CWE Inc. offers a broad range of instruments for the physiology and pre-clinical research laboratory. We specialize in respiratory support and monitoring, including small animal ventilators, gas analyzers, and related equipment. Physiological monitoring includes direct blood pressure, single and multi-channel preamplifier systems, homeothermic temperature controllers, and the most advanced programmable stimulators available.
The SAR-1000 Small Animal Ventilator
Create your own gas
Create your own gas blends
This three-input gas mixer can provide any mix of gasses
for hypoxic studies or whenever custom concentrations
CO2 Monitor for mice
The microCapStar End-Tidal Carbon Dioxide Analyzer provides accurate end-tidal or continuous measurement of expired CO2 in animals as small as mice. It features very low sample flow (5-20 ml/min, adjustable), fast response time, and excellent stability. Respiratory rate (RR) is computed using the excursions of the CO2 waveform. The CO2 and RR measurements, as well as a trend plot of the end-tidal values, are displayed on the graphics LCD screen. New internal software allows user-adjustable ETCO2 and RR averaging, as well as higher resolution measurement.
End-tidal CO2 is well known as an important indicator of respiratory status. The microCapStar extends this important measurement to the smallest animals.
Blood Pressure Monitor for small animals
The BP-100 Blood Pressure Monitor is an accurate, easy-to-use instrument for measuring direct blood pressure (BP) from small animals. It is designed to operate using standard, widely available clinical-type BP transducers (included with unit). In addition, miniature catheter-tip transducers are available for high-resolution intra-arterial BP measurements. The standard systolic, diastolic, and mean pressures are reported, along with heart rate (HR).The BP-100 features automated operation, including push-button transducer zeroing. High and low-pressure alarms are user-adjustable. A serial data output is provided for remote data collection. Analog voltage outputs for fast (continuous signal), systolic, diastolic, and HR are compatible with data acquisition systems. All computed measurements are updated every 2.5 seconds. A special fast mode can be selected, where the display is rapidly updated. This mode allows the BP-100 to be used as a general-purpose transducer amplifier for recording signals other than arterial BP.
Respiratory Oxygen Monitor
MRI Compatible Ventilator System
The MRI-1 Ventilator is a small animal ventilator specifically designed for use in MRI environments. This volume-cycled ventilator for rodents (including mice) uses miniature, non-magnetic pneumatic valves that can be placed close to, or inside, the bore of the magnet. It features direct setting and readout of breaths/min, tidal volume, and other parameters for easy setup and monitoring. A serial data output is standard. Download a complete data sheet by clicking here.
We now offer a complete range of valves for larger animals up to monkeys and pigs. Customized packages are available for the injection of hyperpolarized noble gasses for specialized imaging applications.
Small Animal Ventilators
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