The present disclosure relates to a system, comprising: an implantable medical device, wherein the implantable medical device comprises an ultrasound transducer configured to receive an ultrasound wave, a packaging, wherein the packaging encloses an internal space, wherein the implantable medical device is arranged in the internal space, and a device mount arranged in the internal space, wherein the implantable medical device is fastened to the device mount in a releasable fashion, and wherein the device mount contacts an inner side of a portion of the packaging and forms an acoustic coupler configured to pass an ultrasound wave applied to an outer side of the portion of the packaging to the ultrasound transducer of the implantable medical device.
