Internal Osteosythesis TRIZ Cases

Modular energy absorbing elements reduce joint surface load and pain by mediating mechanical interactions without invasive replacement.

Ultrasound fluidizes polymer cement through an implant housing to resolve uneven distribution and improve anchoring reliability.

An oblong cross-section and radiopaque markers on a PEEK spinal rod resolve the trade-off between polymer biocompatibility and intraoperative imaging clarity.

An internal support blocks implant rotation, preventing sticking in the tube during extraction.

Segmented clamps pivot and slide to secure non-parallel rods, reducing surgical complexity.

A transverse connecting assembly uses rotatable cam members to shift spinal rods radially, eliminating set screw exposure risks.

A spinal cross connector uses rod-engaging members to lock fixation rods within an elongate body.

Merging insertion and removal functions into one instrument reduces part count, lowers infection risk, and cuts manufacturing costs.

Segmenting the anchor from the connector via a spherical intermediary resolves size conflicts, enabling stable angular placement in soft bone.

Integrating a rod with implant receivers eliminates complex intraoperative assembly steps, reducing surgical time while maintaining precise alignment.

Segmented rigid housing with nested protective barriers prevents bacterial contamination while maintaining symmetrical pressure on pin sites.

Divergent screw placement resists antero-posterior bending forces and rotational instability, enabling immediate full weight-bearing.

Slotted collet creates three-point bending condition to frictionally retain polyaxial spinal screw angular position, reducing misalignment risk.

A gear-driven spinal surgery tool isolates counter-holding force from the rod path, preventing flexible rod deformation during high-torque fixation.

Segmented fixation devices restore disc height and maintain natural spinal alignment by enabling controlled axial distraction without lateral translation.

Segmented derotator members with ball joints enable secure engagement of misaligned vertebrae, correcting complex spinal curvature.

Segmented uncinate joint stabilizers resolve nerve impingement while preserving intervertebral disc movement, avoiding bulky open-access implants.

A detachable broach head integrates cutting teeth and osteo anchoring features into a single component.

Magnetic field gradient localization replaces fluoroscopy to align intramedullary nails, reducing radiation exposure and surgery time.

Segmented humeral components with integrated countersinks secure fracture fragments, resolving instability from poor bone quality.

Segmented tower assemblies enable direct rod insertion without removal, reducing surgical complexity during spondylolisthesis correction.

A pars interarticularis clamp applies compressional force to stabilize vertebral fractures while maintaining joint mobility.

Segmented tibial and talar supports with a compressible absorber reduce contact stresses to alleviate osteoarthritis pain without restricting joint mobility.

Undercut thread surfaces resist multi-axial forces and off-axis loading to prevent fastener loosening during healing.

A composite orthopedic screw uses a softer outer polymer layer to minimize tissue irritation while maintaining structural stability.

Integrated tool delivers implant and bone material simultaneously, reducing procedural complexity while maintaining precise placement.

Segmented bone screws bend through curved intramedullary canals, reducing infection risk while maintaining rigid fixation strength.

Spring washer provides frictional retention for polyaxial bone screw yoke, enabling high angulation while maintaining pull-out strength.

A rotating saddle aligns a spinal rod within a tulip head to enable secure locking via a threaded cap.

A slotted washer captures and compresses a K-wire to stabilize bone fragments during orthopedic surgery.

Segmented implants with self-deploying wings reduce tissue trauma while maintaining foraminal spacing.

Interlocking an intramedullary nail with a buttress member prevents screw migration and reduces soft tissue damage during pertrochanteric fracture fixation.

A modular orthopedic fixation assembly uses a separate screw extender instrument to track bone orientation during surgical placement.

A saddle within a tulip mates with a spinal rod using a concave force distributor and set screws.

Rotatable targeting guide aligns screw trajectory with post aperture center, resolving fixed fixation limitations.

A talar implant stem uses lateral fins and a spline to constrain rotational, anterior/posterior, and medial/lateral movements within the talus bone.

Angle adjuster guide allows lateral prosthesis insertion to bypass blood vessels and reduce tissue disruption.

Asymmetric helical threads with angled undercut surfaces improve fixation strength and load sharing under multi-axial loading conditions.

Merges endoscopic components with a cage handle to replace indirect X-ray imaging, enabling clear monitoring of nerve proximity during insertion.

A cervical cage with an expandable clip and draw bar restores natural curvature through in situ adjustment, reducing surgical time.

A hollow bone screw pin features an internal indentation for screwdriver access to enable post-implantation height adjustment.

A clip-on reducer tool assembly uses a lever mechanism to align and seat spinal fixation rods within implants.

Angular displacement of claw clamps on a C-shaped shaft distributes force across the sternum, preventing wire-induced bone cutting and instability.

A deformable magnesium alloy implant restores vertebral height and prevents cement leakage by acting as an intermediary scaffold during injection.

A pedicle screw head includes a support unit connecting sidewalls to secure a rod during lateral insertion.

Segmented bone implants stabilize fractures by bending within the medullary canal, reducing surgical exposure time and infection risk.

A ramped channel guides a wire to self-tap into bone, eliminating locking hole misalignment during insertion.

A spinal fixation holding device uses locking pieces to engage internal features of the tool head.

Barbed nitinol intramedullary device maintains compressive load over time, preventing dissipation as bone relaxes and remodels.