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20 条记录 (耗时 0.049 秒)

    Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces
    11.
    发明授权
    Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces 失效
    用于超声波检测牙冠表面光滑表面损伤的装置和方法

    公开(公告)号：US6162177A

    公开(公告)日：2000-12-19

    申请号：US89919

    申请日：1998-06-03

    申请人： Itai Bab ,  Osnat Feuerstein ,  Vered Vivi Ziv

    发明人： Itai Bab ,  Osnat Feuerstein ,  Vered Vivi Ziv

    IPC分类号： A61C20060101 ,  A61C19/04 ,  G01N29/07 ,  A61B8/00

    CPC分类号： G01N29/07 ,  A61C19/04 ,  G01N2291/044

    摘要： This invention is a device and method for the detection of smooth surface lesions such as caries and tooth crown surface cracks on a tooth crown surface, the device having an ultrasonic surface wave transmitter/receiver (20) capable of transmitting ultrasonic surface waves along a tooth crown surface. Surface lesions encountered by the ultrasonic surface waves produce ultrasonic surface wave reflections which are receivable at the generator/receiver, thus enabling the presence of the lesion to be detected. The ultrasonic surface wave generator/receiver may comprise a transducer operatively connected to a wedge-like coupler (30). Longitudinal ultrasonic waves generated by the transducer are imparted onto the tooth surface by the coupler which has a contact surface in contact with the tooth surface being tested. The coupler also enables ultrasonic surface wave reflections to be received by the transducer.

    摘要翻译： 本发明是一种用于检测齿冠表面上的龋齿和牙冠表面裂纹等光滑表面损伤的装置和方法，该装置具有能够沿着牙齿传递超声表面波的超声波表面波发射器/接收器（20） 冠面。 由超声波表面波遇到的表面损伤产生可在发生器/接收器处接收的超声波表面波反射，从而能够检测病变的存在。 超声表面波发生器/接收器可以包括可操作地连接到楔形耦合器（30）的换能器。 由换能器产生的纵向超声波被耦合器赋予到齿面上，该耦合器具有与被测牙齿表面接触的接触表面。 耦合器还使得超声波表面波反射能够被传感器接收。

    Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces
    19.
    发明授权
    Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces 失效
    用于超声波检测牙冠表面光滑表面损伤的装置和方法

    公开(公告)号：US06190318B1

    公开(公告)日：2001-02-20

    申请号：US09089920

    申请日：1998-06-03

    申请人： Itai Bab ,  Osnat Feuerstein ,  Vered Vivi Ziv

    发明人： Itai Bab ,  Osnat Feuerstein ,  Vered Vivi Ziv

    IPC分类号： A61B800

    CPC分类号： G01N29/07 ,  A61C19/04 ,  G01N2291/044

    摘要： A device and method for the detection of smooth surface lesions such as caries and tooth crown surface cracks on a tooth crown surface, the device having an ultrasonic surface wave transmitter/receiver comprising a focused ultrasonic surface waves along a tooth crown surface. Surface lesions encountered by the ultrasonic surface waves produce ultrasonic surface wave reflections which are receivable at the generator/receiver, thus enabling the presence of the lesion, and particularly small lesions, to be detected. The ultrasonic surface wave generator/receiver may comprise a focused transducer, having a focusing element integral therewith or separate therefrom, operatively connected to a wedge-like coupler. Longitudinal ultrasonic waves generated by the transducers are at least partially focused by the focusing element and then imparted onto the tooth surface by the coupler which has a contact surface in contact with the tooth surface being tested. The coupler also enables ultrasonic surface wave reflections to be received by the transducer.

    摘要翻译： 一种用于检测光滑表面损伤（例如牙冠表面上的龋齿和牙冠表面裂纹）的装置和方法，所述装置具有超声表面波发射器/接收器，其包括沿牙冠表面的聚焦超声表面波。 由超声波表面波遇到的表面损伤产生可在发生器/接收器处接收的超声波表面波反射，从而能够检测病变的存在，特别是小损伤。 超声表面波发生器/接收器可以包括聚焦换能器，其具有与其成一体或与其分离的聚焦元件，可操作地连接到楔形耦合器。 由换能器产生的纵向超声波至少部分地被聚焦元件聚焦，然后通过耦合器赋予齿表面，该耦合器具有与被测牙齿表面接触的接触表面。 耦合器还使得超声波表面波反射能够被传感器接收。

    Oral hygiene irrigator syringe bulb
    20.
    发明授权
    Oral hygiene irrigator syringe bulb 失效

    公开(公告)号：US5755572A

    公开(公告)日：1998-05-26

    申请号：US705618

    申请日：1996-08-30

    申请人： Itai Bab ,  Gadi Porat

    发明人： Itai Bab ,  Gadi Porat

    IPC分类号： A61C17/02 ,  A61G17/02

    CPC分类号： A61C17/02

    摘要： An oral irrigator syringe bulb having an elastic compressible bulb, which may be filled with irrigation fluid, and a rigid nozzle having a base portion which may be sealingly fitted to the bulb. The nozzle has a lumen along the longitudinal axis thereof, and the lumen has a fluid outlet at its upper part to which suitable irrigation means can be attached. The nozzle also has an elongate non-kinking flexible dip tube which reaches into the lumen, the free end of the dip tube being provided with a weight, whereby when the nozzle is fitted onto the bulb the free end of the dip tube extends into the bulb and is submerged in the irrigation fluid at any spatial position in which the bulb is held.