type, appropriate valve size, and ideal placement for valve positioning.

  • Medtronic Open Pivot Sizer Kit includes AP Series and Standard heart valve sizers, a bendable holder handle, and a sterilization tray
  • Mitral Hex End Rotators and Holder provide additional length and flexibility when needed for rotation of mitral valves

Additional Resources

Contact Information

LifeLine CardioVascular
Technical Support


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Emery RW, Van Nooten GJ, Tesar PJ. The initial experience with the ATS Medical mechanical cardiac valve prosthesis. Ann Thorac Surg. 2003;75(2):444-452.


Emery RW, Petersen RJ, Kersten TE, et al. The initial United States experience with the ATS mechanical cardiac valve prosthesis. Heart Surg Forum. 2001;4(4):346-352.


Kelly SG, Verdonck PR, Vierendeels JA, Riemslagh K, Dick E, Van Nooten GG. A three-dimensional analysis of flow in the pivot regions of an ATS bileaflet valve. Int J Artif Organs. November 1999;22(11):754-763.


Shiono M, Sezai Y, Sezai A, et al. Multi-institutional experience of the ATS Open Pivot bileaflet valve in Japan. Ann Thorac Cardiovasc Surg. 1996;2(1):51-58.


Krian A. Clinical results of a large series of ATS valve implants. In: Krian A, Matloff JM, Nicoloff DM, eds. Advancing the Technology of Bileaflet Mechanical Heart Valves. New York: Springer Verlag; 1998:53-71.


Premarket Approval (PMA). U.S. Food & Drug Administration. Available at: Accessed April 20, 2021.


Emery RW, Krogh CC, Jones DJ, Nicoloff DM, Blake DP, Arom KV. Five-year follow up of the ATS mechanical heart valve. J Heart Valve Dis. March 2004;13(2):231-238.


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Van Nooten GJ, Caes F, Francois K, et al. Fifteen years’ single-center experience with the ATS bileaflet valve. J Heart Valve Dis. 2009;18(4):445-452.


Sezai A, Shiono M, Orime Y, et al. Evaluation of valve sound and its effects on ATS prosthetic valves in patient's quality of life. Ann Thorac Surg. 2000;69:507-512.