External Osteosynthesis TRIZ Cases
- Knee Joint Distractor With Polycentric Motion and Cartilage Unloading
A temporary external knee distractor uses threaded rods and a rotating joint to unload cartilage while preserving natural motion during healing.
- Craniofacial External Distractor for Precise Multi-Axis Bone Movement
Motor-driven movable distractors and direct rod coupling improve craniofacial bone positioning accuracy while reducing complications.
- External Bone Distractor Ring Lock to Prevent Accidental Adjustment
A spring-loaded adjustment ring with notch-groove engagement prevents unintended external bone distractor activation and preserves stable incremental distraction.
- Universal Fixator Clamp With Tool-Locked Anti-Loosening Head
Complementary head recesses and a dedicated torquing tool stop patient loosening while maintaining secure, low-cost fracture fixation.
- External Bone Fixator Hinge With Tool-Free Precision Clamping
Collapsible torque-amplifying levers and a screw joint enable tool-free external fixation with precise clamping and reduced loosening risk.
- External Bone Fixator Multi-Clamp With Tool-Free Torque Knobs
Hand-operated torque knobs let one multi-clamp precisely secure multiple bone pins without tools, reducing loosening risk in austere settings.
- Intramedullary Osteotomy Shifter for Precise Hallux Valgus Fixation
An intramedullary hook, wedge, and targeting arm enable controlled fragment lateralization and accurate screw placement in hallux valgus osteotomy.
- Correction Clamp Assembly for Minimally Invasive Bunion Alignment
Sliding and rotating clamp blocks reposition and temporarily fix bone during bunion surgery while reducing soft tissue trauma and healing time.
- External Fixation Clamp Assembly for Single-Step Rod Locking
A movable securing assembly locks fixation rods and prevents clamp rotation, cutting surgical setup time and reducing side-specific inventory.
- External Bone Fixation Structure With Integrated Threaded Slots
Integrated threaded rod and pin slots replace separate steel nuts, cutting fixation weight and application time while preserving stable limb support.
- External Fixator Clamp Assembly With Spring Pre-Tensioning
Spring pre-tensioning and a threaded tension element simplify external fixator clamp assembly while maintaining stable pin and rod fixation.
- Motor-Driven Fracture Fixator With Closed-Loop Micromotion Control
Closed-loop servo micromotion at the fracture site improves control of displacement and frequency to accelerate healing and reduce nonunion.
- Ratcheting External Fixation Assembly for Controlled Bone Compression
A ratchet assembly enables controlled bone compression or distraction while improving fixation stability and reducing reliance on patient compliance.
- Knee Joint Distractor With Natural Motion and Cartilage Unloading
A six-degree-of-freedom external knee distractor unloads cartilage while preserving natural joint motion during osteoarthritis or fracture treatment.
- Circular Fixator Ring Structure for Secure Wire Fixation
Slots, recesses, and pre-loaded bolts help circular fixator rings prevent wire slippage while enabling faster orthopedic frame assembly.
- External Fixator Joint With Frustum Friction for Bone Alignment
Frustum-shaped friction surfaces let an external fixator joint hold bone fragments securely while allowing smooth, continuous angular alignment.