THIGH MEMBER FOR ARTIFICIAL KNEE JOINT

PURPOSE:To prevent the dislocation of a front wall and support walls and obtain necessary bending strength by making the groove bottom of a patera groove relatively deep, making the height of both the right and left side walls of the front wall relatively high in response to it, forming a single slant rib from the branch base section center of a joint support wall to the joint front wall, and providing erected projections at base sections of the joint support walls. CONSTITUTION:The groove bottom a41 of a patera groove a4 provided nearly at the center of the front face of a joint front wall a1 is made relatively deep, the height of both the right and left side walls a11, a11 of the front wall a1 is made relatively high in response to it, a single slant rib a5 is formed from the branch base section center of joint support walls a2, a2 to the joint front wall a1, and erected projections a6, a6 are provided at base sections of the joint support walls a2, a2. The stability of the front wall a1 and the wall a2, a2 is improved at the time of the sliding movement against a shank member B, dislocation is prevented, and both side walls a11, a11 are reinforced. The front wall a1 is efficiently reinforced against the bending load by the slant rib 5.