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WO2017046098A1 - Proprioceptive arch support with cushion for calcaneal spur prevention - Google Patents

Proprioceptive arch support with cushion for calcaneal spur prevention Download PDF

Info

Publication number
WO2017046098A1
WO2017046098A1 PCT/EP2016/071584 EP2016071584W WO2017046098A1 WO 2017046098 A1 WO2017046098 A1 WO 2017046098A1 EP 2016071584 W EP2016071584 W EP 2016071584W WO 2017046098 A1 WO2017046098 A1 WO 2017046098A1
Authority
WO
WIPO (PCT)
Prior art keywords
proprioceptive
cushion
arch support
foot
user
Prior art date
Application number
PCT/EP2016/071584
Other languages
French (fr)
Inventor
Gorio MANDOZZI
Original Assignee
Mandozzi Gorio
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mandozzi Gorio filed Critical Mandozzi Gorio
Publication of WO2017046098A1 publication Critical patent/WO2017046098A1/en

Links

Classifications

    • 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
    • A43B7/145—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 toes, i.e. the phalanges
    • 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
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/186—Differential cushioning region, e.g. cushioning located under the ball of the foot
    • 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
    • A43B13/188—Differential cushioning regions
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • 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
    • A43B7/143—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 lateral arch, i.e. the cuboid bone
    • 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
    • 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
    • A43B7/1445—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 midfoot, i.e. the second, third or fourth metatarsal
    • 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
    • A43B7/1475—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 type of support
    • A43B7/149—Pads, e.g. protruding on the foot-facing surface

