Therapeutic shoe insert

Abstract

An insole constructed of paper provides a periodic somatosensory stimulation to the sole of the foot thought to provide therapeutic benefit with respect to medical conditions related to the functioning of the nervous system. A corrugated upper paper layer may contact the skin directly and absorb and disperse perspiration. Low cost allows a kit to be provided of insoles each providing a different stimulation pattern for rotation over the week.

Claims

1. A therapeutic insole comprising: a first substantially flat paper layer sized to fit against a sole of a foot to substantially follow a contact surface of the foot against the ground in a manner of an insole; a second corrugated paper layer conforming to a periphery of the first substantially flat paper layer and adhered to an upper surface of the first substantially flat paper layer at troughs of corrugations on a lower surface of the second corrugated paper layer to expose peaks of the corrugations to a foot resting on the second corrugated paper layer; and wherein the corrugations provide stimulation to a sole of a foot in contact with the insole during walking of greater than 10 hertz; further including a rib structure providing laterally extending ribs and attached to a lower surface of the first substantially flat paper layer.

2. The therapeutic insole of claim 1 wherein the rib structure further includes a spine portion extending along a longitudinal axis running along a length of the insole from a toe portion to a heel portion.

3. The therapeutic insole of claim 1 wherein the ribs and spine have a cross-section of at least one millimeter.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective view of an insole constructed according to the present invention providing a corrugated insole having exposed corrugation ridges;

(2) FIG. 2 is a cross-section taken along line 2-2 of FIG. 1 showing the assembly of the insole from a flat and corrugated paper layer;

(3) FIG. 3 is a perspective view of a sandal constructed using the present invention as both the insole and sole;

(4) FIG. 4 is a perspective view similar to that of FIG. 3 showing use of the invention as an insole in a conventional shoe;

(5) FIG. 5 is an elevational cross-section of a sock providing a pocket for holding an insole of the present invention;

(6) FIG. 6 is a top plan view of an alternative construction of the insole of FIG. 1 having laminated corrugated elements;

(7) FIG. 7 is a top plan view of a kit providing a set of insoles providing different stimulation patterns and employing serpentine corrugations shown in enlarged details;

(8) FIG. 8 is a bottom plan view of the sole FIG. 1 in an embodiment including a set of spine supports providing an augmenting lower spatial frequency stimulation pattern.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(9) Referring now to FIGS. 1 and 2, an insole 10 of the present invention may provide for an upper surface 12 having a set of periodic ripples 14 extending along a lateral axis 16 generally perpendicular to a longitudinal axis 19 running along the length of the insole from a toe portion 18 to a heel portion 25. The periodic ripples 14 may for example, following a sinusoidal curve extending along the longitudinal axis 19 and then sweeping that curve along the lateral axis 16 across the upper surface 12 to define a rippled plane. The periodic ripples 14, in one embodiment, may provide for a periodicity of 2.8 cycles or ridge crests 21 per centimeter with the amplitude of one millimeter. Generally a range between 1 and 5 ridge crests per centimeter are contemplated. Ideally, the periodic ripples 14 are such as to generate a 10 hertz or greater signal to the brain by flexing back and forth against the sole of the foot during walking when the foot is placed against the upper surface 12 in the manner of a conventional insole.

(10) In one embodiment, the periodic ripples 14 will comprise an exposed corrugated paper layer 20 folded in the manner of corrugations used for reinforced cardboard and may have multiple holes 22 passing through this corrugated paper layer 20 to help dissipate perspiration. The under surface of the corrugated paper layer 20 may be attached, for example, at troughs 23 of the ripples 14 by glue or the like, to an upper surface of a planar cardboard layer 24, the latter to provide for resistance against flattening of the ripples 14 in the corrugated paper layer 20 by tensioning against expansion of the ripples 14. Generally the corrugated paper layer 20 and planar cardboard layer 24 have the same outline in peripheries, following generally the curve shape of contact of a human foot with a horizontal surface during walking in the manner of a standard insole. As will be understood from the description below, the planar cardboard layer 24 may distort slightly and may be considered truly planar only with respect to the corrugated paper layer 20.

(11) The paper products of corrugated paper layer 20 and planar cardboard layer 24 may include a coating material 26 such as magnesium powder, bee propolis or another powdered antioxidant to decrease stress and inflammation in the brain and body. Alternative antioxidants including myrrh as well as frankincense may also be used.

(12) In one embodiment, a woven cloth material such as a sock may be placed over the ripples 14 between the ripples 14 and a person's foot to provide additional cushioning and absorption. Alternatively a standard foot sock could be attached to the bottom of the cardboard by putting Velcro on the upper surface of the corrugated paper layer 20 and on the lower surface of the sock.

(13) Referring now to FIG. 3, a lightweight therapeutic device may make use of the insole 10 comprising materials of paper layers 20 and 24 attached to foot straps 30 that may pass over the top of the user's foot. These straps retain the insole 10 against the soles of the user's feet during walking to make the insole into a lightweight sandal 32. Referring to FIG. 4, alternatively, a standard shoe 36 may receive the insole 10 into the shoe to replace or to supplement the standard insole provided with the shoe 36.

(14) Referring to FIG. 5, a sock 38 may be constructed to have a pocket 40 with an open backside on the bottom surface of the sock 38 normally contacting the sole of the foot. The pocket 40, for example, is constructed by a slight overlapping of material of the bottom of the sock 38 or in the manner of a patch pocket over an opening that would otherwise expose the foot. The pocket 40 may receive the insole 10 within the pocket to be exposed to the toes 42 and front of the foot 44 of the user wearing the sock 38 to the surface of the insole 10.

