Pressure indicator for medicament delivery device
US12364813B2 · kind B2 · utility
0Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Oct 15, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1401
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medicament delivery device having a reservoir for holding a medicament, a pressurizing system that dispenses the medicament from the reservoir when operating, a hollow cannula for insertion into a patient, and a fluid delivery path disposed between the pressurizing system and the hollow cannula and communicating the medicament therebetween. The medicament delivery device also has a pressure sensor external to the pressurizing system, sensing a back pressure in the fluid delivery path, and providing an indication when the back pressure drops below a predetermined threshold after the pressurizing system ceases operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.