초록 ▼

A irrigation/aspiration apparatus to be used in a cataractal operation comprises an irrigation fluid supply means for supplying an irrigation fluid contained in an irrigation bottle to the patient's eye, and an irrigation fluid aspirating means for aspirating, together with loosened tissues and the

A irrigation/aspiration apparatus to be used in a cataractal operation comprises an irrigation fluid supply means for supplying an irrigation fluid contained in an irrigation bottle to the patient's eye, and an irrigation fluid aspirating means for aspirating, together with loosened tissues and the like, the irrigation fluid supplied into the patient's eye. The irrigation/aspiration apparatus is characterized by an irrigation flow rate varying means for varying the irrigation rate of the irrigation fluid at which the irrigation fluid supply means supplies the irrigation fluid, and an irrigation flow rate control means for controlling the irrigation flow rate varying means according to the operating condition of the irrigation fluid aspirating means to regulate the irrigation flow rate so that the variation of the pressure in the anterior chamber of the patient's eye is suppressed during the cataractal operation.

대표청구항 ▼

[ What is claimed is:] [1.] An irrigation/aspiration apparatus for ophthalmic surgery comprising:an irrigation means, including an irrigation hand-piece, for supplying an irrigation fluid contained in an irrigation bottle to a patient's eye;an irrigation flow rate varying means for varying the irrig

[ What is claimed is:] [1.] An irrigation/aspiration apparatus for ophthalmic surgery comprising:an irrigation means, including an irrigation hand-piece, for supplying an irrigation fluid contained in an irrigation bottle to a patient's eye;an irrigation flow rate varying means for varying the irrigation flow rate of the irrigation fluid to the irrigation hand-piece in response to a flow rate control signal;an aspiration means, including an aspiration pump, for aspirating the irrigation fluid with removed tissues from the patient's eye in response to an aspiration control signal;a control means for respectively supplying the flow rate control signal and the aspiration control signal to the irrigation flow rate varying means and the aspiration means; andinput means for supplying an operation control signal to the control means;wherein the control means controls the operation of the irrigation flow rate control means and the aspiration means, in response to the operation control signal, to maintain the biocavity pressure and capacity of the anterior chamber of the patients's eye at substantially constant levels when the irrigation means is operated alone or simultaneously with the aspiration means.