Device for implanting a system for loading a cruciate ligament in a knee joint

摘要

A device for implantation in a bone is disclosed, wherein this device is a component part of a system, for controlled loading of the reconstructure anterior crucual ligament (ACL) of a knee joint. The device may comprise an outer body, which is provided with a damping mechanism between a distal end and a proximal end. Arranged inside the damping mechanism there is at least one securing element for fixing at least one thread which, at the proximal end of the device, is guided out from the outer body through an aperture in the base.

主权项

1. A device for implantation into a bone, comprising:
an outer body provided with an external screw-thread, with a front end and a base; a damping device disposed in the interior of the outer body between a distal end and a proximal end, wherein the damping device includes an axially displaceable clamping sleeve disposed within the outer body and a spiral spring, wherein a proximal end of the clamping sleeve is inserted into the spiral spring; at least one fixing element disposed within the damping device, the at least one fixing element configured to fix at least one thread, which is guided out of the outer body at the proximal end of the device through a recess in the base, wherein the thread is clamped to the at least one fixing element, wherein the fixing element is configured as a cone for accommodation within at least the proximal end of the clamping sleeve, the cone being attached at its distal end to a screw extension of a screw, and wherein the clamping sleeve is provided with an internal screw-thread extending from a distal end of the clamping sleeve for threading engagement with the screw over the entire length of the clamping sleeve excluding the proximal end of the clamping sleeve inserted into the spiral spring.