Olympus U-GAN Instructions Manual

INSTRUCTIONS

GOUT ANALYZER

U-GAN

AX9888

This analyzer employs a UIS (Universal Infinity System) optical design. By attaching the analyzer in a slider-compatible
revolving nosepiece, gout examination can be performed by operating the lever.
Applicable revolving nosepieces: U-D6RE, U-D7RE, U-D6REM, U-D5BDRE, U-D5BDREM, U-P4RE, U-P6RE

1

External View

-plate rotation lever

With built-in analyzer and -plate (sensitive color plate)

2

Installation

Clamping knob

Slider-compatible revolving nosepiece

Gout analyzer
U-GAN

1. Loosen the clamping knob on the
revolving nosepiece and remove the
inserted slider or dummy slider.

2. Hold the U-GAN gout analyzer with
the labeled surface up, insert it all
the way, and tighten the clamping
knob.

3. Engage the U-POT polarizer or a po­larizer with built-in condenser in the
light path.

This publication is printed on recycled paper.

Printed in Germany

3

Gout Examination Procedure

Slider insertion direction

1. Engage the 40X objective in the light path.

2. If the condenser in use is equipped with a top lens, engage it
in the light path.

3. Set the

-plate rotation lever of the U-GAN to the center posi­tion ( · ). Look into the eyepiece and rotate the polarizer to the
darkest position.

4. Rotate the stage or specimen so that the longitudinal direction
of the crystals is in parallel with the -axis @.
At this time, the -axis direction of the

-plate should be iden-

tical to the longitudinal direction of crystals.

5. Rotate the

-plate rotation lever of the U-GAN fully counter-

clockwise (

) and diagnose the gout.

Crystals are yellow Sodium urate (Gout crystal)
Crystals are blue Potassium pyrophosphate (Pseudogout crystal)

6. Rotate the -plate rotation lever of the U-GAN fully clock­wise ( ) so that the longitudinal direction of crystal is
perpendicular to the -axis ². The examination result can be
confirmed by referring to the reversal of the color.

4

Other Observations

Brightfield Observation

Loosen the clamping knob of the revolving nosepiece clamping the U-GAN, pull out the U-GAN and stop at a click
position. (Tighten the clamping knob there.)
Now the -plate is disengaged from the light path so brightfield observation is available.

Other

Set the

-plate rotation lever of the U-GAN to the center position ( · ) for simple polarized light observation. However, the

contrast of the observed image may be poor because of the presence of the

-plate.

Crystal

(Perpendicular to -axis ²)

(Parallel with -axis @)