What is the function of the rubber “O” ring?

The function of the “O” ring is to create an “organic” tension to the activation screw head so the patient does not turn the head with their tongue. If this “O” ring is hit with the soldering gun during fabrication, it may be compromised and should be replaced.

Will the VECS creep-back on itself after activation?

It is virtually impossible for the VECS to creep back on itself after activation. The gear inside the housing is a worm-gear, similar to the concept of the axle of a car. The pressure is not great enough to creep back on this device.

Which way do I turn the key to activate?

The key is designed with a target symbol on 1 side and blank on the other. By pushing on the side of the key with the target symbol, this ensures the device is being activated the proper direction.


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