Artificial Legs TRIZ Cases

Sensors detect residual limb changes and drive panel movement to maintain secure fit without manual intervention.

Segmented liner pads resolve wet environment damage risks while maintaining comfort through interchangeable components.

Coupling system tilts supporting structure relative to sole while maintaining constant distance at the force introduction point.

An artificial leg motion assisting device estimates kinetic parameters to adjust mechanical impedance, reducing wearer discomfort during stair climbing.

A prosthetic ankle prosthesis stores energy in springs during the swing phase to assist plantarflexion.

Segmented composite laminas optimize force distribution and increase horizontal forces by 15% to reduce user fatigue.

Variable drag in a prosthetic limb reduces hip burden by adjusting torque at initial knee bend.

An elastomeric bumper absorbs kickback forces and vibrations, allowing the mounting bracket to replicate natural foot flex and energy return.

A multi-chamber vacuum pump system creates a secure attachment between a prosthetic socket and the residual limb.

Tensioning elastic members collapses the resilient body, enabling quick donning and doffing while maintaining a secure fit on artificial limbs.

Segmented C-shaped springs resolve vertical compliance limits in single-member designs, enabling natural plantar flexion control.

A unitary keel body integrates a flexible ankle portion to simulate anatomical motion without separate rigid components.

A foot prosthesis uses segmented filler pieces to increase flexural rigidity and alter contact processes between upper and lower parts.

A negative gauge pressure dynamic convection system transfers thermal energy from within an artificial limb to the ambient atmosphere through regulated cyclical airflow.

A hydraulic locking mechanism uses fluid pressure to constrain joint movement in one direction while allowing free motion in the opposite.

Adjustable joint axes in a compact ankle prosthesis resolve the trade-off between structural simplicity and terrain adaptability.

Segmenting the prosthetic into standardized components reduces manufacturing time while maintaining customization capability through modular configuration.

Segmented control system applies powered assistance during swing phase to correct motion errors and improve stability.

A prosthetic actuator uses a cantilevered leaf spring to transmit torque through elastic deformation in the plate thickness direction.

A transfemoral prosthetic system synchronizes knee and ankle movement using real-time sensor data to mimic natural gait patterns.

Rear pivot axis and internal bumper reduce unnatural gait on inclines by smoothing plantarflexion resistance.

A prosthesis lever mechanism adjusts the pivot joint axis position relative to the support part.

Magnetic sensing replaces bulky load cells to detect axial and torsional loads, resolving contradictions between measurement precision and device weight.

A hydraulic piston and cylinder assembly provides continuous damping resistance to ankle flexion in lower limb prostheses.

A modular foot controller operates prosthetic tools via Bowden cables and pulleys to restore user capabilities.

A knee rotational adapter uses an automatic locking mechanism to secure prosthetic alignment during weight-bearing activities.

A microprocessor-controlled prosthesis uses a series-elastic actuator with a J-spring to modulate ankle impedance across gait phases.

Segmented resilient members absorb impact forces during the gait cycle, reducing rearward leg kickback and injury risk for amputees.

Segmented traction components attach via strap to resolve the conflict between secure attachment and removability while protecting the foot from wear.

Segmenting torque and motion into two stages reduces actuator weight while maintaining high torque output for powered prostheses.

Radial arc elastic body reduces motor load and volume by replacing linear springs with curved geometry.

Sealing lip creates vacuum seal between flexible inner socket and residual limb, eliminating external cuffs while accommodating volume fluctuations.

An inertial angle sensor detects lower leg orientation to simplify manual adjustment across varying shoe heights.

Segmented rigid components linked by flexible straps accommodate residual limb volume fluctuations, reducing soft tissue pressure and pain.

Segmented liner increases radial thickness at attachment areas to constrain bone motion, resolving socket instability without specialized equipment.

A prosthetic foot uses a leaf spring torsion element to twist and bend, enabling dynamic movement.

Segmented prosthetic foot linkages accommodate uneven terrain stresses, reducing residual limb pain.

A sensor-driven locking device adjusts rigidity based on position signals, resolving manual operation difficulties while preventing falls.

A prosthetic knee joint mechanism uses a hydraulic pilot valve to control fluid flow and stabilize flexion.

Segmented fiber-reinforced resin bonds between foot and shank plates enable independent deflection while maintaining structural integrity during gait cycles.

A prosthetic knee uses a composite spring member to store and return mechanical energy during the gait cycle.

A prosthetic socket interface uses compliant members to accommodate dynamic limb volume changes.

Visual displays replace lost touch sensation by converting pressure sensor signals into color-coded patterns on prosthetic fingers.

A prosthetic ankle cuff combines a flexible base body with an integrated stiffening element to bridge the transition area between foot and leg components.

Segmented hydraulic components with self-service check valves resolve complexity-speed trade-offs, enabling fast gait transitions without power.

A manual prosthetic vacuum pump uses a spring-loaded piston to create immediate socket suspension.

A polycentric knee prosthesis uses a piston and cylinder assembly to adjust hydraulic resistance during gait phases.

Segmented valve membranes reduce air resistance for faster donning while nested housings prevent snagging on protruding components.