Needle protection devices with mutually facing abutments

Details Needle protection devices with mutually facing abutments Needle protection devices with mutually facing abutments

2006-02-28

2006-02-28

Thanh, LoAn H. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

07004930

ABSTRACT:
A syringe holder has a barrel (1) with a needle shroud (4) telescopic into its leading end and urged forwardly by a spring (5). The shroud is rotatable into several set positions, being located by snap action of a nib (18) into longitudinal grooves within a forward extension (3) of the barrel (1). An abutment (21,20) on the shroud is thereby aligned with a selected one of several abutments (12,9,14) within the barrel, these all being at different axial positions. One setting prevents needle exposure; the others permit different amounts of needle exposure as the barrel (1) is urged forwardly during an injection.

REFERENCES:
patent: 4911693 (1990-03-01), Paris
patent: 5242401 (1993-09-01), Colsky
patent: 5389085 (1995-02-01), Alession et al.
patent: 5609577 (1997-03-01), Smedley et al.
patent: 5688241 (1997-11-01), Asbaghi
patent: 0 749 758 (1996-12-01), None
patent: 1 133 555 (1997-11-01), None
patent: WO 99 25402 (1999-05-01), None
patent: WO 00 25845 (2000-05-01), None

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