Steel plate for locking foot bone in multidirectional mode

Abstract

The invention discloses a steel plate for locking the foot bone in a multidirectional mode. The steel plate comprises a quadrangle body part, a first protruding part, a second protruding part, a third protruding part and a fourth protruding part, wherein the first protruding part, the second protruding part, the third protruding part and the fourth protruding part protrude and extend from the quadrangle body part. A first pressurizing hole is formed in the first protruding part. A first thread hole is formed in the second protruding part. A second thread hole is formed in the third protruding part. A second pressurizing hole is formed in the fourth protruding part. A first groove is formed between the first protruding part and the second protruding part. A second groove is formed between the second protruding part and the third protruding part. A third groove is formed between the third protruding part and the fourth protruding part. A fourth groove is formed between the fourth protruding part and the first protruding part. A plurality of kirschner wire fixing holes are formed in the quadrangle body part. An observation hole is formed in the center of the quadrangle body part. Three to six notches are formed in the wall of the first thread hole, and three to six notches are formed in the wall of the second thread hole. The notches extend in the axial direction of the corresponding thread holes so that multidirectional locking of fixing screws can be achieved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a multi-directional locking steel plate for foot bones. Background technique [0002] There are 26 bones in the foot, including the tarsus, metatarsal, and phalanges. There are 7 tarsal bones, namely the talus, calcaneus, cuboid, navicular, and the first, second, and third cuneiform bones; there are 5 metatarsal bones, which are the first, second, third, fourth, and fifth metatarsals from inside to outside; the phalanges There are 14 pieces, except for the big toe which has 2 sections, the rest of the toes have 3 sections, a total of 14 pieces. When a displacement fracture occurs between the navicular bone and the talus, usually a steel plate is used to fix the fractured part to restore its anatomical structure. Threaded holes, by installing several fixing screws in several threaded holes, the locking plate is fixed on the navicular bone and the talus. The defect of the locking...

AI Technical Summary

Problems solved by technology

When a displacement fracture occurs between the navicular bone and the talus, usually a steel plate is used to fix the fractured part to restore its anatomical structure. Threaded holes, by installing several fixing screws in several threaded holes, the locking plate is fixed on the navicular bone and the talus. The defect of the locking plate in the prior art is that the direction of each threaded hole is designed according to the predetermined direction Okay, so the fixing screw can only be installed in the direction of the threaded hole when screwing in, but in the actual operation process, the position of the fracture is often unpredictable, so the locking plate with the threaded hole in this fixed direction is used for fracture surgery has greater limitations

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