Patent ID: 9498377
Filing Date: 2016-11-22
CPC Classification: A61F,A61M

Claim Text:
1. An ophthalmic surgical device comprising: a housing having a distal end and a proximal end; a cannula attached to the housing distal end and having a distal tip with at least one port in communication with a lumen extending through the cannula and in communication with an aspiration path in the housing and wherein a cross-sectional area of the port is less than a cross-sectional area of the lumen; a vibration source held within the housing for vibrating the distal tip of the cannula for assisting in vitreous and other tissue removal from a patient's eye; an aspiration source connected to the aspiration path for applying a negative pressure to the lumen and the at least one port for removing fluids and the vitreous and other tissue from the eye; and wherein the vibration source and the aspiration source together create a periodic bi-directional flow of the vitreous and other tissue through the port during aspiration without creating cavitation externally of the distal tip.