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Analgesia
NEW Dynamic Plantar Anesthesiometer
The Dynamic Plantar Aesthesiometer has been designed to automate the assessment of “touch sensitivity” on the plantar surface of rats or mice and comes ready to work with both Mice and Rats. It is known by some as the Electronic Von Frey or Plantar Von Frey instrument, but differently from Von Frey devices, Latency time, and Actual Force at the time of paw withdrawal reflex are automatically detected and recorded. The Dynamic Plantar Anesthesiometer consists of a movable force-actuator below a network platform upon which the operator deposits the rodent. A Perspex enclosure renders the animal unrestrained for the duration of the experiment.
key features
Analgesia • Dynamic Plantar Anesthesiometer
} Automatic detection of paw withdrawal (no visual
score needed!) (force ramp)
} Consistent application of force at an adjustable rate } Software included as standard } Data portability via the included memory key } NEW: orofacial stimulation by optional holders
The operator places the actuator beneath the paw (proper placement ensured via an angled mirror) and the actuator confers a use-defined force on a Von Frey-type filament. The filament exerts an increasing force to the plantar surface, starting below the threshold of detection and increasing until the animal removes its paw. At the retraction reflex movement when the paw is withdrawn, the registers and displays the actual force at which paw withdrawal occurred.
Specifications
force range force increasing rate filament travel Latency time connection to Pc 0 to 50.0 grams, in 0.5g steps adjustable in the interval 1 to 20 seconds, in 1 s steps 12 mm on graphic display, in 0.1s steps through DeLta 9-pin connector
Ordering Information
Order # 72-6704 Model 37450 Product Dynamic Plantar Anesthesiometer
46
www.coulbourn.com
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www.panlab.com
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