Emulsion of fluorocarbon compounds for medical purposes and...

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/02 (2006.01) A61K 9/107 (2006.01) A61P 7/00 (2006.01) A61P 7/08 (2006.01)

Patent

CA 2557833

The invention relates to medicine, in particular to medications for treating blood losses, hypoxic and ishemic states, for improving a blood oxygen supply and for preserving isolated perfused organs and tissues. The inventive medical emulsion of perfluororganic compounds comprises rapidly excretable perfluororganic compounds such as perfluordecalin, perfluoractilbromide, a perfluororganic additive embodied in the form of a mixture of perfluorinated tertiary amines and phospholipids in the form of a water-salt dispersion. Said perfluordecalin and perfluoractilbromide are contained in the composition of the rapidly excretable perfluororganic compounds at a ratio ranging from 10:1 to 1:10. The mixture of perfluorinated tertiary amines is embodied in the form of the mixture of perfluorotripropylamine and the coproducts thereof: cis- and trans-isomers perfluor-1-propyl 3,4-dimethylpirrolidone and perfluor-1-propyl- 4-methhylpiperidine. The inventive method for producing the emulsion consists in producing the water-salt dispersion of phospholipids, in homogenising the perfluororganic compounds therein at a high pressure and in hear sterilisation of the final emulsion. The storage life of the inventive emulsion in the unfrozen state thereof at a temperature of +4 ~C is equal to at least 6 months during which the biocompatibility of said emulsion with a biological medium (blood, plasma or serum) is preserved.

L'invention appartient au domaine de la médecine et concerne notamment des préparations médicinales destinées à traiter des pertes de sang, des états ischémiques ou hypoxiques, à améliorer le transport d'oxygène par le sang, et à préserver les organes et tissus isolés placés sous perfusion. L'émulsion à base de compositions organiques perfluorées médicinales comprend la perfluorodécaline et le perfluorooctylbromure, des compositions organiques perfluorées à évacuation rapide, un additif organique perfluoré, qui se présente comme un mélange d'amines tertiaires perfluorées, et des phospholipides se présentant comme une dispersion dans un milieu salin et aqueux. La perfluorodécaline et le perfluorooctylbromure sont contenus dans des compositions organiques perfluorées à évacuation rapide dans des proportions comprises entre 10:1 à 1:10. Le mélange d'amines tertiaires perfluorées se présente comme un mélange de perlfluorotripropylamine et de ses coproduits, cis- et transisomères de perfluor-1-propyl-4-méthylpipéridine. Le procédé de fabrication de l'émulsion comprend la fabrication d'une dispersion de phospholipides dans un milieu salin et aqueux, l'homogénéisation sous haute pression des composés organiques perfluorés dans la dispersion de phospholipides et la stérilisation thermique de l'émulsion continue. La durée de conservation de l'émulsion sous une forme non congelée à +4 DEG C est égale ou inférieure à 6 mois, la biocompatibilité de l'émulsion avec un milieu biologique (sang, plasma ou sérum) étant préservée.

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