(15) Referring now to FIG. 6, the present invention may be used to provide for several frequencies of sensory stimulation by providing two different structures producing two additive stimulation frequencies. The first structure may be the exposed upper surface 12 described above and the second structure may be overlying laminated elements 50 periodically spaced at a second stimulation spatial frequency 52 along the longitudinal axis 19. These laminated elements 50 may be constructed of corrugated material similar to that shown in FIG. 2 having crests 21 at the first stimulation spatial frequency 54. The first stimulation frequency may, for example, be on the order of a few sixteenths of an inch while the second stimulation spatial frequency 52 may be on the order of 1 to 2 inches. The laminated elements 50 are spaced apart to expose the ripples 14 of the upper surface 12 of the insole of FIG. 1 and provide corresponding ripples 14 thereon.

(16) Referring now to FIG. 7, it is believed that variation in the stimulation pattern, for example, during the day or between different days, may be necessary to prevent acclimation by the nervous system. Accordingly, the present invention contemplates a kit 60 comprised of multiple pairs of insoles 10 (only one insole for each pair shown for clarity) wherein the stimulation pattern on the upper surface of the insoles 10 is varied with respect to shape, spatial repetition frequency, amplitude or the like. Accordingly, a first insole 10a may provide for an upper surface having serpentine ripples 14 following a generally sinusoidal path along an axis 62a, for example, at a 15-degree angle 64a with respect to the lateral axis 16. A second insole 10b may provide for ripples 14 along axis 62b aligned with lateral axis 16 while a third insole 10c may provide for an upper surface having serpentine ripples 14 following a sinusoidal path along axis 62c tipped with respect to lateral axis 16 in the opposite direction as that of axis 62a. In use, different insoles would be used at different times.

(17) Referring no to FIG. 8, the juxtaposition of two different spatial stimulation frequencies applied on the sole of the foot may also be accomplished through the use of the spine structure 70 which may be placed beneath the planar cardboard layer 24 with respect to the foot. The spine structure 70, for example, may be molded from a plastic material or the like but desirably may be constructed from natural cardboard or a similar material, for example, die cut laminated as appropriate. The spine structure 70 provides for multiple ribs 72 extending laterally from a central spine 74, the spine 74 being aligned generally along the longitudinal axis 19. Each of the ribs 72 operate to slightly distort the paper layers 24 and 20 at the second stimulation spatial frequency 52 to provide a lower frequency stimulation periodicity to the walker when used with insole 10 such as that shown in FIG. 1. Ribs 72 may be adhered to the bottom of the planar cardboard layer 24.

(18) While the inventor does not wish to be bound to a particular theory, it is believed that the insole 10 enables the toes to generate a 10 Hz or greater signal to the brain by flexing back and forth against the ridges of the insert so that different crests 21 of the paper layer 20 are successively brought into contact with the foot in a rolling progression. In contrast, a massage shoe lacks the fine detail to send this many vibrations per second to the brain. The massage shoe can only transmit pressure and low frequency pressure waves (0-1 Hz) associated with walking. Corrugated paper enables the user through the Meisner cells in the foot to send signals of 10 to 50 Hz to the brain.

(19) Generally it is believed that the insole 10 may have a variety of different benefits not limited to those discussed above but also including assistance with respect to the conditions of nystagmus, Alzheimer's, Parkinson's, Tourette's, concussion, chronic traumatic encephalopathy, emotional trauma, and PTSD specifically since these involve theta beta ratio, With regard to this latter effect, U.S. application publication 2014/0012152, Ser. No. 13720104 filed Dec. 19, 2012, by the same inventor is hereby incorporated in its entirety by reference.

(20) The present principles may also be applied to a walkway providing a corrugated walking path or to a psychology tablet which makes use of haptic stimuli from a phone or computer tablet in order to achieve a neurological end. Sliding the bare or socked foot over a corrugated walking path can help the brain generate the smooth motor reflex signals necessary for walking and balance.

(21) Certain terminology is used herein for purposes of reference only, and thus is not intended to be limiting. For example, terms such as upper, lower, above, and below refer to directions in the drawings to which reference is made. Terms such as front, back, rear, bottom and side, describe the orientation of portions of the component within a consistent but arbitrary frame of reference which is made clear by reference to the text and the associated drawings describing the component under discussion. Such terminology may include the words specifically mentioned above, derivatives thereof, and words of similar import. Similarly, the terms first, second and other such numerical terms referring to structures do not imply a sequence or order unless clearly indicated by the context.

(22) The term paper is used herein refers to nonwoven materials constructed primarily of cellulosic fibers for example derived from organic material such as wood pulp or plant fiber.

(23) When introducing elements or features of the present disclosure and the exemplary embodiments, the articles a, an, the and said are intended to mean that there are one or more of such elements or features. The terms comprising, including and having are intended to be inclusive and mean that there may be additional elements or features other than those specifically noted. It is further to be understood that the method steps, processes, and operations described herein arc not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It is also to be understood that additional or alternative steps may be employed.

(24) It is specifically intended that the present invention not be limited to the embodiments and illustrations contained, herein and the claims should be understood to include modified forms of those embodiments including portions of the embodiments and combinations of dements of different embodiments as come within the scope of the following claims All of the publications described herein, including patents and non-patent publications are hereby incorporated herein by reference in their entireties.