Internal Osteosythesis TRIZ Cases

An expandable anchor engages the sacrum cortical wall to secure fixation.

A percutaneous spinal rod insertion tool uses a pivot shaft to rotate a retaining member for precise rod positioning.

A segmented femoral plate fixator uses a hinged proximal-distal connection to adjust cephalic screw angles during implantation.

Angled ulna plate realigns canine elbow bones, correcting misalignment to restore joint function without complex replacement surgery.

Segmented collet slots create frictional interference fit with bone screw head, resolving tulip head orientation instability in spinal fixation.

Working channel with alignment means mates implant inserter tines for precise allograft placement in sacroiliac joint fusion.

A spinal plate assembly uses a radially deformable split ring to lock bone screws within an annular groove.

An intervertebral spacer uses a cam mechanism to rotate about a pivot point, resolving placement precision and rotation control trade-offs.

Preset breaking lines allow intraoperative depth adjustment, reducing manual shaping risks.

A posterior intervertebral joint assembly restores vertebral motion by assembling modular supports in situ, avoiding anterior vascular structures.

Stacked plates with transverse openings enable multi-angle wire insertion, resolving parallel-only constraints and enhancing osteosynthesis stability.

Gear mechanism continuously adjusts plate separation to relieve spinal cord compression while maintaining motion.

Cannulated implant device with K-wire guide enables precise metatarsal head alignment and micro-adjustments during bunion surgery.

Flexible rod and magnetic leadscrew adjust cable tension to realign vertebrae, reducing fatigue failure risk from rigid implants.

Electronic sensors replace visual markings on gauges, eliminating reading errors and improving screw length selection accuracy.

A bone plate connects to an angled intramedullary blade via a bone anchor, creating a rigid truss structure for fracture fixation.

Sidewall openings let longer rods pass laterally, reducing incisions and tissue damage during minimally invasive fusion.

Cutting fins roughen bone tissue during insertion to initiate healing response, addressing limited long-term stabilization in degenerative joint disease.

Expandable spinal implant uses swivelable couplings to translate upper and lower portions, accommodating lateral shifts during pedicle lengthening.

Threaded interphalangeal fusion implant with serrated fins achieves precise anatomical alignment and stable fixation, resolving deformity recurrence risks.

A spinous process stabilizer uses adjustable separation bars and a single-action clamping feature to secure adjacent vertebrae.

Adjustable talar repair jig accommodates medial and lateral comminution patterns to reduce non-union risks.

Deformable central rod segments slide within end segments to correct curvature without fusion, reducing reoperation frequency.

A segmented pelvic bone plate uses angled apertures and a flexible flap to conform to arcuate bone surfaces.

A polyaxial pedicle screw uses a pivot bearing to support the pressure piece against the fork head arm.

A wrist fusion device fuses the joint using a spike-shaped second section inserted into the third metacarpal cannula.

A robotic surgical system provides haptic feedback to guide tool trajectories during spinal procedures.

Sliding armatures adjust intervertebral implants post-insertion, resolving misalignment risks during minimally invasive spinal fusion procedures.

Sleeve-like insert piece enables wide pivot angles in polyaxial bone anchoring devices, resolving design complexity and fixation efficiency trade-offs.

A compressible cervical plate uses a spring to bias plate segments for active compression.

A polyaxial spinal plate uses a movable carriage to position screws independently of the plate body.

Segmented coupling assembly reduces tissue damage by allowing percutaneous placement and adjustable rod stiffness.

A spinal manipulation device uses a floating auto-locking pivot to adjust the arc of rotation for precise surgical positioning.

Segmenting the working ends into orthogonal force vectors prevents bone material leakage and maintains access to adjacent sites.

A curable polymer-filled balloon conforms to disc geometry, preventing migration and leakage while restoring intradiscal pressure.

Segmented anchor and compression implant stabilize spine without disc removal, reducing tissue disruption and infection risk.

Segmenting the acetabulum surface allows insertion through a small incision, resolving the conflict between anatomical coverage and minimally invasive access.

A low friction rod persuader uses a rolling camming interface to transform rotational drive motion into linear shifting of spinal fixation rods.

Segmented reduction clips with sliding mechanisms reduce installation time by eliminating extensive threading in minimally invasive procedures.

A spinal connector enables coronal adjustability for precise implant alignment.

Segmented cells expand in a predetermined plane to correct vertebral shape while reducing pressure on the cortical shell.

Fusion proteins localize IL-15 activity to PD-L1 expressing sites, resolving systemic toxicity while enhancing antitumor efficacy.

A polyaxial bone anchor uses a V-shaped housing aperture to define variable angulation limits for spinal fixation screws.

Adjustable housing secures a spinal rod to an occipital plate via interlocking surfaces, resolving complexity in custom-tailored cervical fusion systems.

Flexible connection members apply tension between vertebral anchors to correct spinal deformities, resolving the stability versus flexibility trade-off.

An open dorsal adjusting connector uses a collet and nut system to secure spinal implants.

Segmented bone screws allow separate rotation of threaded pieces to control compression, reducing tissue disruption during minimally invasive fusion.

A sacrum anchor assembly uses a polyaxial link to connect screws and distribute force evenly across the vertebral structure.