What is the expected life span of vascular stents?
What is the expected life span of vascular stents?
For example: Universal (coronary/venous) stent WALLSTENT-UNI Boston Scientific, metal: nitinol = titanium + nickel.
How many pulsating contractions can it withstand? Is it more than 80 heart_rate * 60 min * 24 hours * 365 days * 10 years ~= 400 millions pulsations?
In artery
In vein (for extravasal compression - aortovenous conflict - arterial pulsation affects stent in vein)
How many years can (the non-grown into a vessel) areas of the stent be in the patient’s blood flow until these stent areas are destroyed?
fda.report/MAUDE/MDR/8301298
Are there any data, whether from the manufacturer or obtained statistically about stent life span?
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