Method and apparatus for vascular durability and fatigue testing
US7472604B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | May 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vascular prosthesis tester (10) for inducing stresses upon a vascular prosthesis (22) having a channel extending through the vascular prosthesis is disclosed. The tester includes a pump (18) adaptable to pressurize a fluid disposed within the channel to induce a radial stress upon the vascular prosthesis. The tester may further include a bend applicator (16) operable to induce a bending stress, a torque applicator (12) operable to induce a torque, a linear force applicator (52) operable to induce a linear force, and/or a stop (28) for inducing a lateral push stress upon the vascular prosthesis. A method of fatigue testing a vascular prosthesis contained within a fluid conduit is also disclosed. The method includes injecting a fluid within the inner channel and inducing a torque, bending stress, linear stress, and/or later push stress upon the vascular prosthesis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.