How do I make an Air Muscle with Solidworks?

Hi everybody

I want to do this :

http://www.youtube.com/watch?v=sfIyNIVYn1U

An air muscle like FESTO's air muscle, but I don't know how to do that piece, I want to model it, Is possible make and simulate an air muscle with solidworks?

SolidworksPlastics And Mold Design