Packaging of a multifunctional implantable heart monitoring device

This paper describes recent improvements of a myocardial accelerometer device, which can be used to perform continuous monitoring of heart activity with high specificity and sensitivity. The device is specified to be used for patients undergoing coronary bypass graft surgery. The improved device can reduce the complexity of implantation experienced with the former generation of sensors. A built-in function enabling temporary pacing was also integrated. Besides being an implantable accelerometer sensor, the device can pace the heart and sense the electrical signals when connected to an external pulse generator. Compliance tests for implantable medical device were carried out to prove the essential requirements set by the International Electrotechnical Commission.