Turbulent air cleaning method and apparatus for catheter...

Details Turbulent air cleaning method and apparatus for catheter... Turbulent air cleaning method and apparatus for catheter...

A - Human Necessities

61

M

A61M 16/04 (2006.01) A61B 19/00 (2006.01) A61B 19/02 (2006.01) A61L 2/00 (2006.01) A61L 2/18 (2006.01) A61M 25/00 (2006.01) A61M 39/00 (2006.01)

Patent

CA 2427484

A method and apparatus are provided for cleaning a medical device tube, for example a catheter tube (34). The distal end portion (36) of the tube (34) has a distal opening (38) and at least one side opening (40) adjacent to the distal opening (38) . The distal end of the tube is disposed in a closed chamber with the distal opening generally opposite from a first orifice defined in the chamber. A liquid is introduced into the chamber and is drawn into the distal opening in the tube, for example by a suction force. A different fluid medium, such as air, is drawn through the first orifice and into the distal opening in the tube. A turbulent flow path is established with the fluid medium wherein the medium is drawn through the first orifice, into the distal opening in the tube, out the side opening in the tube, and back into the distal opening in the tube. This turbulent flow path enhances the cleaning action of the liquid introduced into the chamber for cleaning the distal end portion of the tube within the chamber.

L'invention concerne un procédé et un dispositif de nettoyage d'un tube d'appareil médical, par exemple d'un cathéter. L'extrémité distale du tube présente une ouverture distale et au moins une ouverture latérale adjacente à l'ouverture distale. L'extrémité distale du tube est disposée dans une chambre fermée, l'ouverture distale étant généralement opposée à un premier orifice défini dans la chambre. Un liquide est introduit dans la chambre et est aspiré dans l'ouverture distale du tube, par exemple au moyen d'une force d'aspiration. Un milieu fluide différent tel que l'air est aspiré au travers du premier orifice, et dans l'ouverture distale du tube. Un courant tourbillonnaire est établi dans le milieu fluide, ledit milieu étant aspiré au travers du premier orifice, dans l'ouverture distale du tube, et hors de l'ouverture latérale du tube, puis à nouveau dans l'ouverture distale du tube. Ce courant tourbillonnaire permet d'améliorer l'action nettoyante du liquide introduit dans la chambre pour le nettoyage de l'extrémité distale du tube dans la chambre.

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