Fasteners TRIZ Cases

Segmented mesh cage fixation stabilizes comminuted inferior poles while preserving the patellar vascular supply.

Segmented guides and barbed features stabilize retractors by preventing corridor intrusion.

Segmenting the anchoring body into distinct pitch zones matches cortical and spongy bone hardness to improve holding power.

A modular external fixator with self-tapping bone screws enables rapid assembly and stable fracture immobilization without specialized surgical tools.

A curved fracture plate design positions screw holes with oblique trajectories to enhance fixation strength in the humeral head.

A spinal screw features a sliding distal tip that extends within the shaft lumen to engage bone cortex.

A threaded conical pin anchors in cortical bone to balance system weight and fixation stability while reducing infection risk from invasive procedures.

A half pin uses a thin hydroxyapatite coating and variable thread pitch to stimulate bone growth.

Segmented elongated plate secures carpal bones with precise screw trajectories, minimizing bone resection while preserving wrist motion.

Segmented bone screw design pairs a hardened threaded head with a ductile shaft to resolve mechanical property conflicts.

A preloaded spring mechanism drives an actuation rod to expand or compress a vertebral implant during surgical insertion.

A bone plate uses a longitudinally sliding slider with transverse slots to enable lateral repositioning of the implant.

An inner reverse thread on a medical screw engages a removal jig to extract the device, reducing rotational force required during extraction.

Nested pin holders and longitudinal slots enable compact external orthopedic fixators that maintain stable bone fixation while reducing device bulkiness.

Axially constrained primary jaws in a universal wire driver secure surgical wires without bulky bearings obstructing the surgeon's line of sight.

Curved thread peaks prevent jamming from bone splinters and tissue contamination while maintaining secure implant fixation.

Angled compression surfaces in bone plates translate threaded heads to lock fractures, reducing screw count and surgical prominence.

Segmenting bone plates into specialized single-use kits eliminates repeated sterilization costs and complex inventory management.

Resiliently deformable interference portions lock bone screws at variable angles, resolving the trade-off between shear strength and tissue irritation.

A headless bone screw system uses a sleeve and locking mechanism to apply compressive force during fracture reduction.

Deformable locking inserts accommodate screws at variable angles, resolving the trade-off between fixation versatility and device complexity.

Adjustable blade assemblies create customized operative corridors to access the L5-S1 disc space while avoiding iliac vessel injury.

A bone screw features helical collecting channels that cut and capture bone material during insertion.

Segmented bone plate apertures let locking screws jump threads to adjust angles, accommodating unique bone fragment orientations.

A carbon fiber reinforced PEEK bone plate uses titanium screws to deform rounded interior walls, creating secure fixation at variable insertion angles.

Segmented guide and base elements align a Kirschner wire clamp to fix a bone plate, reducing handling time in tight surgical spaces.

Segmented cannulated bone screws use tapered shafts and threaded channels to prevent backing out while promoting bone growth.

Variable core diameter in the screw shank reduces insertion forces during bone penetration while maintaining secure anchoring strength.

Combination holes merge locking and compression apertures to translate the plate, reducing length while increasing hole density.

Adjacent threaded and non-threaded holes allow concurrent compression and locking screws, preventing angular loosening under dynamic loading.

Segmented bone fixation shafts use resorbable sections to immobilize bones, eliminating hardware removal surgery after healing.

A conical osteosynthesis screw uses distal cutting ridges for self-drilling and bone compression.

Threaded bone fixation element captures implant body between head ridge and stop surface, preventing relative movement during insertion.

Segmented plate housing zones guide screws to generate progressive translational movement, resolving precise compression control challenges in MTP arthrodesis.

Nested screws with engaging threads prevent fragment rotation, avoiding transverse splints that disrupt tissue and blood supply.

A twisted bone plate system distributes load through asymmetric screw hole inclination angles to ensure stable tibial fixation.

Elastomer-filled receiving holes provide elastic suspension that reduces stress risers and promotes callus formation.

Composite stabilization segments reduce infection risk and improve MRI compatibility through replaceable non-metallic footing members.

Spherical threaded holes eliminate bushings to reduce system complexity while maintaining polyaxial locking strength.

Tapered threaded regions in variable angle bone plates resolve the trade-off between angular flexibility and fixation reliability.

A porous tantalum metal screw with asymmetric threads and grooves enhances mechanical strength and bone tissue formation.

Conical fixation component heads deform composite bone plate apertures to create secure multi-axial locking.

Annular notches in the screw head lower radial compression forces, preventing bone fractures while maintaining mechanical strength.

A bone plate locking hole features a recessed collection cavity that captures metal shavings during screw insertion.

Threaded locking cannulas prevent bone plate misalignment by retaining position during screw insertion.

Universal bone plate screws use a conical head with a bearing annulus to lock in threaded holes or compress in non-threaded holes, reducing component inventory.

Segmented fixation holes with recesses divide threads into columns, allowing bone screws to engage at various angles while maintaining structural integrity.

An integrated pivot member within an orthopedic plate aperture enables variable angulation of surgical fasteners through a simplified locking mechanism.

Double helix screw threads reduce insertion turns while maintaining anchoring strength in weak bone areas.

An interrupted groove on the screw head creates discrete elevations that prevent self-centering during angled insertion into a bone plate.