Safety syringe

Details Safety syringe Safety syringe

1998-07-08

1999-05-04

Coggins, Wynn Wood

Surgery

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

Treating material introduced into or removed from body...

604195, 604240, A61M 500, A61M 532

Patent

active

058998837

ABSTRACT:
A safety syringe includes a tubular barrel having a bottom formed with an opening and a top formed with a neck portion, a plunger configured to be slidably fitted in the barrel and provided with a rubber piston 21 at an inner end thereof and a thumb plate 22 at an outer end thereof, a cylindrical connector having a bottom formed with a flange, a first annular projection above the flange, and a second annular projection above the first annular projection, and a needle including a tubular pin and a conical base at a lower end of the tubular pin, whereby the risk of contracting dieseases from accidental sticks with dirty needles can be totally avoided.

REFERENCES:
patent: 5069225 (1991-12-01), Okamura
patent: 5242401 (1993-09-01), Colsky
patent: 5533980 (1996-07-01), Sweeney et al.
patent: 5667494 (1997-09-01), Van Den Haak
patent: 5697907 (1997-12-01), Gaba

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