Internal Osteosythesis TRIZ Cases

A femoral implant combines a porous head segment with a resorbable neck segment to secure the device within bone tissue.

A spinal interbody fusion member features a convex superior surface and a planar inferior surface to engage vertebral endplates.

A minimally invasive surgical system uses guide wires to establish precise insertion pathways for spinal anchors and connecting rods.

A polyaxial spinal fixation system uses a cup-shaped pedicle screw receiver to enable low-profile implantation.

Merges bone graft containment and screw fixation into one device to prevent dislodgement during spinal fusion.

Axially displaceable tubes and an internal coil enable electromagnetic energy transmission within a compact intramedullary nail.

A self-contained orthopedic implant assembly integrates component formations to enable concerted installation of spinal rod holders.

Segmented guide components align passageways through a keyed stop mechanism, reducing surgical trauma and complexity during hip fracture reduction.

Varying rod stiffness via core and sheath materials minimizes facet capsule disruption while maintaining sagittal balance.

Segmented elastic arms distribute compression loads across the cranial crown, reducing brain tension while maintaining precise bone alignment.

A transpedicular surgical system creates a controlled bone passage for spinal fusion implants.

Segmented hollow shaft and removable plug secure medical devices in burr holes, reducing re-entry time while maintaining cranial integrity.

A bone fixation device uses a thermoplastic coating that melts under light to anchor within the bone structure.

Nested bone anchors form a triangular load-bearing plane to prevent screw dislodgement and enhance fixation stability.

Elastic tensional elements connect vertebrae to reduce friction wear while prevention bumps constrain rotation range.

A wedge-shaped spinal implant uses internal labyrinthine openings to hold bone graft material and promote rapid tissue ingrowth.

An integrated spinal anchor merges pedicle and lamina fixation points to stabilize weakened vertebral components.

A locking bushing mechanism engages a polyaxial head using an inner shaft to secure spinal screw assemblies.

RFID transponders measure bone fragment separation via signal delays, resolving the trade-off between measurement precision and device complexity.

A multi-link spinal fixation assembly uses slotted end caps to enable non-axial link addition without dismantling the existing structure.

Segmented anchor assemblies with multi-angular connectors resolve non-coplanar alignment issues and reduce hardware interference during spinal fusion.

A polyaxial bone plate assembly adapts to irregular bone surfaces using adjustable pads and a locking mechanism.

A preloaded adapter secures a hammer toe implant to prevent premature deployment and simplify installation in orthopedic surgery.

A ratchet collet mechanism converts rotational handle motion into linear rod positioning force.

Custom positioning device aligns cranial bone sections using patient-specific 3D data for precise anatomical adaptation.

An adjustable engagement member guides rods between pedicle screws, resolving alignment precision issues in minimally invasive procedures.

An articulating implant holder uses a ball joint and translation mechanism to orient medical devices during surgical procedures.

An elastomeric connector joins existing spinal hardware to allow controlled flexing, addressing static device wear and diminished stabilization effectiveness.

Nested elastic springs within a movable and stationary rod structure distribute stress concentration while maintaining vertebral stabilization.

Integrally forming the insertion device base with the nail body eliminates separate tools and allows controlled detachment at predetermined weak points.

Ultrasonic vibration cuts through tissue around existing spinal rods, enabling secure clamping without separate removal procedures.

Segmented bone screw and receiver assembly enable polyaxial motion, reducing obstruction of the surgical corridor.

A bone plate features a rounded lateral shaft and an angulated hook member for clavicle fixation.

Integrating a retractable awl into a plate holder reduces surgical duration by eliminating instrument switching during spinal procedures.

A polyaxial bone screw assembly uses a deformable single-piece closure structure to maintain secure frictional engagement with the connecting member.

A spinal connector system extends existing constructs using a rotatable rod and set screw locking mechanism.

A segmented interbody spacer expands via cam action to provide spinal support while minimizing tissue disruption during insertion.

A spinal reduction instrument compresses rods into fixation saddles using a dedicated throughbore mechanism.

Nested retention pin threading reversibly locks the endcap to the driver shaft, preventing accidental disengagement during bone fixation.

Segmented connector modules with oblong holes enable adjustable positioning, resolving the trade-off between surgical ease of use and device complexity.

An orthopedic coupling device uses an adjustable length mechanism and eccentric locking to resolve the trade-off between adaptability and structural complexity.

An articulating instrument pivots spinal implants to wedge shapes for minimally invasive insertion.

Curved fixation plates join via a beveled bolt to accommodate natural bone topography, eliminating bone shaving that compromises vertebral strength.

A spinal implant uses an actuator assembly to rotate arms from a compact profile into a deployed configuration.

An eccentric cap design stabilizes the facet joint while reducing placement sensitivity.

A locking mechanism secures implantable fabric ends using a rotatable cam member and aperture to adjust tension.

Asymmetric guide surfaces on the insert and receiver constrain angular position, preventing unwanted rotation during spinal surgery implantation.

Curved trailing end geometry reduces soft tissue impingement while maintaining precise alignment accuracy for medical device coupling.