Process for the production of polymeric microparticles,...

Details Process for the production of polymeric microparticles,... Process for the production of polymeric microparticles,...

A - Human Necessities

61

K

A61K 49/22 (2006.01) A61J 3/00 (2006.01) A61K 9/50 (2006.01) A61K 47/34 (2006.01) C08J 3/12 (2006.01) C08K 5/02 (2006.01) C08L 67/04 (2006.01)

Patent

CA 2214778

The invention relates to a process for the production of gaseous microparticles for ultrasonic diagnosis, whose wall material is built up from polyesters of .alpha.-, .beta.- or .gamma.- hydroxycarboxylic acids, particles that are produced according to this process, as well as their use in medical diagnosis.

La présente invention concerne un procédé de fabrication de microparticules à teneur en gaz, destinés à la technique de diagnostic à ultrasons, dont les parois sont constituées de polyesters provenant d'acides hydroxycarboniques alpha , beta , et gamma ; elle concerne aussi les particules fabriquées selon ce procédé ainsi que leur application pour les diagnostics médicaux.

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