Perforated Insole with Dynamic Support Layer

Abstract

An insole installed on top of existing footwear with a sealed chamber extending across the plantar surface of the foot filled with a fluid that can traverse across the chamber in response to pressure caused by a weight shift by the wearer. The movement of the fluid (which may be a liquid, gas, or gel) serves to massage the foot muscles and tendons, release toxins, and increase circulation. The chamber may also have restrictions or unique shapes to guide the fluid for maximum effectiveness.

What is claimed is: 
     
         1 . An insole for insertion into footwear between the plantar surface of the wearer's foot and the inner surface of a shoe, said insole comprising:
 (a) a base material having a peripheral edge defining a toe portion, a heel portion and an intermediate arch portion, said base material being fabricated from a flexible material having opposite first and second generally planar surfaces;   (b) a secondary material peripherally joined and sealed to said first surface and extending between the heel portion and intermediate arch portion to form an enclosed cavity between the base material and secondary material;   (c) wherein said cavity contains a fluid substance configured to traverse said cavity in response to changes in the distribution of pressure along the plantar surface of the wearer's foot; and   (d) a plurality of restrictions positioned within the cavity between the distal end of the arch portion and the proximal edge of the heel portion which restricts the movement of said fluid substance.   
     
     
         2 . The insole of  claim 1  wherein said base material further includes at least one series of perforations extending through the base material which form a curve inset from and generally conforming to the peripheral edge of said toe portion and with ends terminating at the medial and lateral peripheral edge of the intermediate arch portion. 
     
     
         3 . The insole of  claim 2  wherein said curve defined by the perforations extending through the base materials also comprises a series of secondary perforations which do not extend through the base material. 
     
     
         4 . The insole of  claim 3  wherein said base material further includes a generally elliptically shaped opening extending through the first and second surface with a diameter greater than 5 mm and corresponding to a position between the first and second phalanges of the wearer's foot. 
     
     
         5 . The insole of  claim 3  wherein said base material further includes a generally elliptical shaped opening with a diameter greater than 5 mm, extending between the first and second planar surface, and generally positioned in said toe portion corresponding between the first and second phalanges of the wearer's foot. 
     
     
         6 . The insole of  claim 3  wherein said base material further includes a third series of perforations that are configured in a generally elliptical shape with a diameter greater than 5 mm, extending between the first and second planar surface, and generally positioned in said toe portion corresponding between the first and second phalanges of the wearer's foot. 
     
     
         7 . The insole of  claim 2  wherein said perforations in said base material are die cut. 
     
     
         8 . The insole of  claim 1  wherein said fluid substance is air. 
     
     
         9 . The insole of  claim 1  wherein said fluid substance is a gel. 
     
     
         10 . An insole for insertion into footwear between the plantar surface of the wearer's foot and the inner surface of a shoe, said insole comprising: a base material which includes
 (a) a peripheral edge defining a toe portion, a heel portion and an intermediate arch portion,   (b) fabricated from a flexible material having opposite first and second generally planar surfaces; and   (c) a first series of perforations positioned along a curve which is inset from and generally conforming to the peripheral edge of said toe portion and with ends terminating at the medial and lateral peripheral edge of the intermediate arch portion;   
     
     
         11 . The insole of  claim 10  wherein a second series of perforations positioned along a curve is inset from and generally conforming to the first series of perforations opposite the peripheral edge of said toe portion and with ends terminating at the medial and lateral peripheral edge of the intermediate arch portion. 
     
     
         12 . The insole of  claim 11  wherein said first and second perforations each comprise of a polarity of alternating first and second depths wherein the first depth passes through the first and second planar surfaces of the base material and the second depth passes from the first planar surface to a point within the base material between the first planar surface and the second planar surface. 
     
     
         13 . The insole of  claim 12  wherein said perforations in said base material are die cut. 
     
     
         14 . The insole of  claim 13  wherein said base material further includes a third series of perforations that are configured in a generally elliptical shape with a diameter greater than 5 mm, extending between the first and second planar surface, and generally positioned in said toe portion corresponding between the first and second phalanges of the wearer's foot. 
     
     
         15 . An insole for insertion into footwear between the plantar surface of the wearer's foot and the inner surface of a shoe, said insole comprising:
 (a) a base material having a peripheral edge defining a toe portion, a heel portion and an intermediate arch portion, said base being fabricated from a flexible material having opposite first and second generally planar surfaces;   (b) a secondary material peripherally joined and sealed to said first surface and extending between the heel portion and intermediate arch portion to form an enclosed cavity between the base material and secondary material;   (c) wherein said cavity contains a fluid substance configured to traverse said cavity in response to changes in the distribution of pressure along the plantar surface of the wearer's foot; and   (d) wherein said base material further includes a series of perforations that are configured in a generally elliptical shape with a diameter greater than 5 mm, extending between the first and second planar surface, and generally positioned in said toe portion corresponding between the first and second phalanges of the wearer's foot.   
     
     
         16 . The insole of  claim 15  wherein said perforations in said base material are die cut. 
     
     
         17 . The insole of  claim 16  wherein said fluid substance is a gas. 
     
     
         18 . The insole of  claim 16  wherein said fluid substance is a liquid. 
     
     
         19 . The insole of  claim 16  wherein said fluid substance is a gel.