发明名称 |
ULTRASONIC TEETH CLEANING APPLIANCE HAVING SPATIAL, TEMPORAL AND/OR FREQUENCY VARIATIONS |
摘要 |
The appliance includes an appliance body (12) as well as a system for producing microbubbles (20) and a system for producing an ultrasound signal beam (22) in a frequency range which activates at least some of the microbubbles. The appliance includes at least one of the following: (a) an array of ultrasound transducer elements (40) which produce a plurality of ultrasound signal beams; (b) an amplitude modulation assembly (51) for modulating the amplitude of the ultrasound signal; and (c) a frequency modulation system (61) for changing the frequency of the ultrasound signals over a selected range, to impact a range of microbubble sizes. |
申请公布号 |
EP2384162(A1) |
申请公布日期 |
2011.11.09 |
申请号 |
EP20090801785 |
申请日期 |
2009.12.09 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
FRASER, JOHN, DOUGLAS |
分类号 |
A61C17/20 |
主分类号 |
A61C17/20 |
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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