Ligaments TRIZ Cases

A sliding graft retention loop moves to a midpoint position on the fixation buckle to minimize flipping distance.

Intermediary sleeve mimics natural ligament environment to resolve anatomical reconstruction accuracy and fixation stability trade-offs.

A forked graft introducer spans a suture between tines to position tendon tissue within a bone tunnel, preventing frictional displacement during insertion.

Localized heating softens artificial muscle fibers during continuous twisting, preventing snarls and breakage while enabling large-scale production.

Segmenting collateral ligaments into hemi-grafts eliminates donor site morbidity while matching material properties for small joint reconstruction.

Integrated tibial post substitutes ACL function to maintain normal motion patterns without requiring separate reconstruction surgery.

A hardenable filler material expands within a bone cavity to secure a graft against the walls.

A composite prosthesis employs a three-dimensional reinforcing element to prevent central buckling and viscera exposure when pulling forces are applied.

A tenodesis implant uses a push rod to guide tendon placement into a bone bore for secure anchoring.

Surgical guidance system aligns canine tibia via precise osteotomy, reducing shear forces and joint instability.

Granular medium compression against an outer member increases structural rigidity while maintaining contour adaptability for rehabilitation support.

Elongate fiber artificial muscles replace expensive nanotubes with coated commercial fibers, achieving high tensile strength and scalability.

Oval stem trochlear implant abuts prepared bone surfaces to repair articular cartilage defects.

Simultaneous heating and tensioning maintains graft size, preventing unpredictable shrinkage and hyperextension.

An elevated meniscus implant integrates anchoring protrusions directly into its outer surface structure.

A tendon anchoring system uses a segmented anchor delivered by a universal fork tool to simplify surgical placement.

Segmented stiffness in the ankle member balances heel strike stability with progressive toe-off support, resolving multiaxial movement trade-offs.

A concentric trephine system uses a sliding reamer support stem to harvest bone tunnels accurately.

Preformed loops with material-differentiated liners enable easy implantation without overflexing the joint, preventing ligament damage during surgery.

A soft actuator uses alternating bistable polymer and flexible electrode layers to achieve precise deformation through voltage control.

Temporary fixation on the guide member stabilizes placement accuracy in slippery shoulder joints where visibility is limited.

An interference screw featuring internal cannulation and locking barbs secures both a graft and reinforcement suture within a bone tunnel.

A tendon fixation anchor uses an expanding sheath to compress grafts against bone.

A patient-specific bone tunnel guide uses a trajectory port to position surgical instruments accurately.

An implantable membrane delivers biological materials to joint regions to support tissue repair.

Interchangeable accessories on a modular base prepare and test tendon constructs, eliminating bulky dedicated tooling.

A specialized implant separates and positions two distinct graft bundles within a single femoral and tibial tunnel for anatomic reconstruction.

A polymer scaffold uses a sealed pouch structure to deliver sustained support during tissue regeneration, eliminating the need for subsequent removal surgery.

Segmentation and intermediary mechanisms enable precise arthroscopic placement of sheet-like implants while minimizing invasive incision size.

Segmented reinforcement ribbons distribute tension evenly across ligament grafts, preventing deformation and reducing surgical time.

Replacing wired earpiece connections with wireless signals eliminates accidental removal risks during combat operations.

Dual-bundle loops enable transverse screw fixation, reducing surgical trauma while maintaining tensile strength.

A biocompatible scaffold integrates a cell growth conduit flap to channel synovial nutrients directly to the repair site.

A ligament spacer with a canted face creates an interference fit to secure graft tissue within bone tunnels.

A soft tissue fixation pad uses friction-enhancing protrusions to distribute mechanical load across a broad surface area.

Segmental orthopaedic implants use porous surfaces and rotating washers to clamp soft tissue, preventing dislocation by enabling biological ingrowth.

A bone clamping instrument with a U-shaped receptacle guides saw blades to trim grafts accurately.

A powered tacker device uses a motor drive assembly to rotate surgical fasteners through prosthetic mesh into tissue.

Synthetic osteoconductive inserts attach flexible grafts to bone tunnels via rapid biological attachment.

A hollow-like meniscus prosthesis deforms to accommodate cartilage surfaces for precise contact.

Implant transitions from rigid to flexible state under compression loads, reducing tendon distance by 75% to improve treatment efficacy.

A posterior modular disc replacement system uses a guide wire to position end plates between vertebrae.

A worm gear-worm retractor adjusts implanted tongue traction force via rotational mechanical transmission.

Intersecting bone tunnels improve graft stability while simplifying suture passage during elbow surgery.

Segmented osteotome design guides the cutting blade to extract bone ingrowth, easing implant extraction during revision surgery.

A ligament assembly uses a resilient element to match natural stiffness and enable adjustable tension for improved joint stability.

A two-piece PEEK implant secures sutures via a snap-fit design.

Threaded bone blocks enable simultaneous insertion into bone tunnels, eliminating interference screws and reducing surgical time.

An anchor with a spherical head and articulated ring rests flatly on the femoral cortex, ensuring stable tendon tensioning.

Segmented guide pins bend their flexible distal portions to avoid articular cartilage damage while enabling precise femoral tunnel placement.