Expandable member systems and methods for drug delivery
US11672959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2020 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Jan 16, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/105
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Described here are systems and methods for delivering an active agent to target tissues of the ear, nose, or throat using an expandable member having drug crystals layered thereon, and methods for manufacturing such systems. The expandable member can be delivered to the target tissues in a low-profile configuration and expanded to contact and/or dilate surrounding tissue. Expansion of the expandable member transfers the drug crystals to the target tissues, which then act as an in situ depot that enables maintenance of a therapeutic level of an active agent for a desired time period after removal of the expandable member. Multiple expansions of a single expandable member can be employed during treatment. For example, the systems and methods can be useful when it is desired to treat multiple paranasal sinuses with a single expandable member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.