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ASTM Selected Technical Papers
Intramedullary Rods: Clinical Performance and Related Laboratory Testing
By
JP Harvey, Jr Jr
JP Harvey, Jr Jr
editor
1
USC School of Medicine
,
Los Angeles, CA 90003
:
symposium cochairman and coeditor
.
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AU Daniels
AU Daniels
editor
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RF Games
RF Games
editor
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ISBN-10:
0-8031-1181-9
ISBN:
978-0-8031-1181-3
No. of Pages:
202
Publisher:
ASTM International
Publication date:
1989

One open cylindrical tube made from shape memory alloy of 55% nickel and 45% titanium (NiTi) was tested. The activated total radial force was measured between rigid plates, when the tube was heated by hot water. Three NiTi tubes of 10-mm length were inserted into biomechanical equivalent aluminum tubes and heated in order to measure the deformation of the model tubes. Photoelastic tests were performed on three NiTi tube specimens, 2.5 mm in length, which had been inserted into biomechanical equivalent Araldite disks of 10-mm thickness. All tests were evaluated by combining the results with calculations on slender circular rings and were transmitted to natural bone tubes. The results show activated stresses between 15 and 30 N/mm2 in real bone and therefore no dangerous stress states.

1.
Baumgart
,
F.
,
Haasters
,
J.
, and
Bensmann
,
G.
, “
Memory Alloys—New Material for Implantation in Orthopedic Surgery
,” presented at the International Symposium on Internal Fixation of Fractures,
Ottawa, Canada
,
1979
.
2.
Bensmann
,
G.
,
Baumgart
,
F.
, and
Haasters
,
J.
, “
Properties of Memory Alloy NiTi and Consideration on Its Application for Implants
,” presented at the 8th Annual Meeting of the Society for Biomaterials,
Orlando, Florida
,
1982
.
3.
Biehl
,
G.
 et al
, “
Gestaltfestigkeitsuntersuchungen von Osteosynthese-Implantaten
,”
Verlag der βip-Schriften
,
Breitenbach
,
Saarbrücken, Federal Republic of Germany
,
1977
.
4.
Sadakane
,
T.
 et al
, “
Anatomische und Biomechanische Untersuchungen zur Femurmarknagelung
,”
Archives of Orthopaedic and Traumatic Surgery
, Vol.
91
,
1978
, pp. 31–37.
5.
Roark
,
R. J.
,
Formulas for Stress and Strain
, 4th ed.,
McGraw-Hill
,
New York
, 1965.
6.
Johnson
,
J. M.
, “
Thermomechanical Characteristics of Nitinol
,” Master's thesis,
Naval Postgraduate School
, Monterey, CA,
1975
.
7.
Park
,
J. B.
,
Biomaterials: An Introduction
,
Plenum Press
,
New York
,
1979
.
8.
Schlegel
,
K. F.
, “
Memory-Legierung—Ein Neues Implantatraaterial für die Orthopädische Chirurgie
,”
Orthopaedische Praxis
, Vol.
8
, No.
13
,
1977
.
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