Animation of medical procedure

I need to have an animation designed for a medical procedure that are similar to those illustrated at understand.com. A sample of their product is listed here: [login to view URL] got to body and select tummy tuck [login to view URL], I desire to focus on the technical aspects without narration and without all the discussion of the ifestyleI will be using these in a power point presentation and need to be able to freely discussed the product. It may require multiple revisions.