Internal Osteosythesis TRIZ Cases

A robotic distractor system uses 3D modeling to precisely open the intervertebral disc space for prosthesis implantation.

Segmented contourable plate reduces installation time while restricting maxilla mandible movement.

A flexible filling member containing flowable material enables precise vertebral body insertion and extraction.

A bone screw combines a solid proximal shaft with an additive lattice distal tip to enhance mechanical fixation stability.

A surgical drill bit integrates distal and proximal cutting portions that rotate in opposite directions to form collinear bone holes.

A handheld navigation system determines medical device shape using integrated optical detection and data processing.

A detachable detection device with a movable bar indicates stabilization bar presence in pedicle screw tulip heads.

Interconnected linkages in an expandable bone implant restore vertebral height and prevent collapse, addressing limitations of current cement-only treatments.

A steerable cannula assembly uses an articulating outer cannula and a flexible inner cannula to enable precise directional control during medical procedures.

Implantable devices with dynamic compression portions transform between compact and elongated configurations to stabilize bone segments.

An integrated cross connector merges multiple anchors into one assembly, reducing component count while maintaining vertebral stability.

An adjustable aperture in the rod head allows surgeons to reposition fasteners, reducing inventory complexity while maintaining fixation strength.

An orthopedic driver indicator assembly detects lateral misalignment between a tubular shaft and guide pin via visual feedback.

Segmented threaded design with fenestrations allows self-tapping insertion, reducing radiation exposure during joint stabilization.

Barbed arrowhead heads resist rotational and axial migration, solving K-wire instability issues.

Post-operatively adjustable energy absorbers resolve rigidity trade-offs by dynamically matching natural joint compliance.

Image-guided tension adjustment prevents over-correction and tissue damage during minimally invasive spinal stabilization.

Enclosing unit prevents bone fragment jamming while expanding structures provide reliable support and controlled filler distribution.

Segmented bone fasteners with dual resilient members allow multi-axial orientation changes, reducing surgical complexity while maintaining fixation stability.

Orthopedic locking screw uses superimposed intersecting threads to extract broken screws without damaging surrounding bone tissue.

A radiolucent drill jig locates the axis of a blocking screw relative to an intramedullary device.

Alignment tabs on a spinal drill guide orient lumens for screw bores, resolving positioning difficulties during surgery.

A drill driver hybrid instrument combines bone drilling and screw driving functions into a single shaft to enable precise phalangeal fusion.

An integrated elastic buffer body within the screw head absorbs mechanical forces, enabling physiological spinal movements while reducing volume constraints.

A spinal instrument with embedded sensors measures vertebral load and orientation during surgery.

Segmentation and dynamics resolve the contradiction between adaptability and complexity in spinal fixation, enabling secure coupling of elongate elements.

A coronal sacroiliac joint implant uses a positioning arm to align an anchor element within a graft window for precise percutaneous placement.

Segmenting the head into a smooth spherical zone and threaded cylindrical portion resolves the conflict between polyaxial movement and locking security.

A placement instrument uses a rotatable key to grasp intervertebral disc plates for secure insertion.

A longitudinal slot allows adjustable support device positioning along the plate, balancing fixation stability with surgical accessibility.

Automated image processing determines spinal implant lengths from radiographs, replacing manual calculations that cause errors and delays.

Snap-on lugs on the implant use elastic deformation to attach to bone segments, eliminating complex plastic bending steps.

Segmented connecting members balance stability with natural movement, preventing adjacent segment degeneration.

A bone displacement system uses a ratchet mechanism to adjust and lock the position of bones relative to each other.

A transverse connector uses a threaded band slot and set screw to adjust length between rotatable spinal rod connection members.

A locking plate system with an intramedullary blade stabilizes bone fragments across a fracture site.

Segmented rod insertion and dynamic distraction correct vertebral displacement while minimizing surgical trauma compared to open fusion.

Intramedullary nail with proximal and distal locking mechanisms prevents backout during implantation.

Slide and saddle bodies enable lateral and rotational rod adjustment, resolving difficult surgical placement.

Preassembled coupling units eliminate intraoperative set screw insertion, reducing surgical complexity while maintaining rotational stability.

A cam mechanism mates with longitudinal and transverse grooves to lock an insert sleeve within an intramedullary nail cavity.

A bone anchoring device uses a pressure element to exert preload on the head, enabling adjustable angular positioning.

Segmented polyaxial screw stem and head assembly enables lateral insertion through a narrow tulip slot for compact surgical implant fixation.

Segmented threaded rods distribute bending moments away from driver junctions to prevent stress concentrations and device failure.

Automated system calculates maximum allowable pedicle screw diameter and length using 3D anatomical data to ensure biomechanical stability.

RF energy polymerizes conductive bone cement surfaces to control fill geometry, preventing leakage risks during vertebral height restoration.

Optimized polymer ratios enable injection through fine needles below 65°C, forming implants with 0.1 to 5.0 MPa modulus to prevent expulsion.

Modular fastener assemblies re-establish anatomic spacing while reducing system complexity and manufacturing costs.

Nested movable clamps enable precise rod orientation, resolving limited positioning in spinal surgery.