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US08033173B2 Amplifying ultrasonic waveguides 有权
放大超声波导管

Amplifying ultrasonic waveguides
摘要:
Ultrasonic waveguides having improved velocity gain are disclosed for use in ultrasonic medical devices. Specifically, the ultrasonic waveguides comprises a first material having a higher acoustic impedance and a second material having a lower acoustic impedance.
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