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Insole and foot orthotics made of shape memory material (SMM) three-dimensional spacer fabrics

a technology of shape memory material and insole, applied in the field of footwear, can solve the problems of inability to adjust to inability to adjust the shape of the insole, so as to achieve the effect of improving dampening/cushioning

Inactive Publication Date: 2013-11-07
ARTHREX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a shoe insole and foot orthotics made of three-dimensional spacer fabrics made of metallic shape memory materials. These materials are stronger than the polymer monofilaments used today and are not susceptible to deleterious creep. The new spacer fabric constructs can be customized to a specific foot geometry and offer improved dampening / cushioning, as well as superelastic shape recovery for long-lasting support. The patent describes a novel three-dimensional spacer fabric made of shape memory material (e.g., Nitinol) that has interconnecting filaments between two layers.

Problems solved by technology

While acceptable cushioning properties may be obtained initially, over time such elastomeric or foam material insoles are compressed during use, causing them to lose their shape.
Insoles made of elastomeric or foam materials have proven uncomfortable and ineffective to users over extended periods of use by failing to provide sufficient support and / or cushioning.
However, these polymer spacer fabrics are weak and can easily be crushed without elastic recovery.

Method used

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  • Insole and foot orthotics made of shape memory material (SMM) three-dimensional spacer fabrics
  • Insole and foot orthotics made of shape memory material (SMM) three-dimensional spacer fabrics
  • Insole and foot orthotics made of shape memory material (SMM) three-dimensional spacer fabrics

Examples

Experimental program
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Embodiment Construction

[0048]In accordance with the present invention, and looking now at FIG. 7, there is provided a new and improved three dimensional spacer fabric construct 50 made of a shape memory material (SMM) such as Nitinol. The shape memory material (SMM) spacer fabric construct 50 comprises a first layer 55, a second layer 60 and a plurality of interconnecting filaments 65 extending between the first and second layers 55,60. The superelastic vertical “fibers” (filaments) 65 create the elastic response in the insole and / or orthotic when compressed by the foot, made to bend, collapse and allowed to shape recover, which addresses the deficiencies of the prior art.

[0049]With shape memory metals such as Nitinol, pseudoelasticity, sometimes called superelasticity, is an elastic (reversible) response to an applied stress, caused by a phase transformation between the austenitic and martensitic phases of a crystal. Pseudoelasticity (superelasticity) is from the reversible motion of domain boundaries du...

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PUM

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Abstract

A shoe insole comprising:a spacer fabric comprising a bottom layer, a top layer, and a plurality of interconnecting filaments extending between said bottom layer and said top layer;wherein at least one of said bottom layer, said top layer and said plurality of interconnecting filaments comprise a shape memory material.

Description

REFERENCE TO PENDING PRIOR PATENT APPLICATIONS[0001]This patent application:[0002](i) is a continuation-in-part of pending prior U.S. patent application Ser. No. 13 / 843,656, filed Mar. 15, 2013 by Matthew Fonte et al. for DYNAMIC POROUS COATING FOR ORTHOPEDIC IMPLANT (Attorney's Docket No. FONTE-15171824), which patent application (a) is a continuation-in-part of prior U.S. patent application Ser. No. 13 / 764,188, filed Feb. 11, 2013 by Matthew Fonte et al. for POROUS COATING FOR ORTHOPEDIC IMPLANT UTILIZING POROUS, SHAPE MEMORY MATERIALS (Attorney's Docket No. FONTE-15), which patent application claims benefit of prior U.S. Provisional Patent Application Ser. No. 61 / 596,900, filed Feb. 09, 2012 by Matthew Fonte et al. for POROUS, SHAPE MEMORY MATERIAL, ORTHOPEDIC IMPLANT COATING (Attorney's Docket No. FONTE-15 PROV); (b) claims benefit of prior U.S. Provisional Patent Application Ser. No. 61 / 612,496, filed Mar. 19, 2012 by Matthew Fonte et al. for POROUS, SHAPE MEMORY MATERIAL, ORTH...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B7/32A43B23/02A43B13/38
CPCA43B7/32A43B13/386A43B23/0235A43B17/006A43B7/141A43B7/142A43B7/144A43B7/1445A43B7/28A43D1/022A43B1/028
Inventor FONTE, MATTHEWPALMER, MATTHEW
Owner ARTHREX
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