Protective syringe sleeve
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United States of America Patent
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Aug 20, 2013
Grant Date -
May 5, 2011
app pub date -
Nov 5, 2009
filing date -
Nov 5, 2009
priority date (Note) -
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Abstract
A protective sleeve placed within the cylinder of a syringe, the sleeve protects a piston and a computer controlled device or human operator pushing the piston from material leaking past a piston assembly. The sleeve has lips or ridges at either end, one that is attached to the piston assembly at the output end of the syringe and a second lip that is attached with a retention plate at the far end of the syringe. The sleeve may have a bellows or accordion configuration that slides along the inner surface of the syringe cylinder without appreciably loading the drive mechanism.
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