Retractable sheath devices, systems, and methods
US10173038B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Dec 9, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is directed to delivery medical devices that enable consistent “on-demand” delivery of therapeutic agents to a vessel. The medical device of the current invention comprises retractable sheath comprising neckable elements. The medical device of the current invention comprises an expandable member, a hydrophilic coating comprising at least one therapeutic agent about the expandable member or structural layer and a retractable outer sheath with a selectively permeable microstructure. The design and methods disclosed herein ensures that therapeutic agent delivery occurs essentially only during retraction of the outer sheath, minimizing coating and/or therapeutic agent loss to the bloodstream and providing controlled delivery to the treatment site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.