# Patent

## Title
Movable computer wrist support with magnetic levitation

## Abstract

A moveable device for elevating and enabling natural motion of the hand or wrist of an individual when the individual is using a computer input device is disclosed. The device includes a base member, a wrist support member, and magnets for levitating the wrist support member a distance above the base member when the wrist support is positioned above the base member.

## Background
CROSS REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Patent Application No. 62/145,819, filed Apr. 10, 2015 and U.S. Provisional Patent Application No. 62/217,164, filed Nov. 9, 2015, the disclosures of which are each incorporated by reference herein.


BACKGROUND OF THE INVENTION
Field of the Invention
Disclosed herein is a support apparatus for the hand and wrist when an individual is using a computer input device such as a mouse, touchpad, or keyboard. More specifically, the disclosed hand and wrist support apparatus utilizes magnetic levitation as a means to actively float and elevate the hand on a friction-free, magnetic barrier. The device enables natural, unrestricted multidimensional movements, gestures, micro adjustments, and provides cushioning to absorb repetitive strain and relieve pressure on the carpal tunnel region of the wrist anytime the individual is using a computer input device.
Description of Related Art
The advancement of technology, and computer technology in particular, has led to an increase in the number of individuals who remain seated in front of a computer for an extended period of time. For example, fields such as graphic design, engineering, software engineering, three-dimensional design, and modeling require extensive use of input devices over a prolonged period of time.
To operate an input device, an individual manipulates the device, such as a computer mouse, with the individual's hand bent backwards while a portion of the user's wrist or hand rests on a stationary support, such as a desk or other work surface. Injuries including repetitive stress injury and carpal tunnel syndrome often accumulate over time as a result of the user performing small and repetitive movements while the hand and wrist are in this position.
Carpal tunnel syndrome is primarily attributed to the compression of the median nerve within the carpal tunnel area of the wrist. Carpal tunnel syndrome is characterized in the short term by numbness experienced in the thumb and fingers. Long term carpal tunnel syndrome may result in permanent nerve damage, muscular atrophy, and weakened joints.
When the hand is bent back and the wrist remains in contact with the work surface, as is the case when a user is manipulating a computer input device, the carpel tunnel area of the wrist is subjected to significant stress and pressure. Specialized mice, trackpads, and touch screens have been created in an attempt to alleviate this problem. However, these devices restrict movement and for the most part, keep the hand stationary relative to the computer input device. The devices that do allow movement are limited to horizontal motions across the work surface and do very little to enable friction free, multidirectional, based motions commonly and advantageously used by an individual using a computer input device. Moreover, many of these devices are specifically configured for a particular input device, such as a gel support pad for use with a mouse, and are not able to effectively and efficiently function with other input device types. Furthermore, gel support pads and like devices often compress over time.
Therefore, there is a need for an ergonomic wrist support that actively adapts to the natural movements of a user's hand and wrist while providing ergonomic cushioning and support that protects against the repetitive strain injuries and pressure on the carpal tunnel region of the wrist commonly associated with the operation of a computer input device.
SUMMARY OF THE INVENTION
The device disclosed herein overcomes the problems associated with the traditional devices via a magnetic levitation means that actively floats and elevates the user's hand on a friction-free, magnetic barrier that enables unrestricted natural motion, gesture, and micro adjustment while providing cushioning to absorb the repetitive strain to the hand and carpal tunnel region of the wrist anytime the individual is using a computer input device. Further, the magnetic barrier serves to enable vibrational isolation between the base member and the wrist support surface. As such, the device disclosed herein is able to adapt to common movements of the hand and wrist that occur while using an input device such as typing or using a scroll wheel.
Unlike gel support pads and other prior art devices, the magnetic levitation means supports and conforms to the user's hand/wrist without compressing into a hard flat surface over time. Moreover, the wrist support device disclosed herein dynamically supports user motions, adapts to the input device in use, and moves with it by gliding along any work surface.
More specifically, disclosed herein is a movable wrist support device for actively supporting, floating, and elevating the wrist of an individual on a friction-free magnetic barrier that enables natural motion and gestures when the individual is using a computer input device. The movable wrist support device includes a base member, a wrist support member, and a magnetic levitation means for levitating the wrist support member a distance above the base member when the wrist support member is positioned above the base member. The movable wrist support further comprises a connection means for preventing disconnection of the wrist support member from the base member and laterally aligning the wrist support member with respect to the base member when the wrist support member is levitating above the base member.
In an example, the base member comprises a first magnet and the wrist support member comprises a second magnet. The first magnet and the second magnetic are magnetically opposed to one another when the wrist support member is positioned above the base member.
The bottom member can include a flat central portion arcing upwardly from the flat central portion towards a perimeter of the bottom surface of the base member. The wrist support member can be saddle shaped.



BRIEF DESCRIPTION OF THE DRAWINGS
An example will now be described in further detail with reference to the accompanying figures, in which:
FIG. 1 is a side view of an example wrist support device;
FIG. 2 is an exploded side view of the wrist support device of FIG. 1;
FIG. 3 is a perspective view of the wrist support device of FIG. 2;
FIG. 4 is a cross-sectional view of the wrist support device of FIG. 2;
FIG. 5 is a cross-sectional view of the wrist support device of FIG. 1; and
FIG. 6 is a rear view of the wrist support device of FIG. 1.



