Self-deploying catheter assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 29/00 (2006.01)

Patent

CA 2519904

A catheter having an elongate drainage tube with a proximal end and a distal end, is adapted to extend through a body conduit and into a body cavity. An anchor disposed the distal end of the tube is disposed in the body cavity and is adapted to be moved from an insertion position to a withdrawal position. The anchor in the insertion position has a low profile when the tube is moved distally and in the withdrawal position has a low profile when the tube is moved proximally. The first end of the anchor is attached to the tube, and a tension member is provided to extend distally of the tube to releasably hold the second end of the anchor in a fixed relationship with the tube. In an associated method, this tension member is severed to release the second end of the anchor from the tube and permit withdrawal of the tube and the anchor in a low-profile state.

L'invention concerne un cathéter comprenant un tube de drainage allongé avec une extrémité proximale et une extrémité distale, adapté pour s'étendre à travers un canal corporel et dans une cavité corporelle. Un dispositif de fixation situé au niveau de l'extrémité distale du tube est disposé dans la cavité corporelle et est adapté pour passer d'une position d'insertion à une position de retrait. Le dispositif de fixation présente un profil bas dans la position d'insertion lorsque le tube est déplacé de manière distale, et un profil bas dans la position de retrait lorsque le tube est déplacé de manière proximale. La première extrémité du dispositif de fixation est fixée au tube, et un élément de tension est destiné à s'étendre de manière distale par rapport au tube afin de retenir de manière amovible la seconde extrémité du dispositif de fixation fixée au tube. Dans un procédé associé, ledit élément de tension est rompu pour libérer la seconde extrémité du dispositif de fixation du tube et permettre le retrait du tube et du dispositif de fixation à profil bas.

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