Surgical cutting instrument having a offset probe for ophthalmic

Details Surgical cutting instrument having a offset probe for ophthalmic Surgical cutting instrument having a offset probe for ophthalmic

1986-11-03

1988-06-28

Rosenbaum, C. Fred

Surgery

Truss

Pad

604 22, 30241, A61F 1732

Patent

active

047532343

ABSTRACT:
A surgical cutting instrument, particularly useful for ophthalmic surgery, includes a cylindrical body, a piston disposed for reciprocating movement in a chamber in the body and a probe having an elongate tubular outer probe member with a closed distal end and a port adjacent thereto and an elongate inner probe member slidably disposed in the outer probe member with a distal end movable across the port to provide a cutting action and a portion mounted to the piston such that the probe is positioned parallel to the longitudinal axis of the cylindrical body and axially offset therefrom such that the inner and outer probe members are in positive alignment and not subject to relative rotation and inadvertent misalignment. An evacuation tube receives cut material from the probe passing through the surgical cutting instrument and a supply tube supplies pressure to the chamber to reciprocate the piston.

REFERENCES:
patent: 3412466 (1968-11-01), Kurosaki
patent: 3561429 (1971-02-01), Jewett et al.
patent: 4368734 (1983-01-01), Banko
patent: 4517977 (1985-05-01), Frost
patent: 4577629 (1986-03-01), Martinez

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