Orthosis Construction; Joint Alignment; Dynamic Initial Fitting; Function Check - Basko Healthcare Swing Phase Lock 2 Manual

Orthosis Construction

Basically any type of construction is suitable as long as sufficient torsion rigidity and a possibility of
changing the flexion position during the initial fitting is taken into account.
When the Joint is used in a Carbon fiber reinforced Construction, the SPL 2 should be disassembled by
removing the Satellite – disconnect the cable within the Function Unit (H) and loosen the IQ set screws
(D), Loosen the adjustment screw and gently pull the cable from the housing . Now the Function Unit
(H) can be pushed inside and removed .
The SPC flexion Control Unit has to be removed (E) and sealed with Stick Wax (Art. nr. 990035) to
prevent improper resin flow. In this case the Upright spacer can be used (Art. nr. 029860) and aligned,
allowing the Joints to be mounted in a later stage .

Joint Alignment

The Alignment Unit has to be parallel to the plumb line . The SPC Joint should not be aligned in full
extension . If the Joint is aligned without using the Unit the Cover Plates (B) may be removed allowing
the Joint axis to be used for parallel alignment .

Dynamic Initial Fitting

Function Check

Prior to the initial fitting the proper setting of the Joint need to be checked
The slotted arm of the Function Unit (H) must be set in neutral 0 position
■
(see picture) when the Satellite is in the 1st mode . Adjust with the
Proximal adjustment screw (F) on the SPL 2 is necessary .
Can the SPL 2 Joint lock after swing with the Satellite in the 1st mode?
■

Adjusting locking and unlocking

Timing settings to lock or unlock can be read or adjusted by moving the
pendulum weight of the Function Unit .
Moving the pendulum ANTERIOR (forward), DECREASES the tendency to
■
lock, because its weight is shifted forward .
Moving the pendulum POSTERIOR (backward), INCREASES the tendency
■
to lock because its weight is shifted backward .
32 Swing Phase Lock 2

Satellite Control

The patient needs to be instructed on functionality and how to operate the satellite .
Mode 1 – Automatic Locking and Unlocking
The slider on the satellite is positioned in the middle . This is the normal position by which the SPL 2
joint automatically locks and unlocks during walking . In this mode, the joint can also be unlocked once,
by slightly pushing the switch upwards . The automatic mode is activated again when the joint is fully
Fig . 1
extended .
Mode 2 – Permanently Unlocked
The slider on the satellite is slid upward from the center . In this mode the SPL 2 joint is permanently
unlocked . NOTE: When deactivating the permanent unlocking (by pushing the central button), the
satellite automatically shifts into the permanent locking mode and thus needs to be slid up into the
Fig . 2
automatic locking/unlocking mode .
Mode 3 – permanently Locked
For this purpose the central button on the satellite is to be pressed for the slider to slid fully down . This
is a safety mode in which the SPL 2 joint is constantly locked (e .g . at home, making many turns, etc . ) .
Fig . 3
Shortening the Satellite Cable
First determine the position where the satellite will be mounted on the
thigh cuff of the orthosis in order to establish the correct cable length .
Bear in mind that the cable should have a slight S-shape .
1 . Position the joint in full extension and set the satellite in Mode 3 by
pressing the button on the satellite (see Fig. 3) . Make sure the joint
is indeed locked .
2 . Use the supplied Allen screwdriver to loosen the two screws on the
medial (stainless steel) Cover Plate and remove it (see Fig. 4) .
3 . After removal of the cover plate check if the upper side of the Lever
Arm (holding the satellite cable) is parallel to the lower of the three
markers on the Function Unit (see Fig. 5) .
4 . Using a Phillips screwdriver, loosen the screw of the Service Hatch at
the back of the satellite and remove the cover and screw .
5 . Use the Allen screwdriver to loosen the cone point safety screw two to
three turns and slide the Cable End Block of the inner cable (see Fig. 6) .
6. Twist the Teflon outer cable from the Swivel Connector at the bottom
of the satellite . Place the Swivel in one hand between your thumb
and forefinger and the Teflon outer cable in the other hand between
the thumb and forefinger and unscrew (counterclockwise) the outer
cable from the Swivel Connector (see Fig. 7) . Subtract the inner cable
outwards through the Swivel .
7 . Loosen the Cone Point Safety Screw on the side of the joint, two turns
will do (see Fig. 8) . Do not remove the screw from the joint .
8. Turn the Satellite Set Screw (which connects the Teflon cable to the
joint) completely in the joint and then two complete turns up again .
9. NOTE: carve the Teflon outer cable with a sharp knife to the desired
length and remove the excess outer cable (the inner steel cable will
be shortened in step 14) .
Basko Basko
Healthcare Healthcare
Fig . 4
Fig . 5
Fig . 6
Swing Phase Lock 2 33