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• Proximal Adapter Pinch Bolt (Fig. 1E): Please refer to the respective
proximal adapter's instructions for use.
• Tube Clamp Screw (Fig. 5A): 15 Nm
Bumper Selection (Fig. 6,7)
The selection of a bumper determines the amount of stance flexion.
1. Carefully insert a flat head screwdriver or a similar flat tool under the
bottom of the Bumper Cover (7C) and remove it (Fig. 6).
2. Remove the Bumper (7A) by inserting a small and flat hand tool
underneath it and lift upwards. Leave the underlying Shim (7B) in
place.
3. Select a Bumper to install based on which Total Knee device is being
used, and on the patient's weight:
Weight kg
35–50
50–70
70–90
90–100
4. Re-install the Bumper Cover (7C) by hooking the groove under the
chassis front and pushing the two pins into the chassis holes.
Inf luencing Factors on Bumper Selection:
• Active patients may require a stiffer bumper.
• Patients who are accustomed to wearing a prosthesis without a
stance-flexion feature may initially prefer a stiffer Bumper. After a trial
period of two weeks, selecting a softer Bumper is recommended.
Increasing the softness of the Bumper allows the patient to get
familiarized with the device and facilitates the transition to using its
stance-flexion feature.
Static Alignment
– Make sure the patient stands with equal weight on both legs.
– Check for correct prosthesis length.
– Check internal / external rotation.
– Check for correct load on toe and heel.
Dynamic Alignment
Ensure the patient is familiar with the functioning of the device.
Ensure the patient can activate and deactivate the geometric lock.
Swing Control
The device is designed to provide smooth and fluid friction swing control
through the mechanical manipulation of a unique polymer medium.
Additionally, the swing control can be enhanced by using the Extension
Promoter and optional Extension Assist.
Caution: For safety, please make initial assessments and adjustments
with the patient standing between parallel bars.
Polymer Friction Adjustment (Fig. 8)
1. Loosen the Set Screw (8A) by a ½ turn. Do not completely remove the
Set Screw from the right side of the device's housing unit.
8
Weight lbs
80–110
110–155
155–200
200–220
Color
Green
Black
Red
Yellow
Type
Soft
Regular
Firm
Extra Firm
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