Surgical instrument employing cutter means

Details Surgical instrument employing cutter means Surgical instrument employing cutter means

1973-11-09

1976-02-10

Pace, Channing L.

Surgery

Truss

Pad

A61B 1732

Patent

active

039372227

ABSTRACT:
A surgical instrument including a cutter for removing objects from the body of a human or animal in vivo, such as the lens in the eye, in which a rotatable cutter is used having a shield through which irrigation fluid is applied to the eye and also through which material severed from the object can be removed. In a preferred embodiment of the invention, a spiral groove is formed as part of the cutter to produce an evacuation of removed material alone or in a suspension. The cutter also has a burr which is coated with an efficient cutting material such as diamond dust and can also include a coating of a non-sticking lubricant.

REFERENCES:
patent: 3384085 (1968-05-01), Hall
patent: 3614953 (1971-10-01), Moss
patent: 3618611 (1971-11-01), Urban
patent: 3732858 (1973-05-01), Banko
patent: 3736938 (1973-06-01), Evvard et al.
patent: 3809093 (1974-05-01), Abraham
Douvas Nicholas G., "The Cataract Roto-Extractor", Amer. Acad. of Ophthal. and Otolaryng., 77: OP-792-OP-800, 1973.

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