Inventor
JOHNSON KEITH M
9 patents
Patents
9 patentsUS8029564B2Oct 4, 2011
Prosthetic heart valve system
MEDTRONIC INC139 citations98
US7189258B2Mar 13, 2007
Heart valve system
MEDTRONIC INC236 citations98
US7033390B2Apr 25, 2006
Prosthetic heart valve system
MEDTRONIC INC132 citations98
US5766240AJun 16, 1998
Rotatable suturing ring for prosthetic heart valve
MEDTRONIC INC233 citations98
US5449384ASep 12, 1995
Dynamic annulus heart valve employing preserved porcine valve leaflets
MEDTRONIC INC432 citations98
US4339831AJul 20, 1982
Dynamic annulus heart valve and reconstruction ring
MEDTRONIC INC1,075 citations98
US7503929B2Mar 17, 2009
Prosthetic heart valve system
MEDTRONIC INC93 citations97
US7468073B2Dec 23, 2008
Heart valve system
MEDTRONIC INC58 citations97
US4808180AFeb 28, 1989
Prosthetic heart valve
MEDTRONIC INC12 citations73