OPHTHALMIC SURGICAL APPARATUS FOR PHACOEMULSIFICATION

摘要

An ophthalmic surgical apparatus for phacoemulsification includes an aspiration line to transport an aspiration fluid and particles of an eye generated by phacoemulsification. A suction vacuum pump draws in the aspiration fluid and the particles of the eye via the aspiration line and a flow limiter adjustably limits the flow to a flow lying in a range of 5 milliliter to 100 milliliter per minute. The aspiration line defines an inner cross section and has an outer wall. The flow limiter is arranged upstream of the suction vacuum pump and has at least two press-on elements. The elements are each configured to contact engage the outer wall so as to cause the inner cross section to be reduced. The press-on elements are disposed mutually spaced so as to define a predetermined distance therebetween and are arranged to be rotatably movable in a rotational direction about a common rotational axis.

主权项

1. An ophthalmic surgical apparatus for phacoemulsification comprising:
an aspiration line configured to transport an aspiration fluid and particles of an eye generated by phacoemulsification in a predetermined flow direction; a suction vacuum pump configured to draw in the aspiration fluid and the particles of the eye via said aspiration line; a flow limiter configured to adjustably limit said flow to a flow lying in a range of 5 milliliter to 100 milliliter per minute; said aspiration line defining an inner cross section thereof and having an outer wall; said flow limiter being arranged ahead of said suction vacuum pump with respect to said flow direction; said flow limiter having at least two press-on elements; said elements each being configured to contact engage said outer wall so as to cause said inner cross section to be reduced; and, said press-on elements being disposed in spaced relationship to each other so as to define a predetermined distance therebetween and being arranged to be rotatably movable in a rotational direction about a common rotational axis.