Syringe with pecvd lubrication

Abstract

A syringe or other vessel having a substrate surface coated by PECVD is provided. The PECVD coating is made by generating plasma from a gaseous reactant comprising an organosilicon precursor and optionally O 2 . The lubricity, hydrophobicity and/or barrier properties of the coating are set by setting the ratio of the O 2 to the organosilicon precursor in the gaseous reactant, and/or by setting the electric power used for generating the plasma. In particular, a lubricity coating made by said method is provided. Vessels coated by said method and the use of such vessels protecting a compound or composition contained or received in said coated vessel against mechanical and/or chemical effects of the surface of the uncoated vessel material are also provided.

1 . A syringe comprising a barrel and a plunger, the barrel comprising a lubricity coating on a plastic substrate, made by:
 (a) providing a gas comprising an organosilicon precursor, and optionally O 2 , and optionally a noble gas, in the vicinity of the substrate surface; and   (b) generating a plasma in the gas, thus forming a coating on the substrate surface by plasma enhanced chemical vapor deposition (PECVD).