Joint Implants TRIZ Cases

Viscoelastic core absorbs load peaks while guide pins enable six degrees of freedom for natural spinal movement.

Angled hook legs on the grasping plate distribute mechanical stress to prevent structural deformation of fragile double mobility implants.

Flexible tab snaps into anterior cut-out to fix tibial insert, eliminating complex vertical holes and simplifying structure.

A threaded shaft rotates nuts against slides to expand the spacer, resolving trade-offs between spinal stability and surgical complexity.

Separable cone segments adjust size without deformation, ensuring stable anchoring.

Sliding insertion blades shield spinal implants from vertebral endplates, preventing premature engagement and injury during placement.

A self-expanding biodegradable implant with adhesive coatings fills bone defects and creates a tight seal.

Rotatable shim assemblies verify limb alignment and ligament tension to reduce surgical procedure time and minimize unnecessary bone removal.

A surgical extractor uses a linkage assembly to move jaws along a linear path for secure orthopedic implant gripping.

A modular humeral adaptor enables rotational movement between the stem and glenosphere.

A femoral stem device uses a selectively hollowed proximal region and truss framework to accommodate lateral wall deformation.

A modular acetabular inserter uses an interchangeable prosthesis interface to enable precise implant positioning during minimally invasive joint surgery.

A surgical impactor uses a friction-based compression collar to secure acetabular cups for precise alignment during minimally invasive procedures.

A proximal radioulnar joint prosthesis secures a radial brace member to the radius bone via a press-fit stem and stabilizes the ulna with a dedicated brace.

A composite orthopedic implant uses a porous metal base and polymer body to encourage bone and cartilage ingrowth.

An octagonal humeral stem with convex rounded angles provides stable fixation in the medullary cavity.

Hermetically sealed electric impactor enables single-handed arthroscopic precision without compromising sterility.

Segmented fastener with dual axial threads secures modular orthopaedic prosthetic components to a stem.

Telescopic expandable interbody fusion device maintains compressive stress on graft material during expansion, preventing loss of load that hinders bone fusion.

Segmenting the jaw via a dovetail lock prevents full tool replacement when clamping forces cause breakage.

Nested members expand via a wedge mechanism to distract vertebral bodies, reducing tissue disruption during minimally invasive insertion.

A femoral stem inserter uses a ball-shaped head and cavity for quick non-threaded coupling.

Interlocking wafers with resilient prongs prevent retrograde movement during sequential insertion, maintaining structural integrity under compressive loads.

A trial instrument couples to the femur to mimic combined component shapes for acetabular alignment guidance.

Thermal contraction of a heated bolt creates tensile stress that increases compressive force between modular hip stem components.

An angled concave glenoid baseplate enables switching between traditional and reverse shoulder replacements without extensive bone removal.

Axis bar with indicator edge and adjustable stem clamps determine shaft axis to eliminate visual judgment errors in load testing.

An insertion tool with alignment rails and a locking blocker guides intervertebral spacers into disc spaces, preventing implant surface damage during placement.

A hemispherical liner lip projects beyond the equatorial line to create an undercut edge that securely contains a dual-mobility head.

Asymmetric outlet openings direct hydraulic osteocementum to specific regions, resolving pseudoarthrosis caused by limited autologous bone availability.

Embedded magnetometers and optical detectors map contact points to correct implant orientation, reducing dislocation risks.

A capture element engages bushings to restrict femoral component distraction, preventing luxation when soft tissue support is insufficient.

A patella drill guide clamps the bone with a cantilever spring, enabling single-handed tracking evaluation and precise implant alignment.

Offset teeth rows on facet implant components enable dynamic stabilization between superior and inferior facets.

Segmented surgical systems integrate physician input with robotic execution to resolve alignment precision versus adaptability trade-offs.

An orthopedic insertion tool employs a dual engagement system with an adjustable clamp to provide 360-degree rotational control over varying hip stem sizes.

Offset window delivery tube converts longitudinal pusher force into lateral deployment, reducing bone removal and operating time.

Nested acetabular cup fasteners prevent loosening by mechanically interlocking inner and outer heads.

A femoral anterior cam engages a tibial post to replicate anterior cruciate ligament function in knee implants.

Silicon nitride implants combine osteo-inductive properties with anti-bacterial surfaces to lower infection risks and improve bone fusion success rates.

Perforator tools create predetermined arrays of holes in bone surfaces to enhance mechanical interlocking with polymethyl methacrylate cement.

The insertion instrument secures to both endplates of the implant during expansion, restoring disc height while maintaining structural integrity under compressive forces.

A modular capture converts an open-face block into a slotted guide via a magnetic catch, reducing inventory complexity and sterilization time.

A stabilized intervertebral spacer uses a ramped drive mechanism to expand between vertebrae.

Segmented couplers enable discrete eccentricity positioning on the humeral head, accommodating varied patient anatomies without complex continuous mechanisms.

An integrated plate and spacer system uses angled screw holes and a set screw mechanism to prevent bone screw back-out.

Replacing complex imaging systems, the device calculates solidity indicators from peak signal durations to enable precise tissue evaluation during surgery.

A variable angle blade augment uses a socket capture mechanism to adjust the blade segment orientation against an acetabular shell.

Segmenting the base plate with a removable taper member allows surgeons to adjust joint spacing without disturbing bone ingrowth, reducing scapular notching.

An anterior hip extractor uses an arcuate arm to align removal force with the femur axis.