SPACELABS 91496 Module OXIMAX interface board PN:670-1345-00 MMS Module keyboard

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SPACELABS 91496 Module OXIMAX interface board PN:670-1345-00 MMS Module keyboard

This board is a critical, specialized component used within Spacelabs patient monitoring systems, specifically designed to interface with Nellcor-branded OxiMax pulse oximetry sensors.

Overview
The Spacelabs 91496 Module, often referred to as the OxiMax Interface Board or Nellcor Interface Board, is a printed circuit board (PCB) that acts as a communication bridge. Its primary function is to allow a Spacelabs patient monitor (e.g., models in the Xhibit, Ultraview, or Aria ranges) to correctly interpret and process the data received from advanced Nellcor OxiMax pulse oximetry sensors.

It is not a standalone device but an internal module that gets installed inside the monitor's parameter slot.

Key Features and Functions
Protocol Translation: This is its core purpose. Nellcor OxiMax sensors use a specific, advanced digital communication protocol. Standard SpO₂ boards might only understand older or simpler analog signals. The 91496 board translates the proprietary OxiMax digital signal into a format that the host Spacelabs monitor can understand and display.

Enables Advanced OxiMax Features: By using this specific interface board, the monitor unlocks the full feature set of Nellcor OxiMax technology, which includes:

OxiMax Signal Extraction Technology: Designed to provide more accurate SpO₂ (oxygen saturation) and pulse rate readings during patient motion and low perfusion (weak blood flow).

TrueSAT® Algorithm: Nellcor's proprietary algorithm for signal processing.

SmartSat® Technology: Helps ensure accuracy across a wide range of patient conditions.

Support for Advanced Sensors: Enables the use of Nellcor's full line of OxiMax sensors, including those with OxiMax Max-A™ adhesive, Max-F™ forehead, and Max-N™ neonatal sensors.

Power and Data Integration: The board provides the correct electrical power and handles the bidirectional data exchange between the monitor and the sophisticated OxiMax sensor.

Plug-and-Play Compatibility: For the clinician, once this board is installed in the monitor, using a Nellcor OxiMax sensor is seamless. The monitor automatically recognizes the sensor and utilizes the appropriate algorithms.

Common Applications and Compatibility
Monitors: This board is designed for integration into various Spacelabs patient monitors. Common models include the Spacelabs Xhibit, Ultraview SL, Aria Tele, and other monitors from the same product families.

Clinical Settings: These monitors, and therefore this board, are used in environments where continuous vital sign monitoring is critical:

Intensive Care Units (ICUs)

Emergency Departments (ED)

Operating Rooms (OR)

Post-Anesthesia Care Units (PACU)

General hospital floors

Importance of the Part Number (91496)
The Part Number 91496 is absolutely essential for identification and sourcing.

Specificity: It uniquely identifies this exact interface board for Nellcor OxiMax technology. Using an incorrect or generic SpO₂ board will not work with OxiMax sensors.

Genuine Part: Sourcing a board with this exact P/N ensures it is the genuine Spacelabs component, guaranteeing compatibility, performance, and safety.

What to Do If You Need a Replacement
Symptoms of Failure: A failing or failed interface board may result in:

The monitor not recognizing a connected Nellcor OxiMax sensor.

Error messages related to the SpO₂ module or sensor.

Inaccurate or erratic SpO₂/pulse rate readings.

A complete failure of the SpO₂ parameter.

Installation:

This is not a user-serviceable part. Installation must be performed by a qualified Biomedical Equipment Technician (BMET).

The technician will need to safely power down the monitor, open the casing, remove the old board (if present), install the new one, and potentially run system diagnostics or calibration to verify proper function. This ensures the device remains compliant with safety regulations (like IEC 60601-1).

Summary
In essence, the Spacelabs 91496 OxiMax Interface Board is a crucial interoperability module. It is the key that allows a Spacelabs monitor to unlock the advanced features and clinical benefits of Nellcor OxiMax pulse oximetry technology, ensuring accurate and reliable oxygen saturation monitoring for patients.