Stoelting™ Touch Test Sensory Probes - Replacement Evaluators

Semmes-Weinstein monofilaments provide an approximate logarithmic scale of actual force, and a linear scale of perceived intensity. They have a long history of effective use in clinical settings, and can be used to diagnose pathologies of hyper- or hypo-aesthesia. Subsets within the set of 20 probes distinguish pathologies on different parts of the body (foot, hand, lip, cheek,etc.).

Catalog Number	Mfr. No.	Model
10-000-251	Stoelting™ 58021	Replacement Evaluator 1.65
10-000-252	Stoelting™ 58022	Replacement Evaluator 2.36
10-000-253	Stoelting™ 58023	Replacement Evaluator 2.44
10-000-254	Stoelting™ 58024	Replacement Evaluator 2.83
10-000-255	Stoelting™ 58025	Replacement Evaluator 3.22
10-000-256	Stoelting™ 58026	Replacement Evaluator 3.61
10-000-257	Stoelting™ 58027	Replacement Evaluator 3.84
10-000-258	Stoelting™ 58028	Replacement Evaluator 4.08
10-000-259	Stoelting™ 58029	Replacement Evaluator 4.17
10-000-260	Stoelting™ 58030	Replacement Evaluator 4.31
10-000-261	Stoelting™ 58031	Replacement Evaluator 4.56
10-000-262	Stoelting™ 58032	Replacement Evaluator 4.74
10-000-263	Stoelting™ 58033	Replacement Evaluator 4.93
10-000-264	Stoelting™ 58034	Replacement Evaluator 5.07
10-000-265	Stoelting™ 58035	Replacement Evaluator 5.18
10-000-266	Stoelting™ 58036	Replacement Evaluator 5.46
10-000-267	Stoelting™ 58037	Replacement Evaluator 5.88
10-000-268	Stoelting™ 58038	Replacement Evaluator 6.10
10-000-269	Stoelting™ 58039	Replacement Evaluator 6.45
10-000-270	Stoelting™ 58040	Replacement Evaluator 6.65

Description

• Set of 20 monofilaments based on the Semmes-Weinstein monofilament set
• Features retractable filaments to protect the filament
• Allows the researcher to carry a few in a pocket

Operating Principle

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. This makes it possible for the researcher using a hand-held probe to apply a reproducible force, within a wide tolerance, to the skin surface.

Pre-Clinical Use
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. The animal indicates sensation by pulling back its paw. Individual filaments available.

Specifications

• For Use With (Application): Neuroscience