Patent ID: 7357779

Claim:
An aspiration flow modulation device arranged to be mounted in close proximity to a hand piece wherein the device comprises an irrigation line component and an aspiration line component, and wherein the irrigation line component is arranged to be mounted in close proximity to the hand piece and the aspiration line component is also arranged to be mounted in close proximity to the hand piece, and a fluid communication lumen is located between the irrigation line component and the aspiration line component so as to provide fluid communication between the components, the device being formed in a plurality of parts, a first part having the irrigation line component and a second part having the aspiration line component, the irrigation line component having a body with a bore extending therethrough and at least one small hole extending between the bore and the exterior, the at least one small hole being arranged to communicate, in use, with the fluid communication lumen, the aspiration line component including an annular collar arranged to receive the body of the irrigation line component, the fluid communication lumen extending from the annular collar to a tubular member of the aspiration line component, the irrigation line component being provided with at least two of the small holes spaced apart from one another, and means being provided for moving the irrigation line component to different positions in the annular collar to achieve different flow rates through the fluid communication lumen.