Spinal Implants TRIZ Cases

Anterior and posterior hinge members expand lateral spacers bilaterally to engage vertebral endplates, reducing subsidence risk.

Screw-driven carriage moves ramped endplates to restore disc height, accommodating varying anatomical needs without large insertion corridors.

Segmenting nucleus pulposus and annulus fibrosus tissues resolves treatment effectiveness limits by enabling independent structural optimization.

A segmented spinal fusion cage adjusts its anterior profile via pivot joints while maintaining constant superior height.

A lordotic expanding implant uses a U-shaped body with a drive screw mechanism for controlled expansion.

Segmented nitinol spacer expands via superelasticity, reducing stress on adjacent joints.

Interlocking u-shaped components resist over-extension and rotation, reducing adjacent disc stress by mimicking healthy spinal kinematics.

Segmented vertebral implant bodies slide along an axis and lock via elastic flexure, resolving complexity trade-offs during insertion.

Segmented design enables percutaneous insertion while inflation restores intervertebral height, addressing insufficient stabilization in traditional fusion.

A vertebral implant uses a retractable screw head to lock into the cage well.

A three-piece intervertebral disc prosthesis uses a press-fit core to secure plates and enable rotation.

Segmenting the balloon and cement via a flexible sleeve prevents rupture during high-pressure injection, restoring vertebral height.

A multifunctional posterior insertion instrument rotates and expands an expandable vertebral body replacement using integrated gear and screw driver mechanisms.

A base member with an adjustable segment enables customizable expansion, while a universal attachment port simplifies tool positioning and plate coupling.

Curved expandable cage positions away from spinal cord using automatic locking mechanism, preventing collapse and enabling bone graft delivery.

An adjustable depth medical implant modifies its footprint via a movable lattice structure, eliminating the need for multiple inventory sizes during surgery.

Sliding an end cap on a curved base section adjusts vertebral angulation, resolving the trade-off between anatomical adaptability and device complexity.

A multilayered intervertebral disk prosthesis partitions its inner cavity into saline-filled compartments separated by vertical walls containing orifices.

Shaft-driven wedges expand pivoting wings against vertebral endplates, preventing implant subsidence and enhancing spinal stability.

Porous convex domed elements absorb impact energy via elastic deformation, resolving the trade-off between damping performance and structural strength.

Interlocking protrusions on a compressible elastomeric core transmit torque while absorbing loads, reducing adjacent disc degeneration risk.

Nested wafer stacks within an expandable interbody fusion device provide controlled distraction, eliminating bulky pre-distraction requirements.

A biaxial rolling-contact core prevents sliding wear by constraining motion through flexures, replacing complex mechanical assemblies.

A nuclear implant uses a shape memory alloy wire to form a stable ring structure that absorbs shock and maintains spinal mobility.

Tapered interbody cage performs self-distraction during insertion to maintain vertebral separation without separate tools, reducing surgical complexity.

Shape memory polymer networks enable surgical fitting through thermal-responsive transition.

A modular anterior lumbar interbody spacer couples a body and plate via a spring-loaded lock tab for rigid fixation.

A screw-driven articulating spacer expands endplates to restore disc height, reducing tissue damage from large incisions during spinal fusion.

An offset engagement mechanism enables minimally invasive spinal implant rotation while reducing tissue trauma.

A disc prosthesis uses a spherical cap to roll along guide edges, eliminating localized wear and extending lifespan.

Segmented distraction and delivery mechanisms protect implant integrity by eliminating compression stress during insertion.

An expandable spinal implant uses a control member to adjust vertical height between upper and lower supports for customized anatomical fit.

A lumbar cage uses peripheral notches for flexible insertion routes and multiple screw holes for secure vertebral fixation.

A lumbar disc prosthesis uses a spherical flexible element to replicate natural vertebral movements through guided compression.

Segmenting the implant into solid and porous zones resolves manufacturing complexity while maintaining structural strength for reliable bone ingrowth.

Built-in lordotic angle allows direct straight insertion of the spinal implant, eliminating rotation risks and specialized tools.

Rotatable and linearly translatable arms angulate blades to provide controlled tissue displacement, minimizing trauma during surgical procedures.

A structural ceramic intervertebral fusion device with wavy peripheral surfaces and funnel-shaped pore channels.

Interlocking pore patterns in adjacent scaffold layers resolve shear strength and manufacturing cost trade-offs while maintaining structural integrity.

A biomimetic artificial intervertebral disc uses a cubic multi-axial fabric connected by tensioned filaments to surface-mounted tappets.

Pivoting links enable lateral expansion of the spinal fusion implant, resolving fixed-width load distribution limits.

A two-part intervertebral disc implant uses convex and saddle-shaped articulating surfaces to enable independent centers of rotation for flexion, extension, and lateral bending.

Spherical geometry allows the end plate to pivot across multiple axes, adapting to natural spinal curvature without increasing component complexity.

A vertebral insert device anchors a nucleus disc replacement implant within the spinal annulus using mechanical interlock features.

A deformable intervertebral cage uses elastic posterior members to share loads and minimize stress shielding during vertebral arthrodesis.

Internal imaging markers improve navigation precision during insertion, resolving alignment challenges in complex spinal fusion procedures.

Rotatable and linearly translatable arms angulate retractor blades to provide precise surgical access while minimizing surrounding tissue trauma.

Articulating interbody fusion devices utilize additive manufacturing to create interconnected pores and rotatable connectors.

A spinal fusion cage uses an anterior plate and posterior shims to anchor vertebral bodies securely.

Molded osteoconductive insert with transverse fibers anchors to polymer vertebral implant body, preventing subsidence from poor bone fusion.