EP2136666A1 - Device for providing self-adjustable arch-support and method making the same - Google Patents
Device for providing self-adjustable arch-support and method making the sameInfo
- Publication number
- EP2136666A1 EP2136666A1 EP07782136A EP07782136A EP2136666A1 EP 2136666 A1 EP2136666 A1 EP 2136666A1 EP 07782136 A EP07782136 A EP 07782136A EP 07782136 A EP07782136 A EP 07782136A EP 2136666 A1 EP2136666 A1 EP 2136666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inflatable bladder
- valve
- foot
- user
- foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
- A43B17/03—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air
- A43B17/035—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a gas, e.g. air provided with a pump or valve
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/142—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the medial arch, i.e. under the navicular or cuneiform bones
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone
Definitions
- the present invention relates to orthotics and custom conformable devices, including custom fitting orthotics.
- the present invention also relates to a method of making an orthotic and a custom conformable device, including custom fitting orthotics.
- Orthotics is the science of treating anatomical disorders, such as joint, bone, or muscle disorders, with anatomical supports, such as braces, inserts, and cushions.
- Anatomical supports have been commonly used both to increase comfort and to aid in medical treatments.
- arch supports have been used for many years for both added foot comfort when wearing shoes, and for treatment of foot and knee problems.
- Arch supports fall into one of two common categories: (1) inserts that increase padding or cushion; and (2) corrective devices, commonly referred to as orthotics, that correct foot position to relieve stress on the foot, knee or leg. Orthotics are commonly used to support feet with normal alignment, and to correct feet that have excessive pronation.
- Pronation is the inward rotation of the middle part of the foot, and is commonly associated with a low arch.
- One function of orthotics is to prevent the natural pronation of the normal foot during walking.
- Three separate arches are described that support the weight of the body. These arches are not rigid and provide flexibility and leverage for walking.
- With normal walking the foot lands in a supinated or high arch position at heel strike. As weight is accepted by the foot during walking, the arch flattens and the foot pronates until it is at maximum pronation and maximum load, approximately 25% of the way into the stance. The foot then resupinates until push off, when all weight is removed from the foot.
- ⁇ P3161400170043.DOC ⁇ are custom made to fit a particular foot size and shape, and thus they ought to fit comfortably on each patient.
- One problem with custom molded orthotics is that they often require the services of an expert to custom fit the orthotic, and they can be cost prohibitive due to the time and expertise required to custom make each orthotic.
- the present invention therefore provides for a device for providing self-adjustable support for a user's foot.
- the device may comprise an insole member, an inflatable bladder arranged on the insole member and configured to generally conform to a portion of the user's foot, an open cellular foam material arranged in an interior of the inflatable bladder, a valve for controlling passage of air into and from the open cellular foam material contained in the interior of the inflatable bladder, and a stiffener member arranged beneath the insole member in an area of the inflatable bladder.
- the open cellular foam material may substantially fills the interior.
- the inflatable bladder may be formed by an upper layer of the insole member and the stiffener member.
- the insole member may comprise a fabric layer arranged on an upper surface, and wherein the inflatable bladder is defined by the fabric layer and the stiffener member.
- the insole member may comprise a four-way stretch fabric laminated with a polyurethane film, wherein the inflatable bladder is defined by the four-way stretch fabric laminated with the polyurethane film and the stiffener member.
- the insole member may comprise waterblown PU foam covered by a layer of four-way stretch fabric laminated with a polyurethane film.
- the device for providing self-adjustable arch support for a user's foot may be structured and arranged so that the inflatable bladder positioned under the arch of a user's foot
- the valve may comprises one of: a finger-activated valve, a button valve, a central stem valve, a duck-bill valve, an umbrella valve, a ball valve, a valve adapted to be coupled to a tension member that can be activated by placing the tension member in tension, and a multiple activation valve.
- the valve may be arranged on a angled side portion of the stiffener member.
- the open cellular foam material may comprise medium-density polyurethane open cell foam.
- the open cellular foam material may comprise four pound density foam.
- the open cellular foam material may comprise at least one of open cell foamed polyester, open cell foamed polyether, and combinations thereof.
