MRI-1 Ventilator images
Designed for use in MRI and sensitive electrophysiology recording situations
The MRI-1 ventilator is a small animal ventilator designed for use in MRI and other high magnetic field environments. The non-electrical nature of the ventilation valves allows this unit to be particularly well suited to sensitive electrophysiology recording situations.
It consists of a microprocessor-based control unit and a set of remote, pneumatically operated, non-metallic valves. It can operate by itself or be contolled and/or monitored by a computer.
The MRI-1 is a volume-cycled ventilator only. It does not measure airway pressure or use pressure to control ventilation. It operates on the flow-time principle: an inspiratory airflow is established and gated into the animal for a set time, thus producing a known volume. This solution provides extraordinary flexibility: a wide range of volumes, breaths-per-minute, and I/E ratios are possible with no hardware changes, and using just 3 front-panel controls. Respiratory airflow is provided by an internal airpump or an external pressurized gas source (oxygen or anesthetic gas).
