Some medical devices become immensely more valuable if you can make them mobile. Moving a modern medical cart from room to room is far more efficient than moving the patients and their beds, so long as you can still maintain reliable network connections. Other devices, like EKG monitors and X-Ray machines, call for less mobility but still require dependable wireless data connectivity.
One possible answer would be Wi-Fi. Wi-Fi is standards-based, and will interoperate reliably with multiple vendor products. Wi-Fi networks are widely deployed in hospitals and can be used to connect remote medical devices to networks, letting them share data with other network nodes.
Download PDF: Wireless Technology for Modern Health Care