Practice for Assessment of Compatibility of Metallic Materials for Surgical Implants With Respect to Effect of Materials on Tissue (Withdrawn 1987)

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ASTM F361-80 - Practice for Assessment of Compatibility of Metallic Materials for Surgical Implants With Respect to Effect of Materials on Tissue (Withdrawn 1987)
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Standards Content (Sample)

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= 9009276 0038302 bo5
ANSI/ASTM F 381 - 80
AMERICAN SOCILTV FOR TLSTINQ LN0 MATERIALS
1916 Rica St. Phliadolphii* Pi: 19103
Raprintd from tho Annual Book of ASTM Stmndudr, CopVrlght ASTM
If not Ilrtd In tho Curront cornbind lnôrx. WIN r~9wr In tho next dition.
Standard Practice for
ASSESSMENT OF COMPATIBILITY OF METALLIC
MATERIALS FOR SURGICAL IMPLANTS WITH RESPECT
TO EFFECT OF MATERIALS ON TISSUE'
This siandard ir issued under ihr fired designation F 361; ihc number immcáiaicly following ihc drsi4naiion indicaies ihr
year of oriEini1 adupiion or. in ihr C8K Of revuim the year of lui revision. A number in parentheses indicaies the year of last
reapprov1l.
1. scope
and Wire for Surgical Implants (Special
1.1 This practice provides a series of exper- Quality)'
2.2 Oih.er Documents:
imental protocols for biological assays of tissue
Guidejbr the Care und Use of Laborator)
reaction to metallic materials for surgical im-
Animals, Department of Health, Education
plants. It assesses the effects of the material on
and Welfare Publication No. 711-23 (197~~
animal tissue in which it is 'implanted. The
experimental protocol is not designed to pro-
3. Summary of Practice
vide a comprehensive assessment of the sys-
3.1 This practice describes the preparation
temic toxicity, carcinogenicity, teratogenicity,
of implants, the number of implants and test
or mutagenicity of the material. It applies only
hosts, test sites, exposure schedule, implant ster-
to materials with projected applications in hu-
ilization techniques, and methods of implant
man subjects where the materials will reside in
retrieval and tissue examination of each test
skeletal or sol\ tissue for time ;tcriocîs in excess
site.
30 days and will remain functional. Cardio-
of
vascular applications and applications in other
4. Significance
organ systems or tissues for which these proto-
4.1 This is a test protocol for comparing the
cols may be inappropriate are excluded. Con-
local tissue response evoked by metallic mate-
trol materials will consist of-any one of the
from which surgical devices might ulti-
rials,
metal alloys in Specifications F 67. F 75, F 90,
mately bt. fabricated, with the local tissue re-
or F 138.
sponse clkitcd by control materiais currently
2. Applicable Documents
accepted r!r the fabrication of surgical devices.
Currently' accepted materials are the metais
2. I ASTM Standards:
(and metal alloys, see Section 2) which were
F 67 Specification for Unalloyed Titanium
standardized on the basis of acceptable long-
for Surgical Implant Applications'
term clinical experience. These metal controls
F 75 Specification for Cast Cobalt-Chro-
consistently producc cellular reaction and scar
mium-Molybdenum Alloy for Surgical
Implant Applications'
F 86 Recommended Practice for Surface
Preparation and Marking,of Metallic Sur-
gicai Implants'
F 90 Specification for Wrought Cobalt-
Chromium-Tungrten-Nickel Alloy for
Surgid Implant Applidons*
F 138 Specification for Stknlcss Steel Ban
k-9

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F 361
to u degree that has ken found to,be acceptable
ical cons!raints, such should be rcprted in
to thc host. This practice provides methods for
accordance with 8.1.
assaying candidate metallic matefials based on
6.4 Numbers of Test and Control Implants:
a comparison with the tissue reaction produced
6.4.1 In each rat there shall be two implants.
by the current standard metals.
one on each side of the spine. Animals shall be
alternately designated to receive test or refer-
5. Test liosts nnd Sites
ence material implants.
5.1 Rats (strains in which the. incidence of 6.4.2 In each rabbit, there shall be two im-
tumors are low), New Zealand rabbits, and
plants in the muscle on each side of the spine
dogs shall be used as test hosts for soft tissue or in each femur. Animals shall receive test or
implants. Rabbits and dogs shall be used as test reference material implants.
6.4.3 In each dog. there shall be six implants
hosts for bone implants.
5.2 The sacro-spinalis muscle .pr femur can on each side of the spine or in each femur.
serve as the test site for implants. However, the Animals shall receive test or reference material
implants.
same site must be used for all the implants in
all the animal species. 6.5 Conciif ioning:
5.3 Twenty rats. I2 rabbits, and 8 dogs shall 6.5.1 Remove all surface contaminants with
be used for studies utilizing intramuscular im- appropriate solvents and rinse all test and con-
plants. Twelve rabbits and 8 dogs shall be used trol implants in distilled water prior to sterili-
for bone implants. zat ion.
5.4 A suggested schedule for the sacrifice of 6.5.2 Package and sterilize all implants in
animals is given in Table 1. the same way as is used for human implanta-
tion.
6. Iniplnnt Specimens
6.5.3 After final preparation and steriliza-
tion, handle the test and control impla
...

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