Devices and methods for flow restriction in a microfluidic circuit for drug delivery
US12420011B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Nov 10, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A device for administering a liquid drug formulation to a patient is disclosed. The device includes a reservoir configured to hold a quantity of a liquid drug formulation and a microfluidic circuit that includes at least one flow path configured to transport the liquid drug formulation from the reservoir to a drug release outlet. The microfluidic circuit includes at least one flow restrictor in the at least one flow path. The at least one flow restrictor includes a first substrate secured to a second substrate with a flow channel formed into at least one of the first substrate and the second substrate, and disposed between the first substrate and the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.