Design of a Dynamic External Finger Fixator

May Youssef; Duncan Shepherd; G Titley

doi:10.1115/1.4033602

Design of a Dynamic External Finger Fixator

May Youssef, Duncan Shepherd, G Titley

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes an improved design of an external fixator. The new fixator comprises 13 parts which are assembled together. The proposed device materials consist of polyether ether-ketone (PEEK) and stainless steel 316L. The design was subjected to finite-element analysis, and a working model was manufactured and subjected to cyclic mechanical testing. The finite-element analysis showed that the maximum stress was 242.9 MPa and this was less than the yield strength and the fatigue endurance limits for the selected materials. Mechanical testing showed that testing reached run-out of 170,000 cycles with no cracks or damage visible in the device parts.

Original language	English
Journal	Journal of Medical Devices
Volume	10
Issue number	4
Early online date	5 Aug 2016
DOIs	https://doi.org/10.1115/1.4033602
Publication status	E-pub ahead of print - 5 Aug 2016

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title = "Design of a Dynamic External Finger Fixator",

abstract = "This paper describes an improved design of an external fixator. The new fixator comprises 13 parts which are assembled together. The proposed device materials consist of polyether ether-ketone (PEEK) and stainless steel 316L. The design was subjected to finite-element analysis, and a working model was manufactured and subjected to cyclic mechanical testing. The finite-element analysis showed that the maximum stress was 242.9 MPa and this was less than the yield strength and the fatigue endurance limits for the selected materials. Mechanical testing showed that testing reached run-out of 170,000 cycles with no cracks or damage visible in the device parts.",

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AB - This paper describes an improved design of an external fixator. The new fixator comprises 13 parts which are assembled together. The proposed device materials consist of polyether ether-ketone (PEEK) and stainless steel 316L. The design was subjected to finite-element analysis, and a working model was manufactured and subjected to cyclic mechanical testing. The finite-element analysis showed that the maximum stress was 242.9 MPa and this was less than the yield strength and the fatigue endurance limits for the selected materials. Mechanical testing showed that testing reached run-out of 170,000 cycles with no cracks or damage visible in the device parts.

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M3 - Article

SN - 1932-619X

VL - 10

JO - Journal of Medical Devices

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Design of a Dynamic External Finger Fixator

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