Michigan Patent of the Month – November 2023

Shoulder Innovations, Inc. is revolutionizing shoulder replacement surgeries with their InSet™ glenoid fixation technology. 

Traditionally, shoulder replacement follows one of two treatment approaches: anatomic and reverse. With anatomic, the prosthesis largely matches the natural human anatomy. The reverse approach uses a reverse prosthesis, where the articular surface is reversed and a metallic ball is fixed to the glenoid fossa of the scapula. The decision for which type of prosthetic is based on a number of factors including patient pain, activity level, and anatomy. 

Recently, Shoulder Innovations has patented their total reverse shoulder system, marketed as InSet™ Reverse. A reverse prosthesis can typically offer greater stability in articulation. Shoulder Innovations’ design even further improves upon this stabilization, creating greater patient outcomes.

The design intricacies—featuring a baseplate, a glenosphere, and a central screw—introduce unparalleled stability and adaptability in patient-specific conditions. The disc-shaped baseplate is angled along a longitudinal axis. The baseplate has a stem, superiorly extending from the disc portion, providing enhanced support while its peripheral edge, equipped with innovative slots, ensures the requisite anti-rotation function. The baseplate is also manufactured with a porous coating and conical geometry to improve biocompatibility, encouraging quicker and more reliable bone integration. The Morse taper lock of the stem solidifies the baseplate’s position, ensuring a secure fit within the scapular bone.

Complementing this innovation is the glenosphere, a superior dome-shaped surface with a rotational control feature, facilitating an adjustable connection with the baseplate. Additionally, the central compression screw, non-integral with the baseplate, further fortifies the system’s structure.

Are you developing new technology for an existing application? Did you know your development work could be eligible for the R&D Tax Credit and you can receive up to 14% back on your expenses? Even if your development isn’t successful your work may still qualify for R&D credits (i.e. you don’t need to have a patent to qualify). To find out more, please contact a Swanson Reed R&D Specialist today or check out our free online eligibility test.

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