In one sense the