External fixator element

摘要

A polymeric external fixator element, such as a rod or a pin or a clamp, has at least one contacting surface. At least one of the contacting surfaces of the element responsible to establish connection between the element and a different external fixator element is provided with a rough ablated structure. The clamping can be improved if one of the polymeric elements comprise fibers having fiber parts protruding above the surface.

主权项

1. An external fixator element comprising a polymeric rod and a pin having first and second ends and a polymeric clamp, the clamp having a pair of jaws, each jaw having a polymeric rod or pin contact surface, the rod and the pin first end have a polymeric contacting surface for contacting the polymeric contact surface of each jaw clamp, the pin second end capable of insertion into tissue, the contact surface of the polymeric rod and each jaw of the clamp and the polymeric pin first end, which surface is responsible for an interconnection therebetween, being provided with a rough ablated fiber reinforced polymeric structure, the polymeric structure having a surface region with partially embedded reinforcing fibers extending outwardly from the contacting surface in a direction or plane of the surface, the reinforcing fibers having a length greater than 0.1 millimeter and less than 2 millimeters, wherein free ends of the partially embedded fibers protrude from the contacting surface into contact with the rod, metal pin or clamp.