Canadian data is current through March 2018. All of the data comes from Health Canada, except for the categories Manufacturer Parent Company and Product Classification.
The Parent Company and the Product Classification were added by ICIJ.
The parent company information is based on 2017 public records. The device classification information comes from FDA’s Product Classification by Review Panel, based on matches of recall data from the U.S. and Canada.
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If a physical wedge for which the total field size limit perpendicular to the wedge direction is more than 10 cm larger than the field size limit in wedge direction is inserted in in-plane direction (as seen with collimator angle 0 degrees) then with very large fields perpendicular to wedge direction a part of the scattered fluence can become unmodulated by the wedge. this will result in profile "horns" close to the edge of the field.