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CWE Instruments for physiology and respiration (USA)

 

Respiratory Gas Analyzers

The monitoring of expired gas has long been known to be an important indicator or the physiological health of experimental animals. CWE offers a range of gas analyzers for different respiratory physiology applications. For routine monitoring of CO2, the CapStar-100 End-Tidal CO2 Analyzer is our most popular instrument. The new  microCapStar is specifically designed for mice and other very small animals. The GEMINI Respiratory Monitor features both CO2 and O2, as well as respiratory rate measurement. 

Carbon dioxide monitors:
    CapStar-100 End-Tidal CO2 Analyzer
    CapStar-100 CO2 Analyzer (click for more data)

    microCapStar CO2 Analyzer for Mice

microCapStar CO2 analyzer (click for more data)

 

Oxygen monitors:
   
new_big.gif (434 bytes) OxyStar-100 O2 Analyzer

 

Dual gas analyzers:
    GEMINI Respiratory Monitor

GEMINI O2 and CO2 monitor (click for more data)

MM-100 Metabolic Monitor System

MM-100 Metabolic Monitor system (click for more data)

Small Animal Ventilators

CWE, Inc. has pioneered many innovations in the area of small animal ventilation. These range from the basic SAR-830 Series of volume and/or pressure-cycled models for routine maintenance of small animals, to computer-controlled models for specialized applications. 

All CWE ventilators operate on the flow-time principle. This method uses a constant flow of gas, which is gated into the animal for a known time, thus producing a known volume (flow x time = volume). This simple but powerful approach gives great flexibility in setting ventilation parameters such as inspiration time, I/E ratio, and more; something that is difficult or impossible to accomplish with the older mechanical piston-pump technology. In addition, this contributes to the legendary reliability and long service life of our ventilators, since the only moving parts are a pair of long-life solenoid valves. 

SAR-830 Series Small Animal Ventilators:

SAR-830/AP Ventilator (click picture for info) These are our most popular models, and provide reliable and safe ventilation of rodent-size animals. Inhalational anesthesia (Halothane or Isoflurane) is available for all models. Economical multi-animal setups are made easy by adding external valve assemblies. All models feature a built-in computer control interface for remotely-controlled applications. (Model SAR-830/AP shown at left)


Specialized Ventilators:

MR-compatible ventilators

MRI-1 Volume Ventilator (click picture for info) This unique series is designed for use in high magnetic field imaging applications. The MRI-1 Volume Ventilator uses remote, non-magnetic, pneumatic valves for controlling the animal's airflow. Pneumatic valve sets are available for animals ranging from mice to pigs. Anesthesia is available as an option.
 

Anesthesia for above ventilators:

Anesthesia setups (click picture for pdf data sheet) CWE offers complete Isoflurane and Halothane anesthesia kits for all of our ventilators. A simple system consists of an external flowmeter and vaporizer. Complete rebreathing systems with stands are also availabl

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Mouse products

Working with mice and mouse-sized animals is a challenge. Although mice operate on the same principles as larger animals, monitoring physiological variables, or just keeping them healthy during experimental procedures requires more than just scaling down the equipment.

Here you will find a collection of hard-to-find instruments and related products that are specifically designed to meet that challenge!


  MicroCapStar End-Tidal CO2 Monitor  
Fast-response, low sample flow end-tidal CO2 analyzer for mice.

MicroCapStar CO2 analyzer (click for data) Innovative fast-response CO2 analyzer uses digitally-controlled sample technique for ultra-low sample flow.

Small sample flow (5 - 20 ml/min)
Measures respiratory rate (RR)
Adjustable CO2 alarms


  Mouse Ventilator  
Mouse kit for popular SAR-830 ventilator..

SAR-830/AP with Mouse Kit Mouse Kit (Part No. 12-01020) is easily installed on any SAR-830 series Small Animal Ventilator. This provides a small-range flowmeter and special tubing set for mouse-size animals. The flowmeter connects directly to front-panel ports, or can be permanently installed in the instrument for "mouse-only" ventilation.

Accurate tidal volumes down to 100ul
Easily installed on existing SAR-830 ventilators
Special low-volume tubing set


 Mouse Temperature Controller  
Precise homeothermic controller for mice.

TC-1000 Temperature Controller with mouse components Mouse temperature controller (Part No. 08-13000) features precise control of body temperature. Includes small flexible heating pad and special 1mm thermistor probe.

Accurate temperature control over 25-45 degC
Zero-artifact, low-voltage DC power
Adjustable over/under temperature alarm

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