Definitions

  • Proprioceptive arch support with cushion for calcaneal spur prevention Proprioceptive arch support with cushion for calcaneal spur prevention.
  • the present patent application relates to a proprioceptive arch support intended to help a user in keeping a correct position in order to prevent the onset of pathologies related with an incorrect position.
  • the stimulation of specific points in the foot sole permits to correct the position of a user wearing a proprioceptive arch support, reinforce his/her muscle tone and strengthen his/her ligaments.
  • the foot comprises a heel that represents the rear end of the foot, toes that represent the front end of the foot and protrude from a metatarsus, and an arch disposed between the heel and the metatarsus.
  • the foot comprises a lower support surface (S) comprising:
  • SA front surface
  • the rear surface (SP) comprises:
  • SPP rear peripheral area
  • SPC central area
  • SPP rear peripheral area
  • SPA front peripheral area
  • the lower support surface (S) comprises a perimeter edge (BP) comprising an internal edge (Bl) faced towards the other foot of the user and an external edge (BE) faced outwards.
  • BP perimeter edge
  • BE external edge
  • Fig. 2 shows a proprioceptive arch support (200) of the prior art comprising a plurality of cushions in order to cushion and stimulate the lower support surface (S) of the user's foot.
  • the proprioceptive arch support (200) comprises:
  • first front cushion (201 ) a first front cushion (201 ), a second front cushion (202) and a third front cushion (203) with a rectangular shape that are intended to be disposed under the front surface (SA) of the foot,
  • first central cushion (204) intended to be disposed under the central surface (SC) in correspondence of the external edge (BE) of the foot and a second central cushion (205) intended to be disposed under the central surface (SC) in correspondence of the internal edge (Bl) and under the front peripheral area (SPA) of the rear surface (SP) of the foot, and
  • first rear cushion (206) and a second rear cushion (207) intended to be disposed under the rear peripheral area (SPP) of the user's foot.
  • the proprioceptive arch support (200) has a padding (214) in correspondence of the cushions (201 , 202, 203, 204, 205, 206, 207) that is made with pieces of natural rubber.
  • the padding (214) tends to be disposed on the corners of the first front cushion (201 ), of the second front cushion (202) and of the third front cushion (203) because of the rectangular shape of the first front cushion (201 ), of the second front cushion (202) and of the third front cushion (203).
  • the padding made with pieces of natural rubber is hard and uncomfortable for the user.
  • the proprioceptive arch support (200) according to the prior art comprises a stiffening portion (209) made of cardboard or the like in order to stiffen the proprioceptive arch support and prevent the arch support from moving and/or contracting because of the movement of the foot during walking.
  • the stiffening portion (209) is intended to be disposed under the central surface (SC), under the central area (SPC) and partially under the front peripheral area (SPA) of the lower support surface (S).
  • the stiffening portion (209) is substantially shaped as a T" and abuts with the front cushions (201 , 202, 203) on top, with the central cushions (204, 205) laterally and with the first rear cushion (206) on the bottom.
  • the purpose of the stiffening portion (209) is to stiffen the proprioceptive arch support and prevent said arch support from getting deformed by the force exerted by the foot on the proprioceptive arch support when the shoe with the arch support is worn, or during walking.
  • the stiffening portion Being made of cardboard or the like, the stiffening portion intrinsically tends to deteriorate with use and heat, breaking up in small parts. In such a case, the stiffening portion (209) no longer stiffens the proprioceptive arch support.
  • the proprioceptive arch support comprises a separation portion (291 ) shaped as a "U” that abuts with the first rear cushion (206) and with the second rear cushion (207) externally, with the second central cushion (205) internally and partially with the stiffening portion (291 ) on top.
  • the separation portion (291 ) is disposed under the central area (SPC) of the rear surface (SP) of the user's foot.
  • Said central area (SPC) of the rear surface (SP) supports the weight of the user when standing and during walking, when the user's weight is moved from the rear peripheral area (SPP) of the rear surface (SP) of the foot to the front peripheral area (SPA) of the rear surface (SP) of the user's foot.
  • the separation portion (291 ) does not comprise a covering of the type used for cushions and has a lower thickness than the cushions. Therefore the separation portion (291 ) is not in contact with the central area (SPC) of the rear surface (SP) of the user's foot. Consequently, the separation portion (291 ) does not provide any support to the central area (SPC) of the rear surface (SP) of the user's foot.
  • SPC central area
  • SP rear surface
