发明名称 |
Method of and apparatus for focusing ultrasonic waves in a focal line |
摘要 |
An apparatus for focusing ultrasonic waves in a focal line by an ultrasonic optical system having at least one rotation-symmetrical, non-spherical acoustical reflection surface which together with an ultrasonic transducer element transmits an at least partially convergent ultrasonic field having an annular cross-section.
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申请公布号 |
US3974475(A) |
申请公布日期 |
1976.08.10 |
申请号 |
US19740501313 |
申请日期 |
1974.08.28 |
申请人 |
HOFFMANN-LA ROCHE INC. |
发明人 |
BURCKHARDT, CHRISTOPH BENEDIKT;GRANDCHAMP, PIERRE-ANDRE;HOFFMANN, HEINZ |
分类号 |
A61B8/00;G10K11/28;G10K11/32;H04B11/00;(IPC1-7):H04B11/00 |
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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