| http://www.w3.org/ns/prov#value | - Tubular endoprostheses in the form of grafts are used to substitute for or reinforce a lumen, such as the aorta or other blood vessels which have been weakened, e.g., by an aneurysm. [0004] Typically, these endoprostheses are delivered inside the body by a catheter that supports the device in a compacted or otherwise reduced-size form as it is transported to the desired site.
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