  • a careful examination of a similar arch support has shown that its structural configuration can cause pathologies related with the calcaneal spur in the foot of a user of said proprioceptive arch support.
  • the main purpose of the present innovation is to eliminate the drawbacks of the prior art by disclosing a proprioceptive arch support that improves the support of the user's foot and prevents the onset of the calcaneal spur pathology.
  • a secondary purpose is to disclose a proprioceptive arch support that is not deformed with use.
  • Another purpose of the present innovation is to disclose a proprioceptive arch support that is inexpensive, easy to use, comfortable and lasting.
  • the proprioceptive arch support of the innovation is intended to be disposed under a lower support surface of the user's foot.
  • the lower support surface comprises a front surface in correspondence of toes and of a metatarsus of the user's foot, a central surface in correspondence of the arch of the user's foot and a rear surface in correspondence of a heel of the user's foot.
  • the rear surface comprises: - a rear peripheral area in correspondence of a rear perimeter portion of the heel of the user's foot, which is intended to be the first one to come in contact with the ground during walking,
  • SPC central area
  • the proprioceptive arch support of the innovation has a longitudinal axis and comprises a front portion intended to be disposed under the front surface of the user's foot, a rear portion intended to be disposed under the rear surface of the user's foot and a central portion disposed between the front portion and the rear portion.
  • the proprioceptive arch support comprises:
  • the peculiarity of the proprioceptive arch support consists in the fact that it comprises at least one calcaneal cushion that is disposed on the rear portion of the proprioceptive arch support and is intended to be disposed under the central area of the rear surface of the user's foot,
  • the provision of a calcaneal cushion intended to be disposed under the central area of the rear surface of the user's foot prevents the onset of pathologies related with the calcaneal spur.
  • Fig. 1 is a bottom view of a user's foot
  • Fig. 2 is a top view of a proprioceptive arch support according to the prior art, which is cut in correspondence of the third front cushion;
  • Fig. 3 is a top view of a proprioceptive arch support of Fig. 2 without cushions and with a stiffening portion.
  • Fig. 4 is a top view of the proprioceptive arch support according to the innovation.
  • Fig. 5 is a sectional view of the arch support of Fig. 4 along plane V-V.
  • a proprioceptive arch support according to the innovation is disclosed, which is intended to be disposed under a lower support surface (S) of a user's foot and is generally indicated with referral number (100).
  • the proprioceptive arch support (100) has a longitudinal axis (X-X) and comprises a front portion (A) intended to be disposed under the front surface (SA) of the user's foot, a rear portion (B) intended to be disposed under the rear surface (SP) of the user's foot and a central portion (C) disposed between the front portion (A) and the rear portion (B) of the proprioceptive arch support.
  • the proprioceptive arch support (100) comprises at least one front cushion (1 , 2, 3) disposed on the front portion (A) of said proprioceptive arch support (100) and provided with a substantially quadrangular shape with at least two rounded corners.
  • the proprioceptive arch support (100) comprises a first front cushion (1 ) intended to be disposed in correspondence of the internal edge (Bl) of the lower support surface (S) of the foot, a second front cushion (2) intended to be disposed in correspondence of the external edge (BE) of the lower support surface (S) of the foot and a third front cushion (3) disposed between the first front cushion (1 ) and the second front cushion (2).
  • the proprioceptive arch support (100) comprises at least one rear cushion (6, 7) disposed on the rear portion (B) of said proprioceptive arch support (100) and intended to be disposed under the rear peripheral area (SPP) of the user's foot.
  • the proprioceptive arch support (100) comprises a first rear cushion (6) intended to be disposed in correspondence of the external edge (BE) of the lower support surface (S) of the foot and a second rear cushion (7) intended to be disposed in correspondence of the internal edge (Bl) of the lower support surface (S) of the foot.
  • the proprioceptive arch support (100) comprises at least one central cushion (4, 5) disposed on the central portion (C) and on the rear portion (B) of the proprioceptive arch support and intended to be disposed under the central surface (SC) and under the front peripheral area (SPA) of the rear surface (SP) of the user's foot.
  • the proprioceptive arch support (100) comprises a first central cushion (4) that is substantially shaped as a semicircle and is disposed on the central portion (C) of the proprioceptive arch support.
  • the first central cushion (4) is intended to be disposed under the central surface (SC) in correspondence of the external edge (BE) of the lower support surface (S).