- the open cellular foam material may comprise at least one of open cell glassy carbon foam, a combination of open cell foam and semi-closed foam, a combination of open cell foam and closed cell foam, a composite that includes open cell metal foam, and combinations thereof.
- the open cellular material may retain a shape that conforms to the user's arch as defined by a non-weight bearing position during movement of the foot.
- the device for providing self-adjustable arch support for a user's foot wherein the inflatable bladder is positioned substantially exclusively under the arch.
- the inflatable bladder prior to inflation, may have a volume which is less than a space under the arch of the foot.
- the invention also provides for a method of making a device for providing self- adjustable support, wherein the method comprises forming an inflatable bladder on a support member, the inflatable bladder being defined by a material layer of the support member and a stiffener member and comprising an open cellular foam material arranged in an interior of the inflatable bladder and mounting a valve to a wall of the inflatable bladder.
- the support member can be a sole member and the device can provide arch- support for a user's foot.
- the inflatable bladder may be formed on the insole member in an area
- the method may further comprise, after the connecting, trimming the material layer to a predetermined shape.
- the method may further comprise, before or during the connecting, compressing the open cellular foam material between the stiffener member and the material layer. [0025] The method may further comprise, before the molding, arranging the material layer in the mold.
- the method may further comprise, before the connecting, shaping the stiffener member.
- the portion of the stiffener member may comprise a bent side wall portion of the stiffener member.
- the stiffener member may comprise a one-piece bent and shaped rigid or semi-rigid polyurethane member.
- the stiffener member may comprise 55 mil P.T. 9800 polyurethane.
- the open cellular foam material may comprise medium-density polyurethane open cell foam.
- the open cellular foam material may comprise four pound density foam.
- the device made by the method may be one of: a shoe insert; a pillow; an arm rest; a back rest; and an orthopedic brace.
- the invention also provides for a device for providing self-adjustable arch support for a user's foot, wherein the device comprises a support member, an inflatable bladder arranged
- FIG. 4 illustrates a right-side view of FIG. 1
- FIG. 9 illustrates a cross-section view of a portion of a two-piece mold which can be used to mold the sole member shown in FIG. 8.;
- FIG. 11 illustrates a cross-section view of the molded left and right side sole members removed from the mold and with the mechanically attached sheet material
- FIG. 13 illustrates a cross-section view of FIG. 12
- FIG. 15 illustrates a cross-section view of FIG. 14 but with the valve not shown in cross- section;
- FIG. 17 illustrates a cross-section view of FIG. 16
- FIG. 18 illustrates a bottom view of the molded left and right side sole members mechanically attached sheet material and after the stiffener members have been secured to the upper material layer shown in FIG. 5;
- FIG. 19 illustrates a top view of FIG. 15.
- FIGS. 1-4 Illustrated in FIGS. 1-4 is one embodiment of a custom conformable device 1 incorporating features of the present invention.
- the custom conformable device 1 comprises an insole or insole member 2 and an inflatable bladder 3.
- Insole 2 is shaped such that when placed in a shoe, insole 2 substantially retains the position of inflatable bladder 3 under the arch of the user's foot (not shown).
- the overall length AL of the bladder portion of the device 1 can be sized for different types of users.
- the device 1 can have an overall length OL (see FIG. 3) which can be standardized as, e.g., small, medium, large, etc,, for use by different users.
- valve 4 that opens to the atmosphere and regulates the passage of air flow.
- the bladder 3 is formed by upper fabric layer UML
- inventions of the present invention extend only throughout part of the bottom surface of the foot, such as, for example, the surface below the arch and the toe area, or the arch of the foot and a central area of the foot, or the arch of the foot and a heel area of the foot, etc,. Still other embodiments extend throughout part of some other region of the foot, such as the side and the top.
- the expandable material according to the present invention comprises solid material throughout the expandable material itself. This material provides a supportive element that does not shift throughout the interior of a container when the expandable material is contained therein and pressure externally applied to such container changes.
- a foam is an illustrative example of an expandable material.
- the expandable material according to the present invention provides itself a material medium that does not shift as would a fluid when it is within a container subjected to changing external pressure.
- the property of "not shifting as a fluid” as used herein indicates that the substance to which it is applied does not flow when it is within a container that is subjected to changing external pressure.
