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Патент USA US3094995

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June 25, 1963
Filed Sept. 25, 1961
BY W77, %
United States Patent 0
Frances Kendall, 144—-53 38th Ave., Flushing, N.Y.
Filed Sept. 25, 1961, Ser. No. 140,383
10 Claims. (Cl. 128-81)
This invention relates to an orthopedic appliance for
restoring the foot to normal posture when one or more '
Patented June 25, 1963
Still (another object is to provide such an appliance for
application to the human foot which will stay where posi
tioned on the foot and will not interferewith the recep
tion of the foot in its regular sized shoe, nor render the
foot uncomfortable in such shoe.
A further object is to provide such an appliance which
resists soiling and can be readily cleaned should it be
come soiled.
A still further object is to provide such an appliance
deformities have developed therein. More particularly 10 formed
of :a minimum of parts with the joining together
it is concerned with an orthopedic appliance which is
effective for the relieving of pain due to, and for the ulti
mate shrinkage of, bunions.
of such parts being effected in such a manner that the
wearer cannot feel the joints.
Further and more detailed objects of the invention will
Strain, ill ?tting shoes, or muscular weaknesses are
in part be obvious and in part be pointed out as the de
common causes for nrisalignments creating deformities 15 scription
to follow, taken in conjunction with the ac
in the foot which commonly manifest themselves in the
companying drawing proceeds.
enlargement and inflaming of the main joint of the great
In that drawing:
toe, which enlargement is commonly called a “bunion.”
FIG. '1 is a fragmentary bottom plan view of the plantar
Hereto?ore, most of the devices employed for the relief
aspect of a human right foot with the appliance in ac
of pain due to bunions are aimed only at the cushioning 20 cordance with the preferred form of the invention in
of the tender joint for providing temporary relief without
place thereon.
really correcting the condition. Even such mere pain
relieving devices made it di?icult to insert the foot in
form of appliance as shown in FIG. 1 but in this instance
the shoe when the device was already applied to the foot.
being formed for application to the left foot.
Thus the attempt to provide‘relicf was often accompanied 25
FIG. 3 is a view similar to FIG. 2 of a simpli?ed
by the introduction of discomfort of a different nature,
form of appliance in accordance with the invention, such
i.e., discomfort of the shoes being too tight.
appliance being applicable to either foot.
The device of the invention eliminates the foregoing
FIG. 4 is an enlarged perspective view of a modi?ca
drawbacks of prior art constructions and goes well be
tion of the appliance of FIG. 2, in this instance shown as
yond most prior art practices by really getting to the root 30 viewed
from above instead of from beneath.
of the trouble and providing a cure for it. Principally,
FIG. 5 is an end elevational view of the preferred
the appliance of the invention, while giving relief from
form as shown in FIG. 2, as seen from the left hand end
pain due to bunions, acts ‘at one and the same time to cor
of that ?gure; and
rect the abnormalities of the foot which bring about the
FIG. '6 is a sectional view taken on line 6—6 of FIG.
bunion condition. The appliance of the invention does 35 5 and
looking in the direction of the arrows.
this, while, at the same time, being so constructed and
healthy foot there are effective longitudinal and
being formed of such material that it can be worn on
transverse arches which cause the weight of the body to
the foot inside the shoe without any noticeable crowding.
be carried and distributed between the outer side of the
Though the appliance of the invention ?nds its geatest
the ball of the foot, the toes, and the center of the
applicability in providing relief from, and ‘a cure for bun 40 foot,
heel. In the development of a bunion, a general warp
ions, it does so by correcting the foot conditions caus
ing of :a foot structure, normally takes place. This in
ing the bunions. Thus the invention appliance has utility
volves a lengthening of the inner border of the foot, ac
for the correction of such foot conditions whether bun
companied by a fanning out of the digital bones toward
ions be present or not. Several corrective measures are
incorporated in the appliance in order to correct the con 45 ‘ the outer border with a tendency of the great toe to lie
not on its plantar surface, but on its side. Also, all of
ditions which create bunions, but, not all of the condi
the toes become raised from their normal position. Ac
tions are present, the appliance nevertheless correct for
companying this, there is a rotation of the heel which
those that are.
