Internal Osteosythesis TRIZ Cases
- Orthopedic Rod Locking Aperture Multi-Lead Thread Design
Multi-lead internal threads in orthopedic rod locking apertures improve thread registration and reduce bone damage during fastener installation.
- Interspinous Implants with Deployable Arms
Deployable engagement arms transition from a stowed position to stabilize spinous processes, reducing procedural invasiveness.
- Coupled Intramedullary Nail Shaft for Z-Effect Prevention
Coupled intramedullary nail shafts prevent the z-effect by synchronizing lag and anti-rotation screws through integrated mechanical engagement.
- Adjustable Tongue Implant Anchored by Scar Tissue
Scar tissue anchors a tongue implant with adjustable arms, preventing airway obstruction while preserving swallowing and speech function.
- Articulating Laminoplasty Plates for Spinal Cord Decompression
Articulating laminoplasty plates adjust angularly and transitionally to reduce pressure on the spinal cord and nerve roots.
- Anterior Clivus Plate for C1-C2 Vertebrae Immobilization
Segmented anterior clivus plate with angled fixation resolves C1-C2 instability from rheumatoid arthritis by enabling realignment and structural stability.
- Surgical Handpiece with Nerve Monitoring and Gear Train
A rotary surgical handpiece integrates a gear train for high torque and a stimulator assembly for nerve integrity monitoring.
- Rotational Quick Closure for Spinal Bone Screws
A rotatively attachable quick closure secures connecting elements to bone screws using directional hooks and a filler.
- Self-securing Spinous Process Implant Locking Mechanism
A spinous process implant uses a locking element with integrated securing members to maintain position without manual intervention.
- Retractor Tube Pin Mounting for Guidewire-Free Spinal Surgery
Direct pin mounting of the retractor tube eliminates guidewire steps, reducing procedural time and tissue disruption.
- Variable Wall Spinal Implant for Nerve Pinching Relief
A flexible plastic implant with variable wall thickness creates a pocket shape to maintain proper lateral spacing between vertebrae.
- Flexible Interspinous Spacers with Bullet Nose Ligament Piercing
Unitary flexible spinal spacers accommodate vertebral angulation while maintaining stability through textured surfaces and elastic flex portions.
- Cable Passer Sheath for Minimizing Incision Size
A cable passer sheath engages the device end hole to create a guided pathway for retrograde cable insertion.
- Surgical Mid-Foot Compression Pin Conical Thread Design
A surgical mid-foot compression pin uses a conical rear outer thread to secure anchoring in foot bones.
- Spinal Rod Connector for Collinear Extension
A spinal rod connector assembly extends in situ constructs via nested segments.
- Cardioprotective Patch with Integrated Cutting Guide for Repeat Sternotomy
An integrated cutting guide on a pericardial patch enables precise sternal re-entry and cast removal, reducing skin damage and complication risks.
- Expandable Polyaxial Spinal Pedicle Screw System
An expandable spinal pedicle screw system incorporates polyaxial joints and distraction rods to maintain dynamic motion.
- Surgical Instrument Multi-Lever Clamp for Bone Fixation
A surgical instrument uses a multi-lever assembly to amplify force applied by an actuator through sinusoidal clamping jaws.
- Offset Adapter Unit Neck Fracture Prevention
Expanded screw region steps and covering nuts distribute bending loads to prevent neck fractures in revision knee adapters.