I think the anesthesiologist was saying a "bier block". Here's some info-
"
This block is done using a large blood pressure cuff on the affected extremity. An IV is started in the affected extremity. The extremity is elevated, and wrapped tightly with an elastic wrap. This forces most of the blood above the cuff. The cuff is inflated and then the medication is injected into the IV. This medicine is absorbed by the nerve endings in the area below the cuff. This medicine is a combination of local anesthetic (numbing medicine) and a medication to slow or stop the pain impulses sent from your painful extremity. The goal of this is to reduce your pain. You will have an IV started and be connected to a BP and EKG monitor."

This kind of anesthesia is used for crps. I'm not in the medical field and haven't had one so I would suggest you do a web search on "bier block".