Internal Osteosythesis TRIZ Cases

A transverse connector system uses dual locking heads and pivot arms to simultaneously secure transverse and elongated rods.

A surgical instrument uses flexible arms and a plunger to couple and lock orthopedic receivers.

Nested sliding and rotation parts in the adjuster improve femur fixation reliability without increasing overall length.

Segmented vertebral implants correct spondylolisthesis via a sliding reducing plate, resolving post-surgical instability risks.

Segmented struts expand within the spinal canal to relieve pressure on the spinal cord while avoiding large surgical incisions.

A bone fixation locking member uses a toothed stem and biasing member to prevent reverse translation, reducing tissue irritation.

An undercutting system creates an ilium aperture for perpendicular sacroiliac joint access.

Plastic cable ties replace rigid wires to immobilize jaw fractures, eliminating gum trauma and surgical sharps risks.

A customizable intraoperative mold system with standoff tabs and flexible molds achieves uniform antibiotic coating on implants.

Nested locking components resolve stability-complexity contradictions by restricting translational and orbital motion in spinal fixation systems.

A spinal correction implant uses a ratcheting mechanism to incrementally lengthen a growing rod for pediatric deformity support.

A cannulated orthopedic screw uses a segmented shaft with a large proximal segment and threaded distal segment to anchor bone fragments.

A porous mold containing antibiotic bone cement enables diffusion to the femoral cavity while preventing direct cement contact with bone tissue.

Pivotable and tiltable plate heads enable pre-reduction application, resolving the trade-off between ease of operation and stability of unstable bone fragments.

A distensible ligament system uses a variable receiver mechanism to adjust tension in vivo.

Light radiators form intersection lines indicating drill insertion points, eliminating X-ray radiation exposure during bone fixation procedures.

A femoral cutting block with an offset guide determines implant orientation.

A screw insertion instrument uses a stylet extending beyond the driver to engage pedicle screws securely.

A polyaxial bone anchoring device uses a pressure element with lugs to clamp the head by friction.

A modular spinal implant uses a swivel drive mechanism to adjust screw configurations during surgery.

A stadium-shaped fixation member prevents posterior migration by engaging articular surfaces with a tapered, anti-migration section.

Transverse support posts and set screws secure fracture fragments through small incisions, reducing wound complications.

A surgical kit uses a sliding central plate to maintain anatomical alignment between fixed lateral plates during bone shortening.

A bone implant system with a rectilinear stem and tulip structure enables stable spinal fixation through minimally invasive lateral approaches.

Monolithic polymeric vertebral retaining devices with pivotable jaws and locking assemblies enable precise distraction during spinal fixation procedures.

Extended interbody implant endcaps with rotate and lock mechanisms resist torsional forces, preventing subsidence during lateral bending.

Nickel-titanium shape memory alloy intramedullary devices contract to sustain compressive forces across bone fusion sites despite resorption.

A basket portion covers the lesser trochanter while a buttress plate secures the femoral shaft to stabilize hip replacement implants.

Threaded slots and modular segments adjust length and orientation, resolving insertion difficulties and soft tissue irritation during fracture fixation.

A tracking capsule with transverse openings enables scanning of medical devices during fluid sterilization cycles.

Porous facet joint implants retain bone growth promoting substances within interior cavities, preventing dispersion caused by fibrous tissue and muscle contact.

Segmented fixation via a rotatable receiver member and auxiliary anchors overcomes compromised insertion trajectories.

Alignment guide enables precise targeting of subchondral bone defects, avoiding invasive joint replacement procedures.

Segmented bone plates allow lateral fastener motion to stabilize greater trochanter fractures without blocking movement.

A catheter-delivered expandable spacing device creates void volume inside the disc without removing nucleus pulposus tissue, preserving annular strength.

Segmented intervertebral spacers use flexible links to conform to curved spaces, reducing tissue disruption during minimally invasive insertion.

A curved intramedullary pin with a complementary clamp stabilizes bone fragments within the medullary cavity.

A crimping apparatus with a central passage and collet member tensions cables through bone.

An alignment linkage ensures parallel extender positioning to project anatomic points outside the body for precise rod contouring.

A spinal fixation device uses a pivot inhibitor to restrict screw head rotation within a dual-layered housing system.

A spinal implant features a cannulated elongate member and a polyaxial stabilization member with expandable arms for secure facet joint fixation.

An elastic strand inside a polymer envelope adapts to natural lordosis and resists torsion while reducing invasiveness.

A pre-curved malleable band with bone engaging structures applies compressive clamping force to stabilize bone fragments.

Recessed guiding grooves on artificial nails provide clear structural paths for drawing patterns and mounting decorative pieces.

Relief cuts in segmented spinal implants accept shims to resolve the trade-off between structural strength and adaptability to vertebral movements.

Alignment clip centers and positions cervical plates on interbody cages, eliminating temporary fixation pins to prevent malpositioning.

An intramedullary nail uses a rotational to linear motion convertor mechanism to vary distance between bone segments, resolving device complexity trade-offs.