External fixator system

摘要

An external fixation frame for correcting a bone deformity includes a first fixation ring and a second fixation ring. A posterior adjustable length strut couples a posterior portion of the first fixation ring to a posterior portion of the second fixation ring and has universal joint. Medial and lateral adjustable length struts couples medial and lateral portions of the first fixation ring to medial and lateral portions of the second fixation ring respectively, each of the medial and lateral adjustable length struts including a constrained hinge joint. The fixation frame also includes a half ring hingedly coupled to the second fixation ring, and an anterior adjustable length strut coupling an anterior portion of the first fixation ring to the half ring.

主权项

1. A strut for coupling a first fixation element to a second fixation element, the strut comprising:
a first strut portion; a second strut portion threadingly coupled to the first strut portion; a first joint coupled to an end of the first strut portion and configured to rotatably couple the first strut portion to one of the first and second fixation elements; and a coupling mechanism removably coupling the first joint to the end of the first strut portion.