Therapeutic agent coated angioplasty balloon with embolic filter and protective cover
US10849730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Various implementations of a percutaneous transluminal angioplasty device include a catheter, a filter, and an expandable balloon. The filter is coupled adjacent a distal end of the catheter and is movable between an unexpanded and expanded configuration via a filter activation wire extending through a lumen of the catheter. An anti-stenotic therapeutic agent is disposed on an outer surface of the balloon, and the balloon is disposed on the catheter proximally of the filter. An axial movable sheath is positioned over the balloon and filter during deployment to a target site and is axially retracted away from the filter and balloon prior to treatment of a lesion. At the target site, the exposed filter is expanded via the filter activation wire. Then, the exposed balloon is inflated to dilate and deliver the therapeutic agent to the lesion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.