Versatility of Positioning
The manipulator arm controls medio-lateral and vertical positioning via lead screws with 80 mm
of travel. This allows the fastest positioning possible, consistent with lining up the scales easily at a given coordinate. The anteroposterior movement is controlled via a dovetail slide ovement, with 80 mm of travel possible in each direction. A universal joint allows the investigator to hange the angle of the probe up to 90° in either the antero-posterior or medio-lateral planes. The locking mechanismwill hold any angle position without drift or creep. It also provides an absolute lock at 90° vertical.
Easily Read Scales
All scales are oriented to be read easily from the open end of the “U”. This is the position from which most scientists prefer to work. The numerals on the scales are clear and easy to read. Precise alignment with facing vernier scales gives accurate resolution to 0.1 mm. Vernier scales can also be augmented with a digital LCD position readout similar to a digital Vernier caliper. This option extends the readable resolution to 10 microns.
Covenient for Electrophysiology
The entire Stereotaxic frame including the dovetails, manipulator arms and base are electrically continuous. Grounding of the entire frame including the base plate can beaccomplished by connecting the provided grounding stud to earth. This is ideal for electrophysiological studies where the animal and surrounding structures need to be grounded to reduce electrical noise.
Dual Manipulator Model
The 502603 Dual Manipulator has 3-dimensional manipulator arms on both sides. The second manipulator arm can be installed at time of order or added later by the user. Dual manipulators are very useful in studies in which double injections or simultaneous stimulation and recording are necessary.
Included Components
Both the 502600 and 502603 include the Uframe base plate, manipulator arm(s), standard probe holder(s) with corner clamp, and Rat Adaptor (nose clamp assembly and 18° taper ear bars). The 502650 and 502653 include non-puncture 45° ear bars instead of 18° ear
bars.
Selection of Accessories
Species adaptors are available to fit rat, cat/ monkey, mouse, guinea pig and small bird. Probe holders and species adaptors for “U” frame stereotaxic instruments from other manufacturers are generally compatible with the WPI’s stereotaxic frame.