Pen needle assembly

US11207472B2 · kind B2 · utility

Assignee

• Becton, Dickinson and Company · US

Inventors

• Christopher Rini · Raleigh, US
• Richard J. Klug · Roxboro, US
• Ronald J. Pettis · Durham, US
• David Huang · Shanghai, CN
• Shresta Marigowda · Stratford, US
• Todd Sack · Dover, US
• Mark Bowen · Stow, US
• Matthew Zuschlag · Dover, US
• David R. Schiff · Highland Park, US

Key dates

• Filing date: Apr 14, 2016
• Grant date: Dec 28, 2021
• Expiry date: Jan 19, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M5/349
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A needle hub assembly for a pen needle includes a needle hub, an inner shield and an outer cover. The open end of the outer cover is closed by a removable seal to access the needle hub. The needle hub has a body with a shoulder and a tower extending from the body for supporting a cannula. The inner shield fits over the tower and the cannula and includes a flange that has an outer dimension complementing the outer dimension of the needle hub and contacts the shoulder of the needle hub in the assembled condition. The outer cover encloses the needle hub and the inner shield and includes a stop member on an inner surface that contacts the flange of the inner shield to capture the inner shield between the shoulder of the needle hub and the outer cover.