Drug delivery devices and methods
US11992583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Sep 6, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Drug delivery devices are provided in which much of a drug payload within the device remains within an area proximal to a wall of the device through which the drug must pass for release of the drug from the device into a patient. In one case, the device may include a drug reservoir portion which has a drug reservoir lumen bounded by a reservoir wall having an inner surface; a drug located in the drug reservoir lumen; and a core region which does not comprise the drug, wherein the drug is disposed between the inner surface of the reservoir wall and the core region. The device may be elastically deformable between a first shape suited for insertion through a lumen into a body cavity of the patient and a second shape suited to retain the device within the body cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.