A surgical knife blade for forming an incision in bodily tissue including a body having a cutting edge terminating at a distal tip, the cutting edge including opposing cutting edge segments extending distally to meet at the tip, the cutting edge being configured by blending a first and second radii....http://www.google.com/patents/US8080027?utm_source=gb-gplus-sharePatent US8080027 - Surgical knife blade with hollow bevel
