Novel Polysaccharide-derived Fixation Device for Anterior Cruciate Ligament (ACL) Reconstruction Team #13 Weekly Meeting Alexander Werne, Derek Holyoak,

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Presentation transcript:

Novel Polysaccharide-derived Fixation Device for Anterior Cruciate Ligament (ACL) Reconstruction Team #13 Weekly Meeting Alexander Werne, Derek Holyoak, Benjamin Roberts Faculty Advisor Dr. Krystyna Gielo-Perczak Clients Dr. Sangamesh Kumbar Gloria Kolb

Summary of Timeline Finalize ANSYS Testing Finalized SolidWorks drawings to Tom Mealy for 3D Printing in ME Lab Visit Dr. Kumbar’s lab to evaluate heat press for molding technique Molding of our devices from biodegradable material Physical Testing in April

Alternate Design Ideas Since Dr. Kumbar expressed a desire to use a hamstring graft instead of a bone block graft, we have begun working on alternate designs for our device Eliptical Cavity instead of circular to increase amount of material supporting the hamstring graft

Alternate Device

Device Testing in ANSYS Max Stress: 6.5e8 Pa Max Stress: 3.06e7 Pa

Interference Screw Design Pitch = 8 Length = 30mm (typical for tibial design) Diameter = 10mm Threads dulled since used for securing soft tissue graft ◦ Sharper on the tapered end of screw

Interference Screw Design

Interference Screw Testing in ANSYS

Future Work Finalize ANSYS Testing ◦ Final SolidWorks Design for Manufacturing Speak with Tom Mealy to 3D print a scaled-up version of our devices for next meeting