Single-sided double-rail combined external bone fixation device

Abstract

The invention discloses a single-side double-rail combined skeletal external fixation device, which consists of a flat-rotation bone needle clip, an L-shaped bone needle clip, a main guide rail, guide rail nuts, a movable bone needle clip, a perpendicular foot rectification bracket, a metatarsal bone needle regulation mechanism, a calcaneus bone needle regulation mechanism, a regulation cushion, a spindle bolt, an auxiliary support mechanism and a bone needle, wherein the flat-rotation bone needle clip ( or the L-shaped bone needle clip) is connected with the main guide rail via the spindle bolt; the guide rail nuts are respectively screwed onto two sides of the movable bone needle clip on the main guide rail; the perpendicular foot rectification bracket is clamped on the proper position of the main guide rail; the metatarsal bone needle regulation mechanism is respectively clamped on the corresponding positions of a small guide rail and the main guide rail; the calcaneus bone needle regulation mechanism is also clamped on the corresponding positions of the small guide rail and the main guide rail; the auxiliary support mechanism is clamped and fixedly arranged on the main guide rail; the flat-rotation bone needle clip, the L-shaped bone needle clip and the movable bone needle clip are used for clamping the bone needle to form the main body of the single-side double-rail combined skeletal external fixation device. The single-side double-rail combined skeletal external fixation device can be used for skeletal external fixation, bone lengthening, bone transportation, perpendicular foot rectification and O, X and K-leg orthopaedics.

Description

technical field [0001] The invention relates to the field of orthopedics. In particular, it relates to a unilateral double-rail combined external bone fixation device. Background technique [0002] In the past, long bone fractures or bone defects caused by nonunion and osteomyelitis were mostly treated with surgical internal fixation. Even if external fixation is used, the existing equipment either cannot achieve the purpose of one-time complete cure due to the adjustment range, and then needs to be re-operated; Several surgical revisions are required; for patients with foot drop or inversion due to various reasons, soft tissue release was used to complete the operation; for patients with complicated diseases, such as foot drop accompanied by large scars and soft tissues For patients with contractures, doctors can only perform a few release operations. Often due to secondary trauma, it is difficult to return to normal after the release after surgery. Once the recovery is n...

AI Technical Summary

Problems solved by technology

Even if external fixation is used, the existing equipment either cannot achieve the purpose of one-time complete cure due to the adjustment range, and then needs to be re-operated; Several surgical revisions are required; for patients with foot drop or inversion due to various reasons, soft tissue release was used to complete the operation; for patients with complicated diseases, such as foot drop accompanied by large scars and soft tissues For patients with contractures, doctors can only perform a few release operations. Often due to secondary trauma, it is difficult to return to normal after surgery release. Once the recovery is not satisfactory, it will cause further trauma and deformity.

The patent "minimally invasive bone external fixation device for vertical foot and foot varus correction" declared by the inventor only solves the treatment and correction of the above-mentioned various diseases through minimally invasive external fixation without performing operations such as loosening, but It is necessary to penetrate the needle on the long bone of the patient, which is sometimes very inconvenient, and it is also necessary to consider avoiding nerves and blood vessels, especially for patients with femoral fractures and bone defects.

The commonly used Ilizarof external fixator is very inconvenient when used in the femur, upper arm humerus and other parts, and the patient is also very uncomfortable

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