Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Magnetic imaging agent
Reexamination Certificate
2005-03-22
2005-03-22
Hartley, Michael G. (Department: 1616)
Drug, bio-affecting and body treating compositions
In vivo diagnosis or in vivo testing
Magnetic imaging agent
C424S009322, C424S009323
Reexamination Certificate
active
06869591
ABSTRACT:
An improved contrast agent for magnetic resonance imaging comprises particles to each of which is coupled a multiplicity of chelating agents containing paramagnetic ions. In the improved agent, the position of the ion is offset from the surface of the particle so as to improve the relaxivity imparted by the contrast agent.
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Lanza Gregory
Wickline Samuel A.
Barnes-Jewish Hospital
Hartley Michael G.
Morrison & Foerster / LLP
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