Injection device with projections disposed on the passage to reduce the effective bore of the passage
US9522233B2 · kind B2 · utility
7Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3247
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection device includes a cap which is withdrawn from the front of the device before use to remove a boot from the needle. The cap has fingers which grip the boot and which pass down a passage through which the needle projects to inject a dose. The passage has projections disposed to reduce the effective bore of the passage, the projections having inwardly inclined resilient portions which allow the boot to be withdrawn forwardly through the passage but prevent a finger being poked into the passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.