Mechanical valves and conduits

Medtronic Open Pivot™ aortic valved graft

<p>The Medtronic Open Pivot™ AVG is for use secondary to a diseased, damaged, or malfunctioning aortic valve with aortic aneurysmal or occlusive disease.</p>

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Features

Bileaflet valve

Unlike other bileaflet valves, which use cavity pivots, the Medtronic Open Pivot™ aortic valved graft has no recesses or cavities in the pivot area where thrombogenesis can occur.1,2 This allows for continuous passive washing and gentle treatment of blood cells, resulting in low levels of hemolysis and thromboembolic events.1,3

Excellent hemodynamics

In-vivo studies demonstrate excellent hemodynamics.3–5

Easy implantability

With no tapers or pleats, the Medtronic Open Pivot™ AVG allows for easy anastomosis anywhere on the graft. The rotatable valve allows for optimal leaflet positioning.

Proven graft material

The Hemashield™* woven double velour graft is made with a low-porosity graft material to improve hemostasis.6,7 Excellent resorption rates facilitate healing.6 The graft material also offers exceptional handling characteristics.

Simple valve selection

Convenient accessories include nine white-handled, single-ended standard heart valve sizers. Each sizer handle has a clear cylindrical ring that approximates the patient’s tissue annulus size for appropriate valve selection.

Ordering information

Item number Description Valve size (mm)
502AG21 Intra-annular, aortic valved graft 21
502AG23 Intra-annular, aortic valved graft 23
502AG25 Intra-annular, aortic valved graft 25
502AG27 Intra-annular, aortic valved graft 27
502AG29 Intra-annular, aortic valved graft 29
502AG31† Intra-annular, aortic valved graft 31
502AG33† Intra-annular, aortic valved graft 33


† Model not currently available in the United States.

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TM* Third-party brands are trademarks of their respective owners.

† Model not currently available in the United States.

  1. 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. 1999;22(11):754–763.
  2. 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.
  3. 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. 2004;13(2):231–238.
  4. Westaby S, Van Nooten G, Sharif H, Pillai R, Caes F. Valve replacement with the ATS open pivot bileaflet prosthesis. Eur J Cardiothorac Surg. 1996;10(8):660–665.
  5. U.S. Food & Drug Administration. Premarket Approval (PMA). Accessed April 20, 2021.
  6. Westaby S, Parry A, Giannopoulos N, Pillai R. Replacement of the thoracic aorta with collagen-impregnated woven Dacron grafts. Early results. J Thorac Cardiovasc Surg. 1993;106(3):427–433.
  7. Hirt SW, Aoki M, Demertzis S, Siclari F, Haverich A, Borst HG. Comparative in vivo study on the healing qualities of four different presealed vascular prostheses. J Vasc Surg. 1993;17(3):538–545.