Injection device comprising an improved delivery element
US11458257B2 · kind B2 · utility
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24References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Oct 25, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/581
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection device having a delivery element with an inner thread may be driven by rotation and includes a cylindrical outer wall region, which is substantially smooth. Such features provide a delivery element configured such that it is less intimidating to patients than known threaded rods, and may facilitate easy cleaning. The delivery element may be non-rotatably guided and axially spring-loaded, and may be inserted axially into the housing when the reservoir is replaced. The driving thread element for the delivery element may be mounted in the vicinity of the distal end of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.