Surgical tool and method for extracting tissue from wall of...

Details Surgical tool and method for extracting tissue from wall of... Surgical tool and method for extracting tissue from wall of...

2006-05-09

2006-05-09

Woo, Julian W. (Department: 3731)

Surgery

Instruments

Corneal cutter or guide for corneal cutter

C128S898000

Reexamination Certificate

active

07041114

ABSTRACT:
Methods and equipment for the treatment of the eye and more particularly an instrument to increase eye filtration and treat glaucoma. The instrument is surgical tool operated entirely by the surgeon's hands and is composed of a hand-piece and an eye-penetrating intraocular segment each having two opponent and reciprocally operating fork-like arms and blade-sharp leaves, respectively. The eye-penetrating segment is a rigid embodiment of a size to create a limbus-pointing tunnel in the cornea, penetrate the eye of a patient through a water tight incision and, in a five step dissect and extract procedure, remove from within the eye a trabecular tissue block leaving the incision to self-seal by intraocular pressure. In the same “modus operandi”, a sample tissue can be extracted from any other hollowed or parenchimatous organ.

REFERENCES:
patent: 5275607 (1994-01-01), Lo et al.
patent: 5370652 (1994-12-01), Kellan
patent: 5951579 (1999-09-01), Dykes
patent: 6010518 (2000-01-01), Prywes
patent: 6264668 (2001-07-01), Prywes
“Clear Cornea Trabeculectomy” Trans Ophthalmol Soc UK 1985; 104:142-5.
“Twenty-Two Cases of Clear Crnea Trabeculectomy” Australian Journal of Ophthalmology 1986: 14: 339-342.

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