Medical guide wire and process for production thereof

A - Human Necessities – 61 – M

Patent

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A61M 25/01 (2006.01)

Patent

CA 2499204

A medical guide wire (1) is made in which at least a fluororesin coating layer (13) is formed on the surface of a metal wire (11), wherein particulate matter is present in the fluororesin coating layer (13), and the fluororesin coating layer covers the particulate matter and at least some of the particulate matter is formed in surface protrusion-shaped projections (14). It is thus possible to provide a medical guide wire that is inexpensive to manufacture and whose strength is unaffected and frictional resistance is low, and manufacturing method for the same.

L'invention concerne un fil guide médical (1) produit par formation d'au moins une couche de revêtement de fluororésine (13) sur la surface d'un fil métallique (11). Une matière particulaire est présente dans ladite couche de revêtement de fluororésine (13), dans un état où la matière est recouverte par la couche de revêtement et au moins une partie de la matière particulaire forme des protubérances (14) sur la surface. Cette invention a aussi trait à un fil guide médical qui peut être produit à moindres coûts sans avoir une influence défavorable sur les résistances et qui présente une faible résistance frictionnelle. Ladite invention concerne également un procédé de production associé.

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