The subject matter described herein relates to various embodiments of an involuntary movement dampening device and related methods.
Ataxic cerebral palsy (ACP) is a neuromuscular disorder caused by damage to the motor cortex during fetal development. ACP is a rare form of cerebral palsy affecting approximately 10% of all diagnosed cases. There is no cure for ACP and current treatments have shown little promise.
A person with ACP can suffer from tremors along one or more extremities (e.g., arms, legs), which can interfere with performing Activities of Daily Living (ADLs), such as eating, dressing, writing and typing. At least some wearable orthotics have been used to try and assist people with ACP but they either do not provide sufficient support or are not user-friendly (e.g., are too bulky, lock the joint along the extremity, etc.). Other physical disabilities can cause people to experience involuntary movements, including tremors, along one or more extremities, which can significantly impair ADLs. At least reducing or dampening such involuntary movements can improve a person's wellbeing and ability to perform ADLs.
Aspects of the current subject matter can include various embodiments of an involuntary movement dampening device that can reduce extremity pain and/or dampen involuntary movement of an extremity. In one aspect, an involuntary movement dampening device can include a first coupling extension including a first extension and a first coupling feature positioned along the first extension. The first coupling feature can be configured to secure to a first part of an extremity of a user. The involuntary movement dampening device can include a second coupling extension including a second extension and a second coupling feature positioned along the second extension. The second coupling feature can be configured to secure to a second part of the extremity of the user. The involuntary movement dampening device can include an adjustable hinge that provides a pivotable coupling between the first extension and the second extension. The adjustable hinge can provide more than one dampening settings, and each dampening setting of the more than one dampening settings can provide a different level of pivoting resistance between the first extension and the second extension to thereby at least dampen involuntary pivoting between the first part and the second part of the extremity.
In some variations one or more of the following features can optionally be included in any feasible combination. The involuntary movement dampening device can further include a nerve pressure feature positioned along the first coupling feature and/or the second coupling feature for applying a pressure against the ulnar nerve when the associated first coupling feature and/or the second coupling feature is coupled to the extremity. The involuntary pivoting movement is caused by tremors or other involuntary movements experienced along the extremity of the user. The nerve pressure feature can include an extruded material extending from an inner wall of the second coupling feature. The extruded material can include a spherical shape. The nerve pressure feature can be moveable along an inner wall of the second coupling feature. The involuntary movement dampening device can include at least one length adjusting feature for moving the first coupling feature or the second coupling feature closer to or further away from the adjustable hinge. The adjustable hinge can include a friction feature that increases pivoting resistance between the first extension and the second extension as compression of the friction feature is increased within the adjustable hinge. The friction feature can decrease resistance in movement of the first and second extensions as compression of the friction feature decreases within the adjustable hinge.
In some embodiments, the adjustable hinge can be configured to provide at least three different levels of pivoting resistance between the first extension and the second extension. The adjustable hinge can include an adjustment feature that can be rotated by a user to at least three different positions, and each position can configure the adjustable hinge to provide one of the at least three different levels of pivoting resistance. The adjustable hinge can include a sensory feedback mechanism that provides at least one of a tactile feedback and an audible feedback to a user as a result of the adjustable hinge changing to a different level of pivoting resistance. The first and second coupling features can each include an adjustable strap. The first and second coupling features can include an inflatable strap. The second coupling extension can include more than one second coupling feature that are moveable along the second extension relative to each other and relative to the adjustable hinge.
In another interrelated aspect of the current subject matter, a method of an involuntary movement dampening device includes securing an embodiment of the involuntary movement dampening device to an extremity of a user and adjusting a pivoting resistance of an adjustable hinge of the involuntary movement dampening device. The involuntary movement dampening device can include a first coupling extension including a first extension and a first coupling feature positioned along the first extension. The first coupling feature can be configured to secure to a first part of an extremity of a user. The involuntary movement dampening device can include a second coupling extension including a second extension and a second coupling feature positioned along the second extension, and the second coupling feature can be configured to secure to a second part of the extremity of the user. The adjustable hinge can provide a pivotable coupling between the first extension and the second extension. The adjustable hinge can provide more than one dampening setting, and each dampening setting of the more than one dampening settings can provide a different level of pivoting resistance between the first extension and the second extension to thereby at least dampen involuntary pivoting between the first part and the second part of the extremity.
In some embodiments, the method can further include adjusting the pivoting resistance of the adjustable hinge of the involuntary movement dampening device to achieve a second level of pivoting resistance, wherein the second level of pivoting resistance is greater than the first level of pivoting resistance. The dampening of the involuntary movement can be greater as a result the adjustment hinge having the second level of pivoting resistance compared to the adjustment hinge having the first level of pivoting resistance. The adjustment hinge can increase a compression force and friction force to at least one of a first hinge-coupling end of the first extension and/or a second hinge-coupling end of the second extension to thereby increase a pivoting resistance between the first extension and the second extension.
The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description and drawings, and from the claims.
