Annular external fixator assembly capable of correcting rotation deformity

Abstract

The invention discloses an annular external fixator assembly capable of correcting rotation deformity. The invention relates to the technical field of medical instruments. The annular external fixatorassembly capable of correcting rotation deformity comprises a first fixing ring, a second fixing ring, a rotating ring, a third fixing ring, rotating ring fixing assemblies and kirschner wires; the second fixing ring is arranged on the upper side of the first fixing ring; the second fixing ring is opposite to the first fixing ring; the rotating ring is arranged on the upper side of the second fixing ring; the rotating ring is opposite to the second fixing ring; the third fixing ring is arranged on the upper side of the rotating ring; the third fixing ring is opposite to the rotating ring; a plurality of rotating ring fixing assemblies are uniformly arranged on the outer edge of the second fixing ring; wherein the first fixing ring is fixedly connected with the second fixing ring, the second fixing ring is rotatably connected with the rotating ring through the plurality of rotating ring fixing assemblies, the rotating ring is fixedly connected with the third fixing ring, and the firstfixing ring, the second fixing ring and the third fixing ring are respectively provided with two kirschner wires. The annular external fixator assembly has the characteristics of flexibility in use and convenience in adjustment.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an annular external fixator assembly capable of correcting rotational deformities. Background technique [0002] In traditional external fixation, a splint or plaster is usually used to fix the fracture outside the skin. Since the splint or plaster is separated from the fracture by soft tissues such as muscles, blood vessels, and nerves, there is room for movement at the fracture end, so it is difficult to achieve anatomical alignment. The subsidence of swelling caused by trauma and the disuse of muscle atrophy caused by the inability of the affected limb to move effectively exacerbate the loosening of external fixation, thus easily causing serious consequences such as malunion, delayed union or nonunion of fractures. [0003] The traditional annular external fixator can fix, extend, and migrate bones well, and can easily correct angulation and malalignment deformitie...

AI Technical Summary

Problems solved by technology

[0002] In traditional external fixation, a splint or plaster is usually used to fix the fracture outside the skin. Since the splint or plaster is separated from the fracture by soft tissues such as muscles, blood vessels, and nerves, there is room for movement at the fracture end, so it is difficult to achieve anatomical alignment. The subsidence of swelling caused by trauma and the disuse of muscle atrophy caused by the inability of the affected limb to move effectively exacerbates the loosening of external fixation, which easily causes serious consequences of malunion, delayed union or nonunion of fractures

[0003] The traditional annular external fixator can fix, extend, and migrate bones well, and can easily correct angulation and malalignment deformities, but the traditional annular external fixator is very troublesome to correct rotational deformities, and the structure is relatively complicated

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