The Mindray WATO EX-20 Anesthesia Machine is a compact, highly reliable anesthesia workstation designed to bring premium performance and stability to routine clinical procedures. Utilizing engineering architectures from Mindray's high-end anesthesia platforms, the EX-20 seamlessly balances cost-effectiveness with critical safety features. It delivers exceptionally precise tidal volumes through smart compensation technologies, making it an excellent fit for adult and pediatric patient populations.
Key Features & Capabilities
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Dynamic Gas and Leakage Compensation: Guarantees the exact delivery of targeted tidal volumes by automatically adjusting for changes in fresh gas flow and minor circuit leaks.
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Patented Three-Flow-Sensor Design: Significantly improves the accuracy of tidal volume measurements while extending the overall lifespan of the flow sensors to minimize maintenance overhead.
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Concise 7.0-Inch TFT Color Screen: Provides an intuitive, easy-to-navigate user interface that displays essential parameters alongside real-time pressure and flow waveforms without burying controls in deep menus.
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Streamlined Breathing System: The compact breathing circuit features low internal volume—ideal for efficient low-flow anesthesia. The stand-alone system can be disassembled or assembled with a single key and is fully autoclavable at 134°C.
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Comprehensive Multi-Gas Configuration: Features traditional, highly visible mechanical flow tubes supporting up to three fresh gas supplies ($O_2$, $N_2O$, and Air) alongside a built-in hypoxic guard.
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Flexible Layout & Expandability: Outfitted with standard Selectatec-compatible dual vaporizer positions with an integrated interlock system, an Auxiliary Common Gas Outlet (ACGO) for non-rebreathing circuits, and passive/active AGSS options.
Technical Specifications
| Feature | Specification |
|---|---|
| Patient Population | Adult, Pediatric (Neonatal configuration available on Vet/Elite variants) |
| Ventilation Modes | Manual, Spontaneous, VCV (Volume Control), PCV (Pressure Control - Optional) |
| Tidal Volume Range | 40 mL - 1500 mL (VCV) / 5 mL - 1500 mL (PCV) |
| Drive Type | Pneumatically driven and electronically controlled |
| Vaporizer Slots | Up to 2 positions with Selectatec interlocking functionality |
| Battery Run Time | Up to 90 minutes (Standard single battery) / Up to 150-240 minutes (Dual battery upgrades) |
| Monitoring Parameters | Tidal volume, O2 concentration, airway pressure, minute volume, PEEP, frequency |
| CO2 Canister Capacity | 1.5 L |
Tags: Mindray, WATO EX-20, WATO Series, Anesthesia Machine, Anesthesia Workstation, OR Equipment, Low Flow Anesthesia, Selectatec Interlock

