Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Patent
1995-05-24
1998-01-27
Azpuru, Carlos A.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
424425, 428 361, 428 363, A61F 228, B32B 108
Patent
active
057119600
ABSTRACT:
This invention provides an implant material which has high mechanical strength and durability in three-dimensional directions and a function to synchronize with deformation characteristics of surrounding biological tissues, is capable of being penetrated by biological tissues into its fabric space, and does not cause foreign body reaction or can positively connect with biological tissues, so that it can be implanted in the living body for a prolonged period of time. It uses, as a base material, a biocompatible bulk structure of a three-dimensionally woven or knitted fabric of organic fibers or a composite fabric thereof, and its void ratio in the fabric is preferably set to 20 to 90 vol %. More preferably, the surface of organic fibers which constitute the bulk structure is biologically activated or inactivated.
REFERENCES:
patent: 3987797 (1976-10-01), Stephenson
patent: 4089071 (1978-05-01), Kalnberz et al.
"Design and In Vitro Testing of Newly Made Biocomponent Fabrics for Vascular Surgery", Chu et al, Polymer. Mater. Sci. Eng. (1985), 53, 400-4.
Azpuru Carlos A.
Takiron Co., Ltd.
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