Maquet 6670360 Expiratory membrane Getinge 6868369 Expiratory membrane Original

The Maquet 6670360 / 6868369 Valve Membrane is the original equipment manufacturer (OEM) replacement membrane for the expiratory cassette used across the Maquet / Getinge SERVO ventilator family, including the expiratory cassettes fitted to SERVO-i, SERVO-s, and SERVO-U systems.

Although Maquet documents the expiratory cassette as a sealed precision unit that must not be disassembled, the valve membrane is the single component designed for field replacement within the cassette. This elastic membrane is the working heart of the expiratory valve: it flexes tens of millions of times under solenoid control to meter the release of exhaled gas and hold the prescribed PEEP at the patient airway.

Maquet estimates the membrane's operating capacity at approximately 10 million breathing cycles, after which its sealing and response characteristics gradually degrade. The genuine membrane is supplied as a precision-molded elastomer component (order number 6670360 distributed as a multi-piece pack, with 6868369 covering the current-generation cassette configuration), manufactured to the exact durometer, geometry, and gas-compatibility specifications of the original installation. When the ventilator's Status window reports low remaining cassette capacity, or an internal leakage test points to the expiratory valve, installing the genuine membrane restores the cassette's valve performance without replacing the entire assembly.

The 6670360 / 6868369 valve membrane is applied during the servicing of Maquet SERVO-series expiratory cassettes — the removable expiratory modules fitted to SERVO-i, SERVO-s, and SERVO-U ventilators operating in Intensive Care Units (ICU), NICU/PICU, Emergency Departments, Operating Rooms, and Respiratory Care Departments. It is the key consumable for hospital biomedical engineering departments, third-party service organizations (ISOs), and ventilator refurbishment providers who maintain SERVO ventilator fleets.

• Scheduled membrane renewal when the cassette's remaining operating capacity (displayed in the ventilator's Status window) approaches its limit.
• Corrective repair when the pre-use check or an internal leakage test identifies expiratory valve irregularities — where the service manual directs technicians to verify the membrane is clean and correctly seated, and to replace it if required.
• Cassette reconditioning during between-patient reprocessing, when a worn membrane is exchanged so the cassette returns to clinical rotation in verified condition.

Note: All brand names above are for reference only.