Flush syringe having compressible plunger

US9333301B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9333301-B2
Application numberUS-201414512792-A
CountryUS
Kind codeB2
Filing dateOct 13, 2014
Priority dateOct 11, 2002
Publication dateMay 10, 2016
Grant dateMay 10, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An I.V. flush syringe assembly includes a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end with a passageway therethrough in fluid communication with the chamber. An elongate plunger having a proximal end, a distal end and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing fluid into and out of the chamber by movement of the stopper relative to the barrel. The plunger includes anti-reflux structure for minimizing stopper deflection when fluid has been delivered from the chamber and the stopper is being forced against the distal end of the chamber.

First claim

Opening claim text (preview).

What is claimed is: 1. An I.V. flush syringe assembly comprising: a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end including a distal wall with an elongate tip extending distally therefrom having a passageway therethrough in fluid communication with said chamber; and a plunger including an elongate body portion having a proximal end, a distal end, and a stopper being slidably positioned in fluid-tight engagement with sa…

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What does patent US9333301B2 cover?
An I.V. flush syringe assembly includes a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end with a passageway therethrough in fluid communication with the chamber. An elongate plunger having a proximal end, a distal end and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing flui…
Who is the assignee on this patent?
Becton Dickinson Co
What technology area does this patent fall under?
Primary CPC classification A61M5/31511. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue May 10 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).