Puritan Bennett 700 Series Repair

The Puritan Bennett 700 Series ventilator is an older model ventilator system designed for intensive care settings. It is a large unit compared to modern machines. The ventilator weighs 30kg, which is nearly 66 pounds. The total system, when mounted on the cart, reaches roughly 1255mm (about 49 inches). The ventilator part measures approximately 378 mm high, 515 mm wide, and 370 mm deep, giving it a boxy style rather than a compact portable design. This design reflects the timeline in which the machine was created. In older units, durability and reliability were focused on more than portability.

Features of the 700 Series use a combination of pneumatic and electrical systems to deliver controlled ventilation. This allows clinicians to individualize care for both adult and pediatric patients. Ventilation parameters such as respiratory rate, tidal volume, and inspiratory flow are supported by these features. The Puritan Bennett 700 Series has built-in safety systems like pressure relief valves, alarm systems, and multiple self-tests to ensure proper function before and during use. Overall, even though the front face is more mechanical and not a newer touch screen system, it was considered reliable for long-term ventilation patients.

Compared to other ventilators, the Puritan Bennett 700 Series is often a forerunner to more advanced models like the Puritan Bennett 840 or 980. These models contain improved user interfaces, increased monitoring qualities, and more ventilation modes. Modern companies today that are more commonly used are Hamilton and Drager, which are typically lighter, smaller, and more software-driven. In contrast, the 700 series represents a traditional approach to mechanical ventilation. It is larger, heavier, and manually operated, but still effective for delivering respiratory support for critical care environments.

The Puritan Bennett 700 Series ventilator features a flat vertical front panel filled with knobs, switches, and small display windows, ports and tubing connections on the sides and back. On the exterior, it has a rigid metal casing and squared edges, with a mounted cart. This gives it an industrial look that sets it apart from lightweight, compact ventilators today.

• Weight (ventilator only): 30 kg (66 lb)
• Weight (cart only): 18 kg (40 lb)
• External battery: 12.75 kg (28lb)
• Dimensions (ventilator only): 378 mm high x 515 mm wide x 370 mm deep
• Dimensions (ventilator and cart): 1255 mm high x 515 mm wide x 370 mm deep
• Temperature (operating): 5 to 45 C at 10 to 95% relative humidity
• Temperature (storage): -40 to 60 C at 10 to 95% relative humidity
• Atmospheric pressure (operating): 8.7 to 16.0 psi (600 to 1100 hPa)
• Atmospheric pressure ((storage): 7.3 to 16.0 psi (500 to 1100 hPa)

Ventilator Systems Service Manual by Covidien

Ventilator Systems Operators Manual by Puritan Bennett

Learning about ventilators by UF Health

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