Retractable needle and syringe combination

Details Retractable needle and syringe combination Retractable needle and syringe combination

1996-10-29

1997-10-28

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604110, A61M 532

Patent

active

056812922

ABSTRACT:
A combination syringe and needle are disclosed wherein the needle is mounted to a retractable element which retracts into the body of the syringe plunger. The needle is mounted to the retractor which is spring biased to retract the needle. The retraction is actuated by releasing the forward end of the retractor from engagement with a collet positioned on the forward end of the syringe inner barrel. The collet is configured so as to clamp the forward end of the retractor and only releases the forward end when the collet is pushed forwardly, expanded, and disengages the forward end of the needle retractor.

REFERENCES:
patent: 5092853 (1992-03-01), Couvertier, II
patent: 5180369 (1993-01-01), Dysarz
patent: 5211628 (1993-05-01), Marshall
patent: 5324265 (1994-06-01), Murray et al.
patent: 5330430 (1994-07-01), Sullivan
patent: 5385551 (1995-01-01), Shaw
patent: 5389076 (1995-02-01), Shaw
patent: 5395337 (1995-03-01), Clemens et al.
patent: 5407431 (1995-04-01), Botich et al.
patent: 5407436 (1995-04-01), Toft et al.

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