Apparatus and methods for creating a venous valve from autologous tissue
US9504572B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2010 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | May 17, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0016
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable prosthesis for percutaneous placement within a vein that forces opposing portions of the vessel wall of a vein together to create a new valve of autologous vein tissue to be operable to alternate between a valve closed configuration and a valve open configuration. When in a preset closed configuration, the implantable prosthesis pushes or pulls portions of the vessel wall of the vein together to substantially close the vein lumen and prevent retrograde blood flow from backflowing through the new valve in the valve closed configuration. The implantable prosthesis has leg portions that may be pushed apart in response to antegrade blood flow through the vein to allow the new valve to achieve the valve open configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.