Search results
Results From The WOW.Com Content Network
St. Jude Medical was founded in 1976 to further develop bi-leaflet artificial heart valves, which were originally created in 1972 at the University of Minnesota. [4] [5] St. Jude Medical's bi-leaflet valve was developed in large part by Dr. Demetre Nicoloff of the University of Minnesota and St. Jude Medical employee Don Hanson.
In 1976, he founded St. Jude Medical where his team engineered the first bileaflet mechanical heart valve, which reduced the frequency of blood clots in patients. It still dominates the mechanical valve replacement market. [4] [5] In 1982, Villafana founded GV Medical, which developed a device to open blood vessels open. [6]
In the US, UK and the European Union, the most common type of artificial heart valve is the bioprosthetic valve. Mechanical valves are more commonly used in Asia and Latin America. [citation needed] Companies that manufacture heart valves include Edwards Lifesciences, [5] Medtronic, [6] Abbott (St. Jude Medical), [7] CryoLife, [8] and LifeNet ...
St. Jude Medical Announces European Approval of the Portico Transcatheter Aortic Heart Valve ST. PAUL, Minn.--(BUSINESS WIRE)-- St. Jude Medical, Inc. (NYS: STJ) , a global medical device company ...
St. Jude Medical Announces First Transapical Implant of Portico Transcatheter Aortic Heart Valve New surgical approach represents continued expansion of company's less invasive heart valve program ...
St Jude Medical's Portico Transcatheter aortic valve received European CE mark approval in December 2013. The valve is repositionable before release to ensure accurate placement helping to improve patient outcomes. [12] Edwards' Sapien aortic valve is made from bovine pericardial tissue and is implanted via a catheter-based delivery system. It ...
Tissue valves deteriorate more rapidly in young patients and during pregnancy, but they are preferable for women who wish to have children because pregnancy increases the risk of blood clots. Typically, a mechanical valve is considered for patients under 60 years old, while a tissue valve is considered for patients over the age of 65 years. [13]
The valve is excised 4–5 mm from the annulus, leaving intact the attached chordae unless they are calcified or otherwise diseased. The valve is replaced by a mechanical or bioprosthetic valve. The replacement valve is sewn into the annulus with interrupted or horizontal mattress sutures with the pledgets on the atrial side. [20]