U.S. Heart Valve Manufacturers (alphabetical order; pretty sure this list is complete, if not please advise):
ATS, Mechanical Valves, Headquarters: Minneapolis, MN
www.atsmedical.com
Carbomedics (Sorin Group), Mechanical Valves, Headquarters: Austin, TX
www.carbomedics.com
Edwards, Biological Valves, Headquarters: Irvine, CA
www.edwards.com
Medtronics, Mechanical & Biological Valves, Headquarters: Minneapolis, MN
www.medtronic.com
On-X Life Technologies, Inc., Mechanical Valves, Headquarters: Austin, TX (formerly Medical Carbon Research Institute)
www.onxlti.com www.onxvalves.com www.heartvalvechoice.com
St. Jude, Mechanical and Biological Valves, also Allografts, Headquarters: Minneapolis, MN
www.sjm.com
Note: Biological is simply another name for “Tissue”, and Biological Valves are either Bovine (cow) or Porcine (pig). There are also valves called “Homografts” or “Allografts” that are from cadavers.
Note: Mechanical heart valves today are all the “Bileaflet” design except for the Medtronic mechanical valve, which is the “Tilting Disc” design. In the past there was also the “Ball and Cage” design, but this design is no longer sold in the U.S.
Note: Some of the above also sell products for valve repair (versus valve replacement)
You can find information on the various valves at the above websites. There is also a lot of information on the valvereplacement.com website, particularly in the "Valve Selection" section. The search feature can be used to find older posts.
Good luck!