发明名称 |
Equipment and method for calibration and quality assurance of an ultrasonic bone analysis apparatus |
摘要 |
A method of calibrating an ultrasound bone analysis apparatus having a pair of transducer assemblies. Each transducer assembly has a transducer and a coupling pad, and is movable relative to the other so that a face of each pad can be moved to a position in which they mutually contact and to a position where the faces contact body parts. The method according to the present application includes transmitting an ultrasound signal from one transducer and receiving a signal corresponding to the transmitted ultrasound signal through the other transducer when the transducer assemblies are in the first position and the second position. A time for the ultrasound signal to pass through the body part is determined, and a width of the body part based on positions of the transducers is determined. Then, using the time and width values a speed of sound of the ultrasound signal passing through the body part with squish compensation is calculated.
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申请公布号 |
US5935073(A) |
申请公布日期 |
1999.08.10 |
申请号 |
US19970866804 |
申请日期 |
1997.05.30 |
申请人 |
HOLOGIC, INC. |
发明人 |
WILSON, KEVIN E.;BARRY, DONALD;LAMSER, DENNIS G.;O'BRIEN, JOHN P.;STEIN, JAY A. |
分类号 |
A61B8/00;A61B5/107;A61B8/08;(IPC1-7):A61B8/00 |
主分类号 |
A61B8/00 |
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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