My wife had an ileostomy in nov 2004 and subsequently developed a "sliding prolapse" which made getting a bag to stick on, a bit of a problem!! to say the least.
As the Stoma varied in diameter from 25mm to 35 mm depending on it's mood, as well as varying in length from 5 mm to 80 mm, when it goes for a walk!
Initially we had bags falling off or leaking after only 5 hours and the skin became inflamed around the Stoma. However, the use of the Eaken Seal, combined with the evaluation of virtually all the bags on the market, has resulted in a good outcome.
We now use either the Convatec or Holister two part bags with the hole prepunched to 35 mm (1 3/8 inch) and rely on the Eaken Seal to take up the gap.In most cases my wife fits the new back plate when the Stoma is retracted and only about 25mm (1 inch ); making the seal a neat fit around the Stoma.
The back plate or wafer normally stays on for about 4 days and is then replaced. Both of these bag systems have very flexible backing plates compared to the other manufacturers.
However , whilst we have now standardised on the Hollister system,we had early problems with the seal on the bottom of the bag letting go and dumping the contents on the floor. However i have made a small plastic clip that has completly solved this problem and given my wife her confidence back !!