Anti-cornea-collapsing device for ophthalmic surgery using ultra

Details Anti-cornea-collapsing device for ophthalmic surgery using ultra Anti-cornea-collapsing device for ophthalmic surgery using ultra

1998-02-23

2000-03-28

Buiz, Michael

Surgery

Instruments

Means for removing, inserting or aiding in the removal or...

606166, 604 19, 604 22, 604 27, A61F 900

Patent

active

060425865

ABSTRACT:
Device for preventing cornea from collapsing including a domed frame with an irrigation duct perforated therein up to the dome of the frame, and elastic latex membrane attached to, and tightly bound at the brim of, the dome; and a chamber formed between the frame and the elastic latex membrane. The frame is incorporated in the irrigation line running from an irrigation bottle to the irrigation inlet of an ultrasound handpiece. Through the irrigation duct perforated in the frame, the chamber is linked to the irrigation line. The chamber inflates or constricts, as irrigation flows in or out, by the inflating and repulsing force of the elastic latex membrane generated by the up-to bottom irrigation. By emitting the irrigation solution into an eye through the irrigation line, the cornea is prevented from collapsing. The device with construction of an elastic latex membrane attached to the domed frame, and incorporated in the irrigation line, is especially useful for ultra-high vacuum phacoemulsification.

REFERENCES:
patent: 4516398 (1985-05-01), Wuchinich
patent: 4921477 (1990-05-01), Davis
patent: 5167620 (1992-12-01), Ureche et al.
patent: 5476448 (1995-12-01), Urich

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