Device and methods for flow control of ophthalmic formulations
US11564832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/0017
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flow control device for a compressible bottle may include a reservoir, the reservoir comprising an ophthalmic formulation disposed therein, the ophthalmic formulation comprising an ophthalmic agent and a preservative; a reservoir interface, disposed at a mouth of the reservoir, the reservoir interface comprising one or more apertures, the one or more apertures in the reservoir interface fluidically connecting an interior of the reservoir and an exterior of the reservoir; a nozzle, the nozzle comprising: an outlet and a nozzle cap, the nozzle cap comprising one or more apertures, the one or more apertures in the nozzle cap fluidically connecting the outlet and a reservoir-facing surface of the nozzle; and an axis of rotation, wherein rotation of the nozzle about the axis of rotation relative to the reservoir aligns the one or more apertures in the reservoir interface with the one or more apertures in the nozzle cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.