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Additive manufacturing of MRI coils by printing and electroplating a conductive polymer
Christoph Michael Schildknecht1 and Klaas Paul Pruessmann1
1Institute for Biomedical Engineering, ETH Zurich and University of Zurich, Zürich, Switzerland
This work reports additive manufacturing of MRI coils based on 3D printing and electroplating of conductive polymer. The proposed approach greatly simplifies the fabrication of complex coil and array geometries with a high degree of accuracy and reproducibility.
The process has three major steps. First, the design is made in a CAD software. Then the part is 3D printed and finally the conductive polymer is electroplated with copper to increase its conductivity.
In the top row are renderings shown for the intended wrist coil. In the bottom row is the actual 3D printed and electroplated coil displayed. Not only does the fabricated coil look similar as in the renderings, they also closely match the geometrical dimension as specified in the CAD.