Alabama Patent of the Month – December 2023
Dunamis Medical Technologies, Inc., a medical device company focused on repairing soft-tissue injuries, has recently been granted a patent for their knotless orthopedic stabilization system.
Existing stabilizers and bone suspension devices lock the bone in place with a knotted suture. The process of physically tying the knot is particularly difficult and can result in tension loss. Dunamis Medical’s knotless system maintains sufficient tension to promote better healing.
The assembly comprises a suspension device with a button and a locking pin, intricately designed to create a seamless connection between tissues, bones, or other fragments. What sets this system apart is its dynamic nature, using compression and friction applied to the suture between the button and the locking pin to maintain a locked position.
Dunamis Medical’s innovation extends to the intricate design of the locking pin, featuring a beveled disc. This design, combined with a distal protrusion and transverse opening, allows for the formation of multiple suture loops, adding an extra layer of versatility to the assembly.
The method employed in securing bone or tissue fragments is equally ingenious. By manipulating sutures through a baseplate and a locking pin mated with a button, surgeons can create tension in the construct. What sets this method apart is its ability to automatically lock when the applied tension is released, eliminating the common issue of tension loss observed in traditional knot-tying methods.
This innovation addresses a longstanding challenge in bone suspension devices where tension is lost during the locking process. The Knotless Orthopedic Stabilization System maximizes tensile strength through pinch points designed to optimize the surface area of contact between the suture and the locking elements. This not only ensures a secure lock but also enhances the overall stability of the construct.
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