CAPSULORRHEXIS DEVICE

摘要

A surgical instrument that creates a circular cut (42) in the lens capsule (50) of the eye. The entire diameter is less than 1 mm when inserted into the eye. A cutting edge (14) is affixed to the distal tip of a super-elastic rod (11) with its distal end formed into a circular loop. The circular loop is first retracted inside of an outer tube member (12). The tube (12) is inserted into the eye. The loop is expelled from the tube (12) which allows the loop to reform inside of the eye. As the loop is retracted back into the tube (12), the cutting edge (14) follows the circular path of the loop which cuts the circular opening (a capsulorrhexis-42) into the lens capsule (50).