DESCRIPTION OF THE INVENTION
For purposes of the description hereinafter, the words “upper”, “lower”, “right”, “left”, “vertical”, “horizontal”, “top”, “bottom”, lateral“, longitudinal”, and like spatial terms relate to the described aspects as oriented in the drawing figures.
An example movable wrist support 10 includes magnetic levitation means to actively float and elevate the user's hand on a friction-free, magnetic barrier that enables unrestricted natural motion, gesture, and micro adjustment. The movable wrist support provides cushioning to absorb repetitive strain to the hand and carpal tunnel region of the wrist anytime the individual uses a computer input device. Further, the magnetic barrier serves to limit vibration transfer while an individual uses a computer input device. The example movable wrist support device alleviates injuries such as repetitive stress injury and carpal tunnel syndrome, associated with prolonged usage of such devices.
As shown in FIGS. 1-6, the movable wrist support 10 includes a base member 12 having a first magnet 14 and having a second magnet 18 provided in an assembled position. The first magnet 14 and the second magnet 18 are oriented in magnetic opposition to each other in a manner that levitates the levitating assembly 16 a distance above the base member 12 to provide support, cushioning, and independent movement of the levitating assembly 16 relative to the base member 12.
The base member 12 includes an annular seat 20 defined within a cavity 22 of the base member 12. The first magnet 14 can be ring shaped and configured to fit within the cavity 22 on the annular seat 20. The first magnet 14 can be snapped or molded directly to the annular seat 20.
A connection post 24 having a first end 26 and a second end 28, extends upwardly from a floor of the cavity 22 through a hole 29 defined in the first magnet 14. A flange 30 can be provided on the second end 28 of the connection post 24 for connecting and aligning the base member 12 to the levitating assembly 16 as is explained in further detail hereafter.
The base member 12 can be comprised of rigid, low friction material designed to slide easily along a work surface. In one embodiment the base member 12 can have a bottom surface with a flat central portion that arcs upwardly, away from the work surface, moving from the flat central portion towards the perimeter of the base member 12, to reduce contact surface between the base member 12 and the work surface, thereby reducing friction while providing a stable foundation. In another embodiment, ultra-low friction footing material can be provided to enable sliding and quiet operation.
The levitating assembly 16 includes a magnetic chamber housing 32 and a wrist support member 34. The magnetic chamber housing 32 and the wrist support surface member 34 can be manufactured as separate parts, or alternatively, can be formed as one integral part. When the magnetic chamber housing 32 and the wrist support surface member 34 are manufactured separately, the levitating assembly 16 can further include a connecting member 36 for connecting the magnetic chamber housing 32 and the wrist support surface member 34.
The chamber housing 32 includes an annular seat 38 defined within a recess 40 of the magnetic chamber housing 32. The second magnet 18 can be ring shaped and configured to fit within the annular seat 38 of the recess 40. The second magnet 18 can be snapped or molded directly to the annular seat 38.
The magnetic chamber housing 32 can be shaped to prevent unwanted metal and debris from being pulled into the annular seat 38. A guide column or opening 42 having a first end 44 and a second end 46 extends downwardly from a surface of the recess 40 and through an interior hole 47 defined in the second magnet 18. The guide column 42 defines a hollow cavity 48 for receiving the flange 30 of the connection post 24. The hollow cavity 48 can take any shape. In an example, the hollow cavity 48 corresponds in shape to receive and permit limited vertical and lateral movement of the flange 30 in the cavity 48. More specifically, the hollow cavity 48 can be slightly wider than the flange 30 to allow limited tilting, articulation and orbiting of the flange 30.
The second end 46 of the guide column 42 can be angled inwardly, towards the hollow cavity 48 to form a lip shaped stop member 50 that narrows the interior of the cavity 48 and forms a narrower opening at the second end 46. The connection post 24 and the guide column 42 form a means for connecting and aligning the flange 30 within the hollow cavity 48 that prevents the levitating assembly 16 from being disconnected from the base member 12 and aligns the levitating assembly 16 directly above the base member 12.
For example, with reference to FIG. 5, when the levitating assembly 16 is levitating above the base member 12 and the flange 30 is located within the hollow cavity 48, the flange 30 contacts an inner wall of the guide column 42 while an inner edge of the stop member 50 contacts an outer wall of the connection post 24 to stabilize and align the levitating assembly 16. As the user moves the wrist support member 34 vertically with respect to the base member 12, the entirety of flange 30 can move vertically within the upper part 48′ of hollow cavity 48 and the outer wall of connection post 24 can move vertically within the lower part 48′′ of hollow cavity 48 defined by the inside of stop member 50. The connection means can restrict movement of the levitating assembly 16 in both a vertical and lateral direction relative to the base member 12. Nevertheless, the connection means can allows the levitating assembly 16 to swivel, tilt and rock within the limits of the physical constraints.
Other connection means, such as straps as are disclosed in U.S. Provisional Patent No. 62/145,819, so long that the levitation assembly 16 remains elevated and centrally aligned above the base member 12.
The wrist support member 34 includes a top surface 52 upon which a user rests his or her wrist. As used herein, wrist includes the wrist and/or hand of a user. In an example the wrist support surface 52 can include a hollow, flexible dome area. In an example, shown in FIG. 6, the wrist support surface 52 can be saddle shaped and include three raised elements 54A, 54B, 56C, referred to in combination as 54. This saddle shape can be designed to comfortably accommodate the hand of user. The wrist support member 34 can be constructed from a soft pliable material and can be attached to the magnetic chamber housing 32 directly or by connecting member 36. The wrist support member 34 can be removably detachable from the magnetic chamber housing 32 to allow for interchangeable saddle options.
In a different example, wrist support members 34 can include different saddle options exhibiting various properties, for example, one wrist support member 34 can comprise a thermal regulator to heat or cool the wrist area while another wrist support member 34 can include a built in massage stimulator for therapeutic relief, as is disclosed in U.S. Provisional Patent No. 62/145,819.
In the example of FIG. 6, the three raised structural elements 54 extend upwardly from the wrist support member 34 and can cradle the wrist of a user when the wrist is resting on the device. The raised elements 54 also provide rigidity to the wrist support member 34. In an example, the raised elements 54 are positioned such that the distance in between can form a Y shaped, pliable and flexible channel that corresponds to the contour features common to the human wrist and palm. The recessed, hollow dome can provide a soft, flexible alternative to gels and pads, while working with magnetic levitation to further accommodate and support subtle movements while molding to the shape of the user's wrist. Raised elements 54A, 54B, located at the rear of the saddle can hug the wrist of a user when the wrist is resting on the device while raised element 54C in the front center of the device is positioned lower than the rear elements and can corresponds to the depressed area of the human palm.
The hollow area below the dome can be designed to flex and conform to a hand resting on the device, while the structural elements 54 can be more rigid, to reinforce the structure, cradle the wrist, and provide additional spring, cushioning and support.
Magnetic levitation means can include the first magnet 14 and the second magnet 18. The first 14 and the second magnet 18 can be opposing magnets (or poly magnets) positioned and secured in a vertical alignment within the wrist support device 10 as previously described. In this configuration, a magnetic force can be generated by the opposing magnetic poles, resulting in a force that can be sufficient to lift and levitate the levitating assembly 16 a distance above the base member 12 when a wrist is positioned on a surface of the wrist support member 34. The magnetic means provides an opposing magnetic force that generates a springing effect to elevate the hand or wrist, absorb shock, and enable free orbiting and movement.
In an example operation, the wrist support 10 is positioned behind any computer input device, including but not limited to a mouse, touchpad, trackball or keyboard. A user rests his or her wrist on the saddle shaped wrist support surface 52 and interacts with the input device in a normal manner. The wrist support 10 can conform to the user's wrist and hand, and can comfortably cradle the palm within the hollow, dome shaped cavity below the elevated wrist and position the user's wrist in a neutral position thereby minimizing stress. The saddle shaped wrist support surface 52 can distribute the weight of the hand, can eliminate contact between the wrist and the work surface, and can provide ergonomic support for a user's hand by providing active alignment and elevation when a user's wrist is resting on the wrist support surface 52.
The magnetic levitation means can provide an operational connection, levitating the levitation assembly 16 above the base member 12, while removing contact and friction between those surfaces, to minimize the transfer of vibration between those surfaces.
The example has been described with reference to the accompanying figures. Those skilled in the art can make modifications and alterations without departing from the scope and spirit. Accordingly, the above example is intended to be illustrative rather than restrictive.

