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Hand exoskeleton

An exoskeleton and finger technology, applied in the direction of manipulators, program-controlled manipulators, passive exercise equipment, etc., can solve problems such as angle changes

Inactive Publication Date: 2015-07-08
UNIVERSITY OF CAPE TOWN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This drive mechanism is not suitable for complex movements, such as when adjusting the distal interphalangeal joint or the proximal interphalangeal joint, without deceleration or violent reaction of the drive mechanism to cause the more proximal joint to move
For example, adjusting the distal phalanx position will result in changes in the metacarpal joint angle and proximal interphalangeal joint angle since there is no support mechanism other than the cables / tendons that push and pull in both directions

Method used

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Embodiment Construction

[0033] In the following description, an embodiment of the hand exoskeleton device according to the present invention will be discussed in detail, and different aspects of the present invention will be discussed.

[0034] like figure 1 As shown, the hand exoskeleton device includes three automatic units (1, 2, 3), where the one attached to the thumb of the hand (4) is marked with a number (1), and the one attached to the index finger is marked with a number (2). Attachment to the middle finger is marked with a number (3).

[0035]The automatic unit (1) attached to the thumb has two elements (6, 7) for attachment to the distal (106) and proximal (107) phalanx of the thumb (see figure 2 ). Each of the automatic units (2, 3) attached to the index and middle fingers has three elements (11, 12, 13) for use with the associated distal phalanx (111), middle The phalanx (112) and proximal phalanx (113) are attached.

[0036] Each element has as Figure 11 The basic form shown has ...

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Abstract

A hand exoskeleton device is provided having at least three robotic units. One is for attachment to the thumb and has two elements for attachment to the distal and proximal phalanges. The other two each have three elements, for attachment to the distal, middle and proximal phalanges of the index and middle fingers. The elements of each robotic unit are interconnected by suitable hardware to provide for relative angular movement of the elements about an axis of rotation that corresponds substantially to the axis of rotation of a user's interphalangeal joint movement. An actuator is associated with the interconnecting hardware to enable adjustment of the two elements in each of two opposite directions. A sensor senses the angular position or force of one element relative to the other element of each pair. A computerized controller controls movement of the elements of each pair by means of the associated actuator.

Description

technical field [0001] The present invention relates to a hand exoskeleton device particularly useful for assisting handwriting recovery in stroke patients and others with limited or impaired control of finger movements. The present invention more particularly relates to such a hand exoskeleton device which is automatically controlled to guide or assist finger movements for various purposes, especially handwriting or operating a keyboard. Background technique [0002] Several hand exoskeleton devices have been developed that offer limited functionality for simple grasping and releasing tasks. These hand exoskeleton devices have low precision and have been used to evaluate the clinical significance of using hand exoskeleton devices in human therapy. Several studies have been conducted using robotically controlled hand exoskeleton devices that apply neural rewiring (brain remapping and reorganization) to help stroke patients regain lost fine motor skills. [0003] Applicant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/00A61H1/02
CPCA61H2201/5038A61H1/0288A61H2201/1671B25J9/0006A61H2201/5069A61H2201/5064A61H2201/1676A61H2201/5007
Inventor Y·布赖拉尔L·R·约翰S·西法拉叙
Owner UNIVERSITY OF CAPE TOWN
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