A method comprising: establishing a wireless connection between a dialysis machine (102, 102a-c) and a dialysis machine accessory device (101, 101a-d, 350a-b), wherein the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) are connected to a network, wherein the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) each have a wireless identifier (317, 317a-c) and a label (319, 319a-c) reflecting the use of the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b), respectively, comprising: receiving, by the dialysis machine (102, 102a-c), via a Near Field Communication protocol, the wireless identifier (317, 317a-c) unique to the dialysis machine accessory device (101, 101a-d, 350a-b) and the label (319, 319a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b), wherein the dialysis machine (102, 102a-c) receives the wireless identifier (317, 317a-c) and the label (319, 319a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b) as a result of detecting that the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) are in proximity to each other; and establishing, by the dialysis machine (102, 102a-c), a wireless connection with the dialysis machine accessory device (101, 101a-d, 350a-b) based on the wireless identifier (317, 317a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b) using a communication protocol other than the Near Field Communication protocol, wherein the dialysis machine accessory device (101, 101a-d, 350a-b) is granted permission to control functions of the dialysis machine (102, 102a-c) and deliver data to the dialysis machine (102, 102a-c) using the wireless connection, wherein the dialysis machine (102, 102a-c) uses the wireless identifiers (317, 317a-c) of the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) as nodes of the wireless network, and wherein the labels (319, 319a-c) of the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) determine the type of the wireless connection. receiving, by the dialysis machine (102, 102a-c), via a Near Field Communication protocol, the wireless identifier (317, 317a-c) unique to the dialysis machine accessory device (101, 101a-d, 350a-b) and the label (319, 319a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b), wherein the dialysis machine (102, 102a-c) receives the wireless identifier (317, 317a-c) and the label (319, 319a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b) as a result of detecting that the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) are in proximity to each other; and establishing, by the dialysis machine (102, 102a-c), a wireless connection with the dialysis machine accessory device (101, 101a-d, 350a-b) based on the wireless identifier (317, 317a-c) of the dialysis machine accessory device (101, 101a-d, 350a-b) using a communication protocol other than the Near Field Communication protocol, wherein the dialysis machine accessory device (101, 101a-d, 350a-b) is granted permission to control functions of the dialysis machine (102, 102a-c) and deliver data to the dialysis machine (102, 102a-c) using the wireless connection, wherein the dialysis machine (102, 102a-c) uses the wireless identifiers (317, 317a-c) of the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) as nodes of the wireless network, and wherein the labels (319, 319a-c) of the dialysis machine (102, 102a-c) and the dialysis machine accessory device (101, 101a-d, 350a-b) determine the type of the wireless connection.