申请人:——
公开号:US20030015197A1
公开(公告)日:2003-01-23
The present invention relates to the inhalation delivery of aerosols containing small particles. Specifically, it relates to a method of forming an aerosol for use in inhalation therapy. In a method aspect of the present invention, a method of forming an aerosol for use in inhalation therapy is provided. The method involves the following steps: (a) heating a substrate coated with a composition comprising a drug at a rate greater than 1000° C./s, thereby forming an vapor; and, (b) allowing the vapor to cool, thereby forming an aerosol, which is used in inhalation therapy. In another method aspect of the present invention, a method of forming an aerosol for use in inhalation therapy is provided. The method involves the following steps: (a) heating a substrate coated with a composition comprising a drug to form a vapor, wherein the coated composition is in the form of a film less than 10&mgr; thick; and, (b) allowing the vapor to cool, thereby forming an aerosol, which is used in inhalation therapy. In another method aspect of the present invention, a method of forming an aerosol for use in inhalation therapy is provided. The method involves the following steps: (a) heating a substrate coated with a composition comprising a drug to form a vapor in less than 100 milliseconds, wherein the vapor has a mass greater than 0.1 mg; and, (b) allowing the vapor to cool, thereby forming an aerosol, which is used in inhalation therapy.
本发明涉及吸入输送含有小颗粒的气溶胶。具体而言,本发明涉及一种用于吸入治疗的气溶胶的形成方法。在本发明的方法方面,提供了一种用于吸入治疗的气溶胶的形成方法。该方法包括以下步骤:(a) 以大于 1000° C./s的速度加热涂有包含药物的组合物的基底,从而形成蒸气;以及,(b) 使蒸气冷却,从而形成用于吸入疗法的气溶胶。在本发明的另一个方法方面,提供了一种用于吸入疗法的气雾剂形成方法。该方法包括以下步骤:(a) 加热涂有包含药物的组合物的基底以形成蒸气,其中涂布的组合物呈厚度小于 10&mgr; 的薄膜形式;以及,(b) 使蒸气冷却,从而形成用于吸入疗法的气雾剂。在本发明的另一个方法方面,提供了一种用于吸入疗法的气雾剂的形成方法。该方法包括以下步骤:(a) 在小于 100 毫秒的时间内加热涂有包含药物的组合物的基底以形成蒸汽,其中蒸汽的质量大于 0.1 毫克;以及,(b) 使蒸汽冷却,从而形成用于吸入疗法的气雾剂。