公开(公告)号：US5746699A

公开(公告)日：1998-05-05

申请号：US769697

申请日：1996-12-18

申请人： Jeffrey Fredberg ,  Gary Glass ,  John Lehr ,  Bruno Louis

发明人： Jeffrey Fredberg ,  Gary Glass ,  John Lehr ,  Bruno Louis

IPC分类号： A61B5/085 ,  A61B8/12 ,  A61B8/00

CPC分类号： A61B8/12 ,  A61B5/085 ,  A61B8/445

摘要： Single hand supportable and operable apparatus for providing an output signal characteristic of the morphology of a respiratory tract includes an acoustic pipe for exchanging acoustical energy with the tract. The pipe has an open first end in communication with an opening in the respiratory tract. A transducer, such as a loudspeaker, is coupled to the pipe for launching acoustical energy into the pipe, producing an incident wave towards the opening in the tract and a reflected wave to form a transient wave field in the pipe representative of the morphology of the tract. Preferably, first and second pressure wave sensing transducers, such as microphones, mounted along the length of the pipe in spaced relationship provide first and second transduced signals representative of the transient wave field. A processor processes the first and second transduced signals to provide an output signal characteristic of the morphology of the tract, such as the cross-sectional area as a function of the distance from the opening in the tract.

摘要翻译： 用于提供呼吸道形态特征的输出信号的单手支持和可操作的装置包括用于与管道交换声能的声管。 管道具有与呼吸道中的开口连通的敞开的第一端。 诸如扬声器的传感器耦合到管道，用于将声能发射到管道中，产生朝向管道中的开口的入射波和反射波，以在代表管道的形态的管道中形成瞬态波场 道。 优选地，以间隔关系沿着管的长度安装的第一和第二压力波感测换能器（例如麦克风）提供表示瞬态波场的第一和第二转导信号。 处理器处理第一和第二转导信号以提供特征的道的形态的输出信号，例如横截面积作为与管道中的开口的距离的函数。

公开(公告)号：US5666960A

公开(公告)日：1997-09-16

申请号：US117176

申请日：1994-03-31

申请人： Jeffrey Fredberg ,  Gary Glass ,  John Lehr ,  Bruno Louis

发明人： Jeffrey Fredberg ,  Gary Glass ,  John Lehr ,  Bruno Louis

IPC分类号： A61B5/085 ,  A61B7/00 ,  A61B8/12 ,  A61B5/08

CPC分类号： A61B8/12 ,  A61B5/085 ,  A61B7/003

摘要： Single hand supportable and operable apparatus for providing an output signal characteristic of the morphology of a respiratory tract includes an acoustic pipe for exchanging acoustical energy with the tract. The pipe has an open first end in communication with an opening in the respiratory tract. A transducer, such as a loudspeaker, is coupled to the pipe for launching acoustical energy into the pipe, producing an incident wave towards the opening in the tract and a reflected wave to form a transient wave field in the pipe representative of the morphology of the tract. Preferably, first and second pressure wave sensing transducers, such as microphones, mounted along the length of the pipe in spaced relationship provide first and second transduced signals representative of the transient wave field. A processor processes the first and second transduced signals to provide an output signal characteristic of the morphology of the tract, such as the cross-sectional area as a function of the distance from the opening in the tract.

摘要翻译： PCT No.PCT / US93 / 05819 Sec。 371日期1994年3月31日 102（e）1994年3月31日PCT提交1993年6月16日PCT公布。 出版物WO94 / 09700 日期1994年5月11日用于提供呼吸道形态特征的输出信号的单手可支撑和可操作的装置包括用于与管道交换声能的声管。 管道具有与呼吸道中的开口连通的敞开的第一端。 诸如扬声器的传感器耦合到管道，用于将声能发射到管道中，产生朝向管道中的开口的入射波和反射波，以在代表管道的形态的管道中形成瞬态波场 道。 优选地，以间隔关系沿着管的长度安装的第一和第二压力波感测换能器（例如麦克风）提供表示瞬态波场的第一和第二转导信号。 处理器处理第一和第二转导信号以提供特征的道的形态的输出信号，例如横截面积作为与管道中的开口的距离的函数。