A sizer for assessing the geometry of a heart valve annulus including a handle portion for holding the sizer and a sizing portion. The sizing portion is preferably in the shape of an arch having an apex and two legs, each of which has a base adjoining the handle portion. The legs of the arched sizing...http://www.google.de/patents/US6598307?utm_source=gb-gplus-sharePatent US6598307 - Device and method for assessing the geometry of a heart valve
