Prefill syringe

Details Prefill syringe Prefill syringe

1996-06-11

1998-04-21

Buiz, Michael

Surgery

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

Treating material introduced into or removed from body...

604199, 604263, A61M 532

Patent

active

057412367

ABSTRACT:
The present invention relates to a prefill syringe in which the space provided at the joining area between a cap or protector and a needle holder can be covered by an inexpensive material and a simple method, without interrupting the flow of the production process. In this prefill syringe, a cap 15 or a protector is attached to a needle holder 11 provided to one end of cartridge 10, and a cylindrical member 20 formed of an elastic material is externally engaged to span the needle holder and cap or protector so as to cover the joining area A between the needle holder and the cap, or the joining area between the needle holder and the protector. Further, one or more ring-shaped projections which contact the outer peripheral surface of the needle holder and the outer peripheral surface of the cap are formed to the inner periphery of the cylindrical member.

REFERENCES:
patent: 4365626 (1982-12-01), House
patent: 4636201 (1987-01-01), Ambrose et al.
patent: 4664653 (1987-05-01), Sagstetter et al.
patent: 4897083 (1990-01-01), Martell
patent: 4986818 (1991-01-01), Imbert et al.
patent: 5147325 (1992-09-01), Mitchell et al.
patent: 5263933 (1993-11-01), Novacek et al.

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