Device and method for preventing stenosis at an anastomosis site
US12156799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2020 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | May 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/204
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to treating or preventing stenosis at an anastomosis site. In one embodiment, the present invention is a stent is curved along the longitudinal axis for placement in and adjacent to the graft orifice. In a further embodiment, the stent is drug coated to allow delivery of antivasculoproliferative drugs directly to the vicinity of the graft orifice. In a further embodiment, the stent is expandable by use of an external wire. In another embodiment, the present invention is a kit comprising the specially configured stent together with a sleeve comprising a biocompatible matrix material and a pharmaceutical agent, wherein the sleeve is applied to the external surface of the vessel or graft, resulting in extravascular delivery of a pharmaceutical agent. Methods for treating or preventing stenosis at an anastomosis site by applying the extravascular sleeve and the intravascular stent are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.