Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1991-08-06
1993-03-09
Isabella, David J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
623 18, A61F 232
Patent
active
051923300
ABSTRACT:
Orthopedic device of biocompatible polymer with oriented fiber reinforcement. There is provided a device such as a hip stem which has a longitudinally curved body. The reinforcing fibers are continuous filament fiber plies with parallel orienated fibers in each ply. The plies are curved longitudinally to approximately correspond to the curve of the body. In one embodiment, there are longitudinally oriented fiber plies at or near the surfaces of the device and plies with fibers offset at 5.degree.-40.degree. from the longitudinal axis between the surface layers. The fiber orientation is balanced by providing a ply of negatively angled offset fibers of a similar angle for each positively angled offset ply. The device is made by molding plies preimpregnated with polymer (prepregs) simultaneously, by molding a plurality of prepregs into segments which are then molded together, or by molding a segment and incrementally molding additional layers of prepregs thereto in a series of progressively larger molds.
REFERENCES:
patent: 3660199 (1972-05-01), Riccitiello et al.
patent: 3707006 (1972-12-01), Bokros et al.
patent: 3893196 (1975-07-01), Hochman
patent: 3992725 (1976-11-01), Homsy
patent: 4065340 (1977-12-01), Dickerson
patent: 4164794 (1979-08-01), Spector et al.
patent: 4329743 (1982-05-01), Alexander et al.
patent: 4356571 (1982-11-01), Esper et al.
patent: 4459708 (1984-07-01), Buttazzoni
patent: 4534919 (1985-08-01), McAliley et al.
patent: 4535487 (1985-08-01), Esper et al.
patent: 4547910 (1985-10-01), Roberts et al.
patent: 4551390 (1985-11-01), Canning et al.
patent: 4604097 (1986-08-01), Graves, Jr. et al.
patent: 4610688 (1986-09-01), Silvestrini et al.
patent: 4654263 (1987-03-01), Cox
patent: 4657717 (1987-04-01), Cattanach et al.
patent: 4662887 (1987-05-01), Turner et al.
patent: 4683018 (1987-07-01), Sutcliffe et al.
patent: 4713426 (1987-12-01), Harris et al.
patent: 4714467 (1987-12-01), Lechner et al.
patent: 4714642 (1987-12-01), McAliley et al.
patent: 4750905 (1988-06-01), Koenemann
patent: 4863475 (1989-09-01), Andersen et al.
patent: 4892552 (1990-01-01), Ainsworth et al.
Gohl, Walter et al., "Carbonfiber-Reinforced, Composite-Material for Endoprosthetics," pp. 1-78 (Apr. 1982).
Bradley, J. S. et al., "Carbon Fibre Reinforced Epoxy as a High Strength, Low Modulus Material for External Fixation Plates," Biomaterials vol. 1, pp. 38-40 (1979).
Fitzer, E. et al., "Torsional Strength of Carbon Fiber Reinforced Composites for the Application as Internal Bone Plates," Carbon vol. 18, pp. 383-387 (1979).
McKenna, G. B. et al., "Mechanical Properties of Some Fibre Reinforced Polymer Composites After Implantation as Fracture Fixation Plates," Biomaterialsvol. 1, pp. 189-192 (1980).
McKenna, G. B. et al. "The Development of Composite Materials for Orthopedic Implant Devices," pp. 232-241 (Apr. 1976).
Forster, I. W. et al., "Biological Reaction to Carbon Fiber Implants: The Formation and Structure of a Carbon-Induced `Neotendon`," pp. 299-307 (1977).
Tayton, Keith et al., "The use of Semi-Rigid Carbon-Fibre-Reinforced Plastic Plates for Fixation of Human Fractures," Jnl of Bone and Joint Surgery, vol. 64-B, pp. 105-111 (1982).
Musikant, S., "Quartz and Graphite Filament Reinforced Polymer Composites for Orthopedic Surgical Application," Jnl Biomed. Mater. Res. Symposium, vol. 1, pp. 225-235 (1971).
Hastings, G. W., "Carbon Fibre Composites for Orthopaedic Implants," Composites, pp. 193-197 (Jul. 1978).
Hunt, M. S., "Fibre Reinforced Composites for Orthopaedic Surgical Implants," The South African Mechanical Engineer, vol. 31, pp. 1-5 (Jan. 1981).
Bradley, J. S. et al., "Carbon Fibre-Reinforced Plastic for Orthopaedic Implants," Mechanical Properties of Biomaterials, Editors: Hastings & Williams, Ch. 30, pp. 379-386 (1980).
Scheer, Wolfgang, "Carbon Fiber Reinforced Epoxy Resin, a Material for Human Implants," pp. 251-277 (1981).
Soltesz, U. et al., "Investigation of Mechanical Behaviour of Fibre-Reinforced materials for Endoprosthetic Devices," Biomaterials, edited Winter et al., pp. 33-38 (1982).
Lipka, John M. et al., "The Role of Carbon Fibers in Orthopedic Implants: A Review," pp. 335-343 (date unknown); p. 336 not available.
Katz, J. Lawrence, "Present and Potential Biomedical Applications of Composite Materials Technology," pp. 452-476 (1984).
Fu-Kuo Chang et al., "Failure of Composite Laminates Containing Pin Loaded Holes Method of Solution," Jnl of Composite Materials, vol. 18, pp. 255-278 (May, 1984).
Fu-Kuo Chang, et al., "The Strengths of Fiber Reinforced Composite Bends," Jnl of Composite Materials, vol. 20, pp. 31-45 (Jan. 1986).
Gregory, M. A. et al., "Predicting Crack Growth Direction in Unidirectional Composites," Jnl of Composite Materials, vol. 20, pp. 67-85 (Jan. 1986).
Chang Fu-Kuo
Davidson James A.
Georgette Frederick S.
Reifsnider Kenneth
Gualtieri Gina M.
Isabella David J.
Smith & Nephew Richards Inc.
LandOfFree
Orthopedic device of biocompatible polymer with oriented fiber r does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthopedic device of biocompatible polymer with oriented fiber r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthopedic device of biocompatible polymer with oriented fiber r will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-207883