
- Active actuator
- Strap and buckle to react the force during the test
- Placement boot. for LA this is a modified brushing boot
- Dummy actuator and placement boot for the contra-lateral limb
ThisĀ is the large animal version with a working stroke of the actuator is 20mm, making it suitable for most limb sites (the tendon sheath on the hind limb of a cow is the most taxing environment we’ve found so far).
Connection to the actuator is through our own ‘donut’ design. This push-on ring with the pneumatic line built-in is self sealing and releases automatically without damage if the subject becomes over-excited.

The smallest size was designed for use on the leg of a chicken and is also suitable for the tail of a rat. Seen here with three 1.5mm ball tips, this actuator is more commonly used with a single 1mm pin. Its force range is 10N and it weighs just 7 grams.
The cat here is wearing the limb actuator, but with the pressure line disconnected between tests. (She’s also wearing our remote controlled thermal threshold testing system, allowing the two modalities to be measured alternately). On the left is the small animal version, suitable for sheep and dogs. The curved lilac piece is removable and may be adjusted to suit the curvature of the limb under test. They are suitable for sterilisation by wiping with alcohol and contain limits stops to prevent accidental over-travel. All the actuators are suitable for use with our bench mounted and wireless mechanical threshold testing systems as well as with the Prodpro algometer.
