Von Frey analgesiometer BIO-EVF5

for animal researchfor preclinical researchfor rats

As an electronic version of the classical Von Frey Filaments esthesiometer (or aesthesiometer), the latest evolution of Bioseb's Electronic Von Frey instrument for determining the mechanical sensitivity threshold in rodents (rats and mice) is a must-have instrument for your reseach on hyperalgesia and allodynia. By measuring and recording the force at which the animal exhibits a paw withdrawal reflex, pathologies related to sensory response and hyper- or hypo-aesthesia can be studied. The EVF5 includes an embedded camera inside the stimulator handle and a new, dedicated software revolutionizing the experimental process. Presentation 16 years after the creation of our first Electronic Von Frey instrument, Bioseb is revolutionizing this standard test for determining the mechanical sensitivity threshold in rodents (rats and mice). A well-known issue with classical Electronic Von Frey instruments is the necessity for the operator to bend into an uncomfortable posture in order to stimulate under the rodents' paws. Despite using more ergonomic workplace configurations (lower seats and elevated desks), the operation can remain strenuous or even painful for the operator when repeated over large cohorts of animals. In order to solve this issue, we embedded a camera inside the stimulator handle, which allows you to record and display video directly from underneath the paws. In conjunction with our dedicated software, this innovation allowed us to re-think the position of the operator during the test. When used on a tablet or touch-screen, the EVF5 software allows operators to visualize the video stream in real time without having to bend over.