Internal Osteosythesis TRIZ Cases

Twisted blade surfaces and a threaded bushing resolve the contradiction between stability and pullout strength in osteoporotic bone fixation.

A multi-functional surgical instrument adjusts vertebral implant length and curvature for precise positioning.

A spinal implant for facet joint fusion uses frictional retaining features and securement apertures to anchor within the joint.

A sliding stopper element on spinal attachment members accommodates anatomical variations, eliminating the need for laminectomy.

A cannulated removal screw advances over a navigated guidewire to engage the implant, reducing bone damage during extraction.

A universal FORS insert embeds an optical sensor inside surgical instrument lumens to enable flexible shape tracking without external attachments.

Segmented spacer with nested actuator clamps onto spinous processes to stabilize spine.

Graded elasticity in a hip prosthesis absorbs shock to reduce fixation strain and prevent loosening.

Segmented attachment prevents screw over-tightening and improper seating while ensuring stable fusion fixation.

Open porous metal implant provides bone and soft tissue ingrowth through distinct pore structures.

A spinal fixation device with a flexible tail navigates osseous tissue to enhance insertion accuracy.

A spinal bone fixation fastener employs an integral locking mechanism to secure the device within the stratum.

A hollow supporting member with guide and engaging features enables sequential implantation of nested segments through a single pedicle pathway.

A multi-functional spinal stabilization system uses flexible and rigid rod segments to preserve motion at one vertebral level while preventing it at another.

A bottom-loading orthopedic fixation device inserts bone fasteners through a coupling element bore.

Split proximal hole enables selective cephalic screw engagement for parallel or convergent orientations.

A surgical instrument integrates reduction, distraction, and compression mechanisms within a single handle assembly.

Reinforcing elements with higher rigidity prevent deformation and jamming in implant systems.

A subcutaneous distraction device uses a threaded drive rod to extend extension arms and apply corrective force to the spine.

Additive manufacturing creates a porous surface on the bone screw threads, resolving coating delamination risks while increasing surface area for bony fixation.

Pre-assembled modular vertebral stabilizers attach to implanted screws without intraoperative threading, reducing surgical invasiveness.

Notched demineralized allograft fusion strips prevent material migration during sternotomy repair while promoting host bone integration.

A tissue matrix with interlocking tabs and slits secures biological structures without sutures.

A light-conducting fiber cures an injectable photopolymer within an expandable body to restore anatomical angles without invasive hardware.

A polyaxial screw incorporates a helical spring friction device between anchoring parts to enable vertical translation and angular pivoting.

Locking pin rotates blocking surface against deflectable flange to secure screws and resolve stability trade-offs.

Segmentation principles allow the spacer and plate to decouple after delivery, resolving the trade-off between structural stability and surgical flexibility.

A vertebral stabilization method uses dual tissue corridors to place bone fasteners for spinal fixation.

A hip prosthesis uses a strain-responsive releasing member to detach components under excessive load.

Segmenting the bone screw head allows a self-securing cap to lock rods in place, eliminating torsional force and reducing surgical complexity.

A vertebral probe uses a distal shelf to control insertion depth during spinal procedures.

A vertebral anchoring assembly uses a perpendicular tightening member to immobilize the fixation rod.

An elastomeric dynamic member permits spinal rod translation to reduce adjacent segment disease risk while maintaining structural stability.

A syringe device featuring a curved barrel and plunger mechanism designed for delivering osteogenic materials through minimally invasive access pathways.

A flexible intramedullary shaft adapts its shape to navigate curved medullary canals for secure bone segment fixation.

Multi-planar tether adjustment resolves the trade-off between alignment flexibility and stabilization reliability in complex spinal disorders.

Nanofeatured implant surfaces reduce bacterial adhesion and growth while promoting osteointegration without antibiotics.

Angled fastener bore and lateral outrigger enable reproducible screw angles to reduce stress on adjacent spinal levels.

Axial insertion of an oblique pressure piece eliminates lateral fork head openings, resolving the stability versus ease of operation trade-off.

A spoon and handle tool reduces scaphoid fractures by lifting bone fragments through small incisions.

A minimally invasive inserter and driver system transitions an interspinous spacer from undeployed to deployed configuration.

A parallelepiped intervertebral cage uses an integrated closure plate and stop barbs to maintain dimensional stability during cervical fusion.

A threaded extension rod and reassembly nut enable precise pedicle screw repositioning in vertebral osteosynthesis equipment.

A bone expandable device uses a retractable member to adjust expansion height and maintain space for bone cement injection.

A rod reduction tool aligns connecting rods with pedicle screw towers using an elongate shaft and clamping mechanism.

A titanium laminoplasty hinged plate integrates a solid spacer into its base to maintain spinal spacing and promote bone growth.

A radially deformable ring element compresses against an anchoring element head to secure the implant.

Resilient S-shaped interspinous implant couples modular members to distribute spinal loads across extensions engaging spinous processes.

Rotating broaching member displaces bone material to prepare precise cavities, reducing thermal damage from high-energy drilling.