Apparatus for percutaneously creating native tissue venous valves
US8177802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jun 25, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Percutaneous apparatus for forming a bicuspid venous valve from autologous tissue are disclosed. A multilumen catheter is disclosed that includes a delivery shaft positioned on either side of the balloon. When the balloon is inflated within the vein at a treatment location where a bicuspid valve is to be created, the delivery shafts are pressed into the wall of the vein by the inflated balloon so that exit ports in the delivery shafts are at diametrically opposed locations. The delivery shafts may than be used to deliver puncture elements through the exit ports and into the vessel wall to gain access to a subintimal layer of the vein wall. In this manner, the inventive multilumen catheter aids in making properly positioned flaps of venous tissue for creating a bicuspid venous valve from autologous tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.