Devices and methods for controlling expandable prostheses during deployment
US8317859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | May 23, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/9665
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Prosthesis delivery devices and methods are provided that enable precise control of prosthesis position during deployment. The catheter for delivering a prosthesis to a treatment site in a body lumen typically carries one or more self-expanding tubular prostheses within a sheath. A radially expandable control member is positionable within the prostheses and has an expanded shape which engages an inner surface of the prostheses to urge the prostheses outwardly against the sheath. The radially expandable control member therefore controls axial position of the prostheses during deployment. Thus one or more prostheses may be deployed at a treatment site precisely. When multiple prostheses are deployed, excessive spacing or overlap between adjacent prostheses is minimized. The prostheses of the present invention are often deployed in stenotic lesions in peripheral arteries as well as coronary arteries and other body lumens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.