Multiple dosage injector with rack and pinion dosage system
US11628260B2 · kind B2 · utility
0Cited by
402References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31595
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dispensing mechanism for delivering a dosage of medicament including a housing, a push button, a crank arm that is slideably engageable with the push button, a ram, and a ratchet gear releasably engageable with the crank arm and ram, translation of the push button along an axis causing the crank arm to engage and rotate the ratchet gear which causes the ram to distally advance relative to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.