Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 12, 2011
Patent Application Number
12393526
Date Filed
February 26, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
Medical devices comprising a syringe barrel and a two-piece plunger rod are provided. According to one or more embodiments, the two-piece plunger rod includes a distal portion and proximal portion slidably mounted to the distal portion. The distal and proximal portions include a tab and plurality of grooves which engage to adjust the overall length of the plunger rod to a plurality of locked lengths. The locked lengths of the plunger rod permit varying amount of fluid to be expelled from the barrel.
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