作者: David N. Plescia , Annie L. Ferreri , William L. Hassler , Daniel F. Dlugos
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摘要: A system is operable to detect the orientation of an implant component. The comprises implantable component, external and a logic component first coil transmit signal having phase. second compare phase with signal. further configured determine relative based on comparison may be used injection port in implanted gastric band system. alternatively variety other types systems.