Getting rid of cables is  a concern in the medical field, as it gives healthcare workers more freedom to position the equipment in the OR.
Bluetooth is a secure and robust technology, it is ideal for the purpose and presently there is an increasing number of medical solutions where Bluetooth is used as the wireless interface.

Wireless communication is becoming even more attractive as the Bluetooth Special Interest Group (SIG) has developed a medical device profile for Bluetooth, making bluetooth pairing between medical devices seemless.

The Bluetooth Special Interest Group (SIG) have announced the Medical Device Profile for Bluetooth
The rapidly expanding health market is increasingly making use of Bluetooth wireless technology to connect devices. Most of these connections are between a computing device (e.g. home health station, cellular phone, telemedicine device, computer or PDA ) and one or more Bluetooth enabled devices (e.g. medical, health and fitness sensors such as heart rate, blood pressure, glucose, weight, and oximeters etc).
 
Check out the Q1 issue of SIGnature and see how Bluetooth technology is helping NASA monitor astronaut health.