Internal Osteosythesis TRIZ Cases
- Cannulated Screw for Joint Fusion with Therapeutic Delivery
A cannulated screw system delivers osteogenic materials through a hollow shaft to promote bone fusion.
- Orthopaedic Implant Uniform Moment of Inertia Stress Distribution
Non-uniform cannulation maintains a uniform moment of inertia along an orthopaedic implant body, reducing stress risers.
- Dynamic Spinal Stabilization Rod-Cord Connecting Members
A dynamic longitudinal connecting member assembly uses rigid rods and flexible ties to provide protected spinal motion.
- Asymmetric Spinal Rod Cross-Section for Rotation Control
A spinal support rod with asymmetric flat and rounded sides engages a matching channel to constrain axial rotation.
- Intramedullary Rod Pivotable Fastener for Femur Fracture Fixation
A pivotable fastener mechanism in an intramedullary rod adjusts fixation angles relative to the nail axis.
- Expandable Spinal Joint Distraction Implant
An expandable cage within a minimally invasive delivery device increases foraminal height to relieve radicular symptoms without modifying spine biomechanics.
- Multi-Staple Inserter and Drill Guide for Orthopedic Fracture Fixation
A multi-staple inserter strains shape memory staples while a drill guide aligns screw trajectories.
- Fracture Reduction Assembly with Cam Mechanism
A controlled fracture reduction assembly uses a cam mechanism to apply precise compressive force on bone fragments.
- Robotic Spinal Implant System for Precise Bone Fastener Placement
A robotic spinal implant system guides bone fasteners along pre-planned trajectories to enhance surgical precision.
- Surgical Instrument Collet and Sleeve for High Torque Spinal Fixation
A surgical instrument uses a collet and sleeve configuration to transmit high torque for precise spinal fixation.
- Syndesmosis Targeting Guide Device for Accurate Screw Trajectory
A syndesmosis targeting guide device couples to a bone plate to establish a fixed entry point and adjustable trajectory for precise screw placement.
- Virtual Prototyping System for Medical Device Design Iteration
A virtual prototyping system generates interactive 3D device configurations using real-time finite element analysis and computational fluid dynamics simulations.
- Monolithic Bone Anchoring Coupling Device via Additive Manufacturing
A monolithic coupling device merges receiving and locking parts into one inseparable unit using selective laser melting.
- Modular Intervertebral Prosthesis With Anchored End Plates
Segmented modular intervertebral prosthesis uses permanently anchored artificial vertebral end plates to support detachable functional modules.
- Telescopic Bone Lengthening Nail With Rotary Oscillation Mechanism
A telescopic bone lengthening nail uses rotary oscillations to drive step-wise longitudinal translation of nested tubes for controlled elongation.
- Translaminar Interspinous Stabilization System Anchoring
A translaminar interspinous stabilization system anchors to the vertebral lamina using lateral plates and bone fasteners.
- Hybrid Bone Screw With Additive Porous Layer
A bone screw uses additive manufacturing to create a porous surface layer for enhanced bony in-growth.
- Biased Screw Bone Fastener for Spinal Stress Distribution
A biased screw bone fastener with a retainer stabilizes vertebral rods while distributing stress across spinal elements to reduce pain.