Failsafe Controller Seals Tubing to Block Counterfeit Fluid Circuits

An authentication mark is introduced as an intermediary element between the disposable fluid circuit and the processing system. The mark serves as a mediator that enables the system to verify the authenticity and integrity of the disposable component without compromising the sterile barrier. The programmable controller reads this mark to detect failures or counterfeit components, thus resolving the contradiction between maintaining sterility and enabling failure detection.

The system performs preliminary verification by reading the authentication mark on the disposable fluid circuit before allowing operation to commence. This preliminary action ensures that only authenticated, non-counterfeit components are used. If the mark is missing, damaged, or invalid, the system prevents operation before safety risks can materialize, thus maintaining both productivity through legitimate continuous operation and reliability through pre-operation safety checks.

The authentication function is extracted from the main processing system and implemented as a separate, dedicated authentication mark on the disposable component. This extraction allows the processing system to maintain relative simplicity while incorporating authentication capability through a separate, specialized element. The programmable controller simply needs to read the mark rather than implement complex authentication logic, thus resolving the contradiction between simplicity and authentication capability.

The sealing action, which permanently disables the tubing, is converted into a benefit by using it as a failsafe mechanism. When failure or counterfeit is detected, the authentication mark triggers automatic sealing of the tubing, preventing contaminated or unauthorized components from being used. The loss of tubing reusability is transformed into a safety feature that protects patient health, thus converting what appears to be a productivity loss into a beneficial safety outcome.