All-trans wrist joint prosthesis retaining function of distal radioulnar joint

An all-trans wrist joint prosthesis retaining the function of a distal radioulnar joint comprises a carpal bone base, a carpal bone joint fossa, a movable ball and a radial handle, and a wrist bone marrow needle is arranged on the carpal bone base; the carpal joint fossa is connected with the carpal base through a connecting plate; the movable ball body is of an elliptical hemispheroid structure matched with the lower surface of the carpal joint fossa; the movable ball body is connected with the radius handle through the radius connecting plate, the radial bone marrow needle and the ulna bone marrow needle are arranged below the radius handle, a lock hole is formed in the upper surface of the ulna bone marrow needle, a limiting lock catch is arranged below the radius handle, and the ulna bone marrow needle is connected to the limiting lock catch through the lock hole. According to the utility model, the defects in the prior art are overcome, and a larger movement range is obtained through the design of the re