Spinal Implants TRIZ Cases

A hinged artificial spinal disk uses a sliding rod to enable multi-dimensional motion within controlled limits.

Bi-concave core elements articulate with convex end plates to provide universal motion and horizontal translation while preserving spinal stability.

Segmented main body and movable frame generate complementary acting forces to improve engagement stability and expedite bone fusion.

Linked locking elements mechanically secure an expandable spinal cage, resolving the trade-off between ease of insertion and interface stability.

Combines PEEK spacer material with titanium inserts to enhance strength for screw retention while minimizing anterior anatomical obstruction.

A spinal interbody device combines rigid outer shells with a compliant inner dampener to absorb axial loads.

Segmented main body and movable frame generate differential forces for micro motion, addressing insufficient retention in single-force devices.

Superabsorbent polymers absorb water through osmosis to expand intervertebral disc volume, restoring height without removing nucleus pulposus material.

An expandable intervertebral implant uses an actuator screw to drive ramped endplates for height adjustment.

A spinal interbody spacer integrates a locking mechanism to secure the cage and prevent migration.

Worm-threaded shaft rotates to drive linkages, pivoting endplates from closed to open position for stable vertebral engagement.

Textile implant with expandable side pockets restores disc height and spinal mobility by increasing surface contact for vertebral anchoring.

Differing radii of curvature on convex and concave prosthesis surfaces reduce material strain and prevent dislocation during natural spine movement.

Embedded magnets in superior and inferior plates create repulsion to eliminate mechanical contact, reducing wear debris and adverse tissue reactions.

A central gear deploys nested L-shaped arms within an expandable intervertebral spacer, enabling insertion between nerve roots without retraction.

Expandable bag implant stabilizes vertebrae through endplate apertures, reducing tissue disruption compared to traditional screw fixation.

Contoured surfaces on a resilient core deflect and stiffen under load, reducing stress distribution issues in artificial spinal discs.

Segmented anterior and posterior sections allow extraction via either surgical approach, reducing risk to major structures.

A surgical instrument uses opposed ramps to distract vertebral bodies and place intervertebral implants safely.

Segmented prosthesis components with nested slot-rod locking mechanisms enable minimally invasive implantation while minimizing annular tissue trauma.

Gradient elastic moduli in spacer components distribute load and preserve physiological motion, preventing adjacent level deterioration.

A cervical disc prosthesis uses a ceramic composite to maintain continuous articular surface contact during sideways and axial mobility.

Extraction of the main body implant component enables single-incision spinal fixation, reducing surgical invasiveness while maintaining vertebral stability.

A curved mesh cage with press-fit endplates positions a spinal implant away from the dura.

Flexible arms on an integral spring device collapse to cover screw heads, preventing backing out under shock without auxiliary components.

A single surgical instrument uses a rotating drive shaft to actuate a movable jaw for secure implant gripping.

Articulating prosthetic components restore biomechanical motion while keel structures enhance fixation strength to adjacent vertebral endplates.

Rail groove interconnections enable precise implant placement while bulky tools hinder visualization.

A prosthetic system with movable arms anchors to vertebral sidewalls.

Integrated assembly tool merges insertion and locking functions to resolve cumbersome multi-step procedures in femoral revision arthroplasty.

A modular spine stabilization system uses compressible main bodies and interchangeable inserts to enable dynamic fixation or rigid fusion.

Segmented intervertebral disc prostheses use spherical bearings and elastic members to mimic natural disc movement while restricting axial rotation.

Deformable support struts control expansion direction and prevent adjacent fractures through elastic instability.

An expandable intervertebral implant uses translating wedge members to separate plates and restore disc height.

Mechanical centering tool uses spring-biased handles and pin guides for precise vertebral alignment.

An expandable intervertebral implant uses segmented compartments to inflate independently in perpendicular directions for precise dimensional control.

A medical composite material combines a polymer layer and a sintered porous metal layer to enhance bone tissue integration.

Adjustable anterior and posterior posts in an expandable vertebral body replacement accommodate anatomical variations for secure anchorage.

A spinal nucleus implant blends non-hydrogel and hydrophilic polymers to absorb water and swell upon insertion.

A spinal fusion cage uses a threaded drive shaft to adjust vertebral alignment.

Multi-layer intervertebral spacer with elastomeric core resolves stability versus motion trade-offs.

A composite intervertebral disc combines a hard articulating core with a soft polymeric buttress to reduce stress shielding and wear debris.

Thick frame bars in a 3D grid implant resist extrusion stress while polymer filling reduces bone stress shielding.

Embedded magnets align multiple spinal implants to prevent misalignment and expulsion in non-uniform vertebral endplates.

A web structure spinal implant uses a space truss with flexible struts to interface with bone tissue.

A multi-composite disc prosthesis with bonded softer outer and harder inner biomaterials restores spinal mechanics.

Segmented cervical disc prosthesis combines PEEK plates with titanium anchor fins to resolve imaging transparency versus mechanical strength trade-offs.

A spinal installation tool uses a threaded drive rod to translate rotational motion into precise longitudinal movement for prosthesis insertion.

A pivoting end cap intervertebral implant adjusts its angular position to match spinal curvature, securing vertebral contact despite anatomical variations.