Surgical instrument

Details Surgical instrument Surgical instrument

1989-02-24

1990-02-13

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

606162, 606166, A61B 1720

Patent

active

049003003

ABSTRACT:
This invention relates to the design and application of a goniectomy instrument for the purpose of diagnostically and therapeutically removing tissue from the anterior chamber angle of the eye and for retrieving this tissue for further examination. The surgical instrument of this invention comprises in combination: a hollow, tapered shaft having a cutting edge at one end as an integral part thereof; a retractable stylet contained within the hollow interior of the tapered shaft; and an irrigation port running along the outside of the tapered shaft. This instrument is useful for excising tissue to relieve an obstruction blocking the outflow of aqueous humor from the eye as well as for providing specimens of the excised tissue for histopathological examination.

REFERENCES:
patent: 3542031 (1970-11-01), Taylor
patent: 4011869 (1977-03-01), Seiler, Jr.
patent: 4043322 (1977-08-01), Robinson
patent: 4210146 (1980-07-01), Banko
patent: 4220155 (1980-09-01), Kimberling et al.
patent: 4577629 (1986-03-01), Martinez
patent: 4655743 (1987-04-01), Hyde
patent: 4689040 (1987-08-01), Thompson

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