Patent ID: 8163326
Filing Date: 2012-04-24
Classification: A61L,A61M,G01R

Abstract:
1. A method of enhancing the visibility of an insertable or implantable medical device under MRI, the medical device comprising a coating, the coating consists of a crosslinked hydrogel polymer and a compound comprising hydroxyl groups, the compound comprising hydroxyl groups is glycerin, the visibility of the medical device is enhanced under MRI by altering the magnetic properties of detectable protons associated with the device relative to detectable protons in the surrounding environment cross-linking of the cross-linked hydrogel polymer to varying degrees on at least a portion of said device, the medical device is inserted and/or implanted in a body lumen, the position of the medical device is determined by distinguishing the detectable protons associated with the device relative to the detectable protons in the surrounding environment with MRI.