Patent ID: 6183488
Filing Date: 2001-02-06
Classification: A61F

Abstract:
A medical device for cutting a cornea, comprising:a ring that has a first sidewall and a second sidewall, said first sidewall having a first groove, said second sidewall having a second groove, said first groove is located a first distance from a base surface of said ring and said second groove is located a second distance from said base surface of said ring, wherein the first distance is different from the second distance;a head which has a first tongue that can slide along said first grove and a second tongue that can slide along said second groove, said first tongue being located a first distance from a bottom surface of said head and said second tongue being located a second distance from said bottom surface so that said head can be assembled onto said ring in only one orientation;said first tongue being located a first distance from a bottom surface of said head and said second tongue being located a second distance from said bottom surface so that said head can only be assembled onto said ring in one orientation;a blade that is coupled to said head; anda drive assembly that can move said head relative to said ring and said blade relative to said head.