The accompanying drawings, which are incorporated in and constitute a part of this specification, show certain aspects of the subject matter disclosed herein and, together with the description, help explain some of the principles associated with the disclosed implementations. In the drawings,
When practical, similar reference numbers denote similar structures, features, or elements.
The current subject matter is directed to an involuntary movement dampening device that can at least provide support, reduce pain and reduce involuntary movement of an extremity of a user. For example, the involuntary movement dampening device can be secured to an extremity of a user, such as an arm or leg, for at least dampening involuntary movements (e.g., tremors) associated with the extremity. Various embodiments of the involuntary movement dampening device are described herein that include an adjustable hinge that is configurable or adjustable to provide more than one level of pivoting resistance to prevent and/or dampen involuntary movements of the associated extremity. Furthermore, at least some embodiments of the involuntary movement dampening device can include a nerve pressure feature that is configured to apply a pressure against the ulnar nerve when the involuntary movement dampening device is being worn on an arm of the user. For example, the pressure applied by the nerve pressure feature against the ulnar nerve can assist with reducing pain and preventing or reducing involuntary movements of the associated extremity, such as tremors (e.g., by encouraging muscle flexion). Various embodiments of the involuntary movement dampening device are described in greater detail below.
In some embodiments, the first coupling feature 108a and the second coupling feature 108b each include adjustable and releasably securing straps. For example, the first couple feature 108a and the second coupling feature 108b can each include inflatable straps 101, as shown in
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In some embodiments of the involuntary movement dampening device 100, the adjustable hinge 104 can be adjustable to provide at least two different levels of resistance or pivoting resistance against movement (e.g., pivoting) between the first coupling extension 102a and the second coupling extension 102a, including between the first extension 106a and the second extension 106b. For example, a level of pivoting resistance can cause complete stabilization and/or prevent movement of the associated joint (e.g., elbow joint), and another level of pivoting resistance can allow at least some movement of the associated joint. Each level of pivoting resistance provided by the adjustable hinge 104 can affect (e.g., increase or decrease) the dampening or controlling of movement of the extremity by the involuntary movement dampening device 100, such as reduce and/or increase the acceleration, frequency, and/or distance of involuntary movement of the extremity, such as a first part of the extremity (e.g., forearm) relative to a second part of the extremity (e.g., upper arm).
For example, the adjustable hinge 104 can include an adjustment feature 105 that, when adjusted, can set different levels of pivoting resistance. In some embodiments, the adjustment feature 105 can include a rotatable knob that, when rotated in a first direction, causes the pivoting resistance to increase and, when rotated in a second direction, causes the pivoting resistance to decrease. For example, a user may want to increase pivoting resistance when performing (or preparing to perform) more precise actions or movements. For example, a user wearing the involuntary movement dampening device 100 along an arm may increase pivoting resistance when using the arm to write, and may decrease the pivoting resistance when not performing precise arm movements and/or not attempting to limit arm movement (e.g., relaxed arms while walking).
For example, different pivoting resistance levels can be achieved by varying an amount of friction and/or compression within the adjustable hinge 104. For example, adjusting the adjustable hinge 104 to increase pivoting resistance can include increasing compression and/or friction within the adjustable hinge 104 to thereby resist pivoting of the first extension 106a and the second extension 106b relative to each other. For example, the adjustment feature 105 can be rotated clockwise to increase pivoting resistance in the adjustable hinge 104 and the adjustment feature 105 can be rotated counter-clockwise to reduce pivoting resistance in the adjustable hinge 104. The involuntary movement dampening device 100 can be efficiently adjusted (e.g., by a user, physician, etc.) to reduce and/or increase pivoting resistance in the adjustable hinge 104 to thereby customize the involuntary movement dampening device 100 to most effectively dampen or decrease various types and strengths of involuntary movements (e.g., tremors) experienced by the user.
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For example, the adjustable hinge 104 can be configured to compress the at least one friction feature 112, such as against the first hinge-coupling end 114a and/or the second hinge-coupling end 114b, to thereby cause the adjustable hinge 104 to increase pivoting resistance between the first and second extensions 106a and 106b, respectively, and thus dampen involuntary movement of the extremity to which the involuntary movement dampening device 100 is coupled to. Additionally, the adjustable hinge 104 can be configured to decompress the at least one friction feature 112 to thereby cause the adjustable hinge 104 to decrease pivoting resistance between the first and second extensions 106a and 106b, respectively, and thus allow more involuntary movement of the extremity to which the involuntary movement dampening device 100 is coupled to. In some embodiments, rotation of the adjustment feature 105 of the adjustable hinge 104 can change the pivoting resistance, such as by causing an increase or decrease in compression and/or resistance within the adjustable hinge 104. As will be described with respect to the involuntary movement dampening device 300 embodiment shown in
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Additionally, one or more nerve pressure features 120 can be positioned along the inner wall 121 of the first coupling feature 108a and/or second coupling feature 108b, such as two nerve pressure features 120 along the inner wall 121 of the second coupling feature 108b, as shown in
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As discussed above, the adjustable hinge 104 can provide various levels of pivoting resistance between the first and second extensions 106a and 106b, respectively, thereby at least dampening involuntary movements between the first and second parts of the extremity (e.g., dampen tremors and involuntary movements). Furthermore, one or more nerve pressure features 120 can extend from an inner wall 121 of the second coupling feature 108b and apply pressure along a back side of the upper arm in order to apply pressure against the associated ulnar nerve when the second coupling feature 108b is coupled to the upper arm. The involuntary movement dampening device 100 can be secured to a user in a variety of ways using one or more of a variety of coupling features, such as Velcro, straps, releasable locking mechanisms, etc., all of which are within the scope of this disclosure.