  • the proprioceptive arch support (100) comprises a second central cushion (5) that is shaped as a ring portion and is disposed on the central portion (C) and on the rear portion (B) of the proprioceptive arch support.
  • the second central cushion (5) is intended to be disposed under the central surface (SC) in correspondence of the internal edge (Bl) of the lower support surface (S) and extends until the center of the front peripheral area (SPA) of the rear surface (SP).
  • the proprioceptive arch support (100) comprises a separation portion (91 ) shaped as a portion of a ring to separate said at least one rear cushion (6, 7) from said at least one central cushion (4, 5).
  • the separation portion (91 ) is disposed on the rear portion (B) of the proprioceptive arch support and is disposed between the second rear cushion (7) and the second central cushion (5).
  • the proprioceptive arch support (100) comprises a calcaneal cushion (8) disposed on the rear portion (B) of the proprioceptive arch support and intended to be disposed under the central area (SPC) of the rear surface (SP) of the user's foot.
  • the calcaneal cushion (8) is shaped as an ellipsis with a major axis parallel to the longitudinal axis (X-X) of the proprioceptive arch support (100). Because of said shape, the calcaneal cushion (8) correctly supports and cushions the user's heel during walking, when the user's weight is moved from the rear peripheral area (SPP) of the rear surface (SP) towards the front peripheral area (SPA) of the rear surface (SP) of the foot.
  • SPP rear peripheral area
  • SPA front peripheral area
  • the calcaneal cushion (8) comprises a rear perimeter portion (81 ) abutting with said at least one rear cushion (6, 7) and a front perimeter portion (82) abutting with said at least one central cushion (5, 91 ) and partially with the separation portion (91 ).
  • the proprioceptive arch support (100) prevents the onset of pathologies related with the calcaneal spur.
  • the proprioceptive arch support (100) comprises a lower layer (1 1 1 ) intended to come in contact with a sole of a shoe, an upper layer (1 13) intended to come in contact with the lower support surface (S) of the user's foot and an intermediate layer (1 12) disposed between the upper layer (1 13) and the lower layer (1 1 1 ).
  • the lower layer (1 1 1 ) is made of natural rubber
  • the upper layer (1 13) is made of microfiber
  • the intermediate layer (1 12) is made of cotton.
  • the intermediate layer (1 12) and the upper layer (1 13) are glued together in order to form a single body.
  • the proprioceptive arch support (100) also comprises a soft padding layer (1 14) made of vulcanized rubber in correspondence of the cushions.
  • the padding layer (1 14) has a rigidity of 48/52 shore A and a granulometry comprised between 0.8 mm and 2.5 mm.
  • the padding layer is soft and comfortable for the user, being made of vulcanized rubber with a low rigidity and a reduced granulometry.
  • the first front cushion (1 ), the second front cushion (2) and the third front cushion (3) have a substantially quadrangular shape.
  • the first front cushion (1 ) and the second front cushion (2) have two non-rounded corners in correspondence of the perimeter edge (BP) of the proprioceptive arch support and two rounded corners abutting with the third front cushion (3).
  • the third front cushion (3) has four rounded corners.
  • the rounded corners prevent the padding layer (1 14) from converging towards the corners and creating a depression in the center of the cushion.
  • the proprioceptive arch support (100) comprises a stiffening portion (9) that extends from said at least one front cushion (1 , 2, 3) to said at least rear cushion (6, 7).
  • the stiffening portion is substantially shaped as a "T” and abuts with said at least one front cushion (1 , 2, 3) on top, with said at least one central cushion (4, 5) laterally and with said at least one rear cushion (6, 7) on the bottom.
  • the stiffening portion (9) is made of polyester and has a thickness ranging from 0.01 mm to 0.2 mm and a value ranging from 1 6 to 139 grams per square meter.
  • the polyester used for the stiffening portion is distinguished by the MYLAR® trademark registered by Du Pont de Nemours.
  • the MYLAR® polyester is obtained from polyethylenterephtalate, which is formed by means of a condensation reaction between ethylene glycol and terephthalic acid.
  • the operating temperature is comprised between -60°C and 130°C.
  • MYLAR® is a material that guarantees an excellent electrical insulation, an excellent mechanical resistance and a good thermal resistance. It is therefore suitable for insulating transformers, coating cables and wires of motors, capacitors, membrane switches and, in general, electrical appliances.
  • polyester for the stiffening portion (9) prevents the stiffening portion (9) from breaking up in pieces, guaranteeing a suitable rigidity of the stiffening portion of the proprioceptive arch support (100) over time.
  • the separation portion (91 ) can be optionally made of polyester.
  • the proprioceptive arch support may frontally comprise a single cushion (1 , 2, 3) that extends from the internal edge to the external edge of the proprioceptive arch support.
  • the proprioceptive arch support may comprise a single rear cushion (6, 7) shaped as a "U".

