It's not what you first thought it was...
...trawling eBay for Whovian bargains, my eye was caught by an entry which ran as follows:
Blood and Justice: The 17th Century Parisian Doctor Who Sounds interesting - another bit of canon that I had been unaware of, I thought. But then I checked out the full listing:
The 17th Century Parisian doctor who made blood transfusion history...Ah well, that explains it. (That phrase "made blood transfusion history" is odd, isn't it? Makes it sound like he had it abolished!)
In 1667 a Parisian doctor by the name of Jean-Baptiste Denis performed an operation that had never previously been attempted - he transfused blood into another human being.