Internal Osteosythesis TRIZ Cases

Guide sleeve mechanism locks bone screws to a securing plate, preventing rotational misalignment and screw loosening during fracture healing.

A conformable ligature system holds bones in fixed relative position using a blocking body that creates friction to secure tension.

Integrated plate recesses eliminate separate alignment rings, reducing device complexity while securing screw fixation.

A cannulated screw with internal threads compresses foot bones using transverse elements to stabilize fixation.

A rigid skeleton body embeds a microporous bone fusion structure to promote tissue growth and secure spinal elements.

A spinal construct connector engages bone screws and surgical instruments via a releasable mating element for precise manipulation.

Dovetail grooves and nested inserts secure spinal elongate members, resolving stability complexity trade-offs.

Expansion-only split retainer ring secures polyaxial bone screw against pull-out forces during spinal reduction.

A pars clamp uses movable claws and set screws to grip vertebrae without bone screws.

A single-sided dynamic spine plate uses modular components with resilient coupling for adjustable vertebral stabilization.

Segmented bone anchors and integral rods simplify implantation by maximizing surgical visibility.

An adjustable coupling ring limits screw head movement in a spinal fixation system, replacing multiple specialized screws with one versatile component.

A dynamic stabilization intervertebral implant uses a modular wedge and flexible strap to secure spinal fixation through minimal invasive access.

A mandibular distractor uses a force-limited engagement mechanism to enable controlled bidirectional rotation of the drive rod relative to the housing.

Elastic blades deform to secure the blocking element, while a tightening screw immobilizes the connecting rod against rotation and translation.

A screw jack rod reduction device uses a grasping fork assembly to manipulate spinal rods.

A surgical instrument with a flexible shaft and T-shaped beads enables precise spinal rod placement through a single stab incision.

A rod persuader apparatus uses a trigger-driven ratchet to advance spinal rods into orthopedic devices.

Ultrasonic melting of a thermoplastic intermediary locks a fastener against axial backout and rotation in modular spinal implants.

Autologous bone implants restore joint function by treating subchondral defects without introducing foreign materials that cause biomechanical incompatibility.

Hollow implant body with elastically deformable arcuate tabs adapts to bone shape for secure positioning.

A rotatable surgical guide member with locking elements orients instruments relative to spinal implants.

A cranial cover system with a base plate and guide secures the proximal catheter during ultrasound-guided cerebral shunt placement.

Porous metal sleeve augments on an intramedullary implant anchor in osteoporotic bone, preventing subsidence and stabilizing fractures.

A surgical tool adaptor manages K-wire protrusion via a locking mechanism and proximal holder.

A dual spring member with equal working lengths distributes loads evenly between inner and outer coils to prevent mechanical failure.

A bone screw system with a movable ball joint allows controlled motion and secure engagement.

A rod bender system uses a work-hardening template to impart precise curvature to orthopaedic rods.

Segmented encasement with opposing protrusions guides medical coating deposition onto bone plates, resolving inconsistent application complexity.

Arcuate projecting members deform against contoured connecting elements to prevent slippage and loosening in spinal stabilization assemblies.

Segmented cortical and cancellous threads on a star-shaped body enable minimally invasive insertion, reducing tissue damage while ensuring stable fixation.

A bottom-loading orthopedic fixation device secures bone fasteners via a locking clamp assembly.

Pre-assembled spinal clamp receivers constrain the rod through a threaded crown and nut, reducing surgical time by eliminating intraoperative shaping.

A cortical bone pin anchors toe bones using barbs and a shoulder design.

Asymmetric wall legs in a bone screw head housing enable controlled rod insertion, reducing tissue trauma during minimally invasive spinal surgery.

Pivotal jaws and axial adjustment simplify rod seating, reducing placement time.

Segmented external force production minimizes infection risks while maintaining fixation stability during controlled bone lengthening.

A modular intramedullary fixation device uses telescopic rods and hubs for minimally invasive assembly within the bone canal.

Pressurized mixing retains gas voids in bone augmentation material to create a porous structure.

Enlarged oblong contact members at lattice nodes distribute stress across the bone interface, reducing damage risk during spinal fusion.

Rotatable attachment assemblies on an adjustable occipital plate accommodate rod misalignments, reducing surgical time and inventory needs.

Segmented fixation elements enable gradual deformity correction while preserving natural spinal growth.

A deformable interbody implant utilizes a viscoelastic core to adapt to uneven vertebral endplates, reducing subsidence and expulsion risks.

A modular pedicle screw uses a double ring retainer to secure vertebral rods.

Rotating spherical ball bearings distribute spinal fixation loads across vertebrae, reducing undue stress during deformity correction.

A vertebral facet joint fusion implant integrates a fastener interface and substance delivery channel to secure adjacent vertebrae.

A bone fixation plate uses angulatable fasteners with a threaded coupler to secure spinal implants at selectable angles.

A navigated cannulated dilator communicates orientation signals to guide spinal implant placement.

An inflatable fluid receptacle transfers hydraulic pressure for distraction, eliminating dynamic seals that cause wear and debris.