Dilatation tester for a stent-graft prosthesis
US9642696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2015 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jul 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0089
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dilatation or fatigue tester for a stent-graft prosthesis includes a sample holder having a compressible member that defines a chamber for receiving a stent-graft prosthesis in an expanded state, a bearing assembly disposed to contact and act on an exterior surface of the compressible member of the sample holder, and an actuation assembly operably coupled to the bearing assembly for rotating the bearing assembly relative to the sample holder. Rotation of the bearing assembly cyclically compresses the compressible member of the sample holder to thereby provide cyclical radial loading and unloading of a stent-graft prosthesis received therein for simulating physiologic loading conditions of a stent-graft prosthesis within a vasculature due to a beating heart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.