Lower limb muscle flexion and extension power-assisting device and optimal design method

Abstract

The invention discloses a lower limb muscle flexion and extension power-assisting device and an optimal design method. The lower limb muscle flexion and extension power-assisting device comprises a waist binding band, rigid brackets, an upper hinge supporting seat, a first lower hinge supporting seat, a pneumatic supporting rod, a supporting body, wherein the waist binding band is worn on the waist of a human body; the rigid brackets are symmetrically arranged on two sides of the human body; the upper parts of the rigid brackets are fixedly connected with the waist binding band; the upper hinge supporting seat is mounted below the rigid brackets; the first lower hinge supporting seat is worn on a knee joint of the human body; two ends of the pneumatic supporting rod are respectively hingedto the upper hinge supporting seat and the first lower hinge supporting seat; the pneumatic supporting rod is located in a plane perpendicular to the ground; and the supporting body is arranged between a knee joint and a sole of the human body, and can perform swinging forwards along with the flexion and extension of a shank of the human body. Through the adoption of the lower limb muscle flexionand extension power-assisting device disclosed by the invention, the own gravity moment of lower limbs at different flexion and extension positions can be effectively balanced, and the performance requirements of lower limb muscles for rehabilitation and nursing for compact space, good balancing effect of the gravity moment, low energy consumption for driving the lower limbs, quick movement starting and no movement interference are met.

Description

technical field [0001] The invention relates to the technical field of human rehabilitation and nursing, in particular to an assisting device for flexion and extension of lower limb muscles and an optimal design method. Background technique [0002] There are many elderly people or patients with lower limb muscle weakness who need to be rehabilitated. Because of the decline in their own muscle strength, they cannot provide enough dynamic torque to lift the lower limbs, and cannot complete the lower limb flexion and extension during walking. Encountered the problem that the lower limbs could not be lifted and the soles of the feet dragged on the ground. Impediments to walking can make patients prone to tripping, which will cause great trouble to their functional training or walking care. Provide a wearable lower limb muscle flexion and extension assist mechanism, so that such personnel can effectively counteract the action on the hip joint when lifting the lower limbs with t...

AI Technical Summary

Problems solved by technology

[0002] There are many elderly people or patients with lower limb muscle weakness who need to be rehabilitated. Because of the decline in their own muscle strength, they cannot provide enough dynamic torque to lift the lower limbs, and cannot complete the lower limb flexion and extension during walking. Encountered the problem that the lower limbs cannot be lifted and the soles of the feet are dragging on the ground

Impediments to walking will make patients prone to tripping, which will cause great trouble to their functional training or walking care

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