Importance

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Abstract

The invention is directed to a target device for proximal and distal locking of medullary nails without X rays. The proximal and the distal target devices each have a U-shaped part, wherein guide bores are disposed in the widened end areas of the legs of the U-shaped parts. The medullary nail is fixedly connected with the proximal target device via a crosspiece and the proximal target device is connected with the distal target device by a pivotable and adjustable spacer. The distance of the end of the medullary nail from the distal target device is adjusted by a spacer element such that the center axes of the guide bores in the target devices are aligned with the center axes of channels or bores in the medullary nail, which channels communicate with the guide bores. The spacer is adjustable in a telescoping manner, and a rigid connection element connects a leg of the U-shaped proximal target device with a leg of the U-shaped distal target device in the plane of the center axes of the guide bores or medullary nail channels. The connection element is mounted so as to be rotatable at the leg of the U-shaped proximal and distal target device, and the spacer is arranged so as to be pivotable at the proximal target device via a joint vertical to the plane of the center axes of the guide bores and medullary nail channels.

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First Claim