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  • 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

A proprioceptive arch support (100) comprises: at least one front cushion (1, 2, 3), at least one rear cushion (6, 7), at least one central cushion (4, 5), at least one stiffening portion (9) and at least one calcaneal cushion (8) that is disposed on a rear portion (B) of the proprioceptive arch support and is intended to be disposed under a central area (SPC) of the rear surface (SP) of the user's foot.

Description

Description
Proprioceptive arch support with cushion for calcaneal spur prevention.
The present patent application relates to a proprioceptive arch support intended to help a user in keeping a correct position in order to prevent the onset of pathologies related with an incorrect position.
The stimulation of specific points in the foot sole permits to correct the position of a user wearing a proprioceptive arch support, reinforce his/her muscle tone and strengthen his/her ligaments.
As it is known, the foot comprises a heel that represents the rear end of the foot, toes that represent the front end of the foot and protrude from a metatarsus, and an arch disposed between the heel and the metatarsus.
As shown in Fig. 1 , the foot comprises a lower support surface (S) comprising:
- a front surface (SA) in correspondence of the toes and the metatarsus of the user's foot,
- a central surface (SC) in correspondence of the arch of the user's foot, and
- a rear surface (SP) in correspondence of the heel of the user's foot.
The rear surface (SP) comprises:
- a rear peripheral area (SPP) in correspondence of a rear perimeter portion of the heel intended to be the first one to come in contact with the ground during walking,
- a central area (SPC) in correspondence of a central portion of the heel of the user's foot, which is intended to come in contact with the ground during walking after the rear peripheral area (SPP) and is intended to support the user's weight while standing, and - a front peripheral area (SPA) in correspondence of a front peripheral portion of the heel of the user's foot intended to come in contact with the ground during walking after the central area (SPC).
The lower support surface (S) comprises a perimeter edge (BP) comprising an internal edge (Bl) faced towards the other foot of the user and an external edge (BE) faced outwards.
Fig. 2 shows a proprioceptive arch support (200) of the prior art comprising a plurality of cushions in order to cushion and stimulate the lower support surface (S) of the user's foot. In particular, the proprioceptive arch support (200) comprises:
- a first front cushion (201 ), a second front cushion (202) and a third front cushion (203) with a rectangular shape that are intended to be disposed under the front surface (SA) of the foot,
- a first central cushion (204) intended to be disposed under the central surface (SC) in correspondence of the external edge (BE) of the foot and a second central cushion (205) intended to be disposed under the central surface (SC) in correspondence of the internal edge (Bl) and under the front peripheral area (SPA) of the rear surface (SP) of the foot, and
- a first rear cushion (206) and a second rear cushion (207) intended to be disposed under the rear peripheral area (SPP) of the user's foot.
The proprioceptive arch support (200) has a padding (214) in correspondence of the cushions (201 , 202, 203, 204, 205, 206, 207) that is made with pieces of natural rubber.
During the use of the proprioceptive arch support (200), the padding (214) tends to be disposed on the corners of the first front cushion (201 ), of the second front cushion (202) and of the third front cushion (203) because of the rectangular shape of the first front cushion (201 ), of the second front cushion (202) and of the third front cushion (203). Moreover, the padding made with pieces of natural rubber is hard and uncomfortable for the user.
Moreover, the proprioceptive arch support (200) according to the prior art comprises a stiffening portion (209) made of cardboard or the like in order to stiffen the proprioceptive arch support and prevent the arch support from moving and/or contracting because of the movement of the foot during walking.
The stiffening portion (209) is intended to be disposed under the central surface (SC), under the central area (SPC) and partially under the front peripheral area (SPA) of the lower support surface (S).
As shown in Fig. 3, the stiffening portion (209) is substantially shaped as a T" and abuts with the front cushions (201 , 202, 203) on top, with the central cushions (204, 205) laterally and with the first rear cushion (206) on the bottom.
The purpose of the stiffening portion (209) is to stiffen the proprioceptive arch support and prevent said arch support from getting deformed by the force exerted by the foot on the proprioceptive arch support when the shoe with the arch support is worn, or during walking.
Being made of cardboard or the like, the stiffening portion intrinsically tends to deteriorate with use and heat, breaking up in small parts. In such a case, the stiffening portion (209) no longer stiffens the proprioceptive arch support.
Moreover, the proprioceptive arch support comprises a separation portion (291 ) shaped as a "U" that abuts with the first rear cushion (206) and with the second rear cushion (207) externally, with the second central cushion (205) internally and partially with the stiffening portion (291 ) on top. The separation portion (291 ) is disposed under the central area (SPC) of the rear surface (SP) of the user's foot.
Said central area (SPC) of the rear surface (SP) supports the weight of the user when standing and during walking, when the user's weight is moved from the rear peripheral area (SPP) of the rear surface (SP) of the foot to the front peripheral area (SPA) of the rear surface (SP) of the user's foot.
The separation portion (291 ) does not comprise a covering of the type used for cushions and has a lower thickness than the cushions. Therefore the separation portion (291 ) is not in contact with the central area (SPC) of the rear surface (SP) of the user's foot. Consequently, the separation portion (291 ) does not provide any support to the central area (SPC) of the rear surface (SP) of the user's foot. A careful examination of a similar arch support has shown that its structural configuration can cause pathologies related with the calcaneal spur in the foot of a user of said proprioceptive arch support.
