Method for the Continuous Implementation of Polymerisation Processes

Active Publication Date: 2008-08-07
LIST TECHNOLOGY AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004]In order to allow the amputee athlete to attain a higher level of performance, there is a need for a high performance prosthetic foot having improved applied mechanics, which foot can out perform the human foot and also out perform the prior art prosthetic feet. It is of inter

Problems solved by technology

However, the dynamic response characteristic

Method used

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  • Method for the Continuous Implementation of Polymerisation Processes
  • Method for the Continuous Implementation of Polymerisation Processes
  • Method for the Continuous Implementation of Polymerisation Processes

Examples

Experimental program
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Effect test

Embodiment Construction

[0063]Referring now to the drawings, a prosthetic foot 1 in the example embodiment of FIGS. 3-5 is seen to comprise a longitudinally extending foot keel 2 having a forefoot portion 3 at one end, a hindfoot portion 4 at an opposite end and an upwardly arched midfoot portion 5 extending between the forefoot and hindfoot portions. The midfoot portion 5 is upward convexly curved over its entire longitudinal extent between the forefoot and hindfoot portions in the example embodiment.

[0064]An upstanding calf shank 6 of the foot 1 is attached at a portion of a downward convexly curved lower end 7 thereof to a proximate, posterior surface of the keel midfoot portion 5 by way of a releasable fastener 8 and coupling element 11. The fastener 8 is a single bolt with nut and washers in the example embodiment, but could be a releasable clamp or other fastener for securely positioning and retaining the calf shank on the foot keel when the fastener is tightened.

[0065]A longitudinally extending open...

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Abstract

A prosthetic foot (124) incorporates a foot keel (165) and a calf shank (126) connected to the foot keel to form an ankle joint area of the prosthetic foot. A device (125) connected between the upper end of the calf shank and the lower portion of the prosthesis can be used to assist posterior movement of the upper end of a calf shank and control anterior movement of the upper end of the calf shank during use of the prosthesis. The device (125) has springs which store energy during force loading with anterior motion of the upper end of the calf shank in gait and which, during force unloading, return the stored energy as kinetic power for adding to the propulsive force on the user's body generated by the prosthesis in gait.

Description

TECHNICAL FIELD[0001]The present invention relates to a high performance prosthetic foot providing improved dynamic response capabilities as these capabilities relate to applied force mechanics.BACKGROUND ART[0002]A jointless artificial foot for a leg prosthesis is disclosed by Martin et al. in U.S. Pat. No. 5,897,594. Unlike earlier solutions wherein the artificial foot has a rigid construction provided with a joint in order to imitate the function of the ankle, the jointless artificial foot of Martin et al. employs a resilient foot insert which is arranged inside a foot molding. The insert is of approximately C-shaped design in longitudinal section, with the opening to the rear, and takes up the prosthesis load with its upper C-limb and via its lower C-limb transmits that load to a leaf spring connected thereto. The leaf spring as seen from the underside is of convex design and extends approximately parallel to the sole region, forward beyond the foot insert into the foot-tip regi...

Claims

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Application Information

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IPC IPC(8): A61F2/66A61F2/00A61F2/50A61F2/60A61F2/76
CPCB01F5/104C08F2/02B01F13/1027B01F15/0289B01J8/10B01J19/0066B01J2219/00033B01J2219/0004B01J2219/00108B01J2219/00128B01J2219/00168B01J2219/0025B01J2219/00272B01J2219/182B01F7/048B01F25/52B01F27/707B01F33/821B01F35/754551
Inventor FLEURY, PIERRE-ALAINISENSCHMID, THOMASLIECHTI, PIERRE
Owner LIST TECHNOLOGY AG
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