- the expandable material according to the present invention provides a material medium that draws fluid throughout at least a portion of such material medium itself.
- valve 4 Before use, valve 4 is opened and inflatable bladder 3 and expandable material 5 are compressed, with inflatable bladder 3 substantially deflated so that conformable device 1, and more specifically the bladder area, is substantially flattened. Valve 4 is then closed (with the preferred valve this occurs automatically when it is not in use) and the external compressive pressure is released or at least decreased, thus creating a degree of rarefaction inside inflatable bladder 3 when expandable material 5 tends to expand upon the release or diminution of the external pressure. This degree of rarefaction in the inflated device with respect to the surrounding environment is concisely referred to for simplicity as a vacuum. With valve 4 closed, expandable material 5 is prevented from expanding to a large extent.
- Inflatable bladder 3 of the device 1 thus retains a substantially flattened form until valve 4 is opened and expandable material 5 is allowed to expand, thus drawing air into and inflating inflatable bladder 3.
- Valve 4 is closed when inflatable bladder 3 has inflated to a desired extent, and expandable material 5 further expands to some extent, which is termed as undergoing an incremental expansion, with valve 4 closed. This incremental expansion creates a vacuum within the inflated bladder 3 that contributes to the retention by the bladder 3 to the shape of the
- an extension member e.g., a strap (e.g., a flexible strap) or a tension member (e.g., a string) may be coupled to a valve such as valve 4 is used to open and close the valve without having to insert a finger through the space between the foot and the shoe all the way down to reach the valve itself.
- a valve such as valve 4 is used to open and close the valve without having to insert a finger through the space between the foot and the shoe all the way down to reach the valve itself.
- a tension member e.g., a string
- an example of such extension member is the extension provided in various duckbill valves to actuate the valve and regulate the fluid flow therethrough.
- shoe is used herein to describe a foot-borne item on at least a part of which the foot rests, and such that this item moves together with the foot when walking or displacing the foot.
- This term as used herein comprises, but is not limited to, different types of shoes, such as athletic shoes, dress shoes, slippers, boots, casual shoes, sandals, shoes that are configured for use in conjunction with another device, such as skates and skis, and orthopedic shoes.
- FIGS. 5-19 illustrate one non-limiting way in which the device 1 can be made according to the present invention.
- the method begins by cutting a section, e.g., a rectangular or square-shaped section of the material which will form the upper surface or upper material layer UML of the insole device 1.
- the section UML is preferably sized to allow for the making on two insole devices 1 (whose outline are shown in dashed-lines) at a time, i.e., both the left side and right insole devices 1.
- the section UML is cut from a roll of sheet material (see FIG. 6) and is preferably a fabric layer, and most preferably, a layer of four- way stretch fabric laminated with a polyurethane film.
- this step takes place in a mold M, and more specifically a two-piece heated mold.
- the mold is shown in the open position with the material sheet shown in FIG. 5 arranged between the upper male mold and the lower female mold.
- the step begins by a user placing the section UML into the open mold M with the fabric layer facing upwards, i.e., facing the male or upper mold half Ml and with the polyurethane film layer facing downwards, i.e., facing the female or lower mold half M2.
- the section UML is temporarily secured to the upper mold half Ml via pins (not shown) arranged on the upper mold half Ml.
- the foam can be e.g., a milliken reacting red X-64 material.
- the mold M is then closed for a period of time until the waterblown PU foam solidifies (see FIG. 10).
- the molded sole member shown in FIG. 8 becomes mechanically attached to the sheet material shown in FIG. 5. This step results in the formation of two of the molded member(s) shown in FIGS. 7 and 8 and their mechanical attachment to the section UML.
- the molded sub-assembly is then removed from the mold M and emerges with the configuration shown in FIG. 11.
- a synthetic resin stiffener or stiffener member or stiffener support member 7 having the configuration/shape shown in FIGS. 12 and 13 is formed.
- the member 7 is preferably punch cut from a sheet of 55 mil P.T. 9800 polyurethane.. This shaping step preferably simultaneously forms both the outer shape of member 7 and the valve opening VO.
- the synthetic resin stiffener support member 7 is then deformed or bent, i.e., along bend line or zone BL, to the shape shown in FIGS. 14 and 15.
