MONITORING AND RECORDING IMPLANTABLE SILICON ACTIVE PRESSURE TRANSDUCER

摘要

An implantable active pressure transducer including a pressure sensing element and associated sensor circuitry together enclosed within an innermost glass packaging. The pressure sensing element is anodically bonded to the innermost packaging substantially aligned with an opening defined therein. An outermost biocompatible metal packaging forms a cavity divided into first and second chambers by an intermediate partition. The innermost packaging is disposed within the first chamber without physically directly contacting or being fixed to the outermost packaging. A barrier plate is hermetically sealed to the intermediate partition to hermetically isolate the battery and communication circuitry from a pressure transmitting fluid. Inductive coupling is used to communicate data detected by the pressure sensing element internally within the implant.