IMPLANTABLE MEDICAL DEVICE AND METHOD
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United States of America Patent
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Jun 16, 2017
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Jul 21, 2016
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Abstract
An implantable medical device such as a filter includes a plurality of struts arranged in a generally conical form with each strut having a first end, a second end, and an operative length between the first and second ends. Each strut is able to flex along its operative length and includes a strut skeleton having a first flexural modulus and a reinforcement element extending along the operative length and attached to the strut skeleton. The reinforcement element and the strut skeleton together have a second flexural modulus greater than the first flexural modulus. One of the reinforcement element and the strut skeleton varies in one of amount and composition continuously along the operative length such that the second flexural modulus varies in a continuous manner along the operative length. The reinforcement element is biodegradable thereby changing the flexural modulus from the second flexural modulus to the first flexural modulus.
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