Internal Osteosythesis TRIZ Cases

An assembled vertebral body system uses nested connecting elements to provide stable cervical spine reconstruction.

Rib hook devices attach to patient ribs to distribute spinal correction forces, preventing pedicle screw pullout and lamina hook failure.

A threaded universal shank head with helical threads enables bottom-loading into receiver sub-assemblies.

A segmented intramedullary fixator provides stable mechanical support for proximal humerus fractures using expandable anchoring structures.

A spinal reducer integrates a clutch mechanism with pawls and a locking lever to attach extension devices.

A vertebral fixing system uses adjustable locking means to constrain flexible ligature strands within a connecting part passageway.

A laminar hook spring connector element supports adjacent vertebrae with adjustable stiffness and controlled distraction.

Translating arms with ratcheting mechanisms lock blade positions, resolving the trade-off between flexible tissue access and structural stability.

Tensioned compression staples exert continuous force across bone fragments to maintain anatomical alignment during healing.

Flexible slide expands center channel to accommodate vertebral implants, reducing tissue impingement during percutaneous posterior insertion.

Segmented interlaminar devices maintain preselected vertebral spacing while preventing overall spinal column instability.

A bone treatment system shaft includes a gas discharge portion to remove air from the flow path before filling the balloon with bone material.

Segmented barrel assemblies with dynamic expansion mechanisms withstand compressive, torsional, and shear loads to treat degenerative disc disease.

Segmented components separate the locking sleeve from the rod presser, reducing tissue trauma during bone screw installation.

A bone nail device integrates a drive motor and planetary gear within an inner tubing to enable sliding axial movement.

An intermediary washer prevents tissue damage from screw penetration while enabling controlled bone fusion strength.

Axially translating valve seals biomaterial injection pathways, preventing air entry and ensuring controlled expansion of expandable spinal implants.

A targeting system adjusts hole positions via an adjusting element to compensate for bone nail bending during implantation.

A modular implant driver cartridge system houses multiple surgical instruments and implants for sequential use.

Offset rails on the guide assembly align surgical instruments, resolving vertebral preparation difficulties during spinal disc replacement.

A cam coupling rod reducer uses a lever mechanism to guide spinal rods into pedicle screw assemblies with precise tactile feedback.

Customized shape memory alloy implants reduce surgical time and tissue damage by self-aligning bone fragments during thermal hardening.

Low-friction bushings reduce metal particle deposition and tissue irritation while maintaining structural support.

A femoral neck prosthesis anchors in the bone using a hybrid thread and cement system.

Modular anchor assemblies enable stable multi-level anterior column engagement via lateral access, eliminating patient repositioning.

A tensioned strap stabilizes adjacent vertebrae, reducing adjacent segment degeneration risk from rigid fusion.

Segmented shank and head components with a cylindrical interface enable modular variability while a pre-installed snap ring provides automatic secure locking.

A segmented intramedullary nail uses a rotating distal portion to restore joint range of motion while maintaining structural stability.

A pivoting osteotomy instrument uses hemispherical pockets to engage screw head bearings, enabling orthogonal rotation of the tool legs.

A surgical instrument shaft with an actuator moves spinal implants along a longitudinal axis for precise positioning.

A conical split ring expands to receive a hemispherical head within a tubular shaft for secure bone anchoring.

A surgical instrument uses a planetary gear system to multiply input rotational force for precise structural element removal.

Segmented chambers enable independent head and rod locking, resolving adjustment precision limits in polyaxial spinal stabilization.

Segmented rods with spacer nuts stabilize vertebrae while allowing surgeons to maneuver around nerve roots.

A telescopic connection bridge uses a rack and pinion mechanism to adjust bone segment positions.

A powered surgical tool uses a counter-torque sleeve to balance rotational forces from the motor.

A U-shaped distractor rotates within the disc space to restore vertebral alignment during spinal implantation.

A locking cap dispenser uses a magazine to load caps and a barrel for sequential alignment.

Segmented humeral and ulnar components allow intraoperative constraint selection, resolving wear issues from polyethylene bushings.

Pivotally rotating S-shaped members lock between spinous processes, resolving sizing difficulties and preventing component migration without adhesive bonding.

Perpendicular anchoring resists rotational forces, preventing migration and reducing revision surgery.

A reusable surgical implant uses a flexible Nitinol core enclosed in biologically inert silicone to conform to anatomical shapes.

An elastic band secures a pedicle screw shaft within a receiver base, reducing vertebral preload during manual assembly.

A posterior fusion implant uses fixation elements to engage sacral bone while a cavity holds growth material.

A spinal plate bender uses a lever and linkage to drive an anvil for precise plate shaping.

Segmented arms insert obliquely into drilled holes to cover openings, preventing tissue filling and external damage.

An actuator extends members to disengage locking clips, allowing the tool to push the stuck reducer off the tulip during extraction.

A spinal connector assembly uses a threaded lock member to compress implant members within a washer channel for secure angular orientation.

Tapered allograft dowel prevents migration and fracture while promoting bone in-growth for stable facet joint fusion.

Mechanical aiming guide aligns nail and plate openings to secure fracture fragments without fluoroscopy.