Bone Implant TRIZ Cases

Segmenting the implant into a porous polymer cap and rigid ceramic insert resolves mechanical mismatch, preventing void space collapse during bone repair.

A porous containment body enables uniform drug distribution, resolving the trade-off between limited surface impregnation and insufficient release duration.

Retaining native cruciate ligaments during allograft replacement avoids neurovascular injuries and enables full knee flexion.

Articulating end caps on an expandable spinal implant accommodate vertebral endplate angles to prevent subsidence and improve stability.

Ramming a curdlan-ceramic mixture reduces air content below 15 percent, resolving the contradiction between bone compatibility and mechanical strength.

A removable shim retains fusion-promoting material within a fenestrated intervertebral cage, preventing leakage into surrounding tissue during implantation.

A saddle-shaped prosthetic valve uses shape memory alloys to self-expand and anchor securely within the heart annulus.

A coupling device enables six degrees of freedom movement between implant members to adjust geometry after attachment.

Articulating implant segments bend to match suboptimal surgical trajectories, preventing vertebral endplate injury while maintaining structural support.

A cobalt and titanium implant generates electric current in the body to elute antimicrobial ions from the metal surface.

A hollow tubular bone granule features a segmented porous matrix that facilitates fluid flow and cell migration.

Segmented barriers deployed within interbody implants prevent agent migration into surgical pathways while stabilizing vertebrae.

An implantable device with a 10-30 GPa flexural modulus stabilizes subchondral bone defects while avoiding biomechanical incompatibility.

A prosthetic intervertebral disc incorporates transducers and a microprocessor to generate real-time movement data parameters.

A glenoid retention plate uses suture cerclage through smooth apertures to compress bone grafts without screws.

A core-sheath calcium phosphate polymer composite mimics cortical bone stiffness through compression molding.

Deployable spin-plates rotate from retracted to locked positions, resolving stability versus complexity trade-offs in spinal fusion implants.

A bone plate with a slotted positioning opening enables precise adjustment of the implant position during surgery.

Twisted ultrafine tantalum filaments form open structures that resist compression while supporting bone growth.