Acoustic impedance measurement probe
    22.
    发明公开
    Acoustic impedance measurement probe 失效
    Akustische Impedanzmessprobe。

    公开(公告)号:EP0398076A1

    公开(公告)日:1990-11-22

    申请号:EP90108343.6

    申请日:1990-05-03

    申请人: Madsen, Poul Bent

    发明人: Madsen, Poul Bent

    IPC分类号: A61B5/12

    摘要: A probe for use in acoustic impedance measurement is disclosed. The probe has a probe element (4) with a distal end for insertion in a patient's ear canal, an actuator (5) coaxial with and outside the probe element, and a flexible cuff (1) outside and extending between the distal ends (3, 7) of the probe element and the actuator. The actuator is moveable axially with respect to the probe element between a first position where the distal ends are axially separated such that the cuff is in an unexpanded minimum diameter state and a second position where the distal ends are closer together such that the cuff is forced to an expanded larger diameter state, the cuff being sufficiently flexible to effect a seal between it and the patient's ear canal.

    摘要翻译: 公开了一种用于声阻抗测量的探头。 探针具有探针元件(4),其具有用于插入患者耳道中的远端,与探针元件同轴并且在探针元件外部的致动器(5),以及在远端(3)之外并在其之间延伸的柔性箍 ,7)。 致动器可相对于探针元件在第一位置和第二位置之间相对于第一位置轴向移动,在第一位置,其中远端被轴向分开,使得袖带处于未膨胀的最小直径状态,而第二位置,其中远端更靠近在一起,使得袖带被迫 到扩大的较大直径状态,袖带具有足够的柔性以在其与患者的耳道之间形成密封。