Crossover™ Manual V1/62920016 ©Fabtech Systems LLC. All Rights Reserved.
Tendons
The tendon system is the heart of the Crossover™ knee, offering a highly var-
iable and infinitely tunable resistance and return mechanism. This relatively
linear spring rate of tendons and X/CAM™ system delivers a smooth, even
energy absorption and return. This patented tendon and X/CAM™ system is
what makes it possible for the user to get extension/resistance moments that
provide the needed assistance to enable exiting and absorbing the extreme
flexion moments associated with sport activities.
This system is comprised of four primary components: tendons, tendon
connectors, three (3) position X/CAM™ guide wheels, and lower tendon
connector.
Only one tendon durometer is needed with the Crossover™ knee.
One OR two tendons may be used at a time.
The primary goal in setting selections is to find the winning combination
that provides the optimal flexion resistance and extension assistance that
will balance forces like a natural leg for the activity the user is doing. The
idea is:
“helping, but not hindering.”
Upper Tendon Connectors
The carbon tendon connectors form the proximal connection between the
socket and the tendon system. These connectors form the pocket that the flat-
tened ball end of the tendon slips into.
They are connected with removable hardware or they can be bonded to
the socket.
Optimal location is between 5” to 9” proximal of knee center.
Ensure the tendon has a clear path on the socket to the tendon guide
wheel.
How the Systems Work Together
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