Gradient coil and method to manufacture a gradient coil
AssigneeSiemens Aktiengesellschaft
InventorsSascha Fath, Ralph Kimmlingen, Johann Schuster, Lothar Schoen, Stefan Stocker
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Abstract
In a gradient coil and a method to manufacture a gradient coil for a magnetic resonance apparatus, the gradient coil has at least one saddle coil, the saddle coil having a spatially shaped, electrically conductive plate with a line-shaped recess penetrating the plate. Conductor structures that create a gradient magnetic field in an examination region when a current signal flows therethrough are formed by the recess and by the shaping of the plate. The recess is filled with an electrically insulating material before implementation of the spatial shaping.
Claims24
A gradient coil for a magnetic resonance apparatus comprising:
- an electrically conductive plate having a line-shaped recess therein that penetrates the plate, said recess defining a conductor structure on said plate that, when supplied with current, generates a gradient magnetic field for magnetic resonance imaging, said plate with said conductor structure thereon being spatially shaped to form a saddle coil;
- and
- electrically insulating material having a material composition allowing said electronically insulating material to fill said recess before spatially shaping said plate, and said electrically insulating material being configured in said recess in order to prevent winding shorts from occurring during said spatial shaping of said plate and said conductor structure thereon.
A method for manufacturing a gradient coil for a magnetic resonance apparatus comprising:
- providing an electrically conductive plate having a line-shaped recess therein that penetrates the plate;
- using the line-shaped recess, forming a conductor structure on said electrically conductive plate;
- filling said line-shaped recess with insulating material;
- and
- after filling line-shaped recess with said insulating material, spatially shaping said electrically conductive plate with said conductor structure thereon to form a saddle coil that generates a gradient magnetic field for magnetic resonance imaging when a current is supplied to said conductor structure.
Dependencies are inferred from the claim text.