Plunger and drug delivery device
US11583634B2 · kind B2 · utility
0Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2018 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present specification relates to a plunger configured to transmit a force from an energy source to a piston of a primary container, the plunger comprising a plunger rod configured to be subjected to the force from the energy source, the plunger rod having an inner surface forming a cavity, wherein a support element adapted to constrain the energy source within the cavity protrudes radially inwards from the inner surface into the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.