15-07-2021 дата публикации
Номер: US20210212729A1
Принадлежит:
A fracture reduction method and a parallel external fixator for fracture reduction for realizing the method, the fracture reduction method being used for existing six-chain ring-shaped parallel external fixators in minimally invasive fracture reduction or osteotomy of limbs. The parallel external fixator comprises two fixation rings, six struts and six markers, the fixation rings are arranged with a plurality of connecting holes, the struts are arranged with a spherical hinge, a driving joint (), a quick-mounting component and a universal hinge, the markers comprise marker balls and a pin shaft. The parallel external fixator can improve the treatment accuracy, reliability and operation convenience. 1. (canceled)2. A parallel external fixator for fracture reduction for realizing a fracture reduction method , comprising a proximal fixation ring and a distal fixation ring provided below the proximal fixation ring , the proximal fixation ring and the distal fixation ring having the same ring structure , six protrusions being uniformly provided at an interval on the sidewall of the ring structure , a plurality of inner ring connecting holes with axis in a vertical direction being uniformly provided at an interval in the entire ring structure , and outer ring connecting holes with axis in the vertical direction being uniformly provided at an interval in the six protrusions , six struts with the same structure being provided between the proximal fixation ring and the distal fixation ring , the six struts being freely configured according to the following rules that: the first strut to the sixth strut are sequentially provided around the circumferential direction of the fixation ring , and every two adjacent struts are not in parallel with each other and do not intersect with each other , wherein:each strut comprises a spherical hinge, a driving joint, a quick-mounting component and a universal hinge which are sequentially connected from top to bottom;the driving joint is a ...
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