- the valve 4 is also secured and/or fixed to the stiffener 7, preferably by RF welding the flange of the valve 4 to the upper surface of the stiffener member 7 in an area of the opening VO. As is shown in FIG.
- this securing step produces a welding zone WSl which extends completely around the stiffener 7 and, together with the material UML, forms the inflatable bladder 3.
- the inflatable bladder 3 is defined by the stiffener 7 and the upper material UML. That is, the material UML forms the upper wall of the bladder 3 and the stiffener 7 forms the lower wall of the bladder 3.
- Embodiments of expandable material which will form foam member 5 according to the present invention also include open cell foam, open cell foamed polyester, open cell foamed polyether, open cell polyurethane, open cell glassy carbon foam, combinations of open cell foam and a material, such as semi-closed cell and closed cell foam, for added resilience.
- Mechanisms for inflating a bladder according to the present invention include open cell foam, open cell foamed polyester, open cell foamed polyether, open cell polyurethane, open cell glassy carbon foam, combinations of open cell foam and a material, such as semi- closed cell and closed cell foam, for added resiliency, and combinations of the foregoing embodiments of mechanisms for self-inflating a bladder.
- Open cell foam such as medium density polyurethane open cell foam, is a preferred embodiment of a mechanism for inflating a bladder.
- Additional embodiments of mechanisms for inflating a bladder according to the present invention generally include open- cell-comprising materials that perform with respect to compression and expansion in a manner similar to the foregoing examples of mechanisms for inflating a bladder.
- FIG. 1 For substantially retaining the shape of a bladder according to the present invention, comprise a composite of a foam and open cell metal foams, which have the additional advantages of a resilient component and a heat-dissipating component, combinations of the foregoing embodiments of mechanisms for self-inflating a bladder.
- Additional embodiments of mechanisms for substantially retaining the shape of a bladder according to the present invention generally include open-cell-comprising materials that
- DOC ⁇ perform with respect to shape retention in a manner similar to the foregoing examples of mechanisms for substantially retaining the shape of a bladder.
- Embodiments of mechanisms for substantially retaining the shape of a bladder according to the present invention provide a material medium that does not shift as a fluid when it is within a container subjected to changing external pressure. Furthermore, embodiments of mechanisms for substantially retaining the shape of a bladder according to the present invention provide a material medium that draws fluid throughout at least a portion of such material medium itself.
- embodiments of mechanisms for substantially retaining the shape of a bladder according to the present invention include materials such as those described herein, including these materials in mechanically shaped form, in particulate form, thermoformed, and combinations thereof.
- the mechanisms for substantially retaining the shape of a bladder and the mechanisms for inflating a bladder can be embodied by the same material in some embodiments of the present invention, whereas they are embodied by different materials in other embodiments of the present invention.
- the closed cell materials in structures of composites with closed cell materials can comprise and/or resemble, in embodiments of the present invention, a cellulose sponge, with all or at least most of the cells separated from one another by walls.
- the structures of open cell materials comprised in embodiments of the present invention resemble a loofah sponge, with holes of varying size.
- the preferred hole size range of open cell materials being such that the expandable material effectively draws fluid into its interior and thus into the interior of its surrounding bladder through the open valve when the expandable material expands from a compressed state.
- the expandable material can also be loose while contained within the bladder in some embodiments of the present invention.
- the bladder can be embodied by a shell that is integrally formed around the outer surface of the expandable material in other embodiments of the present invention.
- a supportive core of open cell foam is bonded between two layers of closed cell foam that enclose the open cell foam core in fluid-leak-proof containment and the bonded material has a valve to control fluid flow therethrough.
- the expandable material or the bladder can also comprise a plurality of laminated materials in other embodiments of the present invention.
- the expandable material and the bladder can comprise a plurality of laminated materials in still other embodiments of the present invention.
- a preferred embodiment of the present invention includes an insole that substantially retains the bladder in a selected position, such as below the arch of the foot of the user when the insole is placed in a shoe and worn by the user.
- the insole is preferably attached to the bladder in this embodiment.
- Illustrative arm rests as custom conformable devices made according to the present invention are embodied by cushions that provide custom fit support when in contact with any one of the various parts of a user's arm.
