Overview

The Philips IntelliVue M3001A (Option A04C18) is the most fully featured single-module configuration available in the M3001A family for facilities using Nellcor OxiMax sensors on the Hardware Revision C platform. The C18 designation combines both extended measurement packages into one: the 12-lead ECG capability of the C12 option and the invasive pressure/temperature channel of the C06 option. The result is a module capable of acquiring 3-, 5-, and 12-lead ECG — including EASI-derived 12-lead ECG using only 5 electrodes — full arrhythmia and ST analysis, QT/QTc monitoring, impedance respiration, Nellcor OxiMax-compatible SpO2, oscillometric NBP, and either invasive blood pressure or temperature, all within a single plug-and-play module that docks directly to any compatible IntelliVue host monitor. The A04C18 is the Hardware Revision C equivalent of the A02C18: clinically identical in every measurement capability with OxiMax sensors connecting through the M1943NL adapter cable, built on the newer internal platform identified by serial number prefixes DE610, DE632, DE717, and DE907 where the DC/DC power circuit is integrated onto the main board. As with all M3001A C18 configurations, invasive pressure and temperature share a single connector and cannot be used simultaneously — confirmed in Philips OEM service documentation for both the C06 and C18 options. Patient demographics, up to eight hours of trend data at one-minute resolution, and active measurement settings are stored in the module and travel with the patient between IntelliVue host monitors.

12-Lead ECG — Conventional Capture and EASI

The C18 option provides conventional 12-lead ECG capture using a 10-electrode lead set connected to a compatible 10-lead trunk cable, delivering diagnostic signal quality as defined in the ANSI/AAMI EC11-1991 standard when used with a compatible IntelliVue host monitor. Any number of electrodes between 3 and 10 can be used for ongoing ECG monitoring using conventional lead placements, giving clinical teams the flexibility to apply fewer electrodes for routine rhythm monitoring and the full 10-electrode set when a documented 12-lead capture is required. When connected to the IntelliVue Information Center iX, 12-lead ECG captures can be transmitted to and stored in a compatible ECG management system, and previously acquired ECGs can be retrieved at the bedside. EASI ECG provides a parallel path to 12-lead data using only 5 electrodes in the EASI placement configuration, deriving 12-lead waveforms mathematically from the 5-electrode signal. EASI reduces the number of patient connections, minimizes interference with procedures, and improves patient comfort during extended monitoring — particularly useful in post-operative recovery and transport settings where access to the chest is limited. Up to 12-lead ST segment analysis with configurable alarm thresholds and QT/QTc interval monitoring are also included, providing comprehensive cardiac surveillance across the full range of monitoring needs the A04C18 is likely to encounter in cardiovascular and critical care environments.

The C18 Channel — Invasive Pressure or Temperature

The C18 option includes the same combined invasive pressure and temperature connector found in the C06 configuration. This single connector accepts either an invasive pressure transducer (colored red) or a temperature probe (colored brown), enabling the module to deliver arterial line pressure waveforms and numerics — systolic, diastolic, and mean — or continuous temperature monitoring depending on which device is connected. A critical operational detail confirmed in Philips OEM service documentation is that invasive pressure and temperature cannot be used simultaneously on this connector, and this constraint applies to both C06 and C18 configurations equally. If simultaneous pressure and temperature monitoring is required, an MMS extension module such as the M3012A or M3015A must be added. The invasive pressure channel supports zeroing via a dedicated button on the module and is compatible with standard Philips-approved invasive pressure transducer kits and adapter cables for BD, Utah, and B. Braun connector styles.

A04C18 vs. A02C18 — Hardware Generation and Parts Compatibility

The A04C18 and A02C18 are clinically equivalent — same OxiMax SpO2 interface, same M1943NL adapter cable, same OxiMax sensors, same 12-lead ECG capability, same C18 pressure/temperature connector behavior, and the same host monitor compatibility. The difference is entirely internal. The A04C18 is built on Hardware Revision C, identified by serial number prefixes DE610, DE632, DE717, and DE907. On this hardware generation, the DC/DC power circuit is integrated onto the main board, a change from the A02C18’s earlier Hardware Revision A and B units where the DC/DC board is a separate removable component. This architectural difference means internal parts are not interchangeable between the two options. Biomedical technicians sourcing parameter boards, pump assemblies, or other internal components for an A04C18 must confirm the hardware revision from the serial number prefix and option string before ordering. The A04C18 parameter board carries OEM part number M3001-68555 for the standard A04 configuration. For clinical purchasing and materials management teams, the A02C18 and A04C18 can be used in the same IntelliVue fleet without any operational difference at the bedside — the hardware distinction is a parts and serviceability consideration, not a clinical one.

Nellcor OxiMax SpO2 and NBP in the C18 Configuration

The Nellcor OxiMax-compatible SpO2 interface in the A04C18 provides SpO2 saturation, pulse rate, and a real-time plethysmogram waveform. OxiMax sensors connect to the module’s SpO2 port via the M1943NL adapter cable, which bridges the module’s 8-pin D-Connect to the OxiMax connector standard. The OxiMax platform — maintained by Medtronic — supports a broad catalog of adult, pediatric, and neonatal sensors for finger, forehead, ear, and multisite applications, each carrying an embedded identification chip that communicates sensor type and calibration data to the monitor. The addition of 12-lead ECG and the C18 pressure/temperature channel does not affect the OxiMax interface or sensor compatibility in any way. Facilities already running OxiMax sensors on A04, A04C06, or A04C12 modules will find the A04C18 uses identical sensors and the same M1943NL adapter cable. Non-invasive blood pressure uses the oscillometric method with adult, pediatric, and neonatal modes. The NBP pneumatic assembly requires a calibration check once every two years per OEM service documentation.

