Knee joint prosthesis of support plus tibia and femur parts

摘要

The support is inserted positively together with its swivel axis (4) into a housing (2) via a channel (11) for the axial end of the support so the axis (13) clips into the bearing space provided in the housing. The support can be bolted into the housing and an access channel (17) is closed-off in part by a cover forming part of the bolting system. The channels runs out of an entry on the housing underside facing the tibia part of the joint where the housing faces the patella. The channel may ride out of an entry (18) on the top side of the housing facing the tibia so that in this case the entry is in the rear upper side of the housing facing away from the patella. The locking bolt (19) can adjust in guide (24) adjoining the housing top and so moves in a bending plane normal to the swivel axis (13). The bolt is also slotted out parallel to axis (13) for a cam (30) itself sited in a channel (36) running from the housing underside to the top of the housing arranged so that the locking bolt (17) can be shifted by an inserted tool via the cam.