| 摘要 |
The invention provides a dynamic external fixator, including an elongate body having an axial bore accommodating, in a first portion thereof, at least part of a first member of a universal joint and, in a second portion thereof, a linear guide element, a first arm having an end portion carrying the second member of said universal joint. The arm is provided with a plurality of apertures for the traversing therethrough of bone pins. There is also provided a second arm integral with, or fixedly attached to, a member of the guide element and provided with a plurality of apertures for the traversing therethrough of bone pins, and a spring accommodated in the axial bore of the body and bearing, on the one hand, against the first member of the universal joint and, on the other, at least indirectly, against the guide element, thereby opposing forces acting on the second arm.
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