Abstract: To avoid requiring physicians to machine a connecting apparatus in the operating room, and to easily and accurately attach and secure rods and bone screws through the appropriate combination of connectors; a feature made possible by multiple connectors, each of which includes a through-hole through which a rod can be inserted, a short rod having the same diameter as the rod, with the short rod being directed in a direction substantially orthogonal to an axial direction of the through-hole and having a length required f or the short rod to be inserted and screwed into the through-hole, and an internal thread portion that allows an external thread member to be screwed therein, with the external thread member locking the rod or short rod inserted into the through-hole; and in which configuration a first connector can be set on the rod by inserting the rod into the through-hole therein, the short rod of a second connector can be arranged in a rod-attaching portion of a bone screw, and the short rod of the first c

Abstract: The purpose of this invention is to avoid requiring physicians to machine a connecting apparatus in the operating room, and allows them to easily and accurately attach and secure rods and bone screws through the appropriate combination of connectors; a feature made possible by multiple connectors 10, each of which comprises a through-hole 11 through which a rod 15 can be inserted, a short rod 12 having the same diameter as said rod, with the short rod being directed in a direction substantially orthogonal to an axial direction of the through-hole 11 and having a length required for the short rod 12 to be inserted and screwed into the through-hole 11, and an internal thread portion 13 that allows an external thread member 25 to be screwed therein, with the external thread member 25 locking the rod 15 or short rod 12 inserted into the through-hole 11; and in which configuration a first connector 10 can be set on the rod 15 by inserting the rod 15 into the through-hole 11 therein, the short rod 12 of a second co

Abstract: The bone-fixing devices which are designed to allow for a freer assembly of the parts which are mounted to maintain plurality of bones in a specified position relationship, and also call for only one or two parts to be tightened to assemble all parts into the whole system. A pedicle 10 to be implanted into a bone is connected by using a connector 20 with a shaft 30 that serves as a reference to position the bones. In order to ensure that the pedicle 10 is connected with the fixture 20, a shaft 12 is supported in a fork 21 formed at the end of the fixture 20, said short shaft 12 is fitted into a concave 11 formed at the head of the pedicle 10, and said short shaft 12 is fixed at the head of the pedicle with a retaining screw 13 so that the fixture 20 is mounted rotatably about the short shaft with reference to the pedicle 10.