Apparatus and methods for drug delivery using multiple reservoirs
US10188550B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2014 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | May 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31598
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cartridge, including a first member that defines an inner volume and a second member disposed therein, is disposed in a housing. A first reservoir is disposed in the inner volume in a position distal to the second member. The first member is partially disposed in a second reservoir, defined by the housing. The second member is configured to be moved from a first position, in which the first reservoir contains a drug and the second reservoir is fluidically isolated from the inner volume, toward a second position, in which the first reservoir and the second reservoir are in fluid communication with the inner volume, such that the second reservoir receives a volume of the drug from the first reservoir. The first member and the second member are collectively moved relative to the second reservoir to expel the volume of the drug from the second reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.