The main purpose of the present innovation is to eliminate the drawbacks of the prior art by disclosing a proprioceptive arch support that improves the support of the user's foot and prevents the onset of the calcaneal spur pathology.
A secondary purpose is to disclose a proprioceptive arch support that is not deformed with use.
Another purpose of the present innovation is to disclose a proprioceptive arch support that is inexpensive, easy to use, comfortable and lasting.
These purposes are achieved according to the present innovation with the characteristics of the independent claim 1 .
Advantageous embodiments will appear from the dependent claims.
The proprioceptive arch support of the innovation is intended to be disposed under a lower support surface of the user's foot. The lower support surface comprises a front surface in correspondence of toes and of a metatarsus of the user's foot, a central surface in correspondence of the arch of the user's foot and a rear surface in correspondence of a heel of the user's foot.
The rear surface comprises: - a rear peripheral area in correspondence of a rear perimeter portion of the heel of the user's foot, which is intended to be the first one to come in contact with the ground during walking,
- a central area (SPC) in correspondence of a central portion of the heel of the user's foot, which is intended to come in contact with the ground during walking after the rear peripheral area and is intended to support the user's weight while standing, and
- a front peripheral area in correspondence of a front peripheral portion of the heel of the user's foot, which is intended to come in contact with the ground during walking after the central area.
The proprioceptive arch support of the innovation has a longitudinal axis and comprises a front portion intended to be disposed under the front surface of the user's foot, a rear portion intended to be disposed under the rear surface of the user's foot and a central portion disposed between the front portion and the rear portion.
The proprioceptive arch support comprises:
- at least one front cushion that is disposed on the front portion of the proprioceptive arch support,
- at least one rear cushion that is disposed on the rear portion of the proprioceptive arch support and is intended to be disposed under the rear peripheral area of the user's foot,
- at least one central cushion that is disposed on the central portion and on the rear portion of the proprioceptive arch support and is intended to be disposed under the central portion and under the front peripheral area of the rear surface of the user's foot, and
- at least one stiffening portion that extends from said at least one front cushion to said at least one rear cushion.
The peculiarity of the proprioceptive arch support consists in the fact that it comprises at least one calcaneal cushion that is disposed on the rear portion of the proprioceptive arch support and is intended to be disposed under the central area of the rear surface of the user's foot, The provision of a calcaneal cushion intended to be disposed under the central area of the rear surface of the user's foot prevents the onset of pathologies related with the calcaneal spur.
Additional features of the innovation will appear evident from the following description, which refers to merely a illustrative, not limiting embodiment, illustrated in the attached figures, wherein:
Fig. 1 is a bottom view of a user's foot;
Fig. 2 is a top view of a proprioceptive arch support according to the prior art, which is cut in correspondence of the third front cushion;
Fig. 3 is a top view of a proprioceptive arch support of Fig. 2 without cushions and with a stiffening portion.
Fig. 4 is a top view of the proprioceptive arch support according to the innovation;
Fig. 5 is a sectional view of the arch support of Fig. 4 along plane V-V.
In the following description the parts that are identical or correspond to the parts described above are identified with the same numerals, omitting their detailed description.
With reference to Fig. 4, a proprioceptive arch support according to the innovation is disclosed, which is intended to be disposed under a lower support surface (S) of a user's foot and is generally indicated with referral number (100).
The proprioceptive arch support (100) has a longitudinal axis (X-X) and comprises a front portion (A) intended to be disposed under the front surface (SA) of the user's foot, a rear portion (B) intended to be disposed under the rear surface (SP) of the user's foot and a central portion (C) disposed between the front portion (A) and the rear portion (B) of the proprioceptive arch support.
The proprioceptive arch support (100) comprises at least one front cushion (1 , 2, 3) disposed on the front portion (A) of said proprioceptive arch support (100) and provided with a substantially quadrangular shape with at least two rounded corners. In particular, as shown in Fig. 4, the proprioceptive arch support (100) comprises a first front cushion (1 ) intended to be disposed in correspondence of the internal edge (Bl) of the lower support surface (S) of the foot, a second front cushion (2) intended to be disposed in correspondence of the external edge (BE) of the lower support surface (S) of the foot and a third front cushion (3) disposed between the first front cushion (1 ) and the second front cushion (2).
The proprioceptive arch support (100) comprises at least one rear cushion (6, 7) disposed on the rear portion (B) of said proprioceptive arch support (100) and intended to be disposed under the rear peripheral area (SPP) of the user's foot.
In particular, as shown in Fig. 4, the proprioceptive arch support (100) comprises a first rear cushion (6) intended to be disposed in correspondence of the external edge (BE) of the lower support surface (S) of the foot and a second rear cushion (7) intended to be disposed in correspondence of the internal edge (Bl) of the lower support surface (S) of the foot.