‘shifts the weight from its [center to its inner position.
Also, contrary to the results achieved from the use of
The appliance of the invention incorporates corrective
prior art appliances, the appliance of the invention re 50 measures
for correcting all of these conditions together.
sists soiling to a high degree, can be readily cleaned
These measures act together in restoring the foot to its
when it becomes soiled, has no parts to deteriorate
normal posture.
through contact with the body, and thus has a long and
In its preferred form, the appliance of the invention,
uniformly effective life should the conditions to be cor
shaped for the right foot in FIG. 1 and left foot in FIG. 2,
rected for be stubborn resisting correction.
is generally indicated at 2. The base portion of the ap_
It is, accordingly, the principal object of the invention
is a relatively thick, ‘but highly compressible
to provide an appliance for ‘application to the human
sole cushion member 3. The forward portion 3a of this
foot to restore the foot to normal posture when one or
member extends transversely ‘across beneath the inner
more deformities have developed therein.
portions of the big toe and the second toe. A strap
Another object is to provide such an appliance which 60 4, preferably formed of the same material as that of the
cures bunions through the correction of the deformities
sole member 3, extends from one lateral extremity of
creating them.
the forward portion 3a of the sole member 3- into a
Another object is to provide such an appliance which
laterally positioned loop 4 which returns to again join
gives relief from the pain due to bunions while providing
up with the portion 3a at its other lateral extremity. '
a cure for the same.
The joining of this looped portion 4 to the portion 3a
of the sole is of importance for the big toe and second
toe extend through the loop so formed and every effort
must be made to prevent irritation of them. Accordingly,
the joint at the end ‘5 as seen in FIG. 2 is on such an angle
that it extends almost in parallelism with respect to the
part of the toe which engages the inner surface 3b- of the
portion 3a. The line of joinder here is shown at 12 and
as also seen in FlG. 5, the joint is effected merely be
tween two opposed surfaces.
A somewhat different type of joint is shown where the
looped portion 4 comes around to join up with the op
posite end of the portion 30. Here the portion 3a is re
junction with the separator element, provide the three cor
rective measures needed for the eventual elimination of
the bunion.
In addition, the' added thickness and position of the
contoured heart shaped auxiliary pad ‘lifts the inner por
tion of the ball of the foot and gently rolls the foot to
ward its outer border. This, then, produces another aspect
‘of normal foot posture.
The exertion of pressure by the two lobes 14a and 14b,
‘one on the metatarsal joints of the second and third toes,
and the other behind the head of the metatarsal of the
great toe, causes these toes to curl downwardly as they
should, thus causing them to take the weight they are
cessed to receive the end 11 of the loop member 4 and
intended to carry. The separating element a acting in
the loop member 4, being rectangular in cross section,
has one surface 11a secured to one face 30 of the re 15 consert with the action of the auxiliary pad, restores the
great toe to its normal position resting on its plantar
cess, and has another face 11b secured to the bottom
surface, in which position it again properly supports its
face 3d of, the recesss. Whether the joint be of this
share of the body weight.
type, ‘or of the type indicated at 12, the engaging action
As previously indicated, all parts of the appliance of
of the surfaces 3e and 3b against the toes, is just the
same. There is no rubbing of the toe against the cement 20 the invention are preferably made of one and the same
material. This material is highly compressible while also
joint itself, and any rigidity introduced into the otherwise
resilient. It is soft to the contact with the foot and does
not readily become soiled from contact with the foot and
absorption of body greases or acids. It is also non al
lergic and non toxic. Certain of the ?re pore cellular
materials now on the market meet these criteria, though
various ‘of them are not as good in this respect as others.
