Joint fossa professional thesis of movable bearing type

摘要

In order at the scapula to use, the professional thesis assembly which is formed, the stretching joint fossa bearing and that stretching which possess the 1st connected part which extends from the 2nd bearing surface of opposite side of the 1st bearing surface and that bearing surface which possess the spherical humerus component and the 1st spherical outer part part and possess (ii) 2nd radius of curvature the 2nd spherical outer part part and the (iii) 1st spherical outer part part and is located with the 2nd spherical outer part parts the central part which possess (i) 1st radius of curvature in one execution form,In order revolution to support the joint fossa bearing possibly, it has with the base which is formed, 1st radius of curvature is something which is equal to 2nd radius of curvature substantially, the central part does not have the radius of curvature which is equal to 2nd radius of curvature substantially.