Artificial Legs TRIZ Cases
- Prosthetic Running Blade with Deployable Heel Attachment
A prosthetic running blade features a manually shiftable heel attachment that transitions between stowed and deployed positions.
- Passive Release Device for Prosthetic Foot Dorsal Extension
A prosthetic foot uses a passive release device to switch between locked and released positions based on ankle torque.
- Eccentric Prosthetic Knee Fastening Device for Gait Optimization
An eccentric fastening device with a proximal strut reduces hip-to-knee distance, resolving uneven gait and thigh extension issues.
- Volitional Walking Controller for Powered Prostheses
A powered prosthesis controller modulates knee flexion trajectory using thigh angle feedback to enable volitional foot clearance.
- Powered Ankle-Foot Prosthesis Multi-Axis Impedance Control
Multi-axis impedance modulation in a powered prosthesis reduces metabolic energy consumption during turning by mimicking natural ankle function.
- Vacuum Pump with Spring-Loaded Movable Wall for Prosthetic Socket
A vacuum pump uses a spring-loaded movable wall to expand and contract its fluid chamber, reducing air pressure fluctuations during gait.
- Jointless Prosthetic Foot With Convex Attachment Path
A jointless prosthetic foot uses a convexly curved attachment path to maintain constant foot-strike position during leaf spring flexion.
- External Prosthetic Valve for Quiet Air Pressure Regulation
An external elastomeric valve regulates socket pressure via a low crack threshold, eliminating plugging and noise during gait cycles.
- Inverted Polycentric Linkage Prosthetic Joint
An inverted polycentric linkage prosthetic joint enables deep flexion by routing the first linkage through the space between the pair of linkages.
- Unitary Prosthesis Housing with Curved Hydraulic Passages
Curved hydraulic passages in a unitary prosthesis housing reduce energy losses, extending battery life while simplifying assembly.
- Impedance Control for Lower Limb Assistive Device Power Timing
Adjusting joint impedance parameters via user signals modulates torque output in powered lower limb assistive devices.
- Modular Prosthetic Socket with Adjustable Windows
Segmented prosthetic sockets with adjustable windows enable sensor integration, resolving the trade-off between bespoke fit and component repurposing.
- Adjustable Prosthetic Socket With Articulated Hinge
An adjustable prosthetic socket with an articulated hinge accommodates swelling limbs, eliminating the need for multiple replacement devices.