Alaris Medley 8100 Infusion Pump

The Alaris Medley 8100 (now often referred to as the BD Alaris Pump Module) is a large volume infusion pump designed to work as part of the modular Alaris System. It requires the Alaris PC Point of Care unit (Model 8000 or 8015) to operate.

The following list details the key features and technical specifications for the Alaris 8100 Pump Module.

Features and  Specifications

• Device Type: Large Volume Pump (LVP) Module.
• Compatibility: Connects to the Alaris PC Unit (Point-of-Care Unit).2 Up to 4 pump modules can be connected to a single PC Unit.
• Mechanism: Positive displacement.
• Dimensions: 3.3″ W × 8.9″ H × 5.5″ D (8.4 cm × 22.6 cm × 14 cm).
• Weight: Approximately 2.5 lbs (1.13 kg).
• Power Source: Powered directly by the Alaris PC Unit.

Infusion Capabilities

• Flow Rate Range:
  • 0.1 to 99.9 mL/h (in 0.1 mL/h increments).
  • 100 to 999 mL/h (in 1 mL/h increments).
• Volume to be Infused (VTBI): 0.1 to 9999 mL.
• KVO (Keep Vein Open) Rate:
  • Configurable from 0.1 to 20 mL/h.
  • Typically defaults to 1 mL/h (or the set infusion rate if lower than 1 mL/h).
• Rate Accuracy: ±5% at rates between 1 and 999 mL/h (±5.5% at rates < 1 mL/h).
• Infusion Modes:
  • Continuous
  • Intermittent
  • Bolus Dose
  • Secondary (“Piggyback”) Infusion1

Pressure & Occlusion Settings

The pump offers specialized pressure sensing to detect blockages in the line.

• Occlusion Pressure Limit: User-selectable from 50 to 525 mmHg.
• Increments: Adjustable in 25 mmHg increments.
• Pump Mode (Automatic):
  • At rates ≥30 mL/h: Fixed at 525 mmHg.
  • At rates <30 mL/h: Varies linearly to optimize response time.
• Dynamic Pressure Display: A bar graph on the PC Unit screen shows real-time in-line pressure relative to the alarm limit.

Safety Features

• Guardrails Suite MX: When used with the Alaris PC Unit, the pump utilizes “Hard” and “Soft” safety limits for drug dosing (requires hospital dataset).
• Air-in-Line Detection: Ultrasonic detection with configurable thresholds.
  • Single Bolus Setting options: 50, 75, or 250 microliters (nominal).
  • Anesthesia Mode: up to 500 microliters.
• Free-Flow Protection: Uses Alaris administration sets with SmartSite valves that automatically close to prevent accidental free-flow when the tubing is removed from the pump.
• Panel Lock: Tamper-resist feature available on the PC Unit.

Environmental Specifications

• Operating Temperature: 41°F to 104°F (5°C to 40°C).
• Storage Temperature: -4°F to 140°F (-20°C to 60°C).
• Atmospheric Pressure: 525 to 4560 mmHg.

Compatible Tubing

• Administration Sets: Requires dedicated Alaris Pump Module sets (e.g., Model 2400 series).
• Set Features: Integrated safety clamps and silicone pumping segments designed specifically for the 8100 module mechanism.