Patent ID: 9615969
Date: 2017-04-11
CPC Classifications: A61B,A61F

Claim:
1. A vitrectomy probe, comprising: a hand-graspable body; an external tube extending from the hand-graspable body and sized to penetrate an eye of a patient during an ocular surgery, the external tube having a closed end, the external tube having a port sized to receive vitreous of the eye; an internal tube having a first cutting edge facing in a proximal direction and a second cutting edge facing in a distal direction, the internal tube being disposed within the external tube so that the first cutting edge oscillates across the port of the external tube to cut tissue in the port with the first cutting edge when the internal tube moves in the proximal direction and to cut tissue in the port with the second cutting edge when the internal tube moves in the distal direction; and a motor that drives the internal tube in a reciprocating motion relative to the external tube, wherein the internal tube comprises a distal portion and a proximal portion, the distal portion comprising the first cutting edge facing the proximal portion and comprising the second cutting edge facing in the distal direction, wherein the distal portion includes a first open end and a plurality of cross-blades extending across the first open end.