The Plantar test instrument follows the principles of the Hargreaves Method for testing the efficacy of anti-inflammatory and pain relief medications
This instrument is used for testing the efficacy of anti-inflammatory and pain relief medications as well as measuring some neurological side effects in other medications.
The Plantar test instrument follows the principles of the Hargreaves Method.
A moveable infrared stimulator is positioned under the glabrous surface of the paw.
The push of a button starts an infrared beam, focused upwards.
As the rat senses heat, it will withdraw its paw, and a reflexive fibre optic photo sensor turns off the infrared stimulus.
A counter measures latency to paw withdrawal which is reported to the nearest 0.1 second.
Models for testing rats and mice are available.
