Internal Osteosythesis TRIZ Cases

Axial conduit system with lead-throughs distributes pharmaceutical fluids along the bone canal surface, preventing systemic side effects and emboli.

A ratcheting tensioning drum maintains optimal cerclage wire tension, preventing wire migration and boney erosion while ensuring stable bone union.

Segmented osteotomy cuts correct intermetatarsal angles via rotation, eliminating joint fusion to reduce recovery time and preserve foot mobility.

Navigation systems identify screw head impingement and optimize rod bending paths, reducing unnecessary contouring that weakens fixation rods.

A lamina reinforcement implant bridges resected bone segments using a cantilever part and angled anchoring surfaces.

Segmentation and universality principles enable a modular spinal prosthesis with adjustable crossbars that accommodate unique anatomical variations.

Angled bone screw bores prevent pullout and tissue damage by eliminating set screws and multiple plate varieties.

A magnetic position tracking system calculates landmark coordinates relative to an orthopaedic implant using dual sensor data.

A motorized surgical tool uses a counter-torque sleeve to balance rotational forces during spinal implant manipulation.

A dynamic stabilization device uses a multi-layered longitudinal member to preserve spinal motion while maintaining structural stability.

Movable saddle in hybrid spinal screw adjusts rod angulation while maintaining compact profile.

A clip-type cranial flap anchoring device secures bone segments using a U-section and L-section design that fastens to the skull with a screw.

A reference body and alignment flange guide bone plates to match intramedullary nails, resolving positioning conflicts.

A spinous process fixation device uses spaced polyaxial plates to stabilize adjacent vertebrae.

Varying coil pitch in a single metallic spring creates progressive characteristics that absorb compressive forces while maintaining spinal mobility.

A needle-coupled parallel mechanism uses independent links to constrain the main shaft position and posture.

Segmented threaded members enable precise three-axis translation of bone segments, resolving the complexity trade-off in calcaneal slide osteotomy procedures.

A threaded spinal rod reducer uses a rotatable knob to drive axial movement for precise rod seating.

A dual-function bone implant merges mechanical fixation with an embedded electromagnetic field generator to stimulate healing.

A cervical distractor uses segmented assemblies to control vertebral body separation and alignment during anterior spinal surgery.

A subcutaneous implantable device uses a gear mechanism to gradually align the spine through controlled cable tension.

An integrated beveled cannula cutting tool merges visualization with oscillating bone removal, maintaining visual control while increasing procedural speed.

Nested retainers prevent screw back-out while elongated bores allow controlled translation between vertebrae.

Elongated connecting element disperses shear forces through a resilient intermediate element and flexible tether.

A magnetically coupled implantable bone reshaping device applies controlled forces to correct deformities, eliminating percutaneous pins that cause infections.

A spinal bone fastener uses surgical navigation to enable precise placement of the implant within the vertebra.

Curved hinge regions enable elastic leg pivoting for controlled compression, eliminating tamping that disrupts bone tissue integrity.

A drill guide system directs drilling through wrist bones from a single dorsal incision to reconstruct interosseous ligaments.

Bumps on the periphery of transverse bores in intramedullary nails diffuse stress concentrations that cause fractures under cyclic loading.

Variable diameter geometry distributes stress evenly, reducing micromotion and promoting faster bone healing.

A self-aligning spinal attachment device pivots to secure elongated members within vertebral structures.

A bone fixation device features rotatable clamps on a housing to enable universal movement for precise positioning of spinal rods.

A bone anchor insertion device integrates a retractable stylet within a cannulated shaft to control depth and directionality during surgical procedures.

Segmented intramedullary plates use external alignment fixtures to enable minimally invasive screw placement, reducing surgical incision size and tissue damage.

A surgery control tool replicates spinal correction rod geometry to verify implant shape and size during scoliosis procedures.

Irregular female threading on bone plates prevents screw loosening through custom-fit coupling.

A locking screw features a shoulder larger than its neck to snap fit through plate apertures while maintaining axial stability.

Dual carriage tensioner equalizes wire force to prevent asymmetric bone pressure and damage.

Asymmetric designs with mobile central portions and peripheral stress shielding reduce facet joint degeneration rates.

Segmented shaft tracks guide implants through the disc space, resolving bulk obstruction of the surgeon's view.

Nested magnets inside bone screws align vertebrae without rigid rods, reducing rejection risk and preserving flexibility.

A depth limiter tool disengages from the driver at a predetermined insertion depth, preventing connecting member compression during spinal stabilization.

A disposable spinal guide device uses diverging tubular bodies and lateral support feet to stabilize positioning on vertebral anatomy.

Integrated BDFT screw and cage construct reduces tissue damage, blood loss, and operative time by eliminating separate pedicle screw placement steps.

Rotating turret angulation enables cortical trajectories while reducing muscle disruption.

An integrated implant delivery assembly combines a cutting broach with the fusion device to enable minimally invasive insertion through the sacroiliac joint.

Resilient leg members with inclined cam and locking surfaces engage a driven member bore, preventing loss in the sterile field during surgery.

A hip prosthesis releasing member transitions from a fixed to a released state under pre-determined strain, enabling non-invasive component adjustment.

A release mechanism applies divergent forces to splay bone anchor threads, resolving thread locking without exceeding torque limits.