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MRI Safe Actuator for Implantable Floating Mass Transducer
专利权人:
Geoffrey Ball
发明人:
Geoffrey Ball,Peter Lampacher,Wolfgang Amrhein,Gunther Weidenholzer
申请号:
US13598759
公开号:
US20130046131A1
申请日:
2012.08.30
申请国别(地区):
US
年份:
2013
代理人:
摘要:
An implantable hearing prosthesis for a recipient patient is described. An implantable signal transducer includes one or more electromagnetic drive coils for receiving an electrical stimulation signal and a cylindrical transducer magnet arrangement including an inner disk magnet having a first magnetic field direction, and an outer annular magnet surrounding the inner rod magnet and having a second magnetic field direction opposite to the first magnetic field direction. Current flow through the one or more electromagnetic drive coils from the electrical stimulation signal creates a coil magnetic field that interacts with the magnetic fields of the transducer magnet arrangement to create vibration in the transducer magnet which is developed by the signal transducer as a mechanical stimulation signal for audio perception by the patient.
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中国工程科技知识中心
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