公开(公告)号：US3869729A

公开(公告)日：1975-03-11

申请号：US31948072

申请日：1972-12-29

Applicant: NAT RES DEV

Inventor： ATTENBOROUGH CHRISTOPHER GEORG

IPC: A61F2/00 ,  A61F2/38 ,  A61F2/42 ,  A61F1/24

CPC classification number: A61F2/4241 ,  A61F2/3854 ,  A61F2002/30354 ,  A61F2220/0033

Abstract: An endoprosthetic bone joint device, suitable for the knee or other joints, is provided by way of two components of which one is slotted to receive in captive rotatable engagement therein a linkage member projecting from the other. In the direction of the slot, the slotted component has a generally convex bearing surface which engages a similarly directed concave bearing surface on the other component, but in an orthogonal direction the former surface can present two raised portions to engage respective depressions in the latter surface and resulting in a rib and groove along each side of the slot. This double rib groove formation is appropriate to a knee joint device, but can be simplified to singular curvature for another joint such as a finger. Also, the lateral dimension of the slot can progressively vary to allow a progressively varying lateral rocking capability with rotation of the components.

Abstract translation: 适于膝盖或其他关节的假体内骨关节装置通过两个部件提供，其中一个部件被开槽以在其中可自由转动地接合在另一个中的连接部件。 在狭槽的方向上，开槽部件具有大致凸起的支承表面，该表面接合另一部件上的相似方向的凹形支承表面，但是在正交方向上，前者表面可以呈现两个凸起部分以与后面的相应的凹陷 并且沿着槽的每一侧产生肋和凹槽。 这种双肋槽形成适合于膝关节装置，但是可以简化为另一关节（例如手指）的单一曲率。 此外，槽的横向尺寸可以逐渐变化，以允许随着部件旋转而逐渐变化的横向摆动能力。