Internal Osteosythesis TRIZ Cases

Nested collet arms and detents secure pins to resolve the trade-off between reliability and device complexity.

A monolithic sacral-iliac plate integrates screw holes and a tulip feature for spinal rod attachment.

Locking plate with third hole for rotary-preventing and load-carrying means reduces bone tissue removal while preventing rotation of proximal fixing means.

Nested curved members enable expansion through small incisions while a tapered scalloped lock ensures stable fixation against bone structures.

A ball joint mechanism enables spherical articulation for surgical alignment while an expandable collet secures the assembly without expanding the screw head.

Contoured plates with modular hooks stabilize variable scapular anatomy, resolving fixation complexity.

Segmented balloon chambers distribute pressure to stabilize vertebrae while protecting adjacent discs from degeneration.

Segmenting frequency channels into groups and transmitting on one channel per group reduces synchronization latency while maintaining regulatory compliance.

Biodegradable barriers delay nitinol compression to enable single-surgery fracture repair.

Dynamic springs compress the spacer for minimally invasive delivery, then expand to block migration into the spinal canal.

Polyaxial receiver mechanisms in a modular spinal anchor assembly allow dynamic rod orientation to correct complex spinal deformities without rigid constraints.

A deformable sterile holder releases spinal implants via prying to prevent contamination and reduce waste.

A translational wall design maintains constant bone graft volume during expansion, preventing material loss and enhancing spinal lordosis restoration.

Segmented plates with elastic pins snap together to build adjustable cages, resolving complexity and cost trade-offs in spinal fusion.

Self-aligning screw engaging ends and ratchet mechanisms reduce spinal fixation complexity while ensuring precise screw advancement during surgery.

Integrated stabilizing screw and bone remodelling composition enable immediate percutaneous fusion, eliminating open surgery and subsequent instrumentation.

Stabilizer clamps couple bone fixation elements to align vertebrae, resolving rod insertion misalignment caused by spinal curvature.

Multiple curved sections conform to femoral anatomy while spiraling flutes guide rotation, reducing transverse point loads and iatrogenic fracture risk.

A spinal implant system uses a rotatable staple to embed tines into bone side walls for secure fixation.

Segmented interspinous spacer creates vertebral distraction to relieve nerve pressure while avoiding invasive surgical trauma.

A functionally-graded biodegradable scaffold promotes bone ingrowth and vascularization through spatially-controlled porosity.

Segmented adjustment phases and radial locking prevent unintentional disassembly while enabling high compressive force transmission over long distances.

A lower limb traction device uses a screw rod and slide block to apply controlled force to the femur or tibia.

Segmented inner and outer sleeves enable precise bone fastener alignment while reducing tissue trauma during minimally invasive spinal procedures.

Segmented wings stabilize uncinate joints while the central body preserves disc mobility, resolving stability and invasiveness trade-offs.

Nested implant dispensers hold locking caps inside the barrel, eliminating protrusion and maintaining visibility during spinal fixation.

A bottom-loading orthopedic fixation device uses a coupling element and locking clamp to secure bone fasteners from below.

A unitary spinal prosthesis uses an elastomeric flexure assembly to permit controlled movement between vertebral attachment members.

A rod reducing apparatus uses a threaded housing and reduction shaft to position orthopedic fixation devices.

A porous tantalum rod uses a central guide hole and screw threads to stabilize femoral head implants, resolving positioning errors during surgery.

Integrated vertebral implant merges plate and cage to provide stable spinal fixation through minimally invasive lateral access.

A passive electrical resonant circuit mounted on a spinal implant generates a frequency signal indicative of mechanical strain when electromagnetically coupled.

Segmented body and rotating closure join broken medical support rods without complex bending, reducing tissue damage during repair.

A facet sled guide establishes precise screw trajectories within the cervical facet joint, reducing spinal cord injury risk during posterior fusion.

Dynamic spinal construct adjusts rod height via tether locking to prevent screw pull-out and bone weakening.

Collapsible braided stents control bone cement flow via differential permeability, preventing leakage into vascular systems while enhancing interdigitation.

A gravity feed implant dispenser delivers multiple implants sequentially through a guide shaft without reloading.

An asymmetrical interbody implant with a low profile spacer and plate structure designed for oblique insertion.

A spinal rod connector assembly secures rods to bone screws using tapered surfaces and axial movement for rapid surgical installation.

An articulating surgical instrument uses inner and outer shaft translation to position a holding tip for precise spinal implant placement.

Segmenting the femoral head for minimally invasive insertion reduces recovery time and infection risk while maintaining mechanical strength.

A surgical instrument measures interspinous space height and applied force using a spring bias mechanism.

A surgical staple uses four barbed projections for frictional insertion into vertebrae, enabling secure bone fixation.

Segmented plates and interchangeable inserts allow precise anatomical adaptation while the rotatable screw drives compression for reliable spinal stabilization.

Pre-assembled guide tips in bone plates allow surgeons to contour implants directly on the bone without distorting threaded holes.

Curved staples with spikes address fixation reliability challenges in mid-waist scaphoid fractures by conforming to natural anatomy.

Interconnected retractor arms translate and lock to stabilize the surgical site, reducing bulkiness and improving visualization during spinal procedures.

A wedge-shaped fixation device exerts compressive force on reduced bone fractures to maintain anatomical alignment during healing.