Selective sealing cartridge
US11766528B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2019 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | May 28, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cartridges have a cartridge body configured to store a formulation, a formulation valve disposed in the cartridge body, and an air valve disposed in the cartridge body. The cartridge is configured to dispense the formulation through the formulation valve when the formulation valve and the air valve are each in an open state, and to not dispense the formulation when the formulation valve and the air valve are in a closed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.