Catheters with lubricious linings and methods for them

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01) A61N 1/04 (2006.01) B29C 53/38 (2006.01) B29C 63/00 (2006.01)

Patent

CA 2624287

A method for making a tubular device includes coating a first surface of a thin sheet, rolling the sheet such that side edges of the sheet are disposed adjacent one another with the coating disposed inwardly, creating a longitudinal seam along the side edges to create a sleeve, and attaching a tubular structure around the sleeve. In another embodiment, the method includes coating a first surface of a thin sheet, wrapping the sheet partially around a mandrel with the coating disposed inwardly, positioning a slotted tube around the sheet and mandrel, attaching the tube to the thin, and trimming any excess material of the sheet. In another embodiment, the method includes coating an outer surface of a thin sleeve, inverting the sleeve, and attaching a tubular structure around the inverted sleeve, thereby providing a tubular device including a lubricious, hydrophilic, and/or otherwise coated inner surface.

L'invention concerne un procédé de fabrication d'un dispositif tubulaire consistant à appliquer un revêtement sur une première surface d'une feuille mince, à enrouler cette feuille de sorte que ses bords latéraux soient adjacents, le revêtement se trouvant sur l'intérieur, à former un joint longitudinal le long des bords latéraux pour créer un manchon, puis à fixer une structure tubulaire autour de ce manchon. Dans un autre mode de réalisation, ce procédé consiste à appliquer un revêtement sur une première surface d'une feuille mince, à envelopper partiellement cette feuille autour d'un mandrin, le revêtement se trouvant sur l'intérieur, à placer un tube fendu autour de la feuille et du mandrin, à fixer le tube à la feuille, puis à rogner tout excédent de matière de la feuille. Dans un autre mode de réalisation, ledit procédé consiste à appliquer un revêtement sur une surface extérieure d'une feuille mince, à inverser le manchon, puis à fixer une structure tubulaire autour du manchon inversé de façon à former un dispositif tubulaire comprenant une surface intérieure lubrifiante hydrophile et/ou pourvue d'un autre revêtement.

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