Implantable MEMS acceleration sensor for heart monitoring recent development and outlook

In this paper a new design for an implantable MEMS acceleration sensor for heart monitoring is described. Based on one of the smallest commercially available accelerometers we have developed a miniaturized system that allows for implantation into the heart muscle and to be used in closed chest application. The paper also assesses the mechanical strength of different cable to substrate bonding methods. As a result the built system is ready for animal experiments which are essential to verify if the presented design is appropriate.