In-situ curing biodegradable anchor with reinforcement

Abstract

The present invention provides an anchor system for musculoskeletal applications, e.g., for anchoring tendons or ligaments to bone or anchoring two or more bone sections. The anchor system comprises asubstantially solid pre-manufactured distal portion (i.e., anchor component) and a settable, biodegradable composite. The biodegradable composite is flowable at the time of delivery and is introducedinto the fixation site before or after the anchor component. Both the anchor component and the biodegradable composite may be manufactured from citrate-based polymers.

Description

[0001] related application [0002] This application claims priority to U.S. Provisional Application No. 62 / 418,535, filed November 7, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to anchoring systems for musculoskeletal and other anatomical fixation applications. Background technique [0004] Currently used bone anchors are typically fixed shapes that are either threaded into the bone matrix or press fit into the bone matrix, causing stress to the area surrounding the anchor placement site. This pressure prevents the surgeon from placing the anchor very close, and bone quality needs to be high to achieve adequate initial fixation. Furthermore, bone is not homogenous, and with traditional fixed geometry anchors, there may be areas where the anchor is not pressed tightly against the bone, resulting in a weaker interface. The present disclosure overcomes limitations / disadvantages of the prior ...

AI Technical Summary

Problems solved by technology

This pressure prevents the surgeon from placing the anchors very close together and the bone quality needs to be high to achieve adequate initial fixation

Furthermore, bone is not homogenous, and with traditional fixed geometry anchors, there may be areas where the anchor is not pressed tightly against the bone, creating a weaker interface

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