Basically you need to convert your Dynamo Solid to a Revit Family. You can do it in at least two ways:
A) FamilyType.ByGeometry: it creates a new family directly in your project
B) ImportInstance.ByGeometry: in your project imports only the geometry, not possible to apply attributes. Better to import it in a new family, save the family and load the family in your project
Take a look a this topics:
A) Sweep using model line and 2-D profile
B) From solid in Dynamo to element in Revit