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US 6,675,033 B1Granted
Magnetic resonance imaging guidewire probe
AssigneesThe Johns Hopkins University School of Medicine, Surgi-Vision, Inc.
InventorsAlbert C. Lardo, Xiaoming Yang, Ergin Atalar, Parag Karmarkar, Elliott R. McVeigh, Henry R. Halperin, Christine Enger McNamara, Paul A. Bottomley
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Abstract
The invention describes a system, method, and means for an MRI guidewire that can be visible on an MRI, can act as an antenna and receive MRI signals from surrounding subject matter, and can allow the use of multiple interventional tools without removal of the guidewire from a subject.
Claims73
A guidewire probe assembly suitable for receiving magnetic resonance signals from a sample, comprising:
- a probe shaft having a distal end and a proximate end, the probe shaft further comprising a core of non-magnetic material;
- a first insulator or dielectric attached to said core;
- a shielding disposed about at least a portion of said core;
- and
- an antenna attached to said distal end of said probe shaft, said antenna comprising a helical coil;
- wherein at least said antenna is visible on a magnetic resonance image.
3 more elements
Dependencies are inferred from the claim text.