Syringe assembly and associated syringe biasing device

Details Syringe assembly and associated syringe biasing device Syringe assembly and associated syringe biasing device

1998-08-17

1999-08-31

Manahan, Todd E.

Surgery

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

Treating material introduced into or removed from body...

A61M 520

Patent

active

059446935

ABSTRACT:
A device for applying a biasing force to a syringe. The syringe is of the type having a barrel, a cannula at one end of the barrel and a piston that extends into the barrel. The biasing device includes a collar element that defines an aperture. The collar element passes over the cannula and abuts against the syringe barrel, wherein the cannula passes through the aperture in the collar element. A cap element is provided that is adapted to engage the piston of the syringe. A plurality of biasing elements extend between the collar element and the cap element. The biasing elements supply a biasing force between the cap element and the collar element that bias the cap element and the collar element toward one another. The biasing force applied between the cap element and the collar element compress the syringe and drive the piston further into the syringe.

REFERENCES:
patent: 126700 (1872-05-01), Heins
patent: 2309502 (1943-01-01), Douglas
patent: 4950265 (1990-08-01), Taylor
patent: 5239773 (1993-08-01), Doolittle, Jr.
patent: 5318539 (1994-06-01), O'Neil
patent: 5429607 (1995-07-01), McPhee
patent: 5531696 (1996-07-01), Menes
patent: 5697916 (1997-12-01), Schraga
patent: 5722956 (1998-03-01), Sims et al.

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