Abstract: An assembling kit for installing intramedullary nail is provided, which is suitable for assisting in fixing a securing member to at least one fixing hole of an intramedullary nail placed in a bone. The assembling kit for installing intramedullary nail includes a drilling member, a guiding member and a hole-reaming member. The drilling member is configured to form an opening on a surface of the bone and has a tapping portion. A diameter of the tapping portion is greater than a diameter of the fixing hole. The guiding member is configured to be put into the fixing hole along a central axis. The hole-reaming member is sleeved on the guiding member and is configured to ream the opening to form a mounting hole. The hole-reaming member has a reaming portion, and a diameter of the reaming portion is greater than the diameter of the tapping portion.

Abstract: An assembling kit for installing intramedullary nail is provided, which is suitable for assisting in fixing a securing member to at least one fixing hole of an intramedullary nail placed in a bone. The assembling kit for installing intramedullary nail includes a drilling member, a guiding member and a hole-reaming member. The drilling member is configured to form an opening on a surface of the bone and has a tapping portion. A diameter of the tapping portion is greater than a diameter of the fixing hole. The guiding member is configured to be put into the fixing hole along a central axis. The hole-reaming member is sleeved on the guiding member and is configured to ream the opening to form a mounting hole. The hole-reaming member has a reaming portion, and a diameter of the reaming portion is greater than the diameter of the tapping portion.

Abstract: An acetabular cup structure of the present invention includes a ball-and-socket prosthesis and a liner, where a ball wall of the ball-and-socket prosthesis has a groove formed by connecting at least two continuous straight lines, and the groove connects an outer surface of the ball wall to an inner surface of the ball wall, so that an expandable sheet is formed between the groove formed by connecting the at least two continuous straight lines and having an angle there-between and two ends of the groove that are not connected, and the liner, for connecting a femoral stem, is tightly attached to the inner surface of the ball wall, and when the liner is tightly attached to the inner surface of the ball wall, the liner presses the sheet and extends to the groove, so that the liner is attached to the ball-and-socket prosthesis more tightly.