Abstract: A system provides non-contact communication between a controller and a medical device. The control signal may be a wirelessly transmitted control signal, such as a wireless radiofrequency signal and/or an optical or acoustic signal, for example. An interface device is provided that may be a remote controller or switch that may be used by a user, such as a health care practitioner (HCP), in connection with navigating and activating screens of a dialysis machine during a dialysis treatment without requiring the HCP to physically contact the dialysis machine. With the described system, the HCP does not need to re-glove each time a change is made to an on-going dialysis treatment when interfacing with a graphical display of the dialysis machine.

Abstract: According to at least one example embodiment, a system of monitoring blood leaks during hemodialysis therapy includes a wetness sensing device and a hemodialysis machine. The wetness sensing device is configured to transmit information wirelessly, the information being indicative of an absence of a liquid or a presence of a liquid. The hemodialysis machine includes, or is coupled to, a wireless receiver having two or more antennas. Signals received at the two or more antennas are decoded at the wireless receiver. If decoded signals indicate a detected wetness, the hemodialysis machine is caused to halt blood flow in and out of the machine and generate an alarm.