Magnetic field source movable phantom head

Details Magnetic field source movable phantom head Magnetic field source movable phantom head

A - Human Necessities

61

B

A61B 5/05 (2006.01) G09B 23/28 (2006.01)

Patent

CA 2199578

A magnetic field source movable type phantom head has a vessel filled with physiologic saline. The vessel preferably has an inner contour corresponding to an outer contour of a cerebrum of a patient to be tested. An electrode support tube has electrodes at one end. The electrodes are arranged within the vessel and movable at least in a vertical direction toward a center of the vessel as guided by a guiding and fixing device which guides the electrode support tube in a liquid tight fashion and fixes at a predetermined position. A position of the electrode support tube is measured to determine a position of the magnetic field source in the vessel.

Une tête fictive mobile à source de champ magnétique contient un vaisseau rempli d'une solution physiologique saline. De préférence, le contour intérieur du vaisseau correspond au contour extérieur des hémisphères cérébraux du patient à examiner. Un tube de soutien d'électrodes porte des électrodes à l'une de ses extrémités. Les électrodes sont à l'intérieur du vaisseau et peuvent se déplacer au moins dans la direction verticale vers le centre du vaisseau sous le guidage d'un dispositif de fixation qui guide le tube de soutien et le fixe à un endroit prédéterminé. La position du tube de soutien est mesurée pour déterminer la position de la source de champ magnétique dans le vaisseau.

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