## Claims

1. A movable wrist support device for elevating and enabling natural motion of the hand or wrist of an individual when the individual is using a computer input device, the movable wrist support device comprising:
a base member having a first tube extending therefrom;
a wrist support member having a second tube extending therefrom; and
a means for magnetically levitating the wrist support member a distance above the base member when the wrist support member is positioned above the base member, and wherein when the wrist support member is levitating above the base member one of the first and second tubes is positioned at least partially inside the other one of the first and second tubes for aligning the wrist support member with respect to the base member.

2. The movable wrist support device of claim 1, wherein the means for magnetically levitating the wrist support member comprises a first magnet that is in magnetic opposition to a second magnet.

3. The movable wrist support device of claim 2, wherein the first magnet is housed within the base member.

4. The movable wrist support device of claim 2, wherein the second magnet is housed within the wrist support member.

5. The movable wrist support device of claim 1, wherein a combination of the first tube and the second tube laterally align the wrist support member with respect to the base member.

6. The movable wrist support device of claim 1, wherein the base member includes a bottom surface that comprises a flat central portion, and wherein the bottom surface arcs away from a work surface from the flat central portion towards a perimeter of the bottom surface.

7. The movable wrist support device of claim 1, wherein the wrist support member is saddle shaped.

8. The moveable wrist support device of claim 1, wherein the first tube comprises a first flange and the second tube comprises a second flange, the first flange adapted to contact the second flange to limit separation of the base member and the wrist support member.