发明授权
- 专利标题： Surgical system having a cassette with an acoustic air reflector
- 专利标题（中）： 手术系统具有带有声空气反射器的盒
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申请号： US11510903申请日： 2006-08-28
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公开(公告)号： US08348879B2公开(公告)日： 2013-01-08
- 发明人: Shawn X. Gao , Nader Nazarifar , Cornelis J. Drost , Yuri M. Shkarlet
- 申请人： Shawn X. Gao , Nader Nazarifar , Cornelis J. Drost , Yuri M. Shkarlet
- 申请人地址： CH Basel
- 专利权人： Novartis AG
- 当前专利权人： Novartis AG
- 当前专利权人地址： CH Basel
- 主分类号： A61N1/30
- IPC分类号： A61N1/30 ; G01F1/66
摘要：
A surgical cassette have a rigid fluid channel formed into a rigid plastic component or housing. The piezoelectric crystals of an ultrasonic flow meter are positioned on one side of the fluid channel. The side wall of the fluid channel opposite the piezoelectric crystals is exposed to fluid in the flow channel on its interior side and is exposed to ambient air on its exterior side. The interface between the wall and the air acts as an acoustic reflector for the operation of the ultrasonic flow meter.