From a technical perspective, pre-filled catheter flushing devices use a built-in pump or pressure system to inject pre-filled flushing fluid into the catheter at a specific pressure and flow rate, effectively removing blood, drug residues, or other blockages. Their design typically takes aseptic requirements into account, using disposable packaging to avoid the risk of cross-infection. Furthermore, some high-end models are equipped with pressure regulation functions to accommodate the flushing needs of different types of catheters.
