From what I can tell, you will need to get permenant residence in Sweden before you can sponsor your a partner to move to Stockholm. You should consult an immigration expert before you begin the process - some countries require a couple to be married if they want to sponsor each other.
Check out the Visas for Sweden page for some background information.
Expat Health Insurance
Cigna Global Health Insurance
With Cigna, you won't have to rely on foreign public health care systems, which may not meet your needs. Cigna allows you to speak to a doctor on demand, for consultations or instant advice, wherever you are in the world. They also offer full cancer care across all levels of cover, and settle the cost of treatments directly with the provider. Cigna is currently offering a 10% discount for seniors (over 60) on their Silver package.
Sirelo has a network of more than 500 international removal companies that can move your furniture and possessions to your new home. By filling in a form, you’ll get up to 5 quotes from recommended movers. This service is free of charge and will help you select an international moving company that suits your needs and budget.