Internal Osteosythesis TRIZ Cases

A sternal closure band uses a threaded rod to apply compressive force for bone immobilization.

A surgical instrument uses tubular members and pivotable grasping components to actuate translation for precise spinal implantation.

A humeral nail incorporates a stabilizing element to absorb mechanical loads at the fracture site.

Dual drive screws pivot plates to alter vertebral engaging surface distance, accommodating complex disc geometries without multiple implant sizes.

Color-coded threads on a flat textile implant enable visual identification of face orientation, preventing tissue abrasion from twisted loops.

Spring-loaded holding member arms engage a spinal implant receiving part to reduce instrument complexity and simplify assembly.

A head-to-head cross connector uses polyaxial bone screws to secure connecting rods with multiple degrees of freedom.

Multilayered porous screw surface enables bone cell ingrowth, preventing long-term loosening and ensuring stable spinal fixation.

A minimally invasive spinal fixation system uses a rod with an anchor head and guide mechanism for precise vertebral alignment.

A segmented insertion assembly delivers an expandable elastomeric envelope to replace degenerative disc tissue, reducing trauma to surrounding structures.

A bone anchoring element uses a hollow-spherical holding element to engage the screw head for flexible positioning.

A composite implant material uses dual resorption rates to create porous structures that support bone ingrowth and mechanical strength retention.

Pivoting saddle components resolve rigidity adaptability contradictions by allowing controlled rod orientation while maintaining structural strength.

An expandable intramedullary cage member deployed within the humeral head prevents varus subsidence and malunion in proximal humerus fractures.

A coupling base with elongate members attaches a spacer and plate for single-step implantation.

Segmented aiming components resolve alignment precision versus instrument complexity trade-offs in fracture stabilization.

Shape memory alloy springs maintain pseudo-elastic compression during ankle fusion, preventing stress loss from bone resorption.

A dynamic spinal stabilization rod uses an integral flexible section to allow controlled vertebral motion while maintaining segmental stiffness.

A telescoping intramedullary nail uses rotating outer magnets to drive an inner magnet and threaded shaft for axial length adjustment.

Scissoring elements attached to plate members stabilize the posterior column without pedicle implantation, preserving natural spinal movement.

A rotating rod connector device secures spinal rods using interlocking clamps and grip expansion grooves.

A dynamic external fixator uses a ring element and adjustable devices to enable multi-axis movement of k-wires.

A bone anchoring device uses a one-piece pressure element with a flexible portion to clamp the head within an accommodation space.

A rotatable bone plate with an integrated rod allows flexible positioning and locking for precise vertebral stabilization.

Adjustable laminoplasty plates secure elevated lamina portions to increase spinal canal area while preserving structural integrity.

Segmented connector block accommodates screw heads and rods simultaneously to enable secure fixation without disassembly.

An orthopedic implant uses inclined archways to secure perpendicular screws, resolving pull-out risks in low-quality bone.

Segmented plates and a transverse rod provide rigid multi-planar fixation to prevent secondary foraminal stenosis.

A spinal alignment system generates rod bending instructions using spatial tracking and imaging data.

An expandable anchor body compresses bone segments to stabilize fractures through minimally invasive insertion paths.

A segmented insertion tool pivots a vertebral rod via a pusher mechanism, reducing tissue damage and enabling longer rod placement.

Bone plating system uses a cross-connector and targeter device to secure multiple bones.

A locking intramedullary nail uses a form-fitting support body to secure receiving elements for precise screw alignment.

An inner tulip translates longitudinally inside an outer receiver to adjust z-axis position, preventing screw pullout during fixation.

Deformable rings in a dynamization device provide controlled axial micromotion, resolving the trade-off between frame stability and therapeutic instability.

A surgical retractor anchored to bone anchors via anchor extensions creates a self-retaining access channel between vertebrae.

A modular spinal plate uses a multi-axial protrusion to pivot and rotate bone anchoring screws.

Reducing the thread angle to 5°–25° minimizes lateral force transfer and prevents bone anchor deformation during tightening.

A bony segment fixation system merges guide wire and permanent plate functions into a single temporary element for secure stabilization.

A captive elevator in the inserter lifts superior endplates for incremental wedge insertion, providing tactile feedback to prevent over-expansion.

Bayonet connector enables secure cement injection into osteoporotic bone, minimizing leakage and enhancing fixation stability.

A surgical connection device uses compression and traction arms to apply controlled forces for dynamic spinal stabilization.

A handheld closing device uses a rotating tightening member and pivot lever to secure bone closure straps.

A surgical fixing device couples set screws to polyaxial screw heads using a fork and spring mechanism.

Visual indicia on a rotatable actuator confirm bone fastener engagement, resolving limited feedback in minimally invasive procedures.

Ridged undersides and notched screw heads prevent loosening while protecting delicate anatomical structures.

A cervical plate uses rhenium-enhanced alloys to achieve thinner profiles while maintaining structural integrity.

Imaging-guided guide pins target high-density sacral bone to resolve suboptimal mechanical stability in SI-joint fusion.

An interchangeable orthopedic blade uses a threaded internal screw nested within an external sleeve to advance fixation into bone.