Air cushion action at the distal end of above-knee stump with a prosthetic socket

Ming Zhang; Arthur F T Mak; Johnnes Mak

Air cushion action at the distal end of above-knee stump with a prosthetic socket

Ming Zhang, Arthur F T Mak, Johnnes Mak

Research output: Journal article publication › Conference article › Academic research › peer-review

Abstract

The air cushion action over the distal end of residual limb with a prosthetic socket was investigated by experimental measurements of the air pressure during standing and walking and by computational simulation based on finite element methods. The air pressure at the distal-end cavity during walking was found to be in the range of -20 kPa to 17 kPa. The statistical peak pressure was -16.9±2.2 kPa during swing phase and 14.3±2.5 kPa during stance phase. Finite element models have been established to investigate the load transfer between an above-knee stump and the prosthetic socket. An air cavity was assumed to be sealed between the distal end of the stump and the socket. Hydrostatic fluid elements were used to simulate this air cavity. The air pressure predicted for standing is 9 kPa and supports about 12 percent of the total vertical load.

Original language	English
Pages (from-to)	2754-2756
Number of pages	3
Journal	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume	5
Publication status	Published - 1 Dec 1998
Event	Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, Hong Kong Duration: 29 Oct 1998 → 1 Nov 1998

ASJC Scopus subject areas

Bioengineering

Cite this

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title = "Air cushion action at the distal end of above-knee stump with a prosthetic socket",

abstract = "The air cushion action over the distal end of residual limb with a prosthetic socket was investigated by experimental measurements of the air pressure during standing and walking and by computational simulation based on finite element methods. The air pressure at the distal-end cavity during walking was found to be in the range of -20 kPa to 17 kPa. The statistical peak pressure was -16.9±2.2 kPa during swing phase and 14.3±2.5 kPa during stance phase. Finite element models have been established to investigate the load transfer between an above-knee stump and the prosthetic socket. An air cavity was assumed to be sealed between the distal end of the stump and the socket. Hydrostatic fluid elements were used to simulate this air cavity. The air pressure predicted for standing is 9 kPa and supports about 12 percent of the total vertical load.",

author = "Ming Zhang and Mak, {Arthur F T} and Johnnes Mak",

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journal = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

issn = "0589-1019",

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note = "Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) ; Conference date: 29-10-1998 Through 01-11-1998",

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TY - JOUR

T1 - Air cushion action at the distal end of above-knee stump with a prosthetic socket

AU - Zhang, Ming

AU - Mak, Arthur F T

AU - Mak, Johnnes

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The air cushion action over the distal end of residual limb with a prosthetic socket was investigated by experimental measurements of the air pressure during standing and walking and by computational simulation based on finite element methods. The air pressure at the distal-end cavity during walking was found to be in the range of -20 kPa to 17 kPa. The statistical peak pressure was -16.9±2.2 kPa during swing phase and 14.3±2.5 kPa during stance phase. Finite element models have been established to investigate the load transfer between an above-knee stump and the prosthetic socket. An air cavity was assumed to be sealed between the distal end of the stump and the socket. Hydrostatic fluid elements were used to simulate this air cavity. The air pressure predicted for standing is 9 kPa and supports about 12 percent of the total vertical load.

AB - The air cushion action over the distal end of residual limb with a prosthetic socket was investigated by experimental measurements of the air pressure during standing and walking and by computational simulation based on finite element methods. The air pressure at the distal-end cavity during walking was found to be in the range of -20 kPa to 17 kPa. The statistical peak pressure was -16.9±2.2 kPa during swing phase and 14.3±2.5 kPa during stance phase. Finite element models have been established to investigate the load transfer between an above-knee stump and the prosthetic socket. An air cavity was assumed to be sealed between the distal end of the stump and the socket. Hydrostatic fluid elements were used to simulate this air cavity. The air pressure predicted for standing is 9 kPa and supports about 12 percent of the total vertical load.

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M3 - Conference article

SN - 0589-1019

VL - 5

SP - 2754

EP - 2756

JO - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

JF - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings

T2 - Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6)

Y2 - 29 October 1998 through 1 November 1998

ER -

Air cushion action at the distal end of above-knee stump with a prosthetic socket

Abstract

ASJC Scopus subject areas

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