Mri enhancing intravascular device with trimmable capacitor

Details Mri enhancing intravascular device with trimmable capacitor Mri enhancing intravascular device with trimmable capacitor

G - Physics

01

R

G01R 33/28 (2006.01) A61B 5/055 (2006.01) G01R 33/36 (2006.01)

Patent

CA 2495892

The present invention is directed to an MIR enhancing intravascular device (200) deployable in a body. In one embodiment, the MRI enhancing device (200) is formed of a wire loop (218) and a capacitor that is at least partially formed by the wire used in forming the wire loop (218) . The device (200) may comprise a dielectric material (410) displaceably movable between the plates of the capacitor when the wire is in the body to vary the capacitance of the capacitor.

La présente invention concerne un dispositif (200) intravasculaire de rehaussement de signal IRM pouvant être déployé dans le corps d'un patient. Dans un mode de réalisation, ce dispositif (200) de rehaussement de signal IRM comprend une boucle de fil métallique (218) et un condensateur formé au moins partiellement par le fil métallique utilisé pour former ladite boucle de fil métallique (218). Le dispositif (200) selon l'invention peut comprendre un matériau diélectrique (410) qui peut être déplacé sélectivement entre les plaques du condensateur lorsque le fil métallique se trouve dans le corps du patient de façon à faire varier la capacité du condensateur.

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