RPI ID: 2018-051-401

Innovation Summary:

This invention introduces a force measuring apparatus that integrates with loadbearing medical devices, such as orthopedic implants. It features a force concentrator with a lower bending stiffness than the device it attaches to, enabling it to convert eccentric axial forces into transverse forces. These transverse forces are then measured using a strain gauge or similar sensor. The system allows for real-time, in situ monitoring of mechanical loads without compromising the structural integrity of the implant.

Challenges / Opportunities:

Monitoring internal forces in orthopedic implants is critical for assessing healing progress, implant performance, and patient-specific biomechanics. Traditional systems are either invasive, lack precision, or are not scalable for long-term use. This invention addresses these limitations by offering a non-invasive, passive, and scalable solution. It opens opportunities for smart implants and personalized rehabilitation protocols.

Key Benefits / Advantages:

✔ Enables real-time force monitoring in orthopedic implants
✔ Non-invasive and does not compromise implant strength
✔ Compatible with existing implant geometries
✔ Facilitates early detection of implant failure or improper loading
✔ Supports data-driven rehabilitation and recovery tracking
✔ Modular and inexpensive design for clinical adoption

Applications:

• Orthopedic implants (e.g., intramedullary nails, plates, joint replacements)
• Monitoring fractures and spinal fusion
• Biomechanical research and clinical trials
• Post-operative monitoring and rehabilitation

Keywords:

#Orthopedic Implants #Force Sensor #Biomechanics #Smart Medical Devices #Strain Gauge #Load Monitoring

Intellectual Property:

Issued Patent US 11,426,250 B2