A modular device for attachment to the skin of a patient comprising: a medical device which includes device electrical contacts on a bottom surface of the medical device; a patch laminate including a plurality of layers, the plurality of layers comprising a conductive first layer for establishing a direct contact with the skin; a patch connector, which includes connector electrical contacts in electrical communication with the first conductive layer and establishes an electrical communication path between the skin and medical device contacts and which affixes the medical device in close proximity to the patch laminate, wherein the plurality of layers further comprises an electrical distribution layer which is electrically connected with the connector electrical contacts and with each of a plurality of first electrodes defined in the first conductive layer, and wherein the patch connector includes a generally rigid clip including a clip first surface, and a clip second surface, the clip first surface including extending portions which releasably engage a case of the medical device to hold the connector contacts and the device contacts in electrical communication; the patch connector further: providing a rigid patch area in a center of the patch laminate, and a flexible outer area of the patch laminate, and comprising a layer of a Z-axis conductive elastomer material configured to be compressed as the clip is snapped onto the medical device and to provide an electrical connection between the medical device contacts and the connector electrical contacts. a medical device which includes device electrical contacts on a bottom surface of the medical device; a patch laminate including a plurality of layers, the plurality of layers comprising a conductive first layer for establishing a direct contact with the skin; a patch connector, which includes connector electrical contacts in electrical communication with the first conductive layer and establishes an electrical communication path between the skin and medical device contacts and which affixes the medical device in close proximity to the patch laminate, wherein the plurality of layers further comprises an electrical distribution layer which is electrically connected with the connector electrical contacts and with each of a plurality of first electrodes defined in the first conductive layer, and wherein the patch connector includes a generally rigid clip including a clip first surface, and a clip second surface, the clip first surface including extending portions which releasably engage a case of the medical device to hold the connector contacts and the device contacts in electrical communication; the patch connector further: providing a rigid patch area in a center of the patch laminate, and a flexible outer area of the patch laminate, and comprising a layer of a Z-axis conductive elastomer material configured to be compressed as the clip is snapped onto the medical device and to provide an electrical connection between the medical device contacts and the connector electrical contacts. providing a rigid patch area in a center of the patch laminate, and a flexible outer area of the patch laminate, and comprising a layer of a Z-axis conductive elastomer material configured to be compressed as the clip is snapped onto the medical device and to provide an electrical connection between the medical device contacts and the connector electrical contacts.