A04C18 vs. A04C06 and A04C12 — Understanding the Option Structure

The three C-option suffixes in the M3001A A04 family represent distinct additions to the A04 standard parameter set. The C06 adds the invasive pressure/temperature channel only, with no 12-lead ECG. The C12 adds conventional 12-lead ECG only, with no invasive pressure or temperature. The C18 combines both. For facilities that need both 12-lead ECG documentation and at least one hemodynamic or temperature measurement in a single Hardware Revision C OxiMax MMS module, the A04C18 is the only configuration that delivers both without requiring a separate module or extension. For facilities that need only one of those additions, the A04C06 or A04C12 is the more focused and typically less costly selection. The invasive pressure/temperature constraint — that pressure and temperature cannot be used simultaneously on the module’s single shared connector — applies equally to the A04C06 and A04C18. Facilities requiring simultaneous pressure and temperature alongside 12-lead ECG should source the A04C18 paired with an M3012A or M3015A extension.

Patient Data Portability and Trend Storage

The M3001A A04C18 stores its complete patient record internally. Up to eight hours of numeric trend data at one-minute resolution — spanning ECG-derived values, SpO2, respiration, NBP, and invasive pressure or temperature — is held within the module rather than on the host monitor. Patient demographic information, active measurement settings including ECG lead configuration and display preferences, and NBP calibration data are also resident in the module. When the A04C18 docks to a new IntelliVue host, this complete record uploads automatically without manual re-entry, and both 12-lead ECG capability and the pressure channel zeroing settings are immediately available without reconfiguration. The module retains the full patient record for up to six hours while disconnected, supporting transport between the ICU and OR, imaging, or procedure areas without data loss.

MMS Extensions and Simultaneous Pressure and Temperature

For facilities that need simultaneous invasive pressure and temperature monitoring alongside the A04C18’s 12-lead ECG capability, MMS extension modules can supplement the single C18 connector. The M3012A Measurement Server Extension adds an additional pressure and temperature channel, enabling the C18 connector and the extension’s channels to be used concurrently — in practice allowing one channel for invasive pressure and one for temperature at the same time. The M3015A extension adds sidestream CO2 capnography and an additional pressure/temperature channel. The M3016A adds mainstream CO2. These extensions attach physically to the M3001A and inherit power and network connectivity from the host monitor through the module, requiring no separate power supplies or additional MSL cables.

Host Monitor Connectivity and System Integration

The M3001A A04C18 connects to compatible IntelliVue host monitors in either the direct-dock configuration or the remote configuration via MSL cable. Once connected, all monitoring, alarm, and configuration functions are managed through the host monitor’s interface. The A04C18 is compatible with the full IntelliVue MP-series platform (MP20 through MP90), the MX-series monitors, and the M3046A (M/M4 series) running Release E or higher software. Biomedical staff should verify that the specific host monitor’s software revision is supported by the Hardware Revision C platform before deploying A04C18 units in a mixed-revision fleet. When the host monitor is networked to the IntelliVue Information Center, all measurement data from the A04C18 — including 12-lead ECG captures, invasive pressure waveforms, and temperature — flows transparently for central monitoring, trend archiving, ECG storage and retrieval, and clinical reporting.

IPR Medical — Buy, Sell, Repair, and Parts

IPR Medical is a secondary market specialist for Philips IntelliVue patient monitoring equipment, including the M3001A across all option configurations and hardware revisions. For the M3001A A04C18, IPR Medical purchases Hardware Revision C units, sells tested and refurbished modules, and provides repair services for component-level issues including the NBP pneumatic assembly, OxiMax SpO2 interface circuitry, invasive pressure and temperature interface, ECG acquisition hardware, and MSL connectivity. Because the A04C18 uses hardware-revision-specific internal components, IPR Medical’s familiarity with the M3001A hardware revision structure is a meaningful advantage when sourcing replacement parts or evaluating repair options. IPR Medical also stocks commonly requested accessories for the A04C18, including 10-lead ECG trunk cables and leadsets for 12-lead capture, 5-lead and 6-lead cables for standard and EASI monitoring, the M1943NL OxiMax adapter cable, Nellcor OxiMax sensors, NIBP cuffs and hoses, IBP adapter cables, temperature probes, and MSL cables. Contact our team to confirm current availability, hardware revision, or parts compatibility for your specific fleet.

IPR Medical buys, sells, repairs, and stocks parts for the Philips IntelliVue M3001A. Contact IPR Medical at 855-477-8866 or cs@iprmed.com with service or software questions.

Trademark Notice: Philips, Nellcor, and all other brand names, model names, and part numbers shown are trademarks of their respective owners and are used on this page only to identify the original manufacturer’s equipment offered here, consistent with nominative fair use. This listing is offered by IPR Medical, an ISO 9001:2015-certified independent service organization, and is not sponsored by, affiliated with, or endorsed by Philips or Nellcor.