Safety needle with positive flush

Details Safety needle with positive flush Safety needle with positive flush

2006-08-29

2006-08-29

Sirmons, Kevin (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S177000, C604S272000

Reexamination Certificate

active

07097637

ABSTRACT:
A safety needle device and positive flush mechanism for use with a vascular access port. In one embodiment, the combination needle assembly includes a needle, a body and a base, the body being collapsible to expunge fluid therefrom as the needle is withdrawn from a vascular access port. In another embodiment, the combination needle assembly includes a needle, a housing and a reservoir, the housing squeezing the reservoir to expunge fluid therefrom as the needle is withdrawn from the port. In another embodiment, the needle assembly includes a compression plate and balloon extension, the compression plate forcing fluid out of the balloon extension as the needle is withdrawn from the port. In all embodiments, the needle assembly is configured to provide a positive flush to overcome negative pressures in the vascular access port, while also providing a locking mechanism to prevent accidental needle sticks.

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Product Description, “Port-A-Cath® Needles with Y-Site” Deltec, www.deltec.com/products—detail.cfm.
Brochure, Specialized Health Products®, Incorporated © Copyright 2001, Revisions date: Nov. 2001, “Liftlock™ Safety Infusion Set”.

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