Patent ID: 7505807
Filing Date: 2009-03-17
Classification: A61B,A61M,G01R

Abstract:
1. A system for observing delivery of material into tissue of a living patient comprising: a) a magnetic resonance imaging system comprising a magnetic resonance source, a magnetic resonance signal reader capable of reading magnetic resonance amplitude, and a first device useful in both: the first device comprising: A) an electrode electrically connected to a signal sending system or a signal receiving system that relates to the at least one medical procedure, the at least one medical procedure causing a change in a region around the electrode in addition to the material delivery and any RF microcoils associated that may be with the first device, and B) a material delivery system comprising a source of material that can be delivered from said first device to a site within a patient, the source of material being attached to said first device so that at least some of said material may be delivered by said first device, said material from said source of material comprising material which affects the amplitude of an MR signal in an aqueous solution, and the material delivery system further comprising at least one component selected from the group consisting of said electrode in the first device having at least one of a signal sending capability and a signal receiving capability distinct from said material delivery system, said magnetic resonance imaging system providing a visible image of a magnetic resonance signal from said magnetic resonance signal reader, b) said first device being observable within said tissue of a living patient by magnetic resonance imaging, and said first device also comprises C) a lumen which is capable of providing the at least one medical procedure and the lumen providing a component with the at least one signal receiving capability that is distinct from said material delivery and the at least one medical procedure is selected from the group consisting of radiation-carrying, thermal delivery, and electrical stimulus delivery; wherein an element capable of providing a charge is part of said at least one component, said charge when provided by said charge providing element being at a location on said at least one component which assists in orienting of ionic material being delivered by said at least one component within an area electrostatically near a point of release of said material from said at least one component.