One of the main requirements to apply for the parent/grandparent Super Visa is to present a proof that you have purchased medical insurance for one year, with a minimum coverage of $100,000. The insurance must be purchased from a private Canadian insurance company and must be presented to an agent at the border.
The introduction video about Super Visa Insurance is here http://www.youtube.com/watch?v=kjtcUhC2s2g
Super Visa insurance is special Canadian medical insurance for parents and grand parents of new Canadians to get Super Visa.