Variable stiffness software driver and hand rehabilitation training robot using the same

Abstract

The invention provides a variable stiffness soft driver and a hand rehabilitation training robot using the driver, wherein the driver includes: a layered driver body, the driver body is made of elastic material, and the driver is covered with a double helical fiber winding layer , the driver body is provided with an air chamber; a variable stiffness layer is arranged in the middle of the air cavity to separate the air cavity into an upper chamber and a lower chamber, and the base of the variable stiffness layer is made of flexible Made of material with high strength and flexibility, which can limit the axial strain of the driver; a low melting point alloy is arranged in the serpentine flow channel inside the variable stiffness layer, and an electrode is connected to the low melting point alloy; The gas source communicates with the upper chamber and the lower chamber respectively through gas pipelines; the control system includes a controller and a stiffness control switch, the stiffness control switch is connected to the power supply device of the electrode, and the controller is simultaneously connected with the driver of the gas source and the Stiffness control switch connection. The driver in the present invention has a large bending range, can meet the activity requirements of the hand joints and has a strong bearing capacity at the same time.

Description

technical field [0001] The application belongs to the technical field of medical rehabilitation robots, and in particular relates to a variable stiffness soft driver and a hand rehabilitation training robot using the driver. Background technique [0002] There are 1.5 million to 2 million new stroke patients in my country every year, and more than 75% of stroke patients suffer from different degrees of impairment of hand motor function. The rehabilitation of the basic functions of flexion and extension of the hand joints depends on passive and active grasping and other movement training. This process often requires the participation and guidance of a physical therapist. However, the price of rehabilitation intervention by physical therapists is high and depends heavily on the rehabilitation treatment level of the therapist. In order to reduce the treatment cost of patients with hand motor dysfunction, shorten the rehabilitation treatment cycle, and reduce the work intensity ...

AI Technical Summary

Problems solved by technology

[0004] This application solves the technical problem that the software driver in the prior art has poor load capacity and cannot meet the clinical needs of stroke patients' hand rehabilitation, and then provides a variable stiffness software that can bear a large load and has a flexible range of motion. Driver and hand rehabilitation training robot using the driver

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