Method of fabricating graphite for use as a skeletal prosthesis and product thereof

Eatherly, Walter P; Robbins, J M

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
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B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
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C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
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C08 - organic macromolecular compounds
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C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
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C14 - skins
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C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
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D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
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F28 - heat exchange in general
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G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
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H - electricity
H01 - basic electric elements
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Y04 - information or communication technologies having an impact on other technology areas
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Title: Method of fabricating graphite for use as a skeletal prosthesis and product thereof

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Abstract

A method for producing porous graphite for use as bone replacement with a structure for osteon penetration. Graphite is produced with ordered circular pores of 100 to 1000 microns in diameter covering at least 25% of the exposed surfaces. A cylindrical fiber is coated with a carbon flour-pitch mix and is then wound on a bobbin in a predetermined manner. The product of winding is dried, pressed, carbonized, and then graphitized. The fibers are removed either chemically or by volatilization during carbonization or graphitization.

Inventors:

Eatherly, Walter P ^[1]; Robbins, J M ^[1]; Rosson, Sr., David E. ^[2]

Oak Ridge, TN
(Oak Ridge, TN)

Issue Date:: 1978-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 863000

Patent Number(s):: 4070514

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL

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A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61F - FILTERS IMPLANTABLE INTO BLOOD VESSELS
A61F2/28 - Bones
A61F2002/30225 - {Flat cylinders, i.e. discs}
A61F2002/30785 - {parallel}
A61F2230/0069 - cylindrical
A61F2310/00173 - Graphite

A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
A61L27/08 - Carbon {

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J35/04 - Foraminous structures, sieves, grids, honeycombs
B01J37/0018 - {Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B32/384 - Granulation

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B2111/00836 - {for medical or dental applications}
C04B35/52 - based on carbon, e.g. graphite
C04B35/532 - containing a carbonisable binder
C04B38/0051 - {characterised by the pore size, pore shape or kind of porosity}
C04B38/007 - {characterised by the pore distribution, e.g. inhomogeneous distribution of pores}
C04B38/04 - by dissolving-out added substances
C04B38/063 - {Preparing or treating the raw materials individually or as batches}
C04B38/065 - {characterised by physical aspects, e.g. shape, size or porosity}
C04B38/066 - {characterised by distribution, e.g. for obtaining inhomogeneous distribution of pores}
C04B38/067 - {Macromolecular compounds

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S623/923 - Bone

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T156/1003 - by separating laminae between spaced secured areas [e.g., honeycomb expanding]
Y10T428/21 - Circular sheet or circular blank
Y10T428/24273 - including aperture
Y10T428/30 - Self-sustaining carbon mass or layer with impregnant or other layer

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; fabricating; graphite; skeletal; prosthesis; product; producing; porous; bone; replacement; structure; osteon; penetration; produced; circular; pores; 100; 1000; microns; diameter; covering; 25; exposed; surfaces; cylindrical; fiber; coated; carbon; flour-pitch; mix; wound; bobbin; predetermined; manner; winding; dried; pressed; carbonized; graphitized; fibers; removed; chemically; volatilization; carbonization; graphitization; exposed surface; porous graphite; exposed surfaces; producing porous; /428/156/264/623/

Citation Formats


                    Eatherly, Walter P, Robbins, J M, and Rosson, Sr., David E. Method of fabricating graphite for use as a skeletal prosthesis and product thereof.  United States: N. p., 1978. 
        Web.

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                    Eatherly, Walter P, Robbins, J M, & Rosson, Sr., David E. Method of fabricating graphite for use as a skeletal prosthesis and product thereof.  United States.

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                    Eatherly, Walter P, Robbins, J M, and Rosson, Sr., David E. Sun .  
        "Method of fabricating graphite for use as a skeletal prosthesis and product thereof".  United States.  https://www.osti.gov/servlets/purl/863000.

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@article{osti_863000,

  title        = {Method of fabricating graphite for use as a skeletal prosthesis and product thereof},

  author       = {Eatherly, Walter P and Robbins, J M and Rosson, Sr., David E.},

  abstractNote = {A method for producing porous graphite for use as bone replacement with a structure for osteon penetration. Graphite is produced with ordered circular pores of 100 to 1000 microns in diameter covering at least 25% of the exposed surfaces. A cylindrical fiber is coated with a carbon flour-pitch mix and is then wound on a bobbin in a predetermined manner. The product of winding is dried, pressed, carbonized, and then graphitized. The fibers are removed either chemically or by volatilization during carbonization or graphitization.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1978},

  month        = {1}

}

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