Joint Implants TRIZ Cases

Porous inner layer transports perspiration away from the limb via capillary action, preventing slippage caused by fluid buildup.

An expandable interbody spinal fusion device integrates fixation via a threaded rod, eliminating supplemental hardware and reducing migration risks.

Segmented implant uses titanium and plastic components joined by form-fit connection pieces to restore jaw movement.

A modular surgical kit uses an implant-specific drill bit with pre-cutting edges to form precise recesses for cartilage repair implants.

Dynamic hinge axis shifts along pin during flexion to replicate natural knee motion while maintaining mechanical constraint.

Segmented implant system uses distinct material regions to support tissue while allowing radiation penetration.

Segmented hydrogel anchors conform to irregular joint surfaces using tensioned cables, enabling minimally invasive arthroscopic placement and stable fixation.

An adjustable intervertebral spacer uses a screw-driven carriage to expand endplates and restore disc height.

Offset stud cross-sections shift the anchoring center laterally to improve micro-movement resistance while reducing tibial plateau fracture risk.

Multi-phase ceramic composites resolve brittleness by combining alumina with gadolinium gallium oxide, reducing wear debris and squeaking noise.

A tibial tray with Y-shaped posterior buttress and S-shaped anterior buttress secures interchangeable bearings via snap-fit locking.

Oblique spinal implant prevents subsidence and tissue damage via asymmetric fixation.

Fresnel-shaped core surfaces guide anatomical rotation and bending while coupling cords constrain excessive stress on facet joints.

A knee endoprosthesis migrates its rotational joint center from anterior to posterior, resolving patella subluxation risks in cruciate-deficient knees.

A disc prosthesis uses a shape memory spiral frame to expand and seal annular defects during minimally invasive implantation.

A modular interim joint prosthesis uses detachable coupling segments and anti-adhesive coatings to maintain bone space during revision surgery.

An asymmetric expandable interbody device transforms from a compact to an expanded configuration using a draw bar and screw mechanism.

Gear assembly in adjustment tool converts rotation to linear motion, enabling accurate measurement of implant expansion and lordosis angle.

A detachable assembly device uses a hollow tenon and mortice system to secure a surgical handle.

A provisional prosthetic system uses a keel with fins and a plate with a captured screw to secure components.

A bone fusion device uses extendable plates and a secure coupling mechanism for precise surgical insertion.

Segmented tool heads transmit precise knockout forces to prostheses while protecting surrounding tissue during minimally invasive revision surgery.

A unitary moulded impactor head integrates curved and flat formations to match femoral and tibial implant components.

Wireless sensor array tracks femoral head positioning to resolve trade-offs between measurement precision and device complexity.

Articulating delivery pipe resolves navigation and operator freedom contradiction for uniform vertebral cement injection.

A spacer maintains separation between the stem component and cavity wall during implantation.

Controlled vibratory impacts replace manual hammering to position acetabular components precisely while preventing bone fracturing during revision surgery.

Reciprocating rasp plates and central reamer form precise vertebral endplate cavities to prevent implant expulsion.

A threaded drive screw rotates within a core to simultaneously pivot plates and alter vertebral spacing.

Segmented endplates pivot via a hinge mechanism to accommodate varying intervertebral spaces, reducing tissue trauma from excessive pre-operative distraction.

Porous orthopaedic implant coating stores and releases therapeutic agents directly to the treatment site for sustained local delivery.

Movable wings on a contourable baseplate conform to the glenoid surface, preserving healthy bone and reducing surgical time.

Asymmetric anterior-posterior geometry allows minimally-invasive insertion while maintaining structural integrity.

A ceramic imprint presses heated thermoplastic material to form articular prosthesis implants, eliminating adhesion issues and costly release agents.

Additive manufacturing of a plastic trial implant head with a reinforcing core reduces production costs while maintaining strength for spinal surgery fitting.

Multiple bone plates linked by transverse members resist torsional forces that single plates cannot withstand.

A mobile glenosphere pivots and translates relative to a fixed baseplate, resolving soft tissue impingement while expanding range of motion.

Segmented implant body features helical bone contacting members and support structures to increase surface area for bone ingrowth.

A hybrid medical device combines vibratory and axial impact forces for precise acetabular cup placement.

Opposing taper coaxial spinal implant adjusts height and angle via threaded drive screw and nut rotation, resolving confined space fitting challenges.

A powered leg prosthesis delivers net energy at knee and ankle joints using motor units and real-time sensor feedback.

Gear-driven expandable spinal interbody devices overcome static size limitations by enabling controlled expansion and retraction for microsurgery.

Heating and cooling a plastic insert creates radial clamping on an acetabular cup, preventing bacterial contamination from condensation.

An adjustable seal system uses radial and axial bands to conform to residual limb shapes.

An expandable interbody device uses lateral expansion mechanisms to restore vertebral spacing while preserving central volume for bone graft material.

A segmented TMJ prosthesis with a serpentine flexible unit reduces stress concentration by up to 80% during chewing and speaking.

Offset spherical projections and recesses create a ball-and-socket bearing that eliminates bone impingement during deep flexion.

Segmented quadrant retention buttresses and recesses constrain micromotion in knee prosthesis tibial componentry, reducing back side wear.

Securing devices prevent unintentional release of connecting elements during knee joint endoprosthesis assembly.