Internal Osteosythesis TRIZ Cases

Modular segmental devices maintain spinal mobility while correcting scoliotic curvature without rigid fusion.

A spinal compression device uses integrated sleeves and a linear drive to adjust pedicle screws for precise vertebral positioning.

A gas-permeable plastic hollow implant delivers oxygen and removes carbon dioxide via internal fluid flushing.

Oblique draw holes and wires apply compressive forces across tissue discontinuities, resolving the trade-off between mechanical stability and dynamic loading.

Dynamic flexible blades provide effective disc space distraction while protecting implants from tissue contact during insertion.

Square cross-section fastener reduces area moment of inertia to increase pull-out strength and fatigue performance in orthopaedic applications.

Circular ring lattice structures in 3D printed spinal implants prevent vertebrae subsidence by dispersing pressure and impact forces.

Statistical atlas defines attachment sites on a mass-customized femoral base plate to stabilize inertial measurement units and avoid prosthetic impingement.

Segmented clamping mechanism rotates stabilization members to align with bone anchors, reducing tissue damage during minimally invasive spine surgery.

Diagonal linking elements intersecting at the median sagittal plane maintain physiological angular clearance while stabilizing vertebrae.

Undercut holes with resilient clips permit polyaxial movement while perimetral grooves prevent fastener back-out.

A hip joint device inserts through a pelvic bone hole to provide an artificial acetabulum surface.

A collapsible anchor with foldable wings expands laterally to realign the spine.

A bone plate hybrid device uses dowel channels and locking screws to secure bone segments.

Oblique trans-axial stabilization constructs extend between adjacent vertebrae to maintain dynamic tension and preserve physiological motion.

Segmented plates with a pivot device apply stable compression to accelerate bone healing.

Pyramidal awl tip drills bone while helical threads cut profiles, eliminating separate drilling and tapping steps.

A prosthetic disc uses rotatable inserts to adjust fastener angles for precise screw placement.

An anterior ankle approach system forms a stem hole using broaches to insert a coupled stem implant through the anterior cut.

A spinal connection device uses a rigid bridge to nest laterally against existing coupling devices for secure attachment.

An intramedullary nail fixation guide provides precise orientation for inserting nails, reducing soft tissue irritation while maintaining joint stability.

Biasing mechanisms prevent splaying of extension tube arms, ensuring stable attachment to vertebral anchors while allowing insertion of additional instruments.

Oval geometry expands lateral damping capacity while minimizing antero-posterior bulk, resolving tissue damage risks during surgical placement.

Adjustable linkages resolve fixed-angle slot misalignment, enabling series coupling for spinal column straightening.

Pivoting arms compress spinal rods into bone screws while a pawl mechanism locks the position for precise alignment.

A bone plate system uses a rotary tensioning device to tighten a surgical cable around bone portions for stable fixation.

An asymmetric movable head restricts angulation in a perpendicular plane to stabilize the screw against gravitational forces during spinal surgery.

Segmented self-cutting rods penetrate fascia and muscle to reduce surgical trauma and time compared to conventional spreading methods.

A bioresorbable screw layer initially locks angular orientation then degrades to enable controlled micromotion.

A resilient retainer snaps onto a shank upper portion, resolving rod positioning challenges in polyaxial bone screw assemblies.

Oscillating rotation of a bi-directional drill point screw cuts undulating spinal bone surfaces, reducing surgery time and insertion complications.

Flexible transition segments absorb force and allow controlled movement to reduce stress on the proximal instrumented spinal segment.

A movable inner member restricts screw head rotation to prevent component separation in orthopedic fixation assemblies.

Positioning guide restricts implant migration toward less dense sacrum during dorsal approach, ensuring stability in ilium.

Segmenting the guide member from the rod pusher allows axial translation without rotation, reducing surgical trauma during rod insertion.

A telescopic intramedullary rod compresses the ankle joint for fusion and corrects limb length discrepancies through distraction.

Radiopaque ghost rings on a mandrel enable precise needle placement under fluoroscopy, reducing clinician radiation exposure and tissue trauma.

Expandable petal mechanism in self-locking bone screws enables dynamic translation control within spinal fixation plate slots.

Sliding anchors on a flexible rod maintain spinal stability while preserving physiological disc motion and accommodating skeletal growth.

A spinal screw fixation device uses a three-point fixed structure to create a 3D locking effect that prevents screw loosening.

Nested tubes enable non-invasive post-surgical alignment correction, avoiding invasive revision surgeries for curvature changes.

Automated calculation of rod shape from captured images resolves reliance on surgeon experience for precise curvature correction.

Pre-formed locating grooves on connecting plates enable quick alignment of a curved vertebral plate, reducing tedious manual positioning during surgery.

A modular reverse shoulder implant uses a separable fracture epiphysis component to attach sutures for rotator cuff repair.

Transverse through-openings in an intramedullary stem accommodate subsidence while resisting tensional and torsional loads.

Segmented pediatric plates use distinct metaphyseal curvature and diaphyseal fixation to prevent epiphyseal violation while maintaining rigidity.

Spring-loaded clips engage anti-rotation flanges on fasteners to prevent ejection while maintaining controlled compression for fracture healing.

A band clamp assembly uses a cam mechanism to tighten a flexible band around vertebral bodies for direct spinal fixation.

Segmented facet prostheses eliminate arthritic pain by extracting diseased tissue while preserving healthy bone structure for stable fixation.

An adjacent guide assembly allows precise bone section repositioning without thick plates that cause stress shielding.