Needle shield

US7559919B2 · kind B2 · utility

Assignee

• West Pharmaceutical Services, Inc. · US

Inventors

• Bernhard Pech · Niedernhausen, DE
• Bernd-Dietmar Becker · Berlin, DE
• Dirk Zolcher · Nideggen, DE
• Hubert Jansen · Stolberg, DE

Key dates

• Filing date: Apr 23, 2007
• Grant date: Jul 14, 2009
• Expiry date: Oct 19, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3109
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A needle shield is removably mountable to a syringe to protect a user from inadvertent needle pricks and limit contamination of a needle of the syringe. The needle shield includes a plug having an external surface and a shell having an inner surface defining a cavity therein. The plug is positioned within the cavity and a portion of the external surface of the plug is in contact with the inner surface of the shell at a contact area. The plug is non-removably bonded to the shell in the contact area by melting a portion of the shell and the plug in the contact area through application of radiation energy. A securing ring may alternatively be fixed to the shell through the application of radiation energy to secure a shoulder of the plug between the ring and a rib of the shell. The radiation energy is preferably applied by laser welding.