IT WAS REPORTED THAT DURING HOMECARE A RENASYS TOUCH DEVICE GAVE A BLOCKAGE WARNING. AFTER CHANGING THE CANISTER, THE DEVICE WORKED BUT 5 MINUTES LATER IT DISPLAYED THE BLOCKAGE WARNING AGAIN. THE PATIENT WAS ADVISED TO CONSULT FOR A DRESSING CHANGE. NO BACK-UP WAS AVAILABLE. THE SERIAL NUMBER IS NOT AVAILABLE.