Patent ID: 7404278

Claim:
A method for producing prefillable syringes, which comprises the steps of: a) producing syringe bodies having a cylindrical drum portion with a first open end formed therein for receiving a syringe plunger and a second open end formed therein for discharging of contents; b) cleaning an inner surface of each of the syringe bodies; c) performing a siliconization step by applying a quantity of silicone, selected from the group consisting of silicone oil and silicone emulsion, to at least a partial area of the inner surface of each of the syringe bodies; c1) fixing the silicone applied on the syringe bodies by heat treatment at temperatures between 120° and 350° C.; d) removing at least part of the silicone not covalently bonded or bonded by secondary valency; and e) packaging the syringe bodies, and carrying out the steps c) through e) under controlled clean-room conditions.