Internal Osteosythesis TRIZ Cases

A thread transition zone enables CNC cutting of variable-pitch bone screws without cross-threading, lowering insertion torque and supporting longer screws.

Adjustable offset, swivel, and translation features track screw positions to guide precise spinal rod bending with less intraoperative delay.

Axial feed, full rod rotation, and perpendicular roller loading bend surgical rods accurately while reducing manual time, fatigue, and surface damage.

A widened thread inlet guides the clamping screw into coaxial seating, reducing tilting and thread damage in pedicle screw systems.

A reconfigurable arm assembly bends spinal rods into convex or concave contours with precise, incremental shaping during fixation procedures.

Automated feeding, braking, and bending with roller bearings shapes surgical rods precisely while avoiding notches that shorten fatigue life.

Segmented threads and transition cutting grooves help one fastener engage cancellous and cortical bone without thread damage or loosening.

A threaded post and geared sleeve convert rotation into stable lifting, enabling large expansion from a compact form with precise height control.

An open-lumen spinal rod bender lets surgeons reinsert, grasp, lock, and re-bend pre-shaped rods for more precise intraoperative adjustment.

A drill-tip bone screw reaches bicortical sacral purchase without a pilot hole, avoiding proximal cortical thread stripping and improving pullout strength.

An expandable vertebral support improves screw anchoring in compression fractures, reducing bone failure and screw backout.