a depth preferably equal to that of the looped member
preferable material, with polyether urethane foam being
highly flexible material by the use of the adhesive secur
ing the sections of material together, is so directed that
the portions of the ?exible material positioned between
the toe and joint provide a resilient buffer against such
The loop 4 receives both the big toe and the second toe
Materials produced by foaming appear to be preferable,
but, in order for the proper corrective effects to be
with the urethane foams standing out among them. In
achieved, it is desirable to maintain those toes in sepa
rated relationship. Accordingly, a separating strut 6 of 30 fact, polyester urethane foam appears at present to be the
4, extends across the interior ‘of that loop from the upper
surface of the portion 3a to the inner surface of the loop
4-‘. The positioning of the strut 6 to the right or left center
of the loop, as viewed in FIG. 2, is dependent upon 35
whether the appliance is formed for application to the
right or to the left foot. The appliance as seen in FIG. 2,
is intended for application to the left foot so the strut 6 is
a close second. A suitable polyester urethane foam is
known as Curon 503A made by Reeves Brothers Inc. of
1071 Sixth Avenue, New York 18, N.Y. It is to be
understood, however, that the invention is not to be con
sidered as being limited to the use of the presently pre
ferred foam material, inasmuch as others may already be
in existence ‘or may be developed in the future which will
provide the desirable characteristics for the material, as
positioned somewhat to the right of center, leaving a
larger opening ‘8 for the big toe than the opening 9 for 40 above pointed out, to the same, or to even greater extent
the second toe.
The reverse condition will be seen to
prevail in an appliance formed for application to the right
foot, as seen in FIG. 1. The ends 6a of the strut 6 are
than the presently preferred material.
With regard to adhesive employed in securing the vari
ous parts of the appliance together, it is important that
this be the right one. in the first place, the joint or seam
must be soft and stay soft. Thus adhesive that is or
might becomes hard must be avoided. The adhesive
must retain its soft characteristics through continued use
of the appliance, washing of the same, exposure to per
From the description so far it will be apparent that
spiration, etc. Furthermore, the adhesive must be non
besides providing a substantial sole cushion for the under
surface of the foot, the appliance provides a transverse 50 toxic and non allergic. For the securing together of the
polyurethane foams an adhesive, which meets such re
cushion beneath the beginning portions ‘of the toes, pro
quirements is known as Pliotac 13-6 and is put out by
vides a separator for the toes, and provides a cushioning
the Goodyear Tire and Rubber Company of Akron, Ohio.
for the big joint of the big toe, or for any bunion present.
secured by suitable adhesive to the inner surfaces of the
loop 4, and the joint here is obviously so positioned any
stiffness ‘or rigidity it might have will not be felt by the
The looped portion ‘4 provides that cushioning. Further
more, the parts are so formed and related to each other
and to the foot which they are applied, that the appliance
once seated in place, will remain in its seated position.
It will not create discomfort by shifting around with re
spect to the foot as happens with the various prior art
Again referring to the FIG. 2 ‘form and again appreci
ated that the same is a mere reversal of the FIG. 1 form,
A pad made of the material indicated and having the
parts thereof secured together by use of the adhesive in
dicated twill compress so as to ?t easily within the shoe,
though the thickness of each layer of the material is of
the order of approximately one-half inch. The adhesive
will not be noticeable and the appliance can be washed ‘
60 in an ‘ordinary home washing machine without ‘disturbing
its initial characteristics or altering the effectiveness or
condition of the adhesive.
attention is directed to the heart shaped auxiliary cushion
While the auxiliary pad portion 14 may be formed in- r
14,, preferably formed as a separate member suitably
tegrally with the main sole portion 3, it is preferably
secured to the undersurface of the rear portion of the sole 65 formed spearately and adhered to the sole portion 3 by
cushion 3‘. This heart shaped auxiliary cushion 14 has
a layer of adhesive as shown at the line r15 in FIGS. 2, 5
two forwardly extending lobes 14a and 14b. The lobe
and 6. Here the areas to be adhered together are sub- .
