Internal Osteosythesis TRIZ Cases

A craniospinal fusion plate uses a graft accommodation space to promote bone growth and stabilize the occipitocervical junction.

A laminar fixation implant anchors a spine rod using a tensioned tape routed through an integrated passage and secured by a movable plate.

A decoupled rod reducer separates the driver shaft from the ram to advance set screws independently of reduction loads.

An elastic tether structure couples adjacent spinous processes to provide controlled resistance against spinal flexion.

Revision components attach to existing spinal arthroplasty implants to reduce motion between vertebrae without full removal.

A compression reduction driver applies independent biasing force to bone segments while inserting fixation devices.

Automated implant bending device uses sensors to detect contact and measure actual curvature during spinal rod manipulation.

Hooks on opposing plates engage sternum halves while a reduction tool applies equal forces, preventing wire penetration and stabilizing movement.

Covering portions wrap vertebral arches while a joint allows relative movement, preventing nerve damage and mechanical stress.

Off-center hinge and arresting mechanism enable adjustable vertebral distraction without screw fixation, resolving stability versus complexity trade-offs.

Segmented tubular members enable capless spinal screw rotation during tissue retraction.

A rotatable spinal cage establishes intervertebral height and compression during implantation.

Retainer plates and push plates reduce spacer migration and spine stress during fusion.

An asymmetric cutting tool prepares the sacroiliac joint by aggressively abrading the ilium while protecting the softer sacrum, reducing nerve damage risk.

An auto-locking ratchet assembly in a spinal persuader maintains vertebral alignment during rod insertion, preventing component spreading.

Radial elevations on the locking screw form-fit engage the rod, preventing unintentional loosening during spinal movement.

Electronic sensing replaces manual alignment to maintain precise pedicle screw trajectories, reducing radiation exposure and preventing wall breaches.

Simultaneous drive wheel rotation bends surgical rods uniformly, reducing physical effort and eliminating segmented curvature.

An L-shaped plate secures the metatarsal head before osteotomy to enable precise rotational control during bunion correction surgery.

A surgical drill guide uses a rumble strip mechanism to provide tactile and auditory feedback during drilling operations.

A vertebral assist device uses an actuating system to dynamically control alignment of support sections.

An asymmetric body profile reduces adjacent segment degeneration while the movable cover prevents screw escape.

Sliding implant bodies with interlocking teeth resolve the trade-off between structural stability and surgical ease of adjustment.

Ratchet members on a flexible band interlock with a head lock member to prevent slipping during one-handed tissue ligation.

Segmented arc needle and matching guide unit transmit force through deforming skin to resolve insertion reliability contradictions.

A spinal connecting element varies cross-section to modulate stiffness along its longitudinal axis while maintaining a uniform bone screw interface.

Electromagnetic tracking replaces fluoroscopy to align pedicle screws, reducing radiation exposure while maintaining surgical precision.

A spinal implant collet frictionally engages a rod via radial compression to secure fixation without setscrews.

A spinous process fusion device clamps adjacent vertebrae using a ratcheting lock mechanism to secure wings in place.

A uniplanar bone anchor system uses a saddle and coupling mechanism to permit controlled single-plane movement of the fastener head.

A bone fixation rod with contoured segments and an implantation instrument featuring opposing jaws that enable incremental angular adjustments during insertion.

Elastic cross bars and scissor clamps resolve the rigidity trade-off, enabling easy installation while maintaining structural strength.

Nested shaft assembly aligns spinal fixation rods within slotted implants, resolving misalignment difficulties during corrective surgery.

Segmented segments rotate independently to orient screw heads, resolving adaptability versus complexity trade-offs.

An extension ready spinal support system mounts directly to existing base rod receptacles using a surrounding skirt portion.

Retractable shape memory elements expand to grip the medullary canal, eliminating bone screws and stabilizing fractures under axial stress.

Rotating semi-cylindrical tissue protectors prevent soft tissue entanglement during bone fracture repair.

A single-hand osteotomy instrument uses a dial to laterally displace pivotable arm assemblies for precise pedicle screw positioning.

A force concentrator attached to loadbearing medical devices produces transverse forces from eccentric axial loads for precise sensor measurement.

Flange-shaped outer sections bear against thicker bony portions of spinous processes to support mechanical loads.

A bone marrow aspiration adaptor connects to existing spinal instrumentation to harvest marrow cells through a sealed lumen.

Bottom-loading tulip assemblies attach to bone fasteners from below, improving surgical visualization and reducing inventory costs for spinal stabilization.

A surgical instrument merges forceps and a pusher shaft to manipulate hook implants.

A surgical distraction instrument expands the vertebral arch using elastic deformation and controlled lever mechanics.

A computer-assisted surgery system uses virtual representations to guide medical device placement.

A segmented spinal insert deploys washer-like elements within the intervertebral space to provide structural support.

A vertebral connecting assembly uses a threaded pin and nut to secure bars and ligaments through lateral conduits.

Modular anchor assemblies enable customizable dual screw-single rod configurations for lateral spinal stabilization.