Internal Osteosythesis TRIZ Cases

Dynamic expandable laminoplasty plates adapt width to relieve spinal compression while maintaining stable fixation without complex mechanisms.

An expandable rhenium alloy device stabilizes bone fractures via controlled intramedullary expansion, eliminating cortical reaming and soft tissue trauma.

A spring-loaded spinal implant maintains constant distraction force between non-coaxial rods to correct curvature.

A convertible spinal screw uses a pressure cap to restrict movement from polyaxial alignment to monoaxial fixation.

A hinge-link stabilizer assembly with adjustable rods and locking mechanisms provides precise spinal manipulation.

Flexible bone tape aligns fragments before rigidification, reducing tissue disruption during complex fracture repair.

A spine filler catheter uses a dismountable outer thimble to secure the feed bag during surgery.

Magnetic actuation rotates an inner magnet to move a threaded block, eliminating invasive external fixators during limb lengthening.

Segmented protective sheath guides spinal implants through tissue while preventing physical contact with adjacent nerves.

Integrated bone plate apertures guide cerclage cables to secure large bone fractures while reducing surgical complexity.

Tunneling devices access subchondral bone defects to deliver hardening materials, restoring force distribution while preserving the articular surface.

A disc locking implant anchors to vertebrae using lateral interbody wing members and an anterior retention plate.

A plate holder instrument with a displaceable clamp secures bone plates for spinal fusion procedures.

A multi-axial vertebral fixation fastener assembly uses a deformation element and compression mechanism to enable angular adjustment.

Radial ramifications engage laminae to stabilize the spine without relying on spinous process friction, reducing injury risk and improving force distribution.

A surgical instrument uses a ratcheted sleeve to advance set screws sequentially along an inner driver shaft.

Segmented handle tubes with nested cannulated guides create a continuous path for surgical cable, preventing soft tissue binding during insertion.

Segmented connection bodies linked by a transverse portion enable adjustable lateral spacing and torsional strength for spinal fixation.

A dual-layer braided tether with angled strands provides flexible spinal support.

A spinal connector implant secures rods and screws using clamping portions with T-shaped indentations and dual diameters.

A wedge mechanism with inclined ramps expands an interbody implant to restore sagittal balance while minimizing bone removal during spinal fusion procedures.

A combined bone tap and rasp instrument featuring a tapered head with longitudinal channels, threaded sections, and lateral lumens.

Breakaway pedicle screw heads separate upon force application, enabling rod insertion through small incisions and reducing tissue trauma.

A polyaxial pedicle screw uses a plunger and locking element to create provisional friction for temporary fixation.

A bone fixation device transforms from flexible to rigid for intramedullary deployment.

Integral keys stabilize wedge-shaped implants in tibial osteotomies, preventing segment displacement while minimizing soft tissue trauma.

A variable angle orthopedic anchor assembly uses a spherical head and resilient fingers to secure fixation devices.

Adapter mounts tracking target to surgical instrument shaft via collet clamp, maintaining line of sight during rotation.

An angle locking sleeve secures clamping elements at a fixed orientation, enabling preoperative alignment that reduces surgical complexity and operation time.

A bone marrow access apparatus uses a cap with a projection fitting into a head portion recess to enable repeated medical sampling.

Segmented positioning rings and nested grooves resolve the trade-off between fixation reliability and side wall strength in spinal implants.

Independent connecting parts enable pivoting engagement on the iliac rod while maintaining axial resistance against repeated patient movements.

Curved bridge and step-down region contour the staple to reduce soft tissue irritation while enhancing boney ingrowth support.

An asymmetric aiming plate with divergent through holes prevents incorrect hole selection and drill bit collisions with the intramedullary nail.

A spinal setscrew integrates a gauge to measure connection force between the rod and bone fastener.

A bone fixation device uses a sliding securing plate to absorb rotational forces and prevent tilting of bone fragments.

Segmented screw assembly and hinged support invert posterior muscle detachment, reducing blood loss during implantation.

Portal tube and concentric guide tubes enable precise drilling and implant placement in the sacroiliac joint.

A spinal correction apparatus uses a ratchet mechanism to enable incremental lengthening of the longitudinal element relative to the body.

A spinal fixation system with a pivoting screw assembly resolves structural stability versus multi-plane adaptability by allowing precise angular positioning.

Interposing a resorbable barrier between the disc annulus opening and osteogenic material resolves retention trade-offs in minimally-invasive spinal fusion.

Drill guide pre-establishes screw trajectory via positioning element, reducing invasive tissue damage during ankle joint replacement.

A retrograde intramedullary nail with a mechanical connection to a femoral neck screw enables precise osteosynthesis.

A dynamic spinal implant uses an inverted serpentine geometry to accommodate multi-axis motion through torsion rather than compression.

An orthopedic revision connector uses an L-shaped leg channel and locking member to attach to existing bone fixation members.

Dynamic anchors allow controlled motion within pre-selected limits, resolving the trade-off between structural stability and natural spinal growth.

Rotatable crown with lateral slots enables precise angulation, resolving alignment complexity in spinal fixation.