Apparatus and method for acoustic analysis of bone using optimized
functions of spectral and temporal signal components
    2.
    发明授权
    Apparatus and method for acoustic analysis of bone using optimized functions of spectral and temporal signal components 失效
    使用光谱和时间信号分量的优化功能的骨骼声学分析的装置和方法

    公开(公告)号:US5720290A

    公开(公告)日:1998-02-24

    申请号:US615643

    申请日:1996-03-13

    IPC分类号: A61B5/103 A61B8/08 A61B8/00

    摘要: An apparatus and method determine externally in a vertebrate subject an index of porosity and non-connectivity of a bone. A preferred embodiment has first and second transducers and a mounting arrangement for mounting the transducers in spaced relationship with respect to the bone. A signal generator,in communication with the first transducer, causes the first transducer to produce acoustic signals, having energy distributed over a frequency range, that are propagated into the subject and received by the second transducer along a path the includes the bone. Finally, the embodiment has a signal processor, in communication with the second transducer, for providing a measurement that is a function of at least one of spectral or temporal components of the sisal received by the second transducer. The transducers act like a point source and point receiver.

    摘要翻译: 在脊椎动物对象外部确定骨骼的孔隙率和非连通性的指标的装置和方法。 优选实施例具有第一和第二换能器以及用于将换能器相对于骨隔开的关系安装的安装装置。 与第一换能器通信的信号发生器使得第一换能器产生具有分布在频率范围上的能量的声信号,所述声信号被传播到被摄体中并且沿着包括骨的路径由第二换能器接收。 最后,该实施例具有与第二换能器通信的信号处理器,用于提供作为由第二换能器接收的剑麻的光谱或时间分量中的至少一个的函数的测量。 换能器像点源和点接收器。

    Acoustic analysis of bone using point-source-like transducers
    3.
    发明授权
    Acoustic analysis of bone using point-source-like transducers 失效
    使用点源式换能器对骨骼进行声学分析

    公开(公告)号:US06371916B1

    公开(公告)日:2002-04-16

    申请号:US09390546

    申请日:1999-09-03

    IPC分类号: A61B800

    摘要: An improved apparatus and method for providing a measurement of the characteristic behavior of an acoustic wave in a bone of a subject. A preferred embodiment has first and second transducers and a mounting arrangement for mounting the transducers in spaced relationship with respect to the bone. The first transducer may transmit acoustic energy over a broad solid angle, thereby behaving as a point source of acoustic energy. Additionally or alternatively, the second transducer may collect acoustic energy over a broad solid angle, thereby behaving as a point receiver. A signal processor in communication with the second transducer provides a measurement that is a function of at least one of transient spectral or transient temporal components of the signal received by the second transducer.

    摘要翻译: 一种改进的装置和方法,用于提供对象的骨骼中声波的特征行为的测量。 优选实施例具有第一和第二换能器以及用于将换能器相对于骨隔开的关系安装的安装装置。 第一传感器可以在宽立体角上传播声能,从而表现为声能的点源。 附加地或替代地,第二换能器可以在宽的立体角上收集声能,从而表现为点接收器。 与第二换能器通信的信号处理器提供测量,该测量是由第二换能器接收的信号的瞬态频谱或瞬时时间分量中的至少一个的函数。

    Apparatus and method for acoustic analysis of bone
    4.
    发明授权
    Apparatus and method for acoustic analysis of bone 失效
    骨骼声学分析装置及方法

    公开(公告)号:US6015383A

    公开(公告)日:2000-01-18

    申请号:US942233

    申请日:1997-10-01

    IPC分类号: A61B5/103 A61B8/08 A61B8/00

    摘要: An improved apparatus and method for providing a measurement of the characteristic behavior of an acoustic wave in a bone of a subject. A preferred embodiment has a first assembly containing mounting means for mounting two transducers in spaced relationship with respect to the bone, and a second, hand-holdable assembly containing a display for displaying an output characterizing the behavior of the acoustic wave in the bone. In other embodiments of the invention, an acoustic signal propagated along a path through the bone is processed to determine the proximity of the path to an edge of the bone.

    摘要翻译: 一种改进的装置和方法,用于提供对象的骨骼中声波的特征行为的测量。 优选实施例具有第一组件,该第一组件包括用于相对于骨骼以间隔开的关系安装两个换能器的安装装置,以及第二手持式组件,其包含用于显示表征骨骼中声波的行为的输出的显示器。 在本发明的其它实施例中,处理沿着通过骨的路径传播的声信号以确定到骨的边缘的路径的接近度。

    Apparatus and method for calibration of an ultrasound transmission probe
    5.
    发明授权
    Apparatus and method for calibration of an ultrasound transmission probe 失效
    用于校准超声波传感探针的装置和方法

    公开(公告)号:US6086536A

    公开(公告)日:2000-07-11

    申请号:US336472

    申请日:1999-06-18

    IPC分类号: A61B8/08 A61B8/00

    CPC分类号: A61B8/0875

    摘要: An apparatus and methods for determining a measure equivalent to broadband sound attenuation from transient or other measures derived from acoustic signals propagated through bone and, additionally, for using this measure for the calibration of an ultrasound bone analysis instrument. A synthetic mathematical filter corresponding to a given value of broadband ultrasound attenuation is applied to the signal propagated through a calibration of known or neutral acoustic properties. The value of the acoustic measure corresponding to the resultant waveform is determined and associated with the broadband ultrasound attenuation value corresponding to the synthetic mathematical filter. A model relating the acoustic measure to BUA values may thereby be established for subsequent clinical application.

    摘要翻译: 一种用于通过从通过骨传播的声信号导出的瞬时或其他测量来确定等同于宽带声音衰减的措施的装置和方法,并且另外用于使用该测量用于超声骨分析仪器的校准。 将对应于宽带超声衰减的给定值的合成数学滤波器应用于通过已知或中性声学特性的校准传播的信号。 确定与所得到的波形对应的声学测量值并与对应于合成数学滤波器的宽带超声衰减值相关联。 因此可以建立将声学测量与BUA值相关联的模型用于随后的临床应用。

    Apparatus and method for calibration of an ultrasound transmission probe

    公开(公告)号:US5947902A

    公开(公告)日:1999-09-07

    申请号:US150914

    申请日:1998-09-10

    IPC分类号: A61B8/08 A61B8/00

    CPC分类号: A61B8/0875

    摘要: An apparatus and methods for determining a measure equivalent to broadband sound attenuation from transient or other measures derived from acoustic signals propagated through bone and, additionally, for using this measure for the calibration of an ultrasound bone analysis instrument. A synthetic mathematical filter corresponding to a given value of broadband ultrasound attenuation is applied to the signal propagated through a calibration of known or neutral acoustic properties. The value of the acoustic measure corresponding to the resultant waveform is determined and associated with the broadband ultrasound attenuation value corresponding to the synthetic mathematical filter. A model relating the acoustic measure to BUA values may thereby be established for subsequent clinical application.