Internal Osteosythesis TRIZ Cases

A sacroiliac joint implant uses a planar member with tapered holes to receive fastening elements for rigid fixation.

A spinal distraction system uses a spring mechanism to enable continuous vertebral elongation while reducing tissue strain from repeated surgeries.

A reamer instrument integrates a movable shaft and indicator to provide real-time visual feedback during bone removal.

A bone fixation instrument uses a ratchet mechanism to apply precise tension, preventing wire breakage during sternal compression.

Articulating grippers and a polyaxial end cap stabilize fifth metatarsal fractures while eliminating soft tissue damage from rigid rods.

Segmented incisions and intermediary guides reduce tissue trauma while enabling precise rod connection to implants at varying depths.

A minimally invasive interbody device rotates from a narrow insertion profile to a wide configuration within the disc space.

Segmented rigid screw receivers preserve aperture precision while the pliable connecting arm bends to contour the bone, preventing distortion.

Adjustable arms and a fulcrum contour spinal implants to reduce manual alignment errors.

A flowable, hardenable composition expands the spinal canal and stabilizes the lamina while eliminating tissue damage from rigid implants.

A magnetically actuated expandable spinal rod uses a gear reduction mechanism to adjust length.

Anterior cervical plate enables transarticular screw fixation via Smith-Robinson approach, avoiding posterior wound healing risks.

A bone bridge unifies multiple vertebrae into one tracking unit, eliminating frequent re-registration caused by intervertebral movement.

A dynamic bone anchor uses a nickel-titanium core member to enable rotational and translational movements within the spinal structure.

A bone anchor features a solid stabilizing portion connecting attachment openings to secure orthopedic devices.

A rotatable collar deflects tabs to align a rod reducer with spinal fasteners, resolving awkward access angles in minimally invasive surgery.

Nested cannulated instruments guide implant placement through small incisions, reducing tissue trauma while maintaining precise vertebral stabilization.

Implanted fastener assemblies apply internal tensile forces to distract hip joints, reducing collateral damage to peripheral nerves and tissues.

Integrated spinal implant driver resists cement injection forces through a secure mating mechanism between inner and outer sleeves.

Complementary ridges on a detent plate and set screw prevent unwanted loosening, resisting rod slippage in spinal fixation systems.

Pivot connections between the bridge and rod eliminate bending stress, preventing material fatigue during installation.

Segmented snap-fit connections resolve the trade-off between surgical stability and instrument reusability for distal locking screw targeting.

Segmenting the joint fusion and anchor portions resolves installation difficulties while preventing hardware failure at the ilium attachment point.

A screen-mounted template with a compass guide overlays fluoroscopy displays to orient surgical implants.

Segmented connector design allows post-surgical rod length adjustment without additional incisions, reducing tissue trauma and eliminating repeat surgeries.

Polyaxial heads and adjustable members maintain alignment with the center of rotation during three-dimensional movement.

Spherical curvature openings in bone fixation plates prevent screw backout through mechanical interference, accommodating micromotion during vertebral healing.

Collet-style connection mechanism locks first and second members to secure spinal implants during surgical procedures.

A handheld surgical device integrates nerve proximity detection and digital depth sensing for bone implant fixation.

A surgical implant handle guides bone portions into position using a removable spacer tool.

An oblique lateral spinal implant system uses specialized instrumentation to access intervertebral spaces.

A variable-length spinal rod uses a ratchet mechanism to adjust implant length during surgery.

Divergent screws maximize embedded depth in dense bone, preventing loosening and improving structural integrity.

Segmented support plates with perpendicular posterior faces anchor fragile humeral heads, reducing prosthetic complexity.

A pedicle screw tulip uses a coupling collar with resilient fingers to snap fit the screw head and deformable faces to grip the rod.

Telescopic tubes with ratchet teeth enable precise length adjustment for complex bone fractures.

Flexible attachment elements anchor to spinal pedicles via posterior access, reducing vertebral weakening and surgical distress.

Thread recesses create sharper cutting edges to reduce insertion torque and eliminate pilot hole preparation steps.

An integrated dual rod spinal construct merges parallel rods with lateral arms to increase structural stiffness and fatigue resistance.

Spinal rods with internal channels provide different flexural rigidities along major and minor axes, enabling surgeons to control anatomic motion post-surgery.

A vertebral staple uses a central spike to rotate the body during partial insertion for precise bone alignment.

Sliding lock mechanism replaces threaded fixation to resolve assembly speed and reliability trade-off.

A toe fixation prosthesis uses a threaded coupling member on an anchor ramp to compress bones together.

A vertebral implant connector features a rotatable receiver for selective angular fixation of spinal rods.

A swivel distractor system with a pivotal distraction portion and rigid handle construct.

A universal transverse connector device uses rotatable rods and grasping members to hold spinal fixation hardware securely.