Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1993-11-04
1994-11-01
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
604 33, 604 67, A61M 100, A61M 3100
Patent
active
053603982
ABSTRACT:
An aspiration and irrigation system, in particular for performing surgical operations on an eye of a living being to maintain the intraocular pressure, includes a pressure unit for supplying gaseous fluid to the eye via a first fluid passageway and communicating with an infusion unit comprised of successively arranged first and second infusion bottles, both containing a liquid fluid. An irrigation unit is connected with the second infusion bottle for conducting liquid fluid from said second infusion bottle to the eye via a second fluid passageway; with the liquid fluid in the second infusion bottle being pressurized by gaseous fluid supplied from the pressure unit. A multiport valve selectively controls the flow between the first and second fluid passageways to the eye. Tissue and/or gaseous and liquid fluids are removed from the eye by an aspiration unit.
REFERENCES:
patent: 3589363 (1971-06-01), Banko
patent: 3693613 (1972-09-01), Kelman
patent: 4117843 (1978-10-01), Banko
patent: 4184510 (1980-01-01), Murry et al.
patent: 4551131 (1985-11-01), Miles et al.
patent: 4832685 (1989-05-01), Haines
patent: 4900301 (1990-02-01), Morris et al.
patent: 5242404 (1993-09-01), Conley et al.
Demmerle Rudolf
Grieshaber Hans R.
Vogel Urs
Feiereisen Henry M.
Grieshaber & Co. AG Schaffhausen
Wilkens III Frank
Yasko John D.
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