Plantar Test

The Plantar Test Instrument (Hargreave’s Method) measures response to infrared heat stimulus, applied to the plantar surface.

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The Plantar Test Instrument (Hargreave’s Method) measures response to infrared heat stimulus, applied to the plantar surface.

Our Plantar Test is the original apparatus, designed in close cooperation with Prof. Ken Hargreaves, who devised the method.

Focus the infrared source below the Plantar surface and with the press of a button … latency to paw withdrawal and infrared intensity are recorded automatically ( manual scoring, as in other models available on the market!).

The Plantar Test represents a remarkable advance in methodology, as it combines the best features of all other methods of measuring pain sensitivity. Unique to the Plantar Test, the animal is unrestrained during experiments. Unlike other models available on the market, time latency is recorded automatically by a fiber optic sensor, without having to rely on the experimenter observation of the animal behaviour, thus avoiding unwanted experimental bias.

The Plantar Test basically consists of a movable I.R. (infrared) generator placed below a glass pane upon which the operator deposits the rat, see picture. A Perspex enclosure defines the space within which the animal is unrestrained. It is divided in three compartments, which help the operator to carry out a rapid “screening” work: up to 12 animals can be tested with no appreciable delay in between.

Proprietary to our model is a specific filter, cutting off the visible part of the light spectrum, which would disturb the animal on test and provide an unwanted clue. A feedback circuit detects false starts. Data appear on the front panel and may be exported to a USB pen-drive, or to the PC via USB; both USB pen-drive and software are included in the standard package.

Data can be printed out on the optional panel-mount printer, or external MiniPrinter

Automatic detection of paw withdrawal via fiber-optic detectionNo visual score needed! No mistakes, precise measurement
Function keys on the controller unitto adjust I.R. intensity in the interval 01-99
CUB Software includedfor direct connection to the PC, when required
USB Flash drive includedfor easy data portability
Modular Animal Enclosurefrom 3 to 12 spaces, conveniently designed to restrain mice or rats
Optional I.R. Flux Radiometer for calibrationto guarantee the same emission in different machines, and after years of use
Power RequirementUniversal mains 85-264 VAC, 50-60Hz
Commandsvia soft-buttons
Read-outon multifunction graphic display
Print-outvia optional thermal MiniPrinter or panel-mount printer
Startingvia keys on the I.R. Vessel and on the Controller
I.R. Intensityadjustable in the interval 01-99 (in one digit steps)
Latency Timedisplayed on the graphic display, in 0.1s steps
Connection to PCvia USB cable
Data Portabilityvia USB flash drive provided
Calibrationvia appropriate I.R. Radiometer (optional)
Operating Temperature10° to 40° C
Sound Levelnegligible
Dimensions86 x 40 x 35 cm (assembled)
Weight 13.00 Kg13Kg
Shipping Weight27.50Kg approx.
Warranty17400 is covered by 24-month warranty

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The Plantar Test Instrument (Hargreave’s Method) measures response to infrared heat stimulus, applied to the plantar surface.

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