Pen needle assembly
US8241257B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2009 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jan 13, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/192
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pen needle assembly is provided herein for use with a medical injector containing an injector body and a reservoir sealed by a septum encased in the injector body. The pen needle assembly includes a hub and a needle fixed to the hub. The hub is formed to be telescopingly mounted onto a distal end of the injector body using a track that accommodates a guide key. When mounting the hub of the pen needle assembly onto the injector body, a first portion of the track is configured to receive the guide key and to guide the guide key in a straight line across sufficient distance to permit a proximal end of the needle to fully pierce through the septum, without rotation of the needle. A second portion of the track is configured to permit the pen needle assembly to be turned with the proximal end of the needle being located proximally of the septum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.