Surgical apparatus and methods asociated therewith
OwnerArmand Maaskamp, Alex Urichinventors
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Abstract
A surgical apparatus 10, used in a phaco procedure, includes a filter assembly 44/44a for near, or complete, elimination of air bubbles in an aspiration line of an aspiration system 38. The apparatus 10 includes a suppressor 110, which, during an aspiration mode of operation, maintains a fluid flow rate at 50 cc/min, and, upon an occlusion breaking free, dynamically decreases the fluid flow rate from a high surge rate to the rate at 50 cc/min. The apparatus 10 includes facility for operating in a reflux mode to direct unrestricted fluid flow through the aspiration line of the aspiration system 38.
Claims23
A dynamic surge suppressor for use in a phacoemulsification surgical procedure for the removal of lens tissue from an eye of a patient, which comprises:
- a suppressor housing having an inner passage;
- a mesh filter located within a portion of the inner passage of the suppressor housing;
- a tube, having an unobstructed inner passage with a prescribed diameter, located in a portion of the inner passage of the suppressor housing not occupied by the mesh filter;
- the tube unattached to any portion of the suppressor housing, and movable freely independently, and axially, within the inner passage of the suppressor housing;
- and
- a separate inner passage, independent of the unobstructed inner passage of the tube, formed by a space between an outer surface of the tube and an adjacent portion of an inner wall of the inner passage of the suppressor housing.
A dynamic surge suppressor for use in a phacoemulsification surgical procedure for the removal of lens tissue from an eye of a patient, which comprises:
- a suppressor housing having an inner passage;
- a tube, having an unobstructed inner passage with a prescribed diameter, located in a portion of the inner passage of the suppressor housing;
- the tube unattached to any portion of the suppressor housing, and movable freely, independently, and axially, within the inner passage of the suppressor housing;
- and
- a separate inner passage, independent of the unobstructed inner passage of the tube, formed by a space between an outer surface of the tube and an adjacent portion of an inner wall of the inner passage of the suppressor housing.
Dependencies are inferred from the claim text.