- Arm rests according to the present invention include embodiments for use with the arm merely resting on the arm rest, and embodiments for use with the arm rest removably attached to the arm, such as by strapping the arm rest to the arm.
- Illustrative orthopedic braces as custom conformable devices made according to the present invention are embodied by cushions that are placed by a region of the anatomy of the user, such as a lower extremity region, and a brace framework, and by braces which have a cushion according to the present invention attached to or as an integral part of the brace.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2007/066891 WO2008130401A1 (en) | 2007-04-18 | 2007-04-18 | Device for providing self-adjustable arch-support and method making the same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2136666A1 true EP2136666A1 (en) | 2009-12-30 |
EP2136666A4 EP2136666A4 (en) | 2012-04-18 |
Family
ID=39875773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07782136A Withdrawn EP2136666A4 (en) | 2007-04-18 | 2007-04-18 | Device for providing self-adjustable arch-support and method making the same |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2136666A4 (en) |
WO (1) | WO2008130401A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9468252B2 (en) | 2010-08-23 | 2016-10-18 | Vito E. Dimatteo | Sandal with pneumatic support |
US8869431B2 (en) | 2010-08-23 | 2014-10-28 | Vito Dimatteo | Sandal with pneumatic support |
US20140310988A1 (en) * | 2011-12-13 | 2014-10-23 | EQUIPOWER SPORTS LTD.90930496 BC Ltd) | Footwear for Use in Specialized Activities |
KR101380834B1 (en) * | 2012-08-30 | 2014-04-04 | 장정오 | footwear insole and manufacturing method thereof |
CN108312414A (en) * | 2018-02-22 | 2018-07-24 | 方柏明 | A kind of damping, preparation method and the mold for preparing damping |
NL1044201B1 (en) | 2021-11-03 | 2023-06-02 | Plt Products B V | Podotherapist device and methods of use thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB730941A (en) * | 1953-03-05 | 1955-06-01 | Heinrich Horlacher | Improvements in or relating to foot arch supports |
US4462171A (en) * | 1982-05-28 | 1984-07-31 | Whispell Louis J | Inflatable sole construction |
DE4237078A1 (en) * | 1991-11-04 | 1993-05-13 | Georg Dipl Ing Manczak | Multi-layered foot cushion - has reinforced base layer, soft leather covering layer with filling extending to behind front pressure points, enclosed in sheets of foil |
US5685090A (en) * | 1993-03-26 | 1997-11-11 | Nike, Inc. | Cushioning system for shoe sole and method for making the sole |
US5993585A (en) * | 1998-01-09 | 1999-11-30 | Nike, Inc. | Resilient bladder for use in footwear and method of making the bladder |
US20030046831A1 (en) * | 2001-09-12 | 2003-03-13 | Westin Craig D. | Custom conformable device |
US20040003514A1 (en) * | 2002-07-08 | 2004-01-08 | Cole Gary P. | Foot orthosis |
-
2007
- 2007-04-18 EP EP07782136A patent/EP2136666A4/en not_active Withdrawn
- 2007-04-18 WO PCT/US2007/066891 patent/WO2008130401A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB730941A (en) * | 1953-03-05 | 1955-06-01 | Heinrich Horlacher | Improvements in or relating to foot arch supports |
US4462171A (en) * | 1982-05-28 | 1984-07-31 | Whispell Louis J | Inflatable sole construction |
DE4237078A1 (en) * | 1991-11-04 | 1993-05-13 | Georg Dipl Ing Manczak | Multi-layered foot cushion - has reinforced base layer, soft leather covering layer with filling extending to behind front pressure points, enclosed in sheets of foil |
US5685090A (en) * | 1993-03-26 | 1997-11-11 | Nike, Inc. | Cushioning system for shoe sole and method for making the sole |
US5993585A (en) * | 1998-01-09 | 1999-11-30 | Nike, Inc. | Resilient bladder for use in footwear and method of making the bladder |
US20030046831A1 (en) * | 2001-09-12 | 2003-03-13 | Westin Craig D. | Custom conformable device |
US20040003514A1 (en) * | 2002-07-08 | 2004-01-08 | Cole Gary P. | Foot orthosis |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008130401A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2136666A4 (en) | 2012-04-18 |
WO2008130401A1 (en) | 2008-10-30 |
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