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US 8,523,792 B2Granted
Rehabilitative training devices for use by stroke patients
AssigneeMount Sinai School of Medicine
InventorsDonald J. Weisz, Preeti Raghavan
Life of this patent
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Abstract
According to one embodiment, a rehabilitative training device for use with a stroke patient includes a first component that is operatively coupled to a first body part (unaffected body part) of the patient and a second component that is operatively coupled to a second body part (affected body part) of the patient. The first component and second component are operatively coupled to one another such that motion of the first component as a result of movement of the first body part by the user causes the second component and second body part to move in a symmetrical motion.
Claims17
A finger rehabilitative training device for use by a patient comprising:
- a base;
- a first arm platform assembly that is coupled to the base and includes a support surface for a first arm of the patient to be placed;
- a second arm platform assembly that is coupled to the base and includes a support surface for a second arm of the patient to be placed, wherein the first and second arm platform assemblies are disposed adjacent one another in a side-by-side manner;
- a first finger restrainer for being coupled to at least one finger of a non-affected hand of the patient;
- a second finger restrainer for being coupled to at least one finger of an affected hand of the patient;
- a first support that is fixed to the first arm platform assembly;
- a first cross bar that is pivotally attached to the first support at a pivot point and extends across at least a portion of the first and second arm platform assemblies;
- a first cable attached between the first finger restrainer and a first end portion of the first cross bar such that when the respective finger of the non-affected hand on which the first finger restrainer is coupled is moved by the patient, the first cross bar pivots about the first pivot point;
- a second cable attached between the second finger restrainer and a second end portion of the first cross bar such that when the first cross bar pivots in either a counterclockwise or clockwise direction, the first end portion pivots in one direction, while the second end portion pivots in an opposite direction resulting in synchronized movement between the at least one finger of each of the non-affected and affected hands of the patient in that the fingers of the left and right hands that are contained within the first and second finger restrainers, respectively, move together in a same direction;
- and
- a counter force mechanism that provides resistance and provides a return force that counters pivoting of the first cross bar and returns the first cross bar to a rest position, the counter force mechanism including a linkage that is connected between the second finger restrainer and a pivotable lever, the pivotable lever being attached to the base with a biasing member that generates the return force to:
- (1) return the lever to a rest position after the lever pivots upwards due to pivoting of the first cross bar, and (2) return the second finger restrainer to a rest position.
9 more elements
A finger rehabilitative training device for use by a patient comprising:
- a base;
- first and second arm platform assemblies that are coupled to the base and include support surfaces for left and right arms of the patient to be placed, the first and second arm platforms being positionable between a first position in which the left hand comprises an affected hand and the right hand comprises a non-affected hand and a second position in which the left hand comprises a non-affected hand and the right hand comprises an affected hand, wherein the first and second arm platforms are disposed adjacent one another in a side-by-side manner;
- a first finger restrainer for being coupled to at least one finger of the non-affected hand;
- a second finger restrainer for being coupled to at least one finger of the affected hand;
- a first cross bar that is pivotal about a pivot point and extends across at least a portion of the first and second arm platform assemblies;
- a first cable attached between the first finger restrainer and a first end portion of the second cross bar such that when the respective finger of the non-affected hand is raised, the first cross bar pivots about the first pivot point;
- a second cable attached between the second finger restrainer and a second end portion of the first cross bar such that when the first cross bar pivots in either a counterclockwise or clockwise direction, the first end portion pivots in a first direction, while the second end portion pivots in an opposite second direction resulting in synchronized movement between the at least one finger of each of the non-affected hand and the affected hand;
- and
- a counter force mechanism that provides resistance and provides a return force that counters pivoting of the first cross bar and returns the first cross bar to a rest position, the counter force mechanism being coupled between the second finger restrainer and the base and being configured to generate the return force when the raising of the finger of the non-affected hand is completed and the finger of the non-affected hand is free to be lowered, whereby the counter forcer mechanism provides an active motion of the at least one finger of the affected hand causing the finger of the affected hand to be lowered, thereby causing the first cross bar to pivot and be free to return to the rest position without any active force being applied by fingers of the non-affected hand.
6 more elements
A finger rehabilitative training device for use by a patient comprising:
- a base;
- first and second arm platform assemblies that are coupled to the base and include support surfaces for left and right arms of the patient to be placed, the first and second arm platforms being positionable between a first position in which the left hand comprises an affected hand and the right hand comprises a non-affected hand and a second position in which the left hand comprises a non-affected hand and the right hand comprises an affected hand, wherein the first and second arm platforms are disposed adjacent one another in a side-by-side manner;
- a first finger restrainer for being coupled to at least one finger of the non-affected hand;
- a second finger restrainer for being coupled to at least one finger of the affected hand;
- a transverse member that extends across at least a portion of the first and second arm platform assemblies, the transverse member being pivotable between a first position and a second position which is 180 degrees apart from the first position, the first position for use when the first and second arm platform assemblies are in the first position and the second position for use when the first and second arm platform assemblies are in the second position;
- a first cable attached between the first finger restrainer and transverse member such that when the respective finger of the non-affected hand is raised, the transverse member pivots about the first pivot point;
- a second cable attached between the second finger restrainer and the transverse member such that when the transverse member pivots in either a counterclockwise or clockwise direction, the pivoting is translated into synchronized movement in a same direction between the finger of the non-affected hand that is contained within the first finger restrainer and the finger of the affected hand that is contained in the second finger restrainer;
- and
- a counter force mechanism that is coupled to the second finger restrainer and applies a biasing force thereto such that once raising of the finger of the non-affected hand is completed, the counter force mechanism applies a downward biasing force to the second finger restrainer resulting in pivoting of the transverse member to an original rest position.
6 more elements
Dependencies are inferred from the claim text.