发明名称 |
Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces |
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.
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申请公布号 |
US6162177(A) |
申请公布日期 |
2000.12.19 |
申请号 |
US19980089919 |
申请日期 |
1998.06.03 |
申请人 |
NOVADENT LTD. |
发明人 |
BAB, ITAI;FEUERSTEIN, OSNAT;ZIV, VERED VIVI |
分类号 |
A61C19/04;G01N29/07;(IPC1-7):A61B8/00 |
主分类号 |
A61C19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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