Internal Osteosythesis TRIZ Cases

Threaded locking cap with varied geometries locks spinal rod to resolve rigidity and installation trade-off.

An adjustable spinal distraction system uses magnetic actuation to correct scoliotic curves while maintaining vertebral flexibility.

An implantable vertebral frame establishes precise alignment before fusion, reducing surgical time and nerve damage risks.

Segmented tube assembly distributes corrective forces across multiple bone fasteners, reducing breaching risk during spinal derotation.

A photopolymerizing catheter cures a light-sensitive liquid to stabilize fractured bone while housing an expandable portion for additive release.

Fluoroalkenes replace ozone-depleting agents in foam insulation, maintaining thermal efficiency while reducing environmental impact.

A single instrument tensions and locks cerclage cables against periarticular fractures, eliminating multiple tools while preventing cable slack.

A bone plate features a through hole with three straight or convex sections to receive bone screws at variable angles.

Multi-surface cord clamping in vertebral implants distributes tension to prevent screw migration and reduce construct stress.

Articulated arms align rod receiving portions along spinal curvatures without distorting hooks, reducing surgical time and complications.

Variable force springs and elastomers guide patella tracking across full knee motion, reducing femoral contact pain.

A polyaxial pedicle screw uses a segmented head with cylindrical and spherical portions to enable secure angular positioning within the housing.

Glass fiber composites resolve rigidity brittleness trade-offs, enabling durable implants for high-movement joints.

A compliant hip fixation element slides within a support member to distribute mechanical loads across the femoral head.

A polyaxial adjustable cross member rotates to match patient anatomy and locks at a predetermined orientation.

A retaining driver system uses a cam-actuated element to engage bone screw undercuts for secure mechanical retention.

Porous titanium foam securement disk with radial slots accommodates fasteners of varying lengths for precise orthopaedic implant alignment.

A prosthetic intervertebral disc uses a compressible core member to replicate natural biomechanics.

Interlocking gears in the blocking mechanism prevent bone anchor backing out under spinal rotational forces.

Spring-biased tube grips pedicle screw head to eliminate relative movement between patient and anchor, ensuring stable tissue retraction.

Biaxial hinge blocks enable locking sleeves to swivel for precise pin control, resolving versatility and complexity trade-offs.

Optical tracking array captures images of spinal landmarks to provide real-time 3D visualization during minimally invasive procedures.

A patient-specific alignment device fixes acetabular and iliac units to bone via a rigid bridge.

Inner and outer balloons dilate sequentially to prevent side-specific expansion, correcting misalignment during spinal stenosis treatment.

Ultrasonic vibration fluidizes a polymer pin inside a bone screw, ensuring reliable cement distribution without manual pressure.

A dynamically adjustable distal end enables precise interbody placement while allowing easy disengagement to prevent anatomical damage.

Automated bending device replaces manual techniques to achieve ±3 degree accuracy, reducing surgical time while maintaining sterility during spinal corrections.

A transcortical bone fusion plate secures the tibia and talus through a longitudinal slot to stabilize the joint.

Nesting cranial plates in kerf grooves reduces palpable deformities and patient discomfort.

A translating polyaxial bone screw assembly uses a biasing element to apply tension between the yoke and screw head.

Segmented access and nested delivery reduce nerve injury risks while enabling minimally invasive posterior spinal fusion.

A unitary surgical ratchet tool integrates a spring-loaded pawl and handle to enable precise torque application.

An automated growing rod device with inductive power and motorized drive assemblies enables non-invasive spinal curvature correction.

Segmented monocortical pins provide stable fracture fixation without penetrating the medullary canal, reducing infection risk and surgical complexity.

A flexible tube guides a rectilinear pin through a sheath to position the implant accurately within bone tissue.

A navigated cannula system creates voids in facet joints for bone graft placement.

A facet screw delivery system employs a bent guide tube to orient locking screws, reducing tissue disruption during spinal fusion.

Segmenting the internal nail from the external frame reduces infection risks and surgical complexity inherent in traditional fixation methods.

Integrated cable tensioner applies circumferential compression to secure a compression plate against bone.

A titanium wire assembly device replicates healthy bone biomechanical forces through an actuator-driven bowed configuration.

Curved overlapping rails stabilize anterior and posterior columns while permitting physiological flexion to prevent adjacent level degeneration.

A spinal tether system uses a ratchet mechanism to adjust tension between fasteners, correcting deformities without fusion.

An intramedullary fixation assembly with angled proximal and distal members delivers joint compression through interference fit.

Fixed 6-degree caudal holes and locking plates stabilize the spine while windows maintain surgeon visibility.

Pre-operative and intra-operative measurements of neural foramen dimensions guide interbody implant selection to prevent nerve root impingement.

Fiber-reinforced polymer bone plates integrate radiopaque markers to guide screw placement, reducing stress shielding while maintaining clear X-ray visibility.

Segmented connectors with extendable portions anchor rods away from nerves, stabilizing vertebrae in small animal cervical spines.

Segmented shaft and sleeve eliminate screw head interference, improving compression.

Segmented interspinous spacer trays enable lateral packing of bone growth substances while maintaining structural integrity between adjacent vertebrae.