I haven't replaced a button but I have replaced tubes a couple times. I just lay as flat as I can (in a recliner), deflate the balloon, with two fingers hold down the area around the stoma and pull it out. I have new one already set up with some lube and the syringe with water at hand. I just pop in the new one, fill the balloon, slide the keeper (only on a tube) and I am done. I don't see why doing a mic-key would be any more difficult. I am trying to get a Bard button because they last for years -- have had two. One for 5 years and another for 4 years. They do have to be replaced at least in a doctor's office but the lack of constant replacement is a plus for me.



ADMIN NOTE... Do not attempt this procedure without the guidance of your physician