14a is formed to underlie the second and third metatarsal
stantial so the utilization of the correct adhesive is at
joints, at the position where callouses often vform, sup
least of the same importance as is the case in respect of
porting these joints at that position. The lobe 14b lies 70 the joints 12, 11a and 11b.
under and just behind the head of the metatarsal bone of
. FIG. 3 shows a somewhat simplified modification of ,
the big toe and is thus positioned to supply pressure from
the FIG. 2 form, which is fully effective for the correct
the rear of that joint. Pressure from either of these pres
ing ‘of conditions which have not become severe. Also,
sure positions tends to restore the normal position of the
it can be used in those situations where the wearer already
displaced great toe. These two supports, taken in con 75
3,094,985 '
has separate metatarsal support provided in his shoe.
This form may also be furnished in a kit including sepa
rate auxiliary sole cushions, and adhesive so that such
auxiliary cushions may be applied or not by the user as
In the simpli?ed FIG. 3 form, the single ply sole cush
ion 3 is the same as that of FIG. 2, so carries the same
reference character. Likewise, its transverse forward
terial, while any joints present are effected by the use of
a suitable adhesive as already described.
‘In the foregoing, a preferred and two modi?ed embodi
ments of the invention have been described with reference
to the accompanying drawing. It is, of course, to be
understood that this showing and description is for illus
trative and not for limiting purposes. Various modi?
cations of the appliances shown might well suggest them
selves to one skilled in the art without, however, depart
portion 3a is the same, as is the loop member 4, whose
ends are adhered to the lateral extremities of the portion 10 ing vfrom (the principles of the invention involving the
3a. In this instance, the same type of single surface joint
various features for correcting foot deformities as Well
12 is used at both ends ‘5 of the loop member 4. Again
as giving relief against the effect of those deformities
suitable adhesive having the characteristics discussed
above is employed in the joint "12. This simpli?ed ap
pliance is intended to be used on either the right or left
foot. Thus the separator member ‘6, instead of being
placed off center as is the case in FIG. 2, extends across
the middle of the loop 4. Accordingly, passages 8a of
While the correction is being effected.
Speaking more generally, it is to be understood that
since certain changes may be made in the above article,
‘and different embodiments of the invention could be
made without departing from the scope thereof, it is
intended that all matter contained in the above descrip
tion or shown in the accompanying drawing shall be
equal width are provided at either side of the separator
member 6.
interpreted as illustrative and not in a limiting sense.
A more elaborate modi?cation of the invention for use
Having described my invention, what I claim as new
in correction of more severe conditions, while giving re
and desire to secure by Letters Patent is:
lief in the course of that correction, is shown in FIG. 4.
1. A foot corrective and pain relieving appliance com
The appliance here shown is for use on the left foot, it
prising, a base pad member formed as a section of readily
again being understood that a mere reversal of the posi 25 compressible resilient foamalike material shaped to under
tion of the parts would render it applicable for use on
lie the forward portion of the sole of the foot and having
the right foot. ‘The base pad 13 in this instance, rather
a forwardly extending transverse portion formed to under
than being a simple ?at member, has its inner border
lie the big toe and second toe of the foot, a loop element
turned upwardly as seen at 17 to form an integral side
formed of substantially the same material as that of said
wall entirely enveloping the ‘bunion and extending up 30 base pad member extending up four one end of said trans
around onto the dorsal aspect of the foot. The loop por
verse portion and around ‘to the other end of said trans
tion 4a in this instance also is an integral extension of
verse portion in spaced relation with respect to said
the base pad 13. The portion 4a extends away from the
transverse portion to form a substantially open loop there
upturned edge v17 at the position 17a and loops around
with, ‘and a separator member extending between the
to the opposite side of the pad where it is adhered at 12a
upper surface of said transverse portion and the under
to the portion 13a, the integral forward extension of the
surface of said loop portion and secured to both of the
base pad 13. The joint ‘12a between the extension 13a
same, thereby separating said open loop into two pas
and the loop portion 4a is preferably at a position be
sages, one for the big toe and the other for the second
tween the second and third toes, and, in the manner as
whereby proper relative positioning of the big and sec
pointed out above, is so angled and is effected by the use 40 ond toes is effected for curative purposes‘ While at the
of such an adhesive that no ‘discomfort whatsoever is im
same time relieving pain and preventing irritation, and
parted to the foot.
