Polymeric injection systems
AssigneeCredence Medsystems, Inc.
InventorsMina M. Leung, Jeff Tillack, Stephen H. Diaz, Alan E. Shluzas
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Abstract
An injection system includes a molded body member having a body connection member at a distal end of the molded body member. The system also includes a needle hub assembly coupled to the distal end of the molded body member. The needle hub assembly includes a needle hub coupled to the body connection member of the molded body member, a needle coupled to the needle hub, and a barbed band disposed around a proximal end of the needle hub and having a barb. The barbed band allows rotation of the needle hub assembly relative to the body connection member in a first direction, while preventing rotation of the needle hub assembly relative to the body connection member in a second direction.
Claims10
An injection system, comprising:
- a molded polymer body member having a body connection member at a distal end of the molded polymer body member;
- and
- a needle hub assembly coupled to the distal end of the molded polymer body member, the needle hub assembly comprising:
- a needle hub coupled to the body connection member of the molded polymer body member,
- a needle coupled to the needle hub, and
- a separately formed metal barbed band coupled to and disposed around a proximal end of the needle hub, the metal barbed band having:
- an integrally formed barb, and
- an integrally formed longitudinal extension configured to be received in an opening in the needle hub to prevent relative rotation of the metal barbed band and the needle hub,
- wherein the metal barbed band allows rotation of the needle hub assembly relative to the body connection member in a first direction, while preventing rotation of the needle hub assembly relative to the body connection member in a second direction by the barb digging into the molded polymer body member.
Dependencies are inferred from the claim text.