Novartis AG
Vitrectomy probe with rotational helical cutter

Abstract:

Vitrectomy probes and methods related thereto are disclosed herein. The disclosure describes various example vitrectomy probes having a rotational helical cutter. An example helical cutter includes an outer cutter portion and an inner cutter portion received therewithin. The inner cutter portion is operable to rotationally reciprocate within the outer cutter portion about a longitudinal axis thereof. A helical shearing surface formed at a distal end of the inner cutter portion is operable to sever material entering the cutter via a port formed in the outer cutter portion.