Actionscript 3 :: Reloading A Component But Maintaining The Same Instance In Flex?

I have a canvas component called myCanvas and I instantiated it with

var myCanvasPage:myCanvas = new myCanvas;
this.addChild(myCanvasPage);

Then I want to essentially reload myCanvasPage later on. In effect I want to do this:

this.removeChild(myCanvasPage);
var myCanvasPage:myCanvas = new myCanvas;
this.addChild(myCanvasPage);

except instead of creating a new instance of myCanvas, I want to use the already created instance of myCanvas and essentially reload or re-create it but making sure that the instance name and references to it remain the same.