ACOUSTICAL SWITCH AND CATHETER COMPRISING ACOUSTICAL SWITCH
    1.
    发明申请
    ACOUSTICAL SWITCH AND CATHETER COMPRISING ACOUSTICAL SWITCH 审中-公开
    声学开关和导管包括声学开关

    公开(公告)号:US20110275962A1

    公开(公告)日:2011-11-10

    申请号:US13127089

    申请日:2009-11-05

    IPC分类号: A61N7/00

    摘要: The invention relates to an acoustical switch wherein the idea to the ultrasound propagation direction may be changes without moving the switch. The switch device comprises two sheets of acoustically transparent material. The sheets constitute opposite walls of a housing. The switch device further comprises one or more orifices for allowing conduction of fluid into and/or out of said housing. The switch device may be made reflective by filling the housing with a gas via the one or more orifices. Moreover, the switch device may be made transmissive to ultrasound by filling the housing with a liquid via the one or more orifices and/or by subjecting the housing to underpressure via the one or more orifices. The acoustical switch device fits well within a catheter, which has severe dimensional limitations.

    摘要翻译: 本发明涉及一种声学开关,其中超声波传播方向的想法可以是不改变开关而改变的。 开关装置包括两片声透明材料。 纸张构成外壳的相对壁。 开关装置还包括用于允许流体进入和/或离开所述壳体的一个或多个孔。 开关装置可以通过经由一个或多个孔口用气体填充壳体来制成反射性的。 此外,开关装置可以通过经由一个或多个孔口填充液体的壳体和/或经由一个或多个孔口对壳体进行负压来对超声波进行透射。 声学开关装置很好地配合在具有严格尺寸限制的导管内。