Fluid exchange catheter system

Details Fluid exchange catheter system Fluid exchange catheter system

A - Human Necessities

61

M

A61M 1/00 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2621557

The proposed invention is a catheter's system that can be used for concurrent fluid infusion and aspiration in humans, animals and biological material, at a wide range of flow rates, without any blockage problems. The proposed system has devices that control the infused liquid's pressure changes accordingly to the aspirated liquid's pressure changes, in order to allow accurate and safe fluid exchange flow control and create changes of pressures at the catheter's tip that do not allow the catheter's blockage.

La présente invention concerne un système de cathéter que l~on peut utiliser pour une infusion et une aspiration simultanées de fluides chez les humains, les animaux et dans la matière biologique, sur une large plage de débits, sans problèmes de blocage. Le présent système comporte des dispositifs qui contrôlent les changements de pression du liquide infusé en fonction des changements de pression du liquide aspiré, dans le but de permettre un contrôle précis et sûr du débit d~échange de fluides et de créer des changements de pressions au niveau de l~extrémité du cathéter qui n~autorisent pas de blocage du cathéter.

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