CSZ Hemotherm 400MR Sub Zero Cooler

CSZ Hemotherm 400MR Heater/Cooler System

The CSZ Hemotherm 400MR is a dual reservoir heater/cooler system designed to precisely lower, raise, or maintain the temperature of water used in blood oxygenators and heat exchangers during cardiopulmonary bypass procedures. Utilizing conductive heat transfer, the Hemotherm 400MR efficiently controls blood temperature without the need for ice, streamlining setup and reducing mess. It features dual, independently controlled reservoirs for heating and cooling, ensuring rapid response times and consistent temperature management. An optional remote control allows operators to monitor and adjust settings from a distance, while a large LED readout and built-in diagnostic functions simplify operation and troubleshooting.

Key Features

• Efficient Temperature Regulation:

  • Precisely controls water temperature between 37.4°F and 107.6°F for effective blood warming or cooling.
  • Dual reservoirs enable independent heating and cooling for instant changeover.

• High Flow Rates at Low Pressures:

  • Delivers flow rates of 13 L/min (3.5 GPM) through self-sealing Hansen fittings and up to 15 L/min (4 GPM) with standard fittings.

• Enhanced Patient Safety:

  • Built-in primary and secondary high-limit and low-limit thermostats safeguard against overheating or overcooling.
  • External circuit breaker and robust safety mechanisms ensure reliable operation.

• User Convenience:

  • Easy-to-fill, plastic reservoirs with quick-connect fittings.
  • Optional remote control (model 414CE) for remote monitoring and adjustments.
  • Self-cleaning and descaling mode for minimal maintenance.
  • Compact footprint—occupies just 3.4 sq. ft. of floor space—and mobile on conductive swivel casters.

• Dual Purpose Operation:

  • Can be used with a hyper/hypothermia blanket for additional patient warming or cooling.
  • Integrated water level and pump indicators keep you informed of system status.

Detailed Specifications

Physical & Reservoir Specifications

• Dimensions:
  • Height: 32 in (81.3 cm)
  • Width: 22 in (55.9 cm)
  • Depth: 22 in (55.9 cm)
  • Weight: 198 lbs (89.8 kg)
• Reservoir Capacity:
  • Cooling: 8 quarts (7.6 L)
  • Heating: 6 quarts (5.7 L)
• Reservoir Fluid:
  • Use only sterile water or water filtered to ≤0.22 microns.
• Reservoir Features:
  • Easy-to-fill openings; plastic construction for durability.

Flow & Pressure Specifications

• Flow Rate:
  • 13 L/min (3.5 GPM) via self-sealing quick-connect Hansen fittings.
  • 15 L/min (4 GPM) with standard quick-connect fittings.
• Maximum Pressure:
  • 12.5 PSI for both heat exchanger and blanket connections.
• Connections:
  • Includes sets of 1/2″, 1/8″, and 1/4″ Hansen fittings for heat exchanger, blanket, and drainage respectively.
  • Additional 1/2″ set provided for tubing.

Electrical Characteristics

• Power Requirements:
  • Standard: 115 VAC, 50/60 Hz, 16.9 amps
  • Optional: 100 VAC, 50/60 Hz, 20 amps; 230 VAC, 50/60 Hz, 10.9 amps; 240 VAC, 50/60 Hz, 10.5 amps.
• Outlets Required:
  • 115 VAC: 20 amps, hospital-grade plug
  • 230/240 VAC: 15 amps, AC grounded with European plug.
• Current Leakage:
  • Under 300 µA for 100/115 VAC; under 500 µA for 230/240 VAC.
• Mains Supply Isolation:
  • Two-Pole Mains Power Switch.

Cooling & Heating System

• Cooling System:
  • Compressor-based system with a fluid cooling range from 32°C to 3°C.
• Heating System:
  • Power Rating for 115 VAC Units:
    • Low Heater: 300 W; High Heater: 1200 W
  • Power Rating for 230/240 VAC Units:
    • Low Heater: 800 W; High Heater: 1200 W
  • Fluid Heating Range: 25°C to 42°C.