adhesive means securing said loop element to said trans
The separator member 6 is the same as that employed
verse portion.
in the previous forms, ‘being however positioned as in
-2. A foot corrective appliance as in claim 1, said loop
FIGS. 1 and 2. to provide a wider passage at 8 for the
element being secured to said transverse portion in a long
great toe than the passage 9 for the second toe. Here,
however, the wall of the passage 8, at the side thereof
which overlies the outer surface of the great toe, has a
small pillow member \10‘ secured to it in a position to en
gage the outer surface of the great toe forwardly of the
scarfed lap joint with a substantial portion of said mate
rial forming a cushion between said adhesive and the
interior of said loop for prevention of irritation which
could result from contact with said adhesive.
3. A foot corrective appliance as in claim 1, said ad
hesive being relatively soft and pliable to prevent irrita
It is next to be noted that in this form the heart shaped
supplemental pad, 24, is adhered to the inner surface of
the base pad 13 throughout their joining surface 25 in
stead of being adhered to the undersurface of the base
pad 3 as in the form of FIGS. 1 and 2. Furthermore, the
heart shaped pad 24 is enlarged and positioned so that
the portion 24b turns up with and inside of the portion 17
while still providing the same support as does the por
tion 14b of FIG. 2. The portion or lobe '24a-of the pad
provides the same protection and support as does the por
tion 14a. In addition, the construction here leaves a
pocket 126 between the inner end 10a of the pillow mem
ber 10 and the forward surface 240 of the lobe 24b. This
pocket very elfectively receives and protects the enlarged
in?amed joint itself. Thus while the other elements of
the appliance are providing their special corrective ef
4. A foot corrective appliance as in claim 1 and includ
ing a supplemental pad member secured to a face of said
pad member extending upwardly from said face and over
lying a portion thereof.
5. .A foot corrective I ppliance as in claim 4, said sup
plemental pad being substantially heart shaped and being
positioned with one lobe of said heart shape extending
toward one side of said base member and the other lobe
of said heart shape extending forwardly of said one lobe
and toward said forward transverse portion.
16‘. A foot corrective appliance as in claim 4, said sup
plemental pad being secured to the under-surface of said
base pad.
7. A foot corrective appliance as in claim 4, said sup
plemental pad being secured to the upper surface of said
fects the in?amed joint or bunion is protected and almost
base pad.
surrounded by the readily compressible resilient material
‘8. A ‘foot corrective appliance as in claim 7, said base
pad being turned upwardly along one edge to lie up
of the appliance, so that relief as well as correction is
alongside of and part way over on to the inner side of the
foot adjacent the big toe.
As in the previous forms, the more elaborate appliance
9. A foo-t corrective appliance as in claim 7 and in
shown in FIG. 4, preferably has all of its parts made out
of the same readily compressible foam like resilient ma 75 cluding a pillow element formed of said material, said
pillow element being secured within said loop at one side
thereof in \position to engage the 1outer edge surface of
the big toe forwardly of the main joint thereof.
110. A foot-corrective appliance ‘as in claim 1, said 100p
element extending integrally from said transverse portion
at one end and being _seeured to the other end ‘of said 5
in the ?le
of this patent
S~cho11_'_ ______ _>_ _____ __ Mair.11,1913
1,103,465 '
2,332,47 3
Arrowsmith ___________ __ July 14,
Salander ______________ __ Oct. 19,
Day _________________ __ Mar. 4,
Muller ______________ __ Dec. 27,
McGlumphy ___________ __ Mar. 7,
Digate ______________ __ June 21,
Levitt _________________
~--' --------- __
22’, 1959
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