METHOD OF MANUFACTURING ePTFE ARTIFICIAL VASCULAR GRAFT WITH IMPROVED BLOOD COMPATIBILITY BY SELECTIVE PLASMA ETCHING
AssigneesSeoul National University R&Db Foundation, Genoss Co., Ltd.
InventorsHyoun-Ee Kim, Cheonil Park, Sung Min Chung
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Abstract
The present invention relates to a method of manufacturing an artificial vascular graft, which comprises implanting a bioactive metal into an expanded polytetrafluoroethylene (ePTFE) surface without an interface by performing plasma etching using a bioactive metal target, and an artificial vascular graft with improved blood compatibility, which is manufactured by way of the method.
Claims15
A method of manufacturing an artificial vascular graft with a metallized surface comprising an expanded polytetrafluoroethylene (ePTFE) specimen and a bioactive metal implanted into a surface of the expanded polytetrafluoroethylene specimen without an interface, the method comprising applying a negative voltage to a bioactive metal target in the presence of an inert gas and at the same time applying a negative voltage for bias to a fixing plate on which an expanded polytetrafluoroethylene specimen is positioned, thereby accelerating a bioactive metal cation by way of a potential difference formed between the bioactive metal target and the expanded polytetrafluoroethylene specimen as a step of implanting a bioactive metal into an expanded polytetrafluoroethylene surface without an interface by performing plasma etching using a bioactive metal target under a predetermined reaction condition.
An artificial vascular graft with a metallized surface, comprising an expanded polytetrafluoroethylene substrate;
- and a bioactive metal implanted into a surface of the expanded polytetrafluoroethylene substrate without an interface.
Dependencies are inferred from the claim text.