Internal Osteosythesis TRIZ Cases

An expandable support member with a movable retention member relieves spinal cord pressure through percutaneous insertion, avoiding large incisions.

A balloon catheter system delivers reinforcing materials to fractured bones using a light guide for photopolymerization.

Pivoting anchor extenders guide connecting elements through small incisions to stabilize spinal structures.

Segmented dynamic spinal plates slide vertically to accommodate vertebral height changes, improving surgical visibility during intermediate screw fixation.

A compliant hip fixation system uses a slideable screw and deformable member to adjust angular orientation.

Segmented fenestrations in the bone screw shaft improve cortical purchase while the cannulated design confines bone cement within the vertebral body.

An anterior cervical plate extends beyond the vertebral surface to maximize bone graft area while maintaining distance from adjacent discs.

An integrated spinal connector merges fixation points to reduce rod stress while enabling minimally invasive percutaneous insertion.

A vertebral body replacement device uses a threaded central rod to adjust implant length.

Integral wedge and anchor portions guide insertion into a rectangular cavity to fuse vertebrae.

Laminar engagement members restrict reduction of intervertebral spacing while avoiding brittle spinous process failure.

Segmented anchors and helical threads resist migration and rotation in femoral neck fractures, preventing cut-out and thread stripping.

Oblique cutting geometry prevents tissue damage during angled craniotomies, and single-screw fixation reduces hardware exposure to improve cosmetic outcomes.

A universal pedicle screw removal tool with a tapered shaft and right-angle tip engages the screw channel for secure rotation.

Replacing metal inserts with disposable composite plates reduces manufacturing complexity while maintaining structural strength and precise fixation stability.

A deflectable lock fastener uses spring fingers to engage washer teeth.

A clamping interspinous spacer uses pivotable wings and a screw mechanism to adjust engagement diameters for secure spinal fixation.

Segmenting the interspinous implant allows removing the proximal end after healing, reducing patient discomfort from large profiles.

A pivotable stop member captures tissue to prevent distal migration and ensure precise staple placement.

Surgical inserter tool uses an articulating piston to transition implants from linear to curvilinear positions for precise placement.

Osteotomy plate positions protrusion into wedge opening to stabilize bone segments and protect surrounding tissue during healing.

A keyed crown seat member limits rotation within a receiver to secure multi-axial spinal implants.

A tunable stiffness bone rod uses flex members to allow controlled deformation under axial load.

An articulated shaft enables a dual-purpose forceps to switch between opening and pressurizing functions, reducing operational complexity in spinal surgery.

A cervical drill guide apparatus uses a rotation mechanism to adjust the handle assembly orientation relative to the mounting plate.

An expandable bone fixation housing uses an expansion bolt to compress against cortical shaft bone, resolving surgical precision trade-offs.

Segmented bone coupling device with reversible locking mechanism enables incremental angle adjustments during surgical implantation.

A cervical cage integrates upper and lower spikes that unfold to lock onto vertebral bodies.

A minimally invasive expandable containment device restores vertebral body height while preventing posterior or lateral bone cement leakage during augmentation.

Segmented delivery members enable precise rod alignment during percutaneous fusion, reducing tissue disruption while maintaining stable vertebral fixation.

An active compression screw assembly integrates distal and proximal threads with a spring mechanism to deliver adjustable force across bone fractures.

Intermediary resurfacing devices alleviate degenerative pain while preserving spinal biomechanics and natural joint motion.

Integrating a radiographically visible element on the pedicle screw eliminates guide wires, reducing procedure complexity while maintaining insertion accuracy.

Segmented fixation plate with distinct hole configurations reduces cancellous bone collapse and neurovascular injury during tibial osteotomy.

Nesting the compressor within the fulcrum reduces instrument footprint, enabling precise vertebral manipulation in confined surgical spaces.

An automatic snapping mechanism in the targeting device eliminates manual locking steps, reducing surgical time while maintaining high positioning precision.

Segmented splines distribute rotational force across multiple contact points to stabilize bone fasteners and reduce toggle during spinal procedures.

A bone treatment system delivers cured filling material via a catheter into a balloon-formed cavity.

Lateral transvertebral curvilinear nails achieve vertebral fixation strength while avoiding neural and vascular injury associated with pedicle screws.

Posterior pedicle screw inversion prevents anterior vascular damage while maintaining fixation stability.

A pre-curved intramedullary nail matches clavicle anatomy to promote stable bone alignment.

Internal helical threads convert nut rotation into longitudinal rod displacement, enabling in vivo length adjustment without tissue irritation.

Protective sheaths enable movable lines between spinal anchors, maintaining tension while accommodating natural vertebral movement.

Rotatable plates with inner cavities forcibly engage implant supports to align and stabilize vertebrae without multiple locking steps.

An intervertebral spacer features an offset tool engagement surface that securely couples with a movable insertion tool gripping end.

A cannulated bone screw assembly expands its distal end to generate stable compression across facet joints.

Flexible silicone leads and tethers reduce adherence to sensitive anatomy, enabling safer implantation during scoliosis correction.