Internal Osteosythesis TRIZ Cases

A releasable split tower locks to a bone-anchor head, then detaches to improve visualization and limit material loss.

Deformable members let this bone plate provide internal pre-tensioning and controlled micro motion to support callus formation during fracture healing.

Four screw holes in a quadrangular layout help the bone plate fit small tibias while preserving fixation and reducing surface gaps.

Flex lines and a conforming base plate help secure bone flaps on young children's thin, irregular skulls despite limited tensile strength.

An elastomer seal with a flexible buffer contains wear debris while allowing implant components to move and reducing seal wear.

A subcutaneous ratchet device enables controlled, incremental lengthening of small bones without bulky external scaffold arrays.

Split-ring anchors elastically lock into mating recesses, helping band clamp implants prevent disassembly during spinal fixation.

An offset implant joins intramedullary and extramedullary bone sections to correct hallux valgus through minimally invasive fixation and reduced scarring.

An abutment deformation region adapts fixation to varied rod diameters, distributing force through surface contact to limit loosening and corrosion.

Medialized PLIF exposure uses independent retractor blades and a dual translating rack to reduce muscle stripping while preserving spinal access.

Brackets suspended on spinous processes let correction members slide with growth, avoiding pedicle fixation and repeated lengthening surgery.

An expandable socket collar and tension member add provisional friction to hold the yoke before a spinal connecting rod locks the screw.

Separate nail placement can create alignment errors during arthrodesis; an integrated calcaneal prosthesis supports secure fixation in one unit.

Rigid cranial clamps can irritate the dura and scalp; a thin flexible plastic mesh conforms to skull curvature for stable bone flap fixation.

A lever-operated handle extends and retracts the stylet, confirming bone anchor trajectory before insertion while limiting skiving.

Peripheral arms position navigation cameras and surgeon displays, improving visibility and reducing navigation disruptions during collaborative procedures.

A lever links rigid extensions on misaligned vertebrae to apply opposing pull and push forces, correcting spondylolisthesis through one surgical approach.

Dual apertures secure spinal rods in different planes, improving alignment and stable fixation during complex corrective surgery.

A swivel and fulcrum let a lever reducer lift and align a vertebra so spinal rods seat on non-adjacent fasteners with less complex maneuvering.

Segmented square and circular internal geometries balance torque resistance and smooth guidance in bio-resorbable screws for small bone fractures.

An angled fastener head and set screw secure adjacent vertebrae directly, removing connecting rods and reducing loosening interfaces.

Force sensors measure implant loads while wireless transmission replaces intermittent radiographs, enabling continuous integrity, alignment, and healing assessment.

An interlocking hollowed implant pair pre-locates vertebrae, supports alignment correction, and reduces spinal-canal stress.

An internal cavity retains the facet screw head while spikes seat the adaptor against bone to distribute forces and stabilize degenerated facet joints.

Traditional screws can pull out in poor bone or difficult anatomy; this clamp wraps the lamina and transverse process for spinal stability.

External plates and fixings can make hinge compression indirect; a traversing implant stabilizes the osteotomy bone hinge and supports healing.

An implant template and alignment guide position a plate and screws for rigid navicular-cuneiform fusion without small-area screw interference.

Mechanical reaming and electromagnetic ablation combine with visualization to support facet denudement, debridement, and nerve protection.

Two torque limits guide initial rod reduction and final fixation, helping prevent set screw loosening and implant breakage.

Pivoting and non-pivoting receiver sub-assemblies use a bi-spherical shank head to align rods on curved spines with simpler assembly.

Movable clamping blocks and adjustable support rods simplify orthopedic needle fixation while improving limb stability and positioning accuracy.

Expandable spring tabs engage a spinal implant’s inner surface to speed attachment to bone fixation devices and support stable vertebral alignment.

Opposing flanges and rotation-resisting wings keep spinal receiver arms from splaying during rod locking while enabling cap removal for revision.

Anterior rod-channel openings let this spinal connector join existing fixation rods during revision without partial construct disassembly, reducing procedure time.

Current devices lack fixation options near the rib head; this rib plate combines screws, anchors, and longitudinal members to stabilize fractures.

A modular spherical, metaphyseal, and diaphyseal prosthesis with guided instruments reduces incision size and surgical trauma during implantation.

An implantable cannulated screw uses impedance electrodes and an electronics cartridge to track fracture healing without repeat imaging.

A patient reference array adapter couples navigation hardware to a bone anchor, reducing added trauma and reliance on radiographic imaging.

Engaging rails and holding portions adjust the protector to vertebral size while maintaining stable spinal-cord protection after laminectomy.

Conventional spacers may provide too little fusion area; this linkage-based insert expands after placement to support contact and integration.

An elastic-core polymer cable maintains sternum compression under repeated physiological distraction, reducing cut-through risk during bony healing.

Flexible chain segments separate and coil inside fractured vertebrae to restore height, support spinal curvature, and promote bone ingrowth.

Locking linkages hold derotated vertebral frames in place, reducing assistant needs and protecting implants during correction maneuvers.

Variations in fractured bone anatomy can impair loading; a tailored stem applies stress at selected contact zones to reduce osteonecrosis risk.

Pivoting bone plates align with intramedullary nails across bend angles, simplifying fixation despite nail deflection.

Deflectable tabs shift from pre-fixation to fixation while a holder positions the plate, reinforcing nail attachment when bone quality is poor.

An internal stop and bottom-inserted pressure element simplify rod-to-bone anchoring assembly while securely clamping the bone head.

Open web and space-truss structures distribute implant loads while creating pathways for graft integration and bone fusion.

Soft-tissue catching can rotate spinal inserters and cause uncoupling; coordinated inner-outer locking stabilizes screw engagement during insertion.

A fixation plate and looped band replace irritating sternal wires, applying consistent tension while drainage removes excess fluid.