Internal Osteosythesis TRIZ Cases

Segmented locking caps and nested set screws reduce connector height while maintaining strong clamping force for spinal fixation.

Segmented components and an intermediary extension allow the clamp to adapt to non-parallel rods, reducing surgical complexity.

Segmented laminoplasty plates elevate lamina portions to expand spinal canal area while maintaining postural stability through integrated triangular fixation.

Hydraulic pressure moves a piston inside the implant to change vertebral spacing, reducing stress on adjacent components.

Rotating tulip head and washer segments resolve screw loosening by allowing dynamic orientation adjustment during spinal fixation.

Asymmetric T-shaped recesses in the nail aperture engage single screws to prevent rotation while allowing controlled sliding compression across bone fractures.

A polyaxial bone anchoring device uses a deformable pressure member to clamp the head and rod sequentially with a single tool.

Mobile clamping surfaces secure a braid on an intervertebral spacer, enabling lateral insertion without vertebral distraction.

Embedded wires or magnets in an intramedullary nail produce electromagnetic fields that locate bone anchors without radiation, reducing procedural time.

Pre-securement of an insert into the receiver limits vertical movement, enabling multi-planar pivoting motion while maintaining locking reliability.

Extenders project anatomic points outside the body to facilitate accurate implant configuration through small incisions.

A surgical tool adaptor uses a clutch mechanism to lock or release K-wire movement relative to the handle.

Nested spring and blocking member in spinal plates prevent fastener loosening from vibration while maintaining structural integrity.

Adjustable saddle pivots within receiver to align connecting element, reducing stress concentrations from rod contouring.

Integrated expansion mechanisms lock the nail within the bone canal, eliminating additional incisions and reducing infection risk.

Structural encoding embeds readable indicia in a spinal implant, resolving poor record-keeping and medical errors from fragmented tracking systems.

An adjustable laminoplasty fixation device uses sliding components to set bone engaging portion spacing.

Universal connector accommodates varying rod distances through dynamic locking, reducing inventory needs and surgical complexity.

A framed bridge device fixes multiple vertebrae into a single moving reference frame for surgical navigation.

A bone plate with a movable part and displacement mechanism adjusts fracture alignment externally.

Segmented stem and bearing components interlock via anti-rotation features, eliminating precise hole drilling requirements.

A surgical retractor with stiff biased blades displaces the psoas muscle posteriorly through an oblique lateral pathway.

A spinal prosthesis tether uses a compliance element to adjust coupling distance between reference points on the spinal segment.

A polyaxial bone screw assembly uses a two-part retainer and compression insert to capture the shank head within the receiver bore.

An auto-resetting mechanism repositions an attachment indicator to a non-indicating position after tulip head insertion.

Axially sliding spinal rods facilitate vertebral derotation, resolving rigidity limits that hinder natural motion.

Segmented positioning casing prevents screw deformation during surgery while ensuring precise alignment with the spine curvature.

Complementary curvatures in the tulip connector and slide clip allow precise angular adjustments, eliminating material fatigue from bending rods.

Dynamic stabilizing elements preserve physiological mobility while reducing stress on anchoring sites caused by rigid fixation methods.

Adjustable locking shims secure retractors to various screw sizes, restoring tactile feedback while minimizing soft tissue trauma.

A vertebral fusion device employs flexure members to expand structural components and distract end plates upon actuation.

A spinal stabilization system uses a bone screw with a transitionable head to secure a rod within a plate slot.

Splined coupling sleeves manage torque surges during set screw installation, preventing disengagement and maintaining alignment precision.

Nested spacer members expand via angled surfaces to resolve the contradiction between small insertion profiles and required vertebral spacing.

An implantable reservoir pumps lubricating fluid through integrated channels to coat artificial joint surfaces, eliminating percutaneous injection injuries.

Cortical bone spacer with depressions limits flexion and extension while preventing slippage without promoting bone fusion.

A bone displacement system uses a curved rail to move a distal body relative to an anchoring portion for precise alignment.

Circular knit metal and resin implants conform to irregular bone fragments, reducing surgery time while preventing stress shielding.