Ultrasound contrast agents and methods of making and using them

发明授权

US06613306B1 Ultrasound contrast agents and methods of making and using them 失效

标题翻译：超声造影剂及其使用方法

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专利标题： Ultrasound contrast agents and methods of making and using them
专利标题（中）： 超声造影剂及其使用方法
申请号： US09401838

申请日： 1999-09-22
公开(公告)号： US06613306B1

公开(公告)日： 2003-09-02
发明人: Michel Schneider , Feng Yan , Pascal Grenier , Jerome Puginier , Marie-Bernadette Barrau , Philippe Bussat , Eva Hybl , Daniel Bichon
申请人： Michel Schneider , Feng Yan , Pascal Grenier , Jerome Puginier , Marie-Bernadette Barrau , Philippe Bussat , Eva Hybl , Daniel Bichon
优先权： EP90810262 19900402; EPPCT/EP91/00620 19910402; EP92810046 19920124; EP93810885 19931215
主分类号： A61B800
IPC分类号： A61B800

Ultrasound contrast agents and methods of making and using them

摘要：

Gas or air filled microbubble suspensions in aqueous phases usable as imaging contrast agents in ultrasonic echography. They contain surfactants and, optionally, hydrophilic stabilizers. The surfactants can be in the form of liposomes. The suspensions are obtained by exposing the surfactants to air or a gas before or after admixing with an aqueous phase. One can impart outstanding resistance against collapse under pressure to these gas-filled microbubbles used as contrast agents in ultrasonic echography by using as fillers gases whose solubility in water, expressed in liter of gas by liter of water under standard conditions, divided by the square root of the molecular weight does not exceed 0.003. Contrast agents with particular mixtures of gases are also disclosed that have advantageous properties.

摘要（中）：

在超声波回波成像中用作成像造影剂的水相中的气体或空气填充的微泡悬浮液。它们含有表面活性剂和任选的亲水稳定剂。表面活性剂可以是脂质体的形式。通过在与水相混合之前或之后将表面活性剂暴露于空气或气体中来获得悬浮液。通过使用作为填充气体的填充气体，其在水中的溶解度，以标准条件下以升水表示的水分数除以平方根，可以赋予在超声波回波造影中用作造影剂的这些充气微泡的压力下突出的抵抗压力崩溃的抵抗力的分子量不超过0.003。还公开了具有特定气体混合物的对比剂，其具有有利的性质。

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