500DM23

Medtronic Open Pivot™ standard mitral heart valve — valve size: 23 mm; valve type: intra-annular; tissue annulus diameter: 23.5 mm; orifice inner diameter: 18.8 mm; geometric orifice area: 2.56 mL

The Medtronic Open Pivot™ heart valve is a low profile bileaflet valve indicated for the replacement of native or prosthetic aortic or mitral valves.

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Description

With the Medtronic Open Pivot™ valve, there are no orifice recesses or cavities — unlike other bileaflet valves — where potential thrombus may form.^1,2 Cavity pivot valves have an area where stasis could occur.

With no cavities for blood to slow or pool, the valve design minimizes flow disruption and turbulence in the pivot area during both forward and retrograde flow.^1,3–5

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):754–63.
Emery RW, Petersen RJ, Kersten TE, et al. The initial United States experience with ATS mechanical cardiac valve prosthesis. Heart Surg Forum. 2001;4(4):346–353.
Emery RW, Van Nooten GJ, Tesar PJ. The initial experience with the ATS mechanical cardiac valve prosthesis. Ann Thorac Surg. 2003;75(2):444–452.
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.
Dumont K, Vierendeels J, Kaminsky R, van Nooten G, Verdonck P, Bluestein D. Comparison of the hemodynamic and thrombogenic performance of two bileaflet mechanical heart valves using a CFD/FSI model. J Biomech Eng. 2007;129(4):558–565.

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500DM23 Medtronic Open Pivot™ standard mitral heart valve — valve size: 23 mm; valve type: intra-annular; tissue annulus diameter: 23.5 mm; orifice inner diameter: 18.8 mm; geometric orifice area: 2.56 mL

500DM23 Medtronic Open Pivot™ standard mitral heart valve — valve size: 23 mm; valve type: intra-annular; tissue annulus diameter: 23.5 mm; orifice inner diameter: 18.8 mm; geometric orifice area: 2.56 mL

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500DM23

Medtronic Open Pivot™ standard mitral heart valve — valve size: 23 mm; valve type: intra-annular; tissue annulus diameter: 23.5 mm; orifice inner diameter: 18.8 mm; geometric orifice area: 2.56 mL

500DM23

Medtronic Open Pivot™ standard mitral heart valve — valve size: 23 mm; valve type: intra-annular; tissue annulus diameter: 23.5 mm; orifice inner diameter: 18.8 mm; geometric orifice area: 2.56 mL