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US 2012/0234720 A1Published application
Syringes with a reduced susceptibility to freeze-thaw void formation and methods of manufacturing such syringes
AssigneeNordson Corporation
InventorsHenry DiGregorio, David Foote, James Getty
Life of this patent
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Abstract
Syringes for holding fluids susceptible to void formation when the syringe and fluid are frozen and thawed before use. The interior surface of the syringe barrel is modified by exposure to a plasma such that the incidence of void formation in the fluid is prevented or, at the least, significantly reduced in comparison with conventional syringes.
Claims7
A syringe for use with a fluid susceptible to freeze-thaw void formation, the syringe comprising:
- a tubular barrel having a cylindrical bore configured to contain the fluid, said cylindrical bore having an interior surface configured to be contacted by the fluid, and said interior surface treated with a plasma.
Dependencies are inferred from the claim text.