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Stereotaxic U-Frame

The World Precision Instruments U-frame Stereotaxic Frames are designed for use with rats and small animals. Ideal for researchers in need of a versatile, reliable instrument for stereotaxic procedures with small animals. These stereotaxic frames are built around the time-proven U-frame design concept, providing stability and adaptability to most species. Precision alignment ensures accurate placement of electrodes, micropipettes and other devices.

 Stereotaxic Frame Instruction Manual

Features & Benefits

• 5 mm linear movement per revolution on each axis
• Absolute lock at 90º (vertical)
• Entire frame is electrically continuous, ideal for electrophysiology
• Accuracy of non-digital models is 100 μm, and the accuracy of digital models is 10 μm
• Double-lead screw design, more stable and accurate operation
• Laser engraved scales enable comfortable reading
• The precisely-designed rotary knob and U frame allow sufficient space for the anterior-posterior operation
• Accessories available for wide variety of small animals

Applications

• Mice and neonatal rat surgery
• Electrophysiology applications

Overview

WPI’s Rat Stereotaxic Instrument is built around the time-proven U-frame design concept, providing stability and adaptability to most species. Precision alignment ensures accurate placement of electrodes, micropipettes and other devices. It is ideal for researchers in need of a versatile, reliable instrument for stereotaxic procedures with small animals. 

The manipulator arm controls mediolateral 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 movement, with 80 mm of travel possible in each direction. A universal joint allows the investigator to change the angle of the probe up to 90° in either the anteroposterior or mediolateral planes. The locking mechanism will hold any angle position without drift or creep. It also provides an absolute lock at 90° vertical. 

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. 

The entire stereotaxic frame, including the dovetails, manipulator arms and base are electrically continuous. Grounding of the entire frame including the base plate can be accomplished 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. 

Digital Stereotaxic versions features sealed electronic sensors and an easy-to-read LCD display with 10-micron resolution in all three axes. A zeroing function aids in targeting specific coordinates. The battery-powered display is electronically quiet, making it useful in electrophysiology experiments as well as keeping the workbench tidy.

Specifications

• Base plate size : 400 mm x 255 mm
• Accuracy of non-digital models is 100 μm, and the accuracy of digital models is 10 μm.
• Working distance in 3 dimension is 80 mm with precise alignment to 0.1 mm resolution for non-digital models and 0.01 mm for digital models
• Vertical direction: 180° rotation and lock at any angles
• Horizontal direction: 360° rotation and lock at any angles
• Dual-lead screws ensure stable, accurate and smooth manipulation
• Curved nose clamp design secures the head of animals
• Ear bars with laser engraved scales (1mm resolution)

 

Arms	Movement	Digital	Type	Ear bars	Part
Single	Manual	No	Standard (Vernier Scale) 100 microns (0.1 mm) Resolution	Standard	502600
				Non-rupture	502650
		Yes	Standard (Vernier Scale) 10 microns (0.01 mm) Resolution	Standard	502300
				Non-rupture	502350
Dual	Manual	No	Standard (Vernier Scale) 100 microns (0.1 mm) Resolution	Standard	502603
				Non-rupture	502653
		Yes	Standard (Vernier Scale) 10 microns (0.01 mm) Resolution	Standard	502303
				Non-rupture	502353

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