Sheath structure for a surgical knife

Details Sheath structure for a surgical knife Sheath structure for a surgical knife

1992-07-08

1993-08-10

Aschenbrenner, Peter A.

Surgery

Instruments

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

606167, 30151, A61B 1732

Patent

active

052344363

ABSTRACT:
For protection of the otherwise sharp protruding end of a given instrument for use in ophthalmic or other surgery, as when the instrument is to be used only after it has traversed the major part of a scleral tunnel, a shiftable guard or shield is manipulable after it has served its function of avoiding damage to hemorrhageable tissues adjacent tunnel-wall tissue, thereby exposing the sharp end only after safely passing the hemorrhageable region. Various embodiments are described.

REFERENCES:
patent: 1242415 (1917-10-01), Benson
patent: 2288555 (1942-06-01), St. Jacques
patent: 2870947 (1959-01-01), Hendry
patent: 4491132 (1985-01-01), Aikins
patent: 4569133 (1986-02-01), Schmidt
patent: 4576164 (1986-03-01), Richeson

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