Joint Implants TRIZ Cases

Integrated aspiration ports harvest stem cells in situ, reducing surgical time and infection risk.

An asymmetric glenoidal component compensates for parallelism defects between the resectioned glenoid cavity and spinal column axis.

Segmented femoral patella path uses a reduced constraint region to resolve stability versus mobility contradictions, eliminating anterior knee pain.

Outwardly convex intermediate line matches bone geometry to prevent stress concentration and simplify alignment.

Customized jigs guide bone segments into precise alignment using virtual reduction models, preserving local blood supply.

Hinged panel segmentation enables vertical expansion of the intervertebral cage, providing stable end plate contact and optimal bone graft volume.

Magnetic offset handle reduces torque forces during screw insertion for stable fixation in severe bone loss.

Varying interior angles on the tibial augment exterior surface accommodate bone loss while reducing cement usage.

A porous titanium spinal implant uses a lattice structure to mimic bone modulus and promote bony ingrowth.

A prosthesis sleeve uses oxidized zirconium to resist mechanically assisted crevice corrosion at the head neck junction.

A hinged distal femur cutting block with contoured surfaces aligns condylar geometry for precise bone resection.

Segmented surgical instrument converts handle rotation into carriage translation to remove spinal implants, reducing recovery time.

Pinion and rack mechanisms lock an expandable interbody implant to ensure stability during bone fusion.

A surgical fastener features an asymmetric through-hole that permits controlled movement relative to a fixation pin.

Diffusion bonding joins porous metal to a substrate without filler materials, preserving biocompatibility.

A femoral head centre locating device uses a gearwheel mechanism to align a centric aperture with the native femur rotation point.

Linked locking elements secure an expandable cage, preventing relative movement and stabilizing the motion segment.

Segmented connecting pin with rigid segments on a flexible guide compensates for misalignment while maintaining pressure stability.

A multi-function orthopedic instrument uses pivotable arms to compress, distract, and bend rods during surgery.

A symmetric femoral prosthesis features a double Q-angle trochlear groove for patella tracking.

Segmented artificial knee joint surfaces clamp bone condyles to resolve stability versus surgical simplicity trade-offs.