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Von Frey Hairs with Grid

Ugo Basile 37450/277 - Von Frey Hairs (with grid)

A kit of 20 nylon monofilaments, widely known as Von Frey filaments or Semmes-Weinstein monofilaments. Used for evaluating cutaneous sensation levels. One of the most popular non-invasive techniques used.
Code
37450/277

Ugo Basile 37450/277 - Von Frey Hairs (with grid)

A kit of 20 nylon monofilaments, widely known as Von Frey filaments or Semmes-Weinstein monofilaments.  Used for evaluating cutaneous sensation levels. One of the most popular non-invasive techniques used.

 Individually calibrated to deliver a target force, from 0.008 grams to 300 grams.  
 
When the tip of a fiber of given length and diameter is pressed against the skin at right angles, the force of application increases as long as the researcher continues to advance the probe, until the fiber bends. After the fiber bends, continued advance creates more bend, but not more force of application.
 
Rodents exhibit a paw withdrawal reflex when the paw is unexpectedly touched. The Touch Test™ Sensory Evaluator can be used on the Plantar surfaces of the foot of a rat or mouse, and the animal will indicate sensation by pulling back its paw.
 
Also Available:  Perforated metal platform, laser-cut perforations form a mesh-like open grid of square holes ~5X5  mm.  Intervening metal grid is approximately 1mm wide, comfortable to the animal and easy to view the target area of the paw.  The platform is coated with a polymer resin that is easy to clean and which will not be spoiled by fluids or waste materials.

See Also: - Aesthesio Sensory Evaluators