Syringe

Details Syringe Syringe

2005-05-14

2009-12-29

Desanto, Matthew F (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S195000, C604S240000

Reexamination Certificate

active

07637888

ABSTRACT:
A syringe includes a piston (16) that is slidably guided in a casing (10), and a needle (20) adapted to be withdrawn into the casing. The piston (16) and the needle (20) are connected by a coupling (22; 22′) which is adapted to assume three states: a releasable coupling state in which the needle (20) can be moved towards the front end of the casing (10) together with the piston (16), an uncoupled state in which the piston (16) can be moved back in the casing (20) separately from the needle (20), and a permanent coupling state in which the needle (20) can be withdrawn into the casing (10) by the piston (16).

REFERENCES:
patent: 4507117 (1985-03-01), Vining et al.
patent: 5205824 (1993-04-01), Mazur
patent: 5378240 (1995-01-01), Curie et al.
patent: 5997511 (1999-12-01), Curie et al.
patent: 7530966 (2009-05-01), Woehr et al.
patent: 9744076 (1997-11-01), None
patent: WO 9744076 (1997-11-01), None

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