Blood oxygenator with an organic membrane

A device for blood oxygenation, with a membrane made of an organic material of blowing properties, comprising:

• a gas exchange chamber having a longitudinal shape as a straight cylinder or a elliptic cylinder and being comprised of a first base on a first side of the longitudinal shape, a side wall, and a second base opposite said first base and on a second side of the longitudinal shape;
• a first plurality of passage openings on said first base;
• a second plurality of passage openings on said second base,
• an expansion tank being in gas-tight connection with said first side so as to feed a gas mixture containing oxygen to said gas exchange chamber and being comprised of an inlet opening being configured so as to provide the gas mixture from a feeding installation;
• a gas mixture discharging tank being in gas-tight connection with said second side so as to transport the gas mixture from said gas exchange chamber and being comprised of an outlet opening being configured so as to transport the gas mixture from said gas exchange chamber;
• a membrane being comprised of a capillary bundle and being uniformly distributed inside said gas exchange chamber,
• wherein said capillary bundle is comprised of a plurality of capillaries, each capillary of said plurality of capillaries being comprised of a semi-permeable material so as to be permeable to gas mixture particles and non-permeable to blood particles and having respective ends anchored in a corresponding passage opening of said first plurality of passage openings on said first base and a corresponding passage opening of said second plurality of passage openings on said second base,
• wherein each capillary of said plurality of capillaries is tensed with a tension force of a value from 1 to 100 N,
• wherein each capillary of said plurality of capillaries is parallel to the longitudinal axis of said gas exchange chamber and to each other, or each capillary of said plurality of capillaries is arranged spirally so as to be twisted along the longitudinal axis of said gas exchange chamber by an angle falling within a range from 15 to 720 degrees,
• wherein each capillary of said plurality of capillaries is comprised of a tube having an external diameter from 30 to 600 μm;
• a blood flow inlet opening in said side wall at said first side of said gas exchange chamber;
• and
• a blood flow outlet opening in said side wall at said second side of said gas exchange chamber so as to flow a blood stream from said blood flow inlet opening to said blood flow outlet opening
• wherein each capillary of said plurality of capillaries is comprised of an organic material having blowing, anti-inflammatory and antithrombotic properties,
• wherein the organic material consists of:
• a base being at least one of a group consisting of:
• polytetrafluoroethylene (PTFE, teflon), polyvinylidene fluoride (PVDF), copolymer of hexafluoropropylene, and tetrafluoroethylene (FEP);
• and
• an admixture of albumin being embedded in a micro-structure of a base material and having a base admixture ratio from 80÷1 to 1200÷1, said membrane being comprised of 40 to 60% open pores and a remaining 60-40% closed pores and being filled with an active substance being comprised of albumin;
• or
• an admixture of argatroban being embedded in said microstructure and having a corresponding base admixture ratio from 80÷1 to 1200÷1, said membrane being comprised of 40 to 60% open pores and a remaining 60-40% closed pores and being filled with a respective active substance being comprised of argatroban;
• or
• an admixture of bivalirudin being embedded in said microstructure and having a corresponding base admixture ratio from 80÷1 to 1200÷1, said membrane being comprised of 40 to 60% open pores and a remaining 60-40% closed pores and being filled with a respective active substance being comprised of bivalirudin;
• or
• an admixture of fondaparinux being embedded in said microstructure and having a corresponding base admixture ratio from 80÷1 to 1200÷1, said membrane being comprised of 40 to 60% open pores and a remaining 60-40% closed pores and being filled with a respective active substance being comprised of fondaparinux;
• or
• an admixture of heparin being embedded in said microstructure and having a corresponding base admixture ratio from 80÷1 to 1200÷1, said membrane being comprised of 40 to 60% open pores and a remaining 60-40% closed pores and being filled with a respective active substance being comprised of heparin.