Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis
Patent
1985-09-23
1987-09-15
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
623 66, 427 2, 128334R, A61F 202, A61B 1704, A01N 102
Patent
active
046937200
ABSTRACT:
The present invention comprises a flexible planar sheet having perimetric edges, the sheet being formed from a plurality of multi-fiber carbon filaments. The sheet is coated with a first solution of biodegradable polymer dissolved in a solvent, and the solvent is permitted to evaporate thereby leaving a first film of biodegradable polymer on the flexible sheet member. A second solution is applied to the sheet and contains a biodegradable polymer dissolved in a solvent, the concentration by weight of the polymer with respect to the solvent being greater in the second solution than in the first solution. When the solvent of the second solution evaporates it leaves a second film of biodegradable polymer on the planar sheet adjacent to the perimetric edges thereof. An alternative method of applying the polymer to the sheet is to lay polymer strips on the sheet and to apply heat to those polymer strips.
REFERENCES:
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patent: 4268468 (1981-05-01), Esper et al.
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patent: 4338926 (1982-07-01), Kummer et al.
patent: 4347847 (1982-09-01), Usher
patent: 4411027 (1983-10-01), Alexander
patent: 4520821 (1985-06-01), Schmidt
Taylor et al., "Long Term Effects of Carbon on Soft Tissues", The Journal of Bone and Joint Surgery, vol. 1, 1982.
S. Saha, et al., "Comparative Study of Carbon and Graphite Cloth with Marlex and Dacron Mesh in the Repair of Abdominal Wound Defects", believed to have been published in 1981 or 1982.
C. Johnson-Nurse et al. "The Use of Flexible Carbon Fibre in the Repair of Experimental Large Abdominal Incision Hernias", Br. J. Surg., vol. 67 (1980).
Devanathan Deva
Scharnberg Lorne C.
Apley Richard J.
Cannon Alan W.
Katecho, Incorporated
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