Implantable sensor unit and transponder unit having sensor device

摘要

A sensor device (10) comprises an implantable sensor unit (100), a transponder unit (200) and a wired connection (300) which flexibly and electrically connects the implantable sensor unit (100) and the transponder unit (200). The implantable sensor unit (100) is adapted to be implanted in a body. The implantable sensor unit (100) includes a comparator (120) and a sensor adapted to detect a property of the body in vivo. The sensor is adapted to provide an analog signal to a first input (120a) of the comparator (120). The transponder unit (200) is adapted to provide a control signal to the implantable sensor unit (100) and to receive an output signal of the comparator (120). The implantable sensor unit (100) is adapted to provide an analog approximation signal in response to the control signal to a second input (120b) of the comparator (120). The wired connection (300) is adapted to transmit the control signal and the output signal of the comparator (120).