Patent ID: 6447610
Filing Date: 2002-09-10
Classification: A61M,B05C

Abstract:
An apparatus for coating an inside wall of an elongated syringe body, the apparatus comprising:a rod fittable inside the syringe body and formed with a pair of radially outwardly open grooves and with a passage opening at one of the grooves; an applicator ring having an outer surface and set in the one groove; means connected to the passage for supplying at least the outer surface of the applicator ring with a coating of silicon oil; a scraper ring set in the other of the grooves; and means for displacing the rod and the coated ring from a rear end to a front end of the body with the ring in continuous annular engagement with the inside wall thereof so as to transfer the oil from the ring to the inside wall and for displacing the rod and the scraper ring from the front end to the rear end of the body with the scraper ring in continuous annular engagement with the inside wall so as to scrape excess silicone oil from the inside wall.