6 results about "During ambulation" patented technology

The invention discloses a therapeutic footwear system comprising a footwear body (101) with insole (102), midsole (103), and outsole (105), integrated with a multi-modal sensor array (110) including a plantar pressure matrix (111), inertial measurement unit (112), photoplethysmography sensor (113) and temperature sensor (114). An embedded processor (120) houses an adaptive sampling module (121), an edge-AI inference engine (122), a federated learning client (123), and memory (124) for local analysis. A feedback interface (130) with zonal haptic actuators (131) under medial forefoot (132), lateral forefoot (133), medial heel, and lateral heel (135) delivers corrective prompts. A power subsystem (140) comprising a battery management circuit (141), energy harvesting elements (142), and battery (143) sustains operation. The integration reduces latency, conserves energy, preserves privacy, and enables closed-loop therapeutic intervention during ambulation.

The invention provides a personalized wheelchair head control and obstacle avoidance scheme based on multiple models, and belongs to the field of rehabilitation auxiliary equipment and intelligent control, and the method comprises the steps: collecting the pitch angle and roll angle information of the head in real time through an inertial sensor module fixed right above the head of a user; transmitting the data to a data processing module for attitude calculation and fusion to obtain a head space attitude; establishing a control model according to individual differences, and selecting according to user reaction capability during advancing; the head posture information is converted into a wheelchair speed instruction through a PID algorithm; and when the obstacle is less than a safety threshold value, forced parking and alarming are carried out. According to the multi-model-based personalized wheelchair head control and obstacle avoidance scheme, the problem that traditional rocker control is unfriendly to people with disabled upper limbs is solved, the defect of a visual control scheme in the aspect of environmental adaptability is overcome, and more convenient, safer and more comfortable wheelchair use experience is provided for users with mobility difficulties.

A prosthetic foot can allow a user to engage in different activity levels, for example, walking and running using the same prosthetic foot. The prosthetic foot can have an elongate sole member, a first upper member, and a second pre-compressed upper member such that a distal end of the second upper member is biased toward the first upper member. A spacer between the distal ends of the first and second upper members can facilitate sliding of the distal end of the second upper member during ambulation to vary the stiffness of the foot. The spacer can also improve the lever arm length of the second upper member by maintaining a gap between the first and second upper members throughout ambulation.

A powered lower limb assistive device such as a knee exoskeleton includes an articulated frame having a pivot joint and employs a task-adaptive energy-shaping control scheme to modulate torque at the pivot joint. The control scheme employs a single control law based on a combination of a task-adaptive stance torque function (Tst) and a task-invariant swing torque function (Tsd) and operates without discrete identification of gait phase. The control law is based in part on torque basis functions for at least one virtual spring, at least one virtual damper, gravity compensation, and / or inertial compensation. A virtual spring can inject energy at the joint at specific times during ambulation making the device particularly suitable for reducing user muscle fatigue during lifting, lowering, and carrying (LLC) tasks and encouraging injury-reducing lifting and lowering techniques.

The utility model discloses a hand-push type upper limb balance training vehicle, and relates to the field of rehabilitation instruments. The electric bicycle comprises a bicycle frame, a horizontal sensor, a controller, a voice player and a storage battery are integrated on the upper portion of the bicycle frame, a supporting arm is further hinged to the upper portion of the bicycle frame, a handle is hinged to the free end of the supporting arm, a balance wheel and auxiliary wheels are rotationally arranged on the lower portion of the bicycle frame, and the auxiliary wheels are symmetrically arranged on the two sides of the balance wheel and have the lifting freedom degree. Counterweight mounting positions are further arranged on the two sides of the balance wheel. The training vehicle has the advantages that the balance weight difference is manufactured on the two sides of the training vehicle, continuous strength output of the side, with the weak strength, of the upper limb of a patient is stimulated, the balance state of the training vehicle in the advancing process is maintained, therefore, the efficient training effect is achieved, and in the training process, the training interestingness is improved through voice interaction.

An ambulatory protective device is configured to be worn on a person's foot who has a foot condition, such as a diabetic foot condition. The ambulatory protective device includes an insole which has viscoelastic inserts located and otherwise disposed relative to non-viscous polymeric foam strata to create zones or areas on the insole characterized by reduced force or contact pressure when subjected to forces from the foot during ambulation when the ambulatory protective device is worn. Such contact-pressure reducing areas are located in the heel area and the forefoot area of the device. The ambulatory protective device, equipped with such insole, may be in the form of a shoe, boot, brace, cast, or walker, such as a CAM walker.