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Walking Device

a prosthetic device and walking technology, applied in the field of footwear, can solve the problems of rigid foot at heel strike, too rigid foot, and inflexible foo

Inactive Publication Date: 2013-08-29
MORENO COLLADO EDUARDO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is an active orthotic device that helps improve a person's natural foot function. It adjusts the height of the arch and the tilting of the hind foot based on the phase of the gait cycle. This results in a more flexible foot at heel strike and a more rigid foot at toe-off, which helps to better replicate natural foot function.

Problems solved by technology

Unfortunately, this static realignment does not mimic the natural function of the foot.
In such a fixed position, the foot is too rigid at heel strike and too flexible at toe-off.

Method used

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Experimental program
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Embodiment Construction

[0025]FIGS. 1-5 illustrate one embodiment of an Active Prosthetic Shoe Device (APSD) 10 in accordance with one aspect of the present invention. The illustrated embodiment is comprised of three primary active functions. The medial section of the APSD is comprised of a matrix of hydraulic chambers 13. The chambers are typically made of circular channels of a flexible and durable plastic (rubber bellows) that trap fluid and expand depending on the volume of the fluid content found inside. In the illustrated device 10, hydraulic chambers are located in the medial section of the device to actively modify the arch support of a shoe. Continuing with the illustrated embodiment, three hydraulic chambers are located at the heel to actively tilt the heel to the desired angle. In addition, a system is located in the frontal region 30 that makes the plantar side of the device harden at the point before push-off to create a rigid lever and assure an increased transfer of energy.

[0026]As shown, th...

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PUM

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Abstract

An orthotic device that includes an active mechanism to modify the curvature of the arch support and a mechanism to tilt the heel while performing varied activities is provided. The system functions by using both a plantar pressure sensor to measure the reaction forces felt on the device by the foot and determine the position in the walking cycle. A fluid sensor is typically used to determine the pressure in each hydraulic chamber to determine if the pressure in each chamber corresponds with the distribution pattern in the plantar pressure sensor. This device hardens the insole at the point before push-off to create a rigid lever that increases the user's transfer of energy to the ground.

Description

BACKGROUND OF THE INVENTION[0001]The present invention is in the technical field of footwear. More particularly, the present invention is in the technical field of active prosthetic device.[0002]Conventional in-shoe orthoses, (pedorthics) which combine an arch support and medial heel posting (a wedge on the inside of the heel) are commonly used to realign the flat foot into a more neutral position and thus improve gait mechanics. These pedorthics have been shown to improve gait mechanics by supporting the longitudinal arch while reducing plantar and medial soft tissue strain.[0003]Currently available orthotics improve gait biomechanics in flatfoot by passively raising the arch and tilting the hind foot back to neutral. Unfortunately, this static realignment does not mimic the natural function of the foot. In such a fixed position, the foot is too rigid at heel strike and too flexible at toe-off.SUMMARY OF THE INVENTION[0004]The present invention is an active orthotic device to aid a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B13/38
CPCA43B3/00A43B3/0015A43B7/142A43B13/386A43B7/1455A43B7/1465A43B7/144A43B7/28A43B7/1464A43B3/38
Inventor MORENO-COLLADO, EDUARDO
Owner MORENO COLLADO EDUARDO
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