Electronic Von Frey
The electronic model of Von Frey filament combines ease of use and rapidity for the determination of the mechanical sensitivity threshold in rodent.
Description
The Von Frey filament is applied against the central edge of the animal hind paw. Paw withdrawal caused by the stimulation is registered as a response. The corresponding force applied is recorded by the system and displayed on the large backlighted screen of the Von Frey unit with a resolution of 0.1 grams. A different tip is used for rat (hard plastic tip) and mice (elastic spring tip).
The Electronic Von Frey EVF4 and EVF5 are equipped with batteries. It allows performing measurement for several hours without connection to power supply.
Differently to the procedure using classical Von-Frey filaments, the threshold value can be obtained in only one test, and in a highly reproducible manner. The electronic instrument does not present any temperature or hygrometry drift, which used to be an issue with the manual version of the filaments.
New Electronic Von Frey 4 with wireless connection: EVF-WRS
The Electronic Von Frey EVF-WRS is provided with the same comfortable handle as EVF4, but it is now provided with wireless communication.
The BIO-CIS2 software can be used to automatically record the results on a PC (direct Excel exportation). The BIO-CIS2 software can also be used for increasing the repeatability of nociceptive tests: while recording the reflex respond the software help the operator to improve his skills with the instrument, as well as to invalidate off-limit results. And you can import all data from a wide range of instruments directly into Excel for further analysis!
Two packages are available: EVF-WRS (without software) and EVF-WRSS (including the software).
Component included
- Control unit
- Stimulus handle
- Hard (10 units) and soft (1 unit) tips for rat and mouse
- Dusk protection disk
- Footswitch
- Storage casing
- BIO-CIS2 Software (only included in 761616 EVF-WRSS)
Stand and enclosure have to be purchased separately.
Electronic Von Frey 5
The Electronic Von Frey EVF5 version provides an embedded camera mounted on the handle in order to make easier the visualization of the point of stimulation.
The BIOEVF software comes with the following last highlighted features :
- Video with target pointer: No more stretching to target the paw
- Real-time curve display: immediate display of applied force, which helps for replicable measures
- Value assignation to each animal's paw: Special feature for touch screen PC ! Validation in 1 touch (or 1 click)
Two packages are available: EVF5 and EVF5Tablet
Component included
- Control unit
- Stimulus handle mounted with a camera
- Hard (10 disposable measurement tips of 0.5 mm diameter) and soft (1 spring tip for thresholds of 0-10 grams) tips for rat and mouse
- Footswitch for hand-free resetting of the test
- Storage casing
- BIOEVF Software
- Tablet (only included in 750978 EVF5-TABLET)
Stand and enclosure have to be purchased separately.