As discussed above, the involuntary movement dampening device 100 can be configured for use with a leg and/or arm, and can be adjustable for use with a variety of shaped and sized users (e.g., adults, children). As such, although
For example, the length adjusting feature 130 can include a plurality of notched cutouts extending along the first extension 106a and/or the second extension 106b. For example, the length adjusting feature 130 along the first extension 106a can allow an engagement feature 133 (e.g., threaded securing element) to releasably secure a securing arm 132 of the first coupling feature 108a in a position relative to the adjustment hinge 104. For example, the securing arm 132 can be slidably engaged with the associated extension, such as the first extension 106a, such that sliding of the securing arm 132 along the associated extension moves the associated coupling feature, such as the first coupling feature 108a, towards or away from the adjustable hinge 104. For example, securing an engagement feature 133 through the securing arm 132 and length adjusting feature 130 can secure a distance between the coupling feature, such as the first coupling feature 108a, and the adjustment hinge 104. Other length adjusting features 130 are within the scope of this disclosure for adjusting the distance between each coupling feature 108a, 108b and the adjustable hinge 104.
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In some embodiments, and as shown in
An example method of use of an embodiment of the involuntary movement dampening device, such as any of the involuntary movement dampening device embodiments 100, 200, and 300 described herein, can include securing an embodiment of the involuntary movement dampening device 100 to an extremity of a user (e.g., arm of the user), such as using the first and second coupling features 108a, 108b. The method can further include adjusting a pivoting resistance of the adjustable hinge 104 of the involuntary movement dampening device 100 to achieve a second level of pivoting resistance, such that the second level of pivoting resistance is greater than the first level of pivoting resistance. The dampening of the involuntary movement can be greater as a result the adjustment hinge 104 having the second level of pivoting resistance compared to the adjustment hinge 104 having the first level of pivoting resistance. The adjustment hinge 104 can increase a compression force and friction force to at least one of a first hinge-coupling end 114a of the first extension 106a and/or a second hinge-coupling end 114b of the second extension 106b to thereby increase a pivoting resistance between the first extension 106a and the second extension 106b. The pivoting resistance level of the adjustment hinge 104 can be increased and decreased, as desired by the user, and a sensory feedback mechanism 140 of the adjustment hinge 104 can provide either auditory or tactile feedback to indicate changes in pivoting resistance levels (e.g., strength of pivoting resistance).
In the descriptions above and in the claims, phrases such as “at least one of” or “one or more of” may occur followed by a conjunctive list of elements or features. The term “and/or” may also occur in a list of two or more elements or features. Unless otherwise implicitly or explicitly contradicted by the context in which it is used, such a phrase is intended to mean any of the listed elements or features individually or any of the recited elements or features in combination with any of the other recited elements or features. For example, the phrases “at least one of A and B;” “one or more of A and B;” and “A and/or B” are each intended to mean “A alone, B alone, or A and B together.” A similar interpretation is also intended for lists including three or more items. For example, the phrases “at least one of A, B, and C;” “one or more of A, B, and C;” and “A, B, and/or C” are each intended to mean “A alone, B alone, C alone, A and B together, A and C together, B and C together, or A and B and C together.” Use of the term “based on,” above and in the claims is intended to mean, “based at least in part on,” such that an unrecited feature or element is also permissible.
The implementations set forth in the foregoing description do not represent all implementations consistent with the subject matter described herein. Instead, they are merely some examples consistent with aspects related to the described subject matter. Although a few variations have been described in detail herein, other modifications or additions are possible. In particular, further features and/or variations can be provided in addition to those set forth herein. For example, the implementations described above can be directed to various combinations and sub-combinations of the disclosed features and/or combinations and sub-combinations of one or more features further to those disclosed herein. In addition, the logic flows depicted in the accompanying figures and/or described herein do not necessarily require the particular order shown, or sequential order, to achieve desirable results. The scope of the following claims may include other implementations or embodiments.
The current application claims priority under 35 U.S.C. § 119(e) to U.S. Provisional patent application Ser. No. 63/175,799, filed on Apr. 16, 2021 and entitled “Involuntary Movement Dampening Device,” which is incorporated by reference herein in its entirety.
Filing Document | Filing Date | Country | Kind |
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PCT/US22/25121 | 4/15/2022 | WO |
Number | Date | Country | |
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63175799 | Apr 2021 | US |