To apply for a Super visa for Canada, you will have to be the parent / grandparent of a PR / citizen of Canada. Dependents cannot be included on a Canada Super visa application. If your spouse or partner will also be traveling to Canada with you, they will have to submit a separate application for the same.
A Super visa allows you to enter Canada many times, each time staying within the country for up to two years, without there being any requirement of getting your status renewed.
The super visa permits you to stay temporarily in Canada with your children and grandchildren that might either hold permanent resident status or be the citizens of Canada.
To be able to stay in Canada permanently, your Canadian child or grandchild will have to sponsor you for permanent residence through the Canadian Parents and Grandparents Program (PGP).
Yes. You will need medical insurance as part of the eligibility criteria for Canada Super visa. Proper evidence that the medical insurance has been paid for will be needed. You cannot submit quotes for the same.
Do keep in mind that the medical insurance must be from a Canadian insurance company. The medical insurance for Canada Super visa must be valid for a minimum of one year from the date of your expected entry into Canada. It should provide coverage of at least $100,000.