Surgical aspirator cannula

Details Surgical aspirator cannula Surgical aspirator cannula

1987-03-20

1988-11-15

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

285 38, 604119, A61M 5325

Patent

active

047846496

ABSTRACT:
A surgical aspirator cannula including an elongated body having a distal end, a distal end port, a proximal end, a proximal end port and an aspirator conduit passing longitudinally therethrough. A cannula is removably secured to the distal end and when secured its cannula tip opening communicates through the cannula passageway with the distal end port. The proximal end of the body member is connected to a vacuum pump. A ball valve assembly is mounted in the body member in the aspiration conduit, and is operated by a hand-operated lever, knob or button supported on the body member. When the lever is then operated the valve assembly is selectively opened or closed to selectively communicate the source of vacuum with the distal end port and thus the cannula. The cannula has its proximal end fitted into a ferrule which fits into an adaptor that is screwed into the distal end portion of the body member. Then when the cannula nut is screwed onto the adaptor by twisting a cannula key fitted onto it, the ferrules will grip the cannula thereby securing it in place.

REFERENCES:
patent: 1520508 (1924-12-01), Platt et al.
patent: 3071402 (1959-09-01), Lasto et al.
patent: 3461870 (1969-08-01), Linge
patent: 3517669 (1970-06-01), Buono et al.
patent: 3527478 (1970-09-01), Enssle
patent: 4182385 (1980-01-01), Williamson
patent: 4369991 (1983-01-01), Linder
patent: 4536180 (1985-08-01), Johnson
patent: 4568332 (1986-02-01), Shippert

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