The proprioceptive arch support (100) comprises at least one central cushion (4, 5) disposed on the central portion (C) and on the rear portion (B) of the proprioceptive arch support and intended to be disposed under the central surface (SC) and under the front peripheral area (SPA) of the rear surface (SP) of the user's foot.
In particular, as shown in Fig. 4, the proprioceptive arch support (100) comprises a first central cushion (4) that is substantially shaped as a semicircle and is disposed on the central portion (C) of the proprioceptive arch support. The first central cushion (4) is intended to be disposed under the central surface (SC) in correspondence of the external edge (BE) of the lower support surface (S).
Moreover, the proprioceptive arch support (100) comprises a second central cushion (5) that is shaped as a ring portion and is disposed on the central portion (C) and on the rear portion (B) of the proprioceptive arch support. The second central cushion (5) is intended to be disposed under the central surface (SC) in correspondence of the internal edge (Bl) of the lower support surface (S) and extends until the center of the front peripheral area (SPA) of the rear surface (SP).
The proprioceptive arch support (100) comprises a separation portion (91 ) shaped as a portion of a ring to separate said at least one rear cushion (6, 7) from said at least one central cushion (4, 5). The separation portion (91 ) is disposed on the rear portion (B) of the proprioceptive arch support and is disposed between the second rear cushion (7) and the second central cushion (5).
Moreover, the proprioceptive arch support (100) comprises a calcaneal cushion (8) disposed on the rear portion (B) of the proprioceptive arch support and intended to be disposed under the central area (SPC) of the rear surface (SP) of the user's foot.
The calcaneal cushion (8) is shaped as an ellipsis with a major axis parallel to the longitudinal axis (X-X) of the proprioceptive arch support (100). Because of said shape, the calcaneal cushion (8) correctly supports and cushions the user's heel during walking, when the user's weight is moved from the rear peripheral area (SPP) of the rear surface (SP) towards the front peripheral area (SPA) of the rear surface (SP) of the foot.
The calcaneal cushion (8) comprises a rear perimeter portion (81 ) abutting with said at least one rear cushion (6, 7) and a front perimeter portion (82) abutting with said at least one central cushion (5, 91 ) and partially with the separation portion (91 ).
Because of the calcaneal cushion (8) intended to be disposed under the central area (SPC) of the rear surface (SP) of the user's foot, the proprioceptive arch support (100) prevents the onset of pathologies related with the calcaneal spur.
As shown in Fig. 5, the proprioceptive arch support (100) comprises a lower layer (1 1 1 ) intended to come in contact with a sole of a shoe, an upper layer (1 13) intended to come in contact with the lower support surface (S) of the user's foot and an intermediate layer (1 12) disposed between the upper layer (1 13) and the lower layer (1 1 1 ).
The lower layer (1 1 1 ) is made of natural rubber, the upper layer (1 13) is made of microfiber and the intermediate layer (1 12) is made of cotton. Preferably, the intermediate layer (1 12) and the upper layer (1 13) are glued together in order to form a single body.
As shown in Fig. 5, the proprioceptive arch support (100) also comprises a soft padding layer (1 14) made of vulcanized rubber in correspondence of the cushions. The padding layer (1 14) has a rigidity of 48/52 shore A and a granulometry comprised between 0.8 mm and 2.5 mm. The padding layer is soft and comfortable for the user, being made of vulcanized rubber with a low rigidity and a reduced granulometry.
The first front cushion (1 ), the second front cushion (2) and the third front cushion (3) have a substantially quadrangular shape. The first front cushion (1 ) and the second front cushion (2) have two non-rounded corners in correspondence of the perimeter edge (BP) of the proprioceptive arch support and two rounded corners abutting with the third front cushion (3).
The third front cushion (3) has four rounded corners. The rounded corners prevent the padding layer (1 14) from converging towards the corners and creating a depression in the center of the cushion.
As shown in Fig. 4, the proprioceptive arch support (100) comprises a stiffening portion (9) that extends from said at least one front cushion (1 , 2, 3) to said at least rear cushion (6, 7). In particular, the stiffening portion is substantially shaped as a "T" and abuts with said at least one front cushion (1 , 2, 3) on top, with said at least one central cushion (4, 5) laterally and with said at least one rear cushion (6, 7) on the bottom.
The stiffening portion (9) is made of polyester and has a thickness ranging from 0.01 mm to 0.2 mm and a value ranging from 1 6 to 139 grams per square meter. In particular, the polyester used for the stiffening portion is distinguished by the MYLAR® trademark registered by Du Pont de Nemours. The MYLAR® polyester is obtained from polyethylenterephtalate, which is formed by means of a condensation reaction between ethylene glycol and terephthalic acid. The operating temperature is comprised between -60°C and 130°C. MYLAR® is a material that guarantees an excellent electrical insulation, an excellent mechanical resistance and a good thermal resistance. It is therefore suitable for insulating transformers, coating cables and wires of motors, capacitors, membrane switches and, in general, electrical appliances.
The use of polyester for the stiffening portion (9) prevents the stiffening portion (9) from breaking up in pieces, guaranteeing a suitable rigidity of the stiffening portion of the proprioceptive arch support (100) over time.
Although not shown in the figures, also the separation portion (91 ) can be optionally made of polyester.
Although not shown in the figures, the proprioceptive arch support may frontally comprise a single cushion (1 , 2, 3) that extends from the internal edge to the external edge of the proprioceptive arch support.
Optionally, the proprioceptive arch support may comprise a single rear cushion (6, 7) shaped as a "U".
Numerous variations and modifications can be made to the present embodiment of the innovation, which are within the reach of an expert of the field, falling in any case within the scope of the innovation as disclosed by the attached claims.

