Disposable pen needle with abbreviated non-patient end, and reusable pen interface
US10918807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Sep 21, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/321
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medicament delivery system is disclosed including disposable pen needles (10, 60, 120) each having a stainless steel needle or cannula (12, 62, 122) with a concealed or a very short non-injection end (28, 78, 128) that is not intended to pierce the septum (8) of the drug storage compartment (6) of a medication pen (2), thus reducing the risk of needle stick injuries. Several types of non-metallic interfaces (30, 80, 100) serve as intermediaries between the pen needles (10, 60, 120) and a medication pen (2) and perform the septum-piercing function. These improve the flow of medicament to the needle or cannula (12, 62, 122) due to the larger lumen of the plastic interface (30, 80, 100) that directly feeds medicament to the needle or cannula (12, 62, 122), allowing for even smaller gauge needles for improved patient comfort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.