PRIMED INSTRUMENTS INC.

It is important to understand the difference between the SuperDART® and other squeegee type brushes. We incorporate three stage cleaning: Leading Brush, Squeegee Wiper and Tail Brush.

The Tail Brush at the end of the device is very important and differentializes our product from others. This brush scrubs off the debris from any scratches, dents, imperfections in the channel after the squeegee pass. Squeegees can not remove the bioburden from these imperfections (in fact the squeegees push the debris into these imperfections). The tail brush also removes any biofilm left by the squeegees in the channels.

Our competitors show flashy promotional videos of other squeegee-type devices where they "clean" a tube filled with red colored liquid. After two passes, the tube is squeaky clean with no visible red dyed liquid. These videos are misleading; all channels have scratches, dents, seams and other imperfections. Brand new perfectly smooth tubes were used for these videos. If this was a real channel the red liquid would have stayed in these imperfections.

The Squeegee Wiper in our device is securely attached onto a pair of the twisted wires which is part of the Tail Brush*. This provides for much greater flexibility of the squeegee element vs other products where the squeegee is placed on the stiff catheter tubes.

Flexibility is important for pulling the device through any bends in the scopes’ channels.

There are three important SuperDART® instructional notes for the users:

• Aways use WET with a detergent/enzymatic solution - scope and the brush. NEVER use dry.
• Only use for specified channels sizes
• SuperDART® is a PULL THOUGH device. Always push the Leading Brush First (with white bullet) through the channel until it appears on its opposite end. Next, Pull Through the Squeegee Wiper and the Tail Brush through the channel to complete the process.

NEVER try to push the squeegee and tail brush section of the device into a channel.

*Patents pending