Safety pen needle variable indicator
US11364350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Nov 3, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/584
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safety pen needle assembly (12) is disclosed which comprises a hub (30), a needle cannula (20) engaged to the hub (30), the needle cannula (20) having a distal end for insertion into a patient, and a proximal end extending into the hub (30), a sleeve (14) surrounding the hub (30) and needle cannula (20), a shield (16) including a window (18), the shield (16) surrounding the sleeve (14) and movable relative to the sleeve (14) from a first position, to a second position and to a third position to expose and cover the distal end of the needle cannula (20), and a spring (144) urging the shield (16) to move relative to the sleeve (14) from the second position to the third position, wherein the window (18) indicates when the needle cannula (20) is extended in the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.