Joint Implants TRIZ Cases

A drive shaft with a cam applies parallel force to separate implant sleeves.

Deflectable segment sequences enable precise tissue distraction and angular correction without complex telescopic mechanisms.

Independent members adapt to vertebral curvature, eliminating gaps and preventing dislocation.

An offset impaction tool guides bone material into metaphyseal defects to resolve the trade-off between precise filling and ease of introduction.

A capture element engages a hinge post to limit distraction between femoral and tibial components, preventing luxation when soft tissue is insufficient.

An insulating spacer isolates the wireless device from the conductive stem, restricting signal range and preventing interference from surrounding tissues.

A universal orthopedic implant package uses a segmented plastic insert to hold femoral stems securely.

A knee joint implant uses varied curvature radii on femoral and bearing components to create multi-point contact during extension.

Multiple fixation channels distribute forces across healthy bone regions, mitigating deterioration and extending prosthesis longevity.

A knee prosthesis with a rotatable post couples to an insert extension to articulate with the femoral component.

Ultrasonic welding joins degradable polymer buttress pads to surgical stapler components, eliminating secondary release materials and reducing firing forces.

Angled center peg on retroversion glenoid component accommodates scapular bone geometry, reducing excision while maintaining shoulder kinematics.

A flexible bridge enables reversible elastic transition between linear and curved shapes for spinal implants.

Progressive mold advancement compresses antibiotic beads into a unitary tibial component, eliminating messy doughy cement handling during orthopedic surgery.

A universal surgical trial enables continuous angle adjustment through a pivoting head mechanism.

Integrated guides deploy upper and lower anchors simultaneously to stabilize adjacent vertebras, reducing surgical time and incisions.

An externally positioned worm mechanism reduces longitudinal space within prosthetic digits, enabling compact designs for children.

Segmented tibial bearings accommodate patient anatomy while a locking mechanism maintains stability.

A porous hip stem employs a polymer matrix layer to join the core and metal surface, preserving core fatigue strength while enabling precise tactile alignment.

A cadaver meniscus implant restores hand joint function using biological tissue integration.

A pneumatic surgical instrument drives orthopedic implants using controlled shockwaves from a gas-powered piston striker.

Biconvex femoral and dished tibial implants match natural joint surfaces to reduce interface micromotion and bone resorption.

A surgical instrument shaft defines an internal fluid channel to deliver hydraulic pressure toward a spinal implant.

Segmented components with matched curvatures replicate healthy disc anatomy, reducing adjacent level stress while maintaining stability.

Segmented porous rim improves adhesive penetration while reducing material costs and maintaining structural integrity.

Encasing a lower modulus portion within a higher modulus portion maintains congruent contact across joint movement ranges.

A medical implant substrate features undulating peaks and recesses to anchor sintered particles for tissue ingrowth.

A polymer composition prevents agglomerate formation and blooming in orthopedic devices.

Segmented offset keels secure knee prostheses to bone, reducing bone resection volume during revision.

Oblique edges on a polyethylene knee prosthetic plate eliminate locking mechanisms to reduce backside wear while enabling 150-degree flexion.

Interlocking pins and a guillotine lock stabilize acetabular cups while enabling rapid disengagement to prevent misalignments.

A ratchet mechanism locks the relative position of an expandable spinal spacer's upper and lower bodies, preventing dislocation during bone growth.

A monorail distractor provides controlled instrument delivery for spinal fusion procedures.

Exposed gear teeth enable tool access for in vivo expansion, balancing structural integrity against operational complexity.

A tuning-fork instrument rotates an expandable corpectomy cage through small incisions, eliminating nerve root retraction.

Integrated surgical instrument system secures femoral and tibial prosthetic components via modular carriers.

Telescoping tubular member with incremental locking prevents component disengagement and stabilizes the shaft without obstructing the surgeon's line of sight.

Customized surgical instruments match patient bone contours using additive manufacturing.

A bone graft delivery revolver uses a rotating magazine to pack and discharge material into a tube.

A robotic suction cup applies controlled motion to the ocular surface while load cells quantify orbital soft tissue resistance.

A modular radial head implant combines a metal body with a polyethylene plug to restore elbow joint stability.

Working channel assembly integrates abrading device and slide hammer mechanism for sacroiliac joint fusion procedures.