Plethysmometer Test for Mice and Rats

Details

The Plethysmometer (Paw Edema) test serves to measure the effectiveness of anti-inflammatory agents to reduce edemic conditions. In use, the paw is inserted into water, contained in a special water cell of which the resistance is changed due to the immersion of the animals paw. This resistance change is calibrated in ml and shown on the electronic monitor.

This form of detection eliminates changes due to conductivity alterations at repeated insertions (found on comparable Plethysmometer units.) The measurments are shown on the units LCD readout in .1 ml for rats and .01 ml for mice increments. T Safely operated either on its own battery or on a line adapter at 9 or 12 V supplied.

The IITC paw volume meter is superb when compared to other units on the market due to:

1. There is no meniscus problem, which affects measurement
2. Measures resistance not displacement
3. Measures pressure to volume not electrical resitance of wire to volume.
4. No wetting solutions (special gels) required with the IITC system, gels are needed with other systems to reduce the meniscus of the liquid that naturally adheres to the wire. Amount must be exact in order for other systems to function properly. The gel changes the denisty of the water which creates an issue with the measurements.

• No wetting solution needed
• One calibration/yr.
• Battery operated
• RS232 Standard

An angled acrylic stand serves to keep the instrument in position for easy viewing. The test cell is supplied on an acrylic stand of its own. The fact that there is no wetting solution required is a first for this type of unit. The unit also allows for obstruction free viewing of the test subject with free access to the cell.