You can have a look at the scope and contents of particular journals like:

http://www.journals.elsevier.com/artificial-intelligence-in-medicine/

Techniques like pattern recognition and machine learning, for example, are increasingly being used in Biomedicine to extract meaningful information from bio-medical data which is usually full of noise and biological variability. 

Check out so-called "expert systems" designed and to a degree implemented for medical diagnosis and treatment (eg MYCIN, CASNET/Glaucoma). Also check out the software used to scan 24hr ECGs etc for anomalies -- probably has bits of AI in it.

And maybe don't forget that any emergency ambulance that uses SatNav is using AI...

JIm

ALSO -- google/checkout "Addenbrooke's computer simulation manikins" which will find you sites that report ongoing development of simulated patients for training student doctors and nurses -- partly AI now and can only get more so

Jim

Mainly, support vector machine for medical text now.

AI applications in Bio-Medical field are pretty wide spread and cover diffent kind of technologies like expert systems, pattern recognition or artificial neural networks for modeling, simulation and classification.

One prime application of Artificial Intelligence based Brain Computer Interface in the field of Biomedics include Rehabilitation Robotics which is mainly concerned with restoring mobility in partially or fully tetraplegic patients. Of course, there are many more examples.

Please Google "Bio-medical applications using AI or soft computing tool", you will be getting many contributions.