Claims

Claims
1 ) Proprioceptive arch support (100) intended to be disposed under a lower support surface (S) of a user's foot; said lower support surface (S) comprising a front surface (SA) in correspondence of toes and of a metatarsus of the user's foot, a central surface (SC) in correspondence of an arch of the user's foot and a rear surface (SP) in correspondence of a heel of the user's foot; said rear surface (SP) comprising a rear peripheral area (SPP) in correspondence of a rear perimeter portion of the heel of the user's foot intended to be the first one to come in contact with the ground during walking, a central area (SPC) in correspondence of a central portion of the heel of the user's foot that is intended to come in contact with the ground during walking after the rear peripheral area (SPP) and is intended to support the user's weight when standing and a front peripheral area (SPA) in correspondence of a front perimeter portion of the heel of the user's foot intended to come in contact with the ground during walking after the central area (SPC); said proprioceptive arch support (100) having a longitudinal axis (X-X) and comprising a front portion (A) intended to be disposed under the front surface (SA) of the user's foot, a rear portion (B) intended to be disposed under the rear surface (SP) of the user's foot and a central portion (C) disposed between the front portion (A) and the rear portion (B); said proprioceptive arch support (100) comprising:
- at least one front cushion (1 , 2, 3) disposed on the front portion (A) of said proprioceptive arch support (100),
- at least one rear cushion (6, 7) disposed on the rear portion (B) of said proprioceptive arch support (100) and intended to be disposed under the rear peripheral area (SPP) of the user's foot,
- at least one central cushion (4, 5) disposed on the central portion (C) and on the rear portion (B) of the proprioceptive arch support and intended to be disposed under the central surface (SC) and under the front peripheral area (SPA) of the rear surface (SP) of the user's foot, and - at least one stiffening portion (9) extending from said at least one front cushion (1 , 2, 3) to said at least one rear cushion (6, 7),
said proprioceptive arch support (100) being characterized in that it comprises at least one calcaneal cushion (8) that is disposed on the rear portion (B) of the proprioceptive arch support and is intended to be disposed under the central area (SPC) of the rear surface (SP) of the user's foot.
2) The proprioceptive arch support (100) of claim 1 , wherein said calcaneal cushion (8) is shaped as an ellipsis with a major axis parallel to the longitudinal axis (X-X) of the proprioceptive arch support (100).
3) The proprioceptive arch support (100) of claim 1 or 2, wherein the calcaneal cushion (8) comprises a rear perimeter portion (81 ) abutting with said at least one rear cushion (6, 7) and a front perimeter portion (82) abutting with said at least one central cushion (4, 5).
4) The proprioceptive arch support (100) of claim 3, comprising a separation portion (91 ) to separate said at least one rear cushion (6, 7) from said at least one central cushion (4, 5); said front perimeter portion (82) of the calcaneal cushion (8) partially abutting with said separation portion (91 ).
5) The proprioceptive arch support (100) of any one of the preceding claims, wherein the stiffening portion (9) is made of polyester.
6) The proprioceptive arch support (100) of claim 5, wherein the stiffening portion (105) has a thickness that ranges from 0.01 mm to 0.2 mm and a value ranging from 1 6 to 139 grams per square meter.
7) The proprioceptive arch support (100) of claim 5 or 6, wherein the polyester used for the stiffening portion is distinguished by the MYLAR® trademark.
8) The proprioceptive arch support (100) of any one of the preceding claims, wherein said at least one front cushion (1 , 2, 3) has a substantially quadrangular shape with at least two rounded corners.
9) The proprioceptive arch support (100) of any one of the preceding claims, comprising a soft padding layer (104) made of vulcanized rubber in correspondence of said at least one front cushion (1 , 2, 3), of said at least one central cushion (4, 5), of said at least one rear cushion (6, 7) and of said calcaneal cushion (8).
10) The proprioceptive arch support (100) of claim 9, wherein the padding layer (104) has a rigidity of 48/52 shore A and a granulometry ranging from 0.8 mm to 2.5 mm.
1 1 ) The proprioceptive arch support (100) of any one of the preceding claims, comprising a lower layer (1 1 1 ) intended to come in contact with a sole of a shoe, an upper layer (1 13) intended to come in contact with the lower support surface (S) of the user's foot and an intermediate layer (1 12) disposed between said upper layer (1 13) and said lower layer (1 1 1 ).
12) The proprioceptive arch support (100) of claim 1 1 , wherein the lower layer (1 1 1 ) is made of natural rubber, the upper layer (1 13) is made of microfiber and the intermediate layer (1 12) is made of cotton.
PCT/EP2016/071584 2015-09-14 2016-09-13 Proprioceptive arch support with cushion for calcaneal spur prevention WO2017046098A1 (en)

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ITUB20158595 2015-09-14
IT202015000051377 2015-09-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084695A (en) * 1961-08-01 1963-04-09 O'donnell Charles Edward Method of making arch supporting cushion innersole
US20070033834A1 (en) * 2005-08-12 2007-02-15 Cheskin Melvyn P Shoe insole
EP2347667A2 (en) * 2010-01-22 2011-07-27 Hsien-Hsiung Cheng Multi-function shoe pad
WO2014036176A1 (en) * 2012-08-31 2014-03-06 Spenco Medical Corporation Basketball insole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084695A (en) * 1961-08-01 1963-04-09 O'donnell Charles Edward Method of making arch supporting cushion innersole
US20070033834A1 (en) * 2005-08-12 2007-02-15 Cheskin Melvyn P Shoe insole
EP2347667A2 (en) * 2010-01-22 2011-07-27 Hsien-Hsiung Cheng Multi-function shoe pad
WO2014036176A1 (en) * 2012-08-31 2014-03-06 Spenco Medical Corporation Basketball insole

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