MRI-1 Ventilator
The MRI-1 Ventilator is a small animal ventilator designed for use in MRI and other high magnetic field environments. The system comprises a microprocessor-based control unit and a set of remote, pneumatically operated, non-metallic valves. The MRI-1 can operate by itself or can be controlled and/or monitored by a computer.
The MRI-1 operates on the flow-time principle: an inspiratory airflow is established and gated into the animal for a known time, thus producing a known volume. This approach provides extraordinary flexibility — a wide range of volumes, breaths-per-minute, and I/E ratios are possible with no hardware changes, and using just three front-panel controls.
Respiratory airflow is provided by an internal airpump. Alternatively, an external pressurized gas source can be attached (oxygen or anesthetic gasses). The remote high-speed, miniature pneumatic valves do the actual airflow switching. By locating these valves close to the animal (including inside the magnet bore if necessary), dead-space and tubing compliance are minimized.
MRI-1 Ventilator
- MRI compatible ventilator
- Non-magnetic pneumatic valves (XS, S, & M sized valves available depending on weight of animal)
- Dependable all-electronic ventilator
- Wide tidal volume and rate range
- Mice to Monkeys (up to 10kg with appropriate valve & accessories)
- Safe with oxygen and anesthesia
- Direct readout of volume and rate
- Easy to set up
Technical Specifications ;
- Respiratory rate range: 5 – 200 breaths/min
- Inspiratory flow range: 60 – 1000ml/min
- Inspiration/Expiration (I/E ratio) range: 20 – 80%
- Tidal volume range: 0.1 – 30ml
- Manual control functions: HOLD (suspends inspiration), MAN (manual inflation)
- LCD panel: 4 lines x 20 chars, backlit
- Indicator lights: INSPIRATION, LOW PRES WARNING, ERROR
- Internal airpump capacity: 4 lpm
- Pneumatic valve switching speed (air actuation): < 75mS
- Pneumatic valve switching speed (Helium actuation): < 55mS
- Pneumatic valve actuation pressure: 3 – 5 bar
- Pneumatic valve flow orifices: 0.080 in. (2.0mm)
- Pneumatic valve materials: PTFE body, non-metallic fasteners, one non-ferrous coil spring
- Dimensions, main unit: 9W x 5.5H x 9D in. (23 x 14 x 23cm)
- Dimensions, pneumatic valve (each, of two): 1.0 dia x 1.8 long, in. (47 x 25mm)
- Port connections, respiratory and pressure functions: 0.125″ (3mm) ID Tygon tubing
- SYNC OUT connector: BNC
- Data Port connector: DB-25S
- Power requirements: 120/240V (switchable), 100VA
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