Sleeve for a transfixation device for an external skeletal fixator

摘要

Disclosed is a sleeve for a transfixation device for an external skeletal fixator having a longitudinal axis, a right portion, a left portion, an outer wall, an interior wall and a lumen. The sleeve is implantable across the opposed cortices of a long bone. The lumen is adapted to receive a pin that is connectable to an external supporting structure of the external skeletal fixator. The lumen includes at least one contraction in the right portion and at least one contraction in the left portion. The at least two contractions serve as supports for the pin for avoiding contact between the pin and the interior wall, except at the contractions. Also disclosed is a transfixation device for an external skeletal fixator including a sleeve such as described and one or more pins.

主权项

1. A transfixation device for connection to an external supporting structure of an external skeletal fixator, said transfixation device comprising:
a sleeve having a longitudinal axis, a first open end, a second open end, an outer wall, an interior wall and a lumen; and a pin having opposed ends each configured for connection to the external supporting structure of the external skeletal fixator; wherein the pin is configured to be received within the lumen of said sleeve, with the opposed ends of the pin connected to the external supporting structure of the external skeletal fixator, when said sleeve is implanted across opposed cortices of a bone, wherein said lumen comprises at least two longitudinally spaced apart contractions monolithically formed as part of the sleeve, wherein a first of said at least two contractions is located inward of the first open end in a first halving portion of the sleeve, wherein a second of said at least two contractions is located inward of the second open end in a second halving portion of the sleeve, wherein said at least two contractions have a form allowing them to serve as supports for said pin when the pin is received within said lumen thereby preventing contact between said pin and said interior wall except at said at least two contractions.