Back to results
US 10,898,329 B2Granted
Testing apparatus for prosthetic device
AssigneeEdwards Lifesciences Corporation
InventorsSalvador Marquez, Lynn T. Dang, Javier A. Sanguinetti, Emily Cheng Zhou, Gary Alan Breitbach
Life of this patent
Estimating the term…
Abstract
A testing apparatus is disclosed herein for testing properties of a prosthetic device. The testing apparatus may comprise a dual-drive pulsatile flow tester with the ability to determine coaptation of valve leaflets of a prosthetic device. The testing apparatus may be able to test prosthetic heart valves and reproduce physiological conditions of a prosthetic heart valve.
Claims25
A testing apparatus for a prosthetic valve, the testing apparatus comprising:
- a flow channel having a first end portion and a second end portion, and configured to hold a test fluid;
- a retainer configured to hold the prosthetic valve within the flow channel;
- a first fluid driver coupled to the first end portion of the flow channel and configured to move to flow the test fluid through the prosthetic valve in an outflow direction of the prosthetic valve, and configured to provide a pressure of the test fluid on an inflow side of the prosthetic valve;
- a second fluid driver coupled to the second end portion of the flow channel and configured to move to flow the test fluid through the prosthetic valve in the outflow direction of the prosthetic valve, and configured to provide a pressure of the test fluid on an outflow side of the prosthetic valve;
- and
- a controller configured to:
- move the first fluid driver and the second fluid driver to flow the test fluid through the prosthetic valve in the outflow direction of the prosthetic valve when the prosthetic valve is in an open state,
- operate the first fluid driver to provide a pressure profile of the test fluid on the inflow side of the prosthetic valve when the prosthetic valve is in a closed state, and
- operate the second fluid driver to provide a pressure profile of the test fluid on the outflow side of the prosthetic valve when the prosthetic valve is in the closed state.
6 more elements
A method comprising:
- providing a prosthetic valve in a flow channel of a testing apparatus, the testing apparatus including a first fluid driver coupled to a first end portion of the flow channel and a second fluid driver coupled to a second end portion of the flow channel, the flow channel including test fluid positioned therein;
- operating the first fluid driver and the second fluid driver to flow the test fluid through the prosthetic valve in an outflow direction of the prosthetic valve when the prosthetic valve is in an open state;
- operating the first fluid driver to provide a pressure profile of the test fluid on an inflow side of the prosthetic valve when the prosthetic valve is in a closed state;
- and
- operating the second fluid driver to provide a pressure profile of the test fluid on an outflow side of the prosthetic valve when the prosthetic valve is in the closed state.
2 more elements
Dependencies are inferred from the claim text.