Mr-signal emitting coatings

A - Human Necessities – 61 – L

Patent

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Details

A61L 31/14 (2006.01) A61L 29/08 (2006.01) A61L 29/14 (2006.01) A61L 31/10 (2006.01) A61B 5/055 (2006.01) A61M 25/095 (2006.01)

Patent

CA 2485291

The present invention provides a coating that emits magnetic resonance signals and a method for coating medical devices therewith. The coating includes a paramagnetic metal ion-containing polymer complex that facilitates diagnostic and therapeutic techniques by readily visualizing medical devices coated with the complex. The present invention also provides methods by which pre-existing polymers and medical devices may be made MR-imageable. The invention also provides methods of improving MR-imageability of polymers and medical devices by encapsulating the polymers and medical devices with hydrogels.

La présente invention concerne un revêtement émettant des signaux de résonance magnétique (RM), ainsi qu'un procédé pour appliquer ce revêtement sur des dispositifs médicaux. Ledit revêtement comprend un complexe polymère contenant des ions métalliques paramagnétiques, ce complexe facilitant les techniques diagnostiques et thérapeutiques du fait que les dispositifs médicaux revêtus de ce complexe sont facilement visualisables. L'invention concerne également des procédés grâce auxquels des polymères et des dispositifs médicaux préexistants peuvent fournir des images par résonance magnétique. L'invention concerne en outre des procédés permettant d'accroître les possibilités d'obtention d'images de polymères et de dispositifs médicaux par résonance magnétique, ces procédés consistant à enrober les polymères et les dispositifs médicaux dans des hydrogels.

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