POLYMERIC GAS OR AIR FILLED MICROBALLOONS USABLE SUSPENSIONS IN LIQUID CARRIERS FOR ULTRASONIC ECHOGRAPHY

摘要

A gas or air-filled microbubble with an interfacial polymer membrane suspended in a liquid carrier for injection oral, rectal and urethral administration in vivo for therapeutic or diagnostic purposes (acoustics). The properties (elasticity, permeability, biodegradability) of the polymer membrane of this microbubble can be adjusted according to the choice of polymer, interfacial deposition conditions and polymer additives.