Össur KH5 Instructions For Use Manual

Contents

10Note: If the user feels unsafe while walking, e.g. has a slight wobble during the stance phase, use the next harderbuffer. If the user feels that there is too little damping in the stance phase, use the next softer buffer.Mounting the buffer elementsThe buffer without a hole serves as the front stop buffer (A).The back buffer (P) with holes for progressive damping is mounted in the IKF adapter with the holes facingupwards. (Fig. 1)KH5 Knee with loop adapter• Fill the central thread of the loop adapter (42) completely with Plastilin so that no resin can penetrate into thethread during lamination and the central screw can later be screwed in completely. Safety requirement!• Make up a dummy disc and fix this to the adapter with double-sided adhesive tape.• Laminate the loop adapter (42) with sufficient carbon fibre and fibre glass to suit the individual patient’s needs.Important: Please tie the groove off well!• After lamination, grind the distal end of the adapter free and remove the Plastilin.• Slide the washers (37 & 38) over the 29 mm central screw (35) and guide the screw through the central openingin the head of the joint (25).• Slide the adjustment discs (41) over the thread of the central screw (35) and tighten the loop adapter (42) to atorque of 35 Nm.• When fitting the two adjustment discs (41), make sure that the fine serrations on the inner surfaces facetowards each other.• Secure the 29 mm central screw (35) with Loctite and use a torque wrench (8 mm Allen key).KH5 Knee with a 3-arm socket adapter• Before adjusting (moulding) the 3-arm socket adapter to the individual socket form, screw the adapter with anexternal thread (40) into the internal thread of the 3-arm socket adapter. Secure the M5 locking screw of the3-arm socket adapter to a torque of 10 Nm.• Mould the 3-arm socket adapter to the individual socket shape.• Loosen the M5 locking screw on the 3-arm socket adapter and remove the attached adapter.• Cover the internal thread of the 3-arm socket adapter with grease and screw in the supplied dummy. Onceagain secure the M5 locking screw of the 3-arm socket adapter to a torque of 10 Nm. Fill the slot in the 3-armsocket adapter, the screw head, and any exposed thread with Plastilin.• Laminate the 3-arm socket adapter with sufficient carbon fibre and fibreglass to suit the individual patient‘sneeds.• After lamination, loosen the M5 locking screw of the 3-arm socket adapter and remove the screwed-in dummyand any remaining resin or Plastilin.• For final assembly, now screw the adapter with the external thread (40) completely into the internal thread ofthe 3-arm socket adapter.Attention: when carrying out any later adjustments, do not unscrew the adapter with the external thread (40)more than one full turn.• Secure the M5 locking screw of the 3-arm socket adapter with Loctite and to a torque of 10 Nm. Use a torquewrench (5 mm Allen key).• Slide the washers (37 & 38) onto the 29 mm central screw (35), guide the screw through the central opening inthe head of the joint (25), and tighten the adapter (40) to a torque of 35 Nm.• Secure the central screw (35) with Loctite and use a torque wrench (8 mm Allen key).Attention: never mix up the central screws! The pyramid adapter (39) must be screwed tight with the 40 mm longcentral screw (36), the loop adapter (42) and the adapter with the external thread (40) must be screwed tight withthe 29 mm long central screw (35), and the IKF Adapter (43) must be screwed tight with the 27 mm long centralscrew (34). Safety requirement!OPTIMISING THE PROSTHESIS ALIGNMENTAfter loosening the respective central screw, unlimited rotation (exception: IKF-Adapter) and AP/ML corrections of5 mm are possible.In addition, in the case of the KH5 Knee with loop adapter, alignment corrections in flexion, extension, adductionand abduction of up to a maximum of 10° are made possible through the use of adjustment discs (41).