Syringe and gasket systems
AssigneeSio2 Medical Products, Inc.
InventorsRobert S. Abrams, Kenneth Wade Kelly, Ahmad Taha, Benjamin Hunt, Brian Russell Lilly, Ralf Kibele
Life of this patent
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Abstract
A process for producing gaskets with an improved channel for use in matched syringe and plunger systems, preferably prefilled plastic syringe systems. In particular, an improved process for making and inspecting continuous channels in a gasket film by laser treatment. The gaskets are useful in matched syringe and plunger systems with high and consistent container closure integrity (CCI), and consistent break loose and glide forces over time, and sealability.
Claims18
A process for making one or more continuous channels in a film residing on at least a circumferential outer surface portion of a gasket, the gasket comprising a main body made of an elastic material, the main body having a circumferential surface portion and an internal cavity in its center, the cavity being defined by an inner surface portion of the gasket and being open at one end, the process comprising the following steps:
- (a) inserting a portion of one end of a mandrel into the open end of the cavity;
- (b) securing the gasket to the mandrel;
- (c) positioning the mandrel and secured gasket in proximity to a laser;
- and
- (d) applying a laser beam emitted from the laser to one or more selected locations on a surface portion of the film residing on the circumferential outer surface portion of the gasket while rotating the mandrel and the secured gasket along the mandrel's longitudinal axis to produce one or more continuous channels in the film, the channels extending around the entire circumference of a circumferential outer surface of the gasket.
Dependencies are inferred from the claim text.