Multi-dose dispenser
US12239829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Feb 16, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31508
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-dose dispenser comprising an inner housing (16) and an outer housing (12), the inner housing (16) being movable within the outer housing (12) for a defined distance, a plunger rod (20) comprising a shaft (66) mounted within the inner housing (16), the shaft (66) having a plurality of spaced apart teeth (68) formed on the shaft (66), an actuator (22) located at one end of the shaft (66), the inner housing (16) having at least one pawl (70) arranged to engage with the teeth (68), a syringe (74) mounted interiorly of the inner housing (16), the syringe (74) being arranged such that the shaft (66) engages with a plunger within the syringe (74), and a spring member (18), the spring member (18) being biased between the inner housing (16) and the outer housing (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.