Skin puncture device with needle stick protection

Details Skin puncture device with needle stick protection Skin puncture device with needle stick protection

2007-03-13

2007-03-13

Lucchesi, Nick (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C128S919000

Reexamination Certificate

active

11352830

ABSTRACT:
A skin puncture device for use as an intravenous catheter or blood collecting needle set is provided with a mechanism for protection against needle injury and access to fluid passageway during insertion. The assembly includes a flexible extension tube connected to the proximal end of the needle housing for use in difficult insertion sites. The extension tube provides access for fluid injection so that the passageway and needle can be filled with fluid prior to needle/catheter insertion, allowing diffusion of blood to provide evidence of successful venipuncture and allowing the infusion of small amounts of fluid into the vein to facilitate catheter advancement. The locking mechanism consists of two apertures in the needle housing and two pairs of needle guard locking tabs which selectively engage when the needle guard is pushed forward to its fully extended position upon completion of insertion or blood drawing, encapsulating the length of the needle.

REFERENCES:
patent: 5000740 (1991-03-01), Ducharme et al.
patent: 5120319 (1992-06-01), Van Heugten et al.
patent: 5201713 (1993-04-01), Rossetti
patent: 5672160 (1997-09-01), Osterlind et al.
patent: 5954698 (1999-09-01), Pike

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