Alabama Patent of the Month – October 2021

Surgeons often need to secure one or more pieces of bone during surgery. To do this, they usually use a button-suture assembly which locks the suture in place by a knot. A hole is drilled through the bone, sutures passed through, and pulled together and secured in a knot. Tying a knot to hold the suture tight can be relatively difficult and can lose some of the necessary tension. There are some knotless systems that make it easier to use but also lose tension or stability. Dunamis, LLC has developed an improved anchor system that ensures the required tension is maintained.

The loss of tension of a knotted button-suture allows the bone to move slightly, causing a less precise placement during surgery. Dunamis’ design uses a knotless stabilizing system to maintain the tension and precision. The system uses a locking pin which mates with a button to create pinch points. The pinch points allow sutures to pass through from a baseplate. One end of the suture goes in from side A to side B, while the other end does the reverse. The button is self-locking and adjustable to ensure it holds tight. Removing the need to tie knots with your fingers or tools, and employing a self locking mechanism improves the precision of bone placement and securement during surgery.

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