Abstract: The present disclosure relates to a dialysis machine, external medical equipment and to methods for establishing an authenticated connection between a dialysis machine and external medical equipment. The dialysis machine is caused to establish a short-range wireless connection between the dialysis machine and external medical equipment. A first shared key is associated with the short-range wireless connection. The dialysis machine is further configured to obtain a second shared key generated using the first shared key and to generate a first signature, using the obtained second shared key. The dialysis machine is further configured to send, to the external medical equipment, an authentication request comprising the generated first signature and to receive in return an authentication accept comprising a second signature. Furthermore, the dialysis machine is configured to verify the authenticity of the external medical equipment using the second signature.

Abstract: A plug lock assembly is provided. The assembly comprises a sleeve member to which a detent catch member, a cylinder member, and a latch member are coupled. The detent catch member engages a face wall portion of the sleeve member through cooperating cambered surfaces such that the detent catch member may be placed into and out of its locking position. The detent catch member has formed thereon an open cambered groove section which is engaged by a locating pin extending from the sleeve member for limiting the axial displacement of the detent catch member in at least one direction. This reinforces the lock assembly against compromise of its locking function.