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Joint movement assist device

A joint movement and auxiliary device technology, applied in passive exercise equipment, physical therapy, etc., to achieve the effect of light weight

Active Publication Date: 2017-05-31
山本 圭治郎 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, in the technique of the conventional example, only the bending motion and the stretching motion of the joint that rotates around one axis are supported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0068] First, refer to Figure 3 to Figure 15 A first embodiment of the present invention will be described.

[0069]

[0070] exist image 3 , Figure 4 An external view of the joint motion assisting device 100A according to the first embodiment is shown in FIG. image 3 , Figure 4 The coordinate system (X, Y, Z) in is the following coordinate system: when all fingers are closed, the direction perpendicular to the extending direction of the fingers and from the thumb (first finger) to the little finger (fifth finger) is used as In the +X direction, the direction from the wrist toward the fingertips is referred to as the +Y direction, and the direction from the palm side toward the back of the hand is referred to as the +Z direction.

[0071] here, image 3 This is an external view of the articulation assisting device 100A worn on the back of the hand (back of the hand) of the right hand HD as viewed from the back of the hand (back of the hand) when the joints of the f...

no. 2 approach

[0234] Below, the main reference Figure 16 to Figure 18 A second embodiment of the present invention will be described.

[0235]

[0236] Figure 16 An external view of an articulation assisting device 100B according to the second embodiment is shown in FIG. here, Figure 16 This is an external view of the joint motion assisting device 100B worn on the back of the right hand HD when the joints of the fingers are in the extended state and the fingers are in the closed state, viewed from the back of the hand.

[0237] like Figure 16 As shown, the joint motion assisting device 100B is different from the above-described first embodiment in that it includes a carpal member 110B instead of the carpal member 110A, and a finger joint assisting portion 130B. j (j=2, . . . , 5) in place of the finger joint motion assisting portion 130A j (j=2, . . . , 5); and an adjustment unit 180B is provided instead of the adjustment unit 180A. The following description will focus mainly on...

no. 3 approach

[0290] Below, the main reference Figure 19 to Figure 23 A third embodiment of the present invention will be described.

[0291]

[0292] Figure 19 , 20 An external view of an articulation assisting device 100C of a third embodiment is shown in FIG. here, Figure 19 This is an external view of the joint motion assisting device 100C worn on the back of the right hand HD when the joints of the fingers are in the extended state and the fingers are in the closed state, viewed from the back of the hand. also, Figure 20 viewed from the palm side Figure 19 An external view of the illustrated joint motion assisting device 100C. In addition, in Figure 20 , the illustration of the right hand wearing the joint motion assisting device 100C is omitted.

[0293] like Figure 19 , Figure 20 In summary, compared with the articulation assisting device 100A according to the first embodiment described above, the articulation assisting device 100C is different in that it includes...

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Abstract

When the joint movement assist device according to the present invention is worn on a hand, and a first bellows (231) is expanded or contracted, a second thumb metacarpal scaffold member (212) rotates with respect to a first thumb metacarpal scaffold member (211A), about an axis of rotation which is a first axis that is "one joint axis" of a biaxial saddle joint. An elastic member (251) elastically restrains the part of the first bellows (231) that faces the carpometacarpal joint of the thumb so as to allow expansion and contraction between the portions connected to the carpometacarpal joint of the thumb, and as to enable the distance between one end section of the first thumb metacarpal scaffold member (211A) and one end section of the second thumb metacarpal scaffold member (212) to change smoothly. The expansion and contraction of a second bellows (232a) causes a third thumb metacarpal scaffold member (213) to rotate with respect to the second thumb metacarpal scaffold member (212), about a central axis which is a second axial member (AX2) that perpendicularly intersects the first axis. Thus, appropriate assistance can be provided for joint movements similar to the joint movements of the hand of a healthy person.

Description

technical field [0001] The present invention relates to an articulation assisting device, and more particularly, to an articulation assisting device that assists the articulation of a predetermined object. Background technique [0002] Conventionally, various devices for rehabilitation have been proposed. In some of these devices, instead of a physical therapist or the like, therapeutic gymnastics and sports for realizing the restoration of a patient's basic motor function are assisted. [0003] As one of the devices for assisting the movement of the patient concerned, there is a device that assists the joint movement of the fingers when the fingers are paralyzed and contracture due to central nervous system disorders such as cerebral infarction (see Patent Document 1: below, referred to as "existing examples"). As in the above-described conventional example, since the joint motion assisting device using the bellows is lighter than the device using an actuator driven by a ...

Claims

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Application Information

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IPC IPC(8): A61H1/02
CPCA61H1/02
Inventor 山本圭治郎手塚崇之
Owner 山本 圭治郎
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