Joint Implants TRIZ Cases

Removable spacer augments attach to a radial trial implant stem to define composite head height, reducing joint distraction during size selection.

An offset strike plate enables one-handed operation by applying radial force while minimizing radial clearance and tissue interference.

Protruding fingers on the prosthesis compress tuberosity fragments to resolve insufficient fracture reduction and promote union.

A reverse shoulder prosthesis with a 135-degree cervico-diaphyseal angle alters humeral reception surface orientation.

A screw-driven expandable intervertebral cage adjusts disc spacing and spinal alignment through a scissor-jack linkage mechanism.

Radial flange extension augments shoulder bone fixation, mitigating glenoid deterioration and improving prosthesis stability.

Sloping intermediate zone walls reduce bone swirling to prevent heat degradation and maintain osteoinductivity during milling.

A non-expandable multiple-segment spinal cage uses pivotally connected segments with hinge stoppers to control orientation.

Segmented struts in an expandable interbody spacer conform to vertebral endplates, reducing subsidence and stress shielding risks.

A locking mechanism secures the adaptor while allowing rotation, resolving impingement issues that limit range of motion.

Angled cement pockets contain bone cement to prevent escape during positioning and enhance bonding strength.

Segmented cam and plate components reduce surgical invasiveness while restoring joint functionality through adjustable pivoting.

Hinged knee spacer enables rotational motion between femoral and tibial components, restoring mobility during infection treatment.

A shoulder prosthesis augment insert features a breakable portion that creates an aperture to accommodate glenoid engaging members.

An orthopedic implant features a space truss bone interface that resolves loosening risks by promoting bone growth into the structure.

Segmented medial and lateral bearings on a unitary tibial component resolve the trade-off between structural stability and patient-specific adaptability.

Segmented shell and liner components insert via nested geometry to reduce tissue trauma while maintaining precise angular orientation.

A steerable expandable interbody spacer uses a gearing mechanism to transition between compact and expanded configurations.

Actuator screw rotates to drive a carriage along ramps, sliding endplates apart to restore disc space height and stabilize vertebrae.

Adjustable modular spacer device adapts to varying anatomical dimensions through interchangeable components and dynamic connection mechanisms.

Segmented metal ring augments standardized ceramic liner geometry to improve joint stability without increasing device complexity.

Segmented shoulder implant prevents humeral head migration while preserving glenoid bone integrity for future surgeries.

Lift bodies driven by a threaded fastener expand vertically between vertebrae, maximizing bone growth space without internal mechanism obstruction.

A segmented spinal implant with an expansion wedge increases height for load bearing while preserving vertebral endplates.

A rotatable guide tower adjusts offset orientation relative to a stem trial.

A femoral neck uses a Morse taper fitting to secure the stem.

Segmented height modulation and lateral anchoring reduce expansion complexity while stabilizing the vertebral segment.

Surgical implants with graded porous structures enhance bone ingrowth through stacked fibre layers.

A segmented reamer guide stabilizes adjacent bones during milling, preventing elastic separation and ensuring accurate fusion plate placement.

Tapered protrusions compress cancellous bone tissue to achieve initial fixation and encourage long-term stability through bone ingrowth.

Segmented modular hip stem implant inserts through separate anterior and posterior incisions to reduce tissue trauma during femur placement.

Offset slots and a single block guide ulna parts, resolving space constraints and manual handling errors during shortening.

Thermal contraction allows insertion of a porous metal insert into a cavity, where expansion locks it against a ledge to prevent pore clogging.

A composite trial prosthesis uses a shim with visible markings to indicate thickness during knee replacement surgery.

An articulated bone screw head pivots inside a slotted acetabular implant hole, preventing protrusion and jamming during angular adjustment.

Segmented expandable intervertebral implant with a locking pin assembly prevents bone graft migration and nonunion during spinal fusion.

Central projections engage a core opening to retain the implant while allowing plate sliding, preventing contact and reducing wear.

Electronic sensing replaces manual mechanisms to resolve measurement precision versus device complexity trade-offs in ligament balancing.

A bone fusion device uses extendable tabs and a coupling mechanism for secure positioning between vertebrae.

A contoured femoral head reduces frictional torque while a modular junction with shape memory materials prevents loosening.

Segmented trial acetabular liner uses movable tabs to resolve the contradiction between tight fit accuracy and ease of removal during hip surgery.

A laterally expandable spinal fusion cage uses an asymmetrically tapered actuation tool to slide inner and outer cage components apart.

Modular metaglene assembly with adjustable augment components enables customizable glenoid attachment.

A bioresorbable joint spacer provides mechanical support to a human subject's joint using an expandable stent and covering.

Segmented design extracts structural support to the periphery, resolving the trade-off between stability and bone growth volume.

A recessed slot and through-bore in an orthopedic augment enable sliding reception of a coupling component head for secure femoral prosthesis attachment.

Segmenting the intervertebral fusion device into three components reduces assembly complexity while maintaining adaptability to varying spinal dimensions.

Stabilizing links prevent over-compression of the fluid coupler, reducing tensile stresses under unilateral bending moments.

Disposable introducer with spirit level and laser aligns acetabular cup accurately while reducing complexity and cost of navigation systems.