US 8,945,128 B2 · External fixator system

Abstract

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.

Claims21

Dependent claims

An external fixation frame for correcting a bone deformity, comprising:

a top fixation ring;
a bottom fixation ring;
a medial adjustable length strut coupling a medial portion of the top fixation ring to a medial portion of the bottom fixation ring;
a lateral adjustable length strut coupling a lateral portion of the top fixation ring to a lateral portion of the bottom fixation ring;
a half ring coupled between the top and bottom fixation rings;
a pair of hinges extending substantially perpendicularly from a top surface of the bottom fixation ring and hingedly coupling the half ring to the bottom fixation ring;
and
an anterior adjustable length strut coupling an anterior portion of the top fixation ring to the half ring.

5 more elements

Dependencies are inferred from the claim text.

External fixator system

Life of this patent

External fixator system

Life of this patent

Abstract

Claims21