Catheter for membrane blood oxygenation

An intracorporeal oxygenation system (100) said system comprising a blood oxygenator having a blood compartment and a gas compartment, said blood and gas compartments being separated by a gas permeable barrier so as to allow exchange of carbon dioxide in blood in said blood compartment with oxygen in said gas compartment characterized in that said system (100) comprises a catheter device for insertion in a blood vessel of human comprising an interior portion (100a) and an exterior portion (100b);

• wherein said interior portion (100a) comprises:
• an annular housing (110) configured to be inserted at a controlled depth into the vascular system of the patient having a proximal end opening (101), a distal end opening (102), a longitudinally extending linking portion between said proximal end opening and said distal end opening and at least two chambers inside the lumen of said annular housing, vertically extending from said proximal end opening of the annular housing towards said distal end opening of said annular housing;
• a plurality of capillary conduit (111) configured to be positioned in said lumen of said annular housing between distal end of said chambers and distal end of said
• annular housing wherein said capillary conduit comprises a first end portion (111a) and a second end portion (111b) and a longitudinally extending linking portion between said first end portion and said second end portion;
• a pumping device (130) configured to be positioned within the lumen and distal end of the annular housing such that said pumping device draws blood from a blood vessel into said annular housing for oxygenation and pumps out oxygenated blood;
• an air sensing device (140) configured to be positioned within the proximity of a motor pump comprising an air sensor to detect gas leakage within the distal end of said pumping device;
• a blood sensor (150) configured to be positioned within said second chamber of said annular housing which detects any blood leakage within said second chamber;
• a collar (160) configured to be positioned on said distal end of said annular housing extending distally along the axis parallel to the central axis of said annular housing;
• wherein said at least two chambers comprise a first chamber (104) and a second chamber (105) separated by a vertically planar surface along the central axis of the annular housing;
• wherein said distal ends of said first chamber (104) and said second chamber (105) are sealed with at least one radially noncollapsing disc (106) comprising a plurality of apertures (107) arranged along radii of the disc;
• and
• wherein said first end portion (111a) and said second end portion (111b) are configured to mate with at least a portion of said plurality of apertures (107) on said radially non-collapsing disc (106) located on said distal end of at least one chamber.