Towards Improving Biocompatibility in Implantable Monitoring

The encapsulation of electronic systems to be implanted in the human body has to ensure a hermetic seal that prevents the ingress of moisture, potentially leading to corrosion and failure of the implant. Moreover, the packaging materials have to be selected to minimize the risk of an adverse reaction of the organism to the foreign object.The focus of this PhD is the development of advanced packaging techniques for flexible and stretchable sensing implants. The efficient combined use of different polymeric materials allows to fabricate devices with mechanical properties comparable to the ones of soft body tissues and organs.The materials employed and their mechanical properties can be tuned to the specific application to ensure its biocompatibility.The following applications will be explored: an intravascular pressure sensor for direct contact with blood, epicardial and endocardial accelerometers for the assessment of heart contractility and a stretchable interconnect for a bladder monitoring device.

Publication year:2019