Artificial Hands TRIZ Cases

A humeral cuff harness uses pivot arms and a cable system to suspend a below-elbow prosthesis without shoulder straps.

A foot controller system uses interactive buttons and inertial sensors to transmit grip and rotation commands to a prosthetic arm.

A finger drive unit converts motor movement into bending motion using a drive rope and movable part for precise prosthetic control.

An artificial hand system uses an intelligent wrist configuration to adjust stiffness dynamically based on detected load weight.

Hydraulic soft actuators and preloaded elastic springs enhance grip strength and range of motion while managing device complexity in wearable rehabilitation.

A prosthetic elbow structure uses concentric driving units with gears to enable joint movement.

An H-shaped rocker in a prosthetic finger anchors to the residual digit, enabling natural dexterity without bulky external power sources.

Digital scanning creates a custom prosthetic finger with an integrated hinge, reducing manufacturing costs while restoring fine motor skills.

A prosthetic digit uses a locking rack mechanism to achieve rapid flexion speeds while resisting extension forces.

A modular upper-limb prosthesis uses a ball joint and shuttle locking mechanism to attach interchangeable tools.

A prosthetic wrist device uses a rack and pinion damping mechanism to balance biasing forces for smoother limb movement.

A single motor drive coordinates bending via differential reset springs, reducing device complexity while maintaining versatile gripping functionality.

A 3D printed prosthetic wrist eliminates motor complexity by using body-powered cables to drive semi-independent finger movement and thumb rotation.

Dynamic hinges and a conductive thread loop restore natural finger motion while enabling capacitive touch screen interaction for amputees.

Segmented digits nest into connector assemblies within the main body, enabling quick component replacement to reduce repair time and user downtime.

Segmenting the mechanism into a fixed passive structure and single active joint reduces manufacturing cost while maintaining versatile hand-like capabilities.

A prosthetic finger uses a mode switch to toggle between gripping and flexion states.

An adjustable ring tendon converts residual finger motion into bidirectional articulation, eliminating bulky motors and restoring dexterity.

Segmented prosthetic arm with harmonic drive gearing overcomes limited degrees of freedom by providing tactile feedback and dynamic support geometry.

An elastic link in a compliant joint enables natural motion while absorbing shocks to improve comfort and reliability.

Integrating anchor points on the backplate with a removable palmar strap creates a secure attachment mechanism.

An underactuated prosthetic hand reduces weight and complexity by merging finger actuation into a single cable system.

Rotatable upper and lower sockets connect to interchangeable attachments while a string tensioning system adjusts gripping magnitude for varied tasks.

Segmented digits and a crushable palm allow the prosthetic hand to grasp irregular objects without complex actuators.

A cap portion with a surrounding flange receives amputated limb skin at a distance from the osseointegrated device stem.

Cable-driven artificial wrists replace complex hinges with elastic tensioning, reducing weight and manufacturing costs while enabling large rotation angles.

A prosthetic finger uses a worm gear and bevel gears to drive knuckles via transmission ropes.

Segmented hand prosthesis drives use elastic force transmission units to resolve the contradiction between mechanical reliability and natural appearance.

An air chamber in a prosthetic hand delivers tactile feedback by inflating based on motor encoder data, restoring grip sensation.

A prosthetic finger uses a balance arm to drive joints with one motor, reducing weight and complexity.

A free tissue graft reinnervated by a nerve fascicle generates amplified electrical signals for implantable recording.

Spring-loaded pawl engages locking rack teeth to stabilize prosthetic digit posture against weak opposition grasp forces in partial hand amputations.

Segmented palm members and self-aligning coupling mechanisms reduce device complexity, allowing rapid fitting without specialized training.

A single electromagnetic actuator controls each prosthetic digit independently, reducing weight and noise while increasing grasping force.

Segmentation principles enable interchangeable activity-specific components on a universal base, reducing material waste from frequent replacements.

Integrating a low-power FPGA controller within the prosthetic hand reduces hardware footprint while maintaining full control functionality.

A prosthesis motor control method applies driving electrical pulses to increase gripping force.

Segmented prosthetic digit uses linkage and locking mechanisms to enable passive grasping.

Segmented 3D-printed polymeric digits and laser-cut metallic components resolve manufacturing cost versus strength trade-offs in prosthetic hands.

A 3D-printed prosthetic socket uses lattice struts and transverse through-openings to receive a lace for circumference adjustment.

Segmented worm gears protect motors from overload while elastic couplings enable natural finger resilience.

Lateral finger grippers apply horizontal force to eliminate vertical compression, preserving tactile feedback and comfort for users with reduced hand strength.

Lateral grippers augment user grip strength via spring energy storage, resolving the trade-off between force and finger mobility.

An artificial tendon-driven prosthesis couples external actuation to residual musculoskeletal structures.

A single linear actuator drives a diverging slot plate to control multiple fingers, reducing device complexity and cost while maintaining high dexterity.

Replacing metal with PETG reduces weight by 85% while V-shaped channels distribute load, resolving friction and pain issues in upper limb prosthetics.

Segmenting the drive from the spring eliminates series connection delays, improving positioning accuracy and energy efficiency.

A hand prosthesis uses a common drive to actuate multiple finger prostheses through directional rotation, reducing control effort and device complexity.

Flexible members and selective locking plates allow natural wrist rotation while accommodating varying bone configurations to resolve dermatological issues.