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Publication numberUSD638538 S1
Publication typeGrant
Application numberUS 29/365,538
Publication dateMay 24, 2011
Filing dateJul 9, 2010
Priority dateJul 10, 2009
Also published asCA2767652A1, CA2767663A1, CN102481417A, CN102481417B, CN102481418A, CN102481418B, CN103751886A, EP2451509A1, EP2451510A1, US8394068, US8491537, US20110009829, US20110009830, US20130281941, USD638122, USD638123, WO2011006086A1, WO2011006103A1
Publication number29365538, 365538, US D638538 S1, US D638538S1, US-S1-D638538, USD638538 S1, USD638538S1
InventorsAnthony J. Kosinski, Girum Yemane, Nichola Charles
Original AssigneeBecton, Dickinson And Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Syringe plunger rod
US D638538 S1
Flush syringe assemblies capable of creating pulsatile movement of the plunger rod as it moves in the distal direction within a syringe barrel, while preventing overpressurization of the cathether are provided. An exemplary flush syringe assembly includes a syringe barrel with a first pulsing element and a chamber with flush solution, a plunger rod with a stopper and a second pulsing element that interacts with the first pulsing element to provide an engagement force that causes pulsatile movement of the plunger rod and a thumb press slidably attached to the plunger rod with a pulse control element. The pulse control element is compressible to create a compression force that is greater than the engagement force of the first pulsing element and the second pulsing element.
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  1. The ornamental designs for a syringe plunger rod, as shown and described.

FIG. 1 is a perspective view of a syringe plunger rod;

FIG. 2 is a side view of a syringe plunger rod;

FIG. 3 is a side view of a syringe plunger rod;

FIG. 4 is a top view of a syringe plunger rod; and,

FIG. 5 is a bottom view of a syringe plunger rod.

U.S. ClassificationD24/130
Cooperative ClassificationA61M2206/10, A61M5/31595, A61M5/31501, A61M2025/0019, A61M5/31511
European ClassificationA61M5/315C, A61M5/315F3B2