An assembly of devices designed to provide partial extracorporeal respiratory support to treat acute hypercapnic respiratory failure in settings where the patient may be moved while on therapy [e.g., intensive care unit (ICU), emergency room]. It is intended to function by pumping the patient?s blood through a hollow-fibre membrane gas exchanger so that carbon dioxide is removed and oxygen added, and returning the blood to the patient?s venous system (veno-venous), typically as an alternative to mechanical ventilation. It consists of a control unit, a single-use cartridge pump, and a single-use catheter kit. The system is not intended for long-term use.