Pen needle hub injection depth optimization
US12023474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2022 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Nov 8, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/46
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle hub (10) for a pen needle is provided with an enlarged surface for contact with the skin of a patient. The enlarged surface is provided with a surface having a dimension and shape to enable a needle or cannula to penetrate the skin to a desired depth and permit substantially the entire exposed length of the needle or cannula to penetrate the skin to the desired depth. The surface of the needle hub can be formed by an inner cone shaped member (26) forming a first contact surface with a surface area of about 1-5 mm2 and an outer ring (28) at a peripheral edge forming a second contact surface with a combined surface area of about 15 to 50 mm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.