Patent ID: 9687277
Date: 2017-06-27
CPC Classifications: A61B

Claim:
1. An implantation system configured to treat a defective curvature of the spinal column of a patient; the system comprising: at least one element being elongated in a longitudinal direction; at least one first bone fixation element configured to be fixedly attached to a first vertebra of said spinal column, the first bone fixation element being fixedly attached to said elongated element at a first location along said longitudinal direction of the elongated element; at least one second bone fixation element configured to be fixedly attached to a second vertebra of said spinal column, said second vertebra being different from said first vertebra; and a guiding structure through which the second bone fixation element is slidably and contactingly connected to the elongated element for guiding the second bone fixation element relative to the elongated element in a sliding range along said longitudinal direction; said sliding range being distant from said first location; wherein the elongated element has bending resilience and/or torsional resilience for resiliently applying in a mounted condition of the implantation system via said first and second bone fixation elements and via said first and second vertebrae, corrective bending and/or torsional force action to said spinal column for correcting said defective curvature; wherein said guiding structure is realized in that the elongated element is shaped to comprise a resilient U-shaped portion, said U-shaped portion having two legs and an interconnecting part interconnecting said two legs, wherein said U-shaped portion with its interconnecting part is facing away from said first location; wherein one of said two legs is a free ending leg of the elongated element, said free ending leg having a bending resilience, wherein said sliding range is extending along at least part of said U-shaped portion, and wherein said sliding and contacting connection is present between the second bone fixation element and at least said free ending leg of the U-shaped portion in that said guiding structure comprises a passageway which has a slot-like transverse cross-sectional shape which allows said two legs of the U-shaped portion, both of which are extending through said passageway, to laterally move towards and away from one another when one or both of said two legs are resiliently deforming.