Introducer device for catheters o.t.l. with eversible sleeve

Details Introducer device for catheters o.t.l. with eversible sleeve Introducer device for catheters o.t.l. with eversible sleeve

A - Human Necessities

61

M

A61M 25/01 (2006.01)

Patent

CA 2407373

Disclosed is an introducer apparatus (10) comprising a sleeve fixation mechanism or introducer member (12), such as a catheter, introducer, or ring-like structure, which is attached to a protective sleeve (13) comprising a thin flexible material such as a polymeric film. The sleeve is inverted into the passageway (22) of a second member (15), such as a catheter, feeding tube, introducer, etc., that is advanced through the passageway (20) of the introducer member and is introduced into a bodily passage (26) of a patient, such as the bile duct, nasal passages, colon, etc. The sleeve everts from the passageway of the second member during its advancement to lay down a friction-reducing surface. The sleeve prevents frictional contact between the second member and delicate or sensitive tissues.

L'invention se rapporte à un appareil introducteur (10) comportant un mécanisme de fixation de manchon ou un élément introducteur (12), du type cathéter, introducteur ou structure annulaire, qui est attaché à un manchon protecteur (13) comprenant une matière souple mince telle qu'un film polymère. Ledit manchon est retourné vers l'intérieur de la voie de passage (22) d'un second élément (15), du type cathéter, sonde d'alimentation, introducteur, etc., qui est déplacé dans la voie de passage (20) de l'élément introducteur et introduit dans un passage corporel (26) de patient, tel que le canal cholédoque, les voies nasales, le colon, etc. Le manchon se retourne à partir de la voie de passage du second élément au cours de sa progression de manière à former une surface de réduction des frottements. Le manchon empêche le contact de frottement entre le second élément et les tissus sensibles ou fragiles.

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