METHOD FOR PRODUCING THERAPEUTIC FOAMED MATERIAL CONTAINING GAS MICRO-BUBBLES Russian patent published in 2005 - IPC

FIELD: medicine.

SUBSTANCE: method involves passing physiologically permissible gas mixture dispersed in blood and aqueous sclerosing liquid through one or several canals having at least one cross-section size from 0.1 to 30 mcm. Gas-to-liquid proportion is varied in a way that foamed material containing gas micro-bubbles is produced. The material has density of 0.07 g/ml to 0.19 g/ml and half-transformation period not less than 2 min. the device has casing enclosing a chamber allowing pressure to be increased and containing aqueous sclerosing liquid, canal-shaped passage having one or several outlet openings allowing liquid to be released from the chamber allowing liquid pressure to be increased or passage canal to be closed from the chamber to outer space. Fluid medium enclosed in the chamber is forced out along the passage canal through single or several outlet openings when container pressure is high and the passage canal is open. The foamed material containing gas micro-bubbles and has density of 0.07 g/ml to 0.19 g/ml and is able to flows through a needle of size 21 so that 50% and more bubbles having diameter equal to or less than 150 mcm and at least 95% of those bubbles retain diameter equal to or less than 280 mcm.

EFFECT: enhanced effectiveness of blood vessel sclerotherapy by introducing the foamed material into blood vessel.

59 cl, 11 dwg