Syringe with adjustable two piece plunger rod

Details Syringe with adjustable two piece plunger rod Syringe with adjustable two piece plunger rod

2011-07-12

2011-07-12

Sirmons, Kevin C (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

07976510

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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