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OwnerMark Dehdashtian, William E. Krams +3inventors
InventorsMark Dehdashtian, William E. Krams, Sanjay Shrivastava, Nareth Dy, Adnan Nabulsi
Estimating the term…
Methods and apparatuses for testing the compliance of stents and stented grafts, including pre-testing them in a pre-tester tube prior to accelerated fatigue testing. The pre-tester tube is a simulated human vessel that may be made of animal tissue having approximately the same size as the human target vessel. The pre-test involves pressurizing the pre-tester tube at various normal and abnormal physiologic pulsed pressures with the stent or stented graft in place. By measuring the expansion of the pre-tester tube, the proper expansion rate of the stent or stented graft is determined. Those data are then used in a feedback loop to control the amount of expansion of a synthetic tester tube in the accelerated fatigue tests. The tester regulates the pressure in the tester tube to attain the proper expansion magnitude during the test. The animal tissue may be porcine tissue, in particular a porcine aorta to simulate the human abdominal aorta. Any side branches of the porcine aorta are tied off.
A stent or stented graft compliance test assembly, comprising:
A method of testing the compliance of a stent or stented graft, comprising:
A method of testing the compliance of a stent or stented graft, comprising:
Dependencies are inferred from the claim text.