Adjustable orthosis joint for the controlled movement and/or fixation of a hand, and orthosis having an orthosis joint of this kind
Described herein is an adjustable orthesis joint for the controlled movement and/or fixation of a hand of a patient and to an orthesis having such an orthesis joint, which is distinguished in that it includes at least one fastening element for pivotable fastening of a first pivot lever; at least one first, upper angle adjustment element, and at least one second, lower angle adjustment element; the first angle adjustment element and the second angle adjustment element each including at least one pivot limitation, which limit the extension and/or flexion movement of a first pivot lever in its range of movement.
1 . An adjustable orthesis joint ( 10 ) for the controlled movement and/or fixation of a hand of a patient, comprising at least
a first pivot lever ( 15 ) for performing an extension and/or flexion movement of the hand;
a second pivot lever ( 16 ), arranged pivotably on the first pivot lever ( 15 ), for performing an ulnar and/or radial deviation of the hand;
wherein
the orthesis joint ( 10 ) comprises
a fastening element ( 12 ) for pivotable fastening of the first pivot lever ( 15 );
a first, upper angle adjustment element ( 11 ), which during use is arranged in relation to the back of a hand above the fastening element ( 12 ), rotatably about a rotation axis (D 1 ), on the fastening element ( 12 ); and
a second, lower angle adjustment element ( 13 ), which during use is arranged in relation to the back of a hand below the fastening element ( 12 ), rotatably about the rotation axis (D 1 ), on the fastening element ( 12 );
the first angle adjustment element ( 11 ) and the second angle adjustment element ( 13 ) each comprising at least one pivot limitation ( 111 ; 131 ), which limit the extension and/or flexion movement of the first pivot lever ( 15 ) in a range of movement.
2 . The orthesis joint ( 10 ) of claim 1 , wherein
the first, upper angle adjustment element ( 11 ) comprises at least two upper pivot limitations ( 111 ) arranged on the lower side ( 114 ),
the pivot limitations ( 111 ) being spaced apart from one another by an angle (a) that is formed by the respective positions of the pivot limitations ( 111 ) on the lower side ( 114 ) and the point of intersection of the rotation axis (D 1 ) with the lower side ( 114 );
and
the pivot limitations ( 111 ) being configured differently to one another in such a way that the extension movement of the first pivot lever ( 15 ) is limited differently in its range of movement by cooperation with the various pivot limitations ( 111 ).
3 . The orthesis joint ( 10 ) of claim 2 , wherein the first, upper angle adjustment element ( 11 ) comprises four upper pivot limitations ( 111 ) arranged on the lower side ( 114 ).
4 . The orthesis joint ( 10 ) of claim 1 , wherein
the second, lower angle adjustment element ( 13 ) comprises at least two lower pivot limitations ( 131 ) arranged on the upper side ( 133 ),
the pivot limitations ( 131 ) being spaced apart from one another by an angle (β) that is formed by the respective positions of the pivot limitations ( 131 ) on the upper side ( 133 ) and the point of intersection of the rotation axis (D 1 ) with the upper side ( 133 );
and
the pivot limitations ( 131 ) being configured differently to one another in such a way that the flexion movement of the first pivot lever ( 15 ) is limited differently in its range of movement by cooperation with the various pivot limitations ( 131 ).
5 . The orthesis joint ( 10 ) of claim 4 , wherein the second, lower angle adjustment element ( 13 ) comprises four lower pivot limitations ( 131 ) arranged on the upper side ( 133 ).
6 . The orthesis joint ( 10 ) of claim 1 , wherein at least one first stop ( 151 ) and at least one second stop ( 152 ), which are adapted to limit an angle (δ) of the pivot movement of the second pivot lever ( 16 ), are arranged on the first pivot lever ( 15 ).
7 . The orthesis joint ( 10 ) of claim 6 , wherein the stops ( 151 ; 152 ) are configured to be reversibly connectable to the first pivot lever ( 15 ).
8 . The orthesis joint ( 10 ) of claim 1 , wherein the second pivot lever ( 16 ) comprises at least one slider ( 161 ) which is adapted to movably connect the second pivot lever ( 16 ) to a hand connecting element ( 163 ).
9 . The orthesis joint ( 10 ) of claim 8 , wherein the hand connecting element ( 163 ) comprises a rail ( 162 ) which is configured so as to correspond with the slider ( 161 ) of the second pivot lever ( 16 ).
10 . The orthesis joint ( 10 ) of claim 1 , wherein the at least one upper pivot limitation ( 111 ) is arranged on a lower side ( 114 ) of the first, upper angle adjustment element ( 11 ).
11 . The orthesis joint ( 10 ) of claim 1 , wherein the at least one lower pivot limitation ( 131 ) is arranged on an upper side ( 133 ) of the second, lower angle adjustment element ( 13 ).
12 . The orthesis joint ( 10 ) of claim 1 , wherein the pivot limitations ( 111 ; 131 ) are configured as recesses in the first ( 11 ) and/or second ( 13 ) angle adjustment element, so that
in the case of the first angle adjustment element ( 11 ), a thickness ( 115 ) of the angle adjustment element ( 11 ) is reduced from its lower side ( 114 ) in the direction of its upper side ( 113 ) in such a way that the first pivot lever ( 15 ) is blocked after a swept angle γ1≥0° during a pivot movement toward the first, upper angle adjustment element ( 11 ); and
in the case of the second angle adjustment element ( 13 ), a thickness ( 135 ) of the angle adjustment element ( 13 ) is reduced from its upper side ( 133 ) in the direction of its lower side ( 134 ) in such a way that the first pivot lever ( 15 ) is blocked after a swept angle γ2≥0° during a pivot movement toward the second, lower angle adjustment element ( 13 ).
13 . The orthesis joint ( 10 ) of claim 1 , wherein
at least one upper latching means ( 112 ) is arranged on the lower side ( 114 ) of the first, upper angle adjustment element ( 11 ), which is adapted to reversibly connect the upper angle adjustment element ( 11 ) to the fastening element ( 12 ) via at least one latching hole ( 122 ) that is arranged on an upper side ( 123 ) of the fastening element ( 12 ) and is configured so as to correspond with the upper latching means ( 112 ), so that accidental rotation of the first angle adjustment element ( 11 ) about the rotation axis (D 1 ) is prevented;
and/or
in that at least one lower latching means ( 132 ) is arranged on the upper side ( 133 ) of the second, lower angle adjustment element ( 13 ), which is adapted to reversibly connect the lower angle adjustment element ( 13 ) to the fastening element ( 12 ) via at least one latching hole ( 122 ) that is arranged on a lower side ( 124 ) of the fastening element ( 12 ) and is configured so as to correspond with the lower latching means ( 132 ), so that accidental rotation of the second angle adjustment element ( 13 ) about the rotation axis (D 1 ) is prevented.
14 . An orthesis ( 1 ) for the controlled movement and/or fixation of a hand, or of a hand and a forearm, of a patient, comprising the adjustable orthesis joint ( 10 ) of claim 1 .
15 . The orthesis joint ( 10 ) of claim 1 , wherein the first, upper angle adjustment element ( 11 ) is configured in form of a disk.
16 . The orthesis joint ( 10 ) of claim 1 , wherein the second, lower angle adjustment element ( 13 ) is configured in the form of a disk.