Maquet HL20 Heart Lung Machine with 3 Roller Pumps

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- Maquet HL20 Heart Lung machine with 3 Roller Pumps

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The Maquet HL 20 Heart-Lung Machine is a high-performance cardiopulmonary bypass system designed for open-heart surgery, providing precise control over blood circulation and oxygenation while the patient's heart is stopped. Established as a "Gold Standard" in perfusion technology, it is known for its reliability, modular design, and user-friendly, centralised control system. 

Key Features and Components

- Modular Design: The HL 20 is available in three basic configurations—Vario Flex, Vario Single, and Vario Twin—and can be configured as a 4 or 5-pump platform to meet specific clinical requirements.

- Peristaltic Roller Pumps: Known for quiet and smooth operation, these pumps can be easily removed or repositioned on the console. They offer:Speed range: 0–250 rpm ± 10 rpm.

- Flow rates: Up to 10 LPM (1/2” tubing).

- Operation modes: Continuous, pulsatile, slave, and cardioplegia modes.

- System Control Panel (SCP): A central panel that manages all supervisory functions, alarms, and monitoring, featuring a single knob for settings.

- Safety Features:Emergency Backup: A battery system engages automatically, powering the entire system for 90 minutes in case of power failure.

- 24V Low Voltage: All pump modules operate on 24V for patient and operator safety.

- Safety Monitoring: Includes four-channel temperature monitoring (0–50°C), pressure monitoring (-998 to +998 mmHg), and a bubble detector (capacitive/ultrasonic).

- Optional Integration: The ROTAFLOW centrifugal pump system can be fully integrated into the console. 

Technical Specifications

- Console Construction: Durable stainless steel, equipped with four masts (two telescopic) and a fixed top shelf.

- 4 Pump Console Size: Width 34” (85.5 cm), Weight 176 lbs (80 kg).

- 5-Pump Console Size: Width 41” (103.6 cm), Weight 211 lbs (96 kg).

- Electrical: 100-115/220-240 VAC; 16A/7A Max Current. 

User Interface and Experience

- Display: Large four-digit display for pump flow/speed, and eight-digit display for operation modes.

- Cardioplegia Monitor Unit (CMU): Displays, monitors, and records cardioplegia volumes, ratios, timers, and temperatures.

- User Friendliness: Features a flexible LED lamp (6 W), and a remote control for the heater-cooler unit.

HL 20 Variations

- Vario Flex: A flexible basic unit allowing custom configuration of components.

- Vario Single: Includes the basic unit plus four single roller pump modules.

- Vario Twin: Includes the basic unit plus three single roller pumps and one twin pump module for specialised applications (e.g., paediatric perfusion, cardioplegia).

The Maquet HL20 Heart-Lung Machine is a reliable and sophisticated piece of perfusion equipment designed to support cardiac surgeries. This unit is equipped with three roller pumps, which ensure consistent and precise blood flow management during surgical procedures. Known for its durability and efficiency, the HL20 model is a trusted workhorse in many hospitals and cardiac centers globally. Despite being a used model, the machine maintains high standards of performance due to Maquet’s renowned engineering quality. It features intuitive controls that simplify operation for perfusionists and an adjustable system that can accommodate a variety of surgical needs. The machine's robust design is aimed at minimizing the risk of operational failures and ensuring patient safety. The compact and ergonomic design allows for easy integration into the operative environment. While specific technical specifications are not listed, potential buyers can expect this machine to meet high accuracy and reliability standards typical of Maquet's products. It is an ideal choice for facilities looking to enhance their cardiac surgery capabilities without compromising on quality.