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Two-freedom-degree upper-limb rehabilitation assistive exercise device driven by dielectric EAP (electroactive polymer) and method thereof

A training device and a technology of degrees of freedom, applied in sports accessories, passive exercise equipment, gymnastics equipment, etc., can solve the problems of inconvenience, high price, and large space occupation, and achieve increased safety and comfort, simple operation, and excellent structure. simple effect

Inactive Publication Date: 2013-08-21
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the driving force of the currently developed rehabilitation robots with more degrees of freedom is mainly provided by the motor / gear mechanism, which makes this series of rehabilitation devices expensive and takes up a lot of space.
Rehabilitation devices powered by pneumatic artificial muscles require an accompanying air source, which may also cause corresponding inconveniences

Method used

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  • Two-freedom-degree upper-limb rehabilitation assistive exercise device driven by dielectric EAP (electroactive polymer) and method thereof
  • Two-freedom-degree upper-limb rehabilitation assistive exercise device driven by dielectric EAP (electroactive polymer) and method thereof
  • Two-freedom-degree upper-limb rehabilitation assistive exercise device driven by dielectric EAP (electroactive polymer) and method thereof

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Embodiment Construction

[0021] Such as figure 1 As shown, the auxiliary training device for upper limb rehabilitation of the present invention has two rotational degrees of freedom, that is, rotation around the x-axis and rotation around the y-axis. The mechanism part is composed of a rocker 1, a connecting ring 2, a cross hinge 12, a driver 3, a fixed rod 4, a connecting ring 5, a bracket 8 and a base 10. Wherein the rocker 1 is installed on the bracket through the cross hinge 12, and two encoders II and 6 are respectively installed on the two rotation axes of the cross hinge, which are respectively used to detect the rotation angle of the rocker around the x and y axes. A set of drivers is arranged between each pair of fixed rods 4 and rocker 1, and each set of drivers includes 2n drivers 3, which are symmetrically arranged on both sides relative to rocker 1, and symmetrically arranged when the drivers on the same side are arranged up and down relative to the rotation center of the rocker. Wherein...

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Abstract

The invention discloses an upper-limb rehabilitation assistive exercise device driven by a dielectric EAP (Electroactive Polymer) and a method thereof, which relate to a medical rehabilitation appliance. The upper-limb rehabilitation assistive exercise device comprises a rocker, a cross hinge, a driver, a fixing rod, a connecting ring, a bracket and a base. The method comprises two exercise modes: in a passive exercise mode, changing an actual output moment of a driver set by changing voltage applied to the driver and an applying sequence in order to realize the rotation of the rocker, thereby driving the upper limbs of a patient to move; and in an active exercise mode, changing the actual output moment of the driver set by changing the voltage applied to the driver and the applying sequence, using the actual output moment as a damping moment, and overcoming the damping moment by moving the upper limbs of the patient in order to reversely rotate the rocker. The invention has the advantages of simple structure, convenient use, small size, low machining accuracy requirement and low cost; the characteristics of the dielectric EAP are similar to the characteristics of human muscle, and the flexible driving characteristic of the dielectric EAP increases the safety and the comfort of a rehabilitation exercise process.

Description

technical field [0001] The invention relates to an auxiliary training device for upper limb rehabilitation driven by a dielectric type EAP, which belongs to the technical field of medical rehabilitation equipment. Background technique [0002] Stroke, commonly known as apoplexy, has an acute onset, and severe cases manifest as hemiplegia, aphasia, coma or even death. According to the results of the third national cause of death survey in my country, stroke has become the number one cause of death in China. The monitoring results of the past two decades show that the annual death toll of stroke exceeds 2 million, with an annual growth rate of 8.7%. In addition to the high fatality rate, stroke also has the characteristics of high disability rate and high recurrence rate, which seriously threatens the life and quality of life of the people. According to the survey of the National Cardiovascular Professional Committee, 3 / 4 of the surviving stroke patients in the country suffe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61H1/02A63B23/12
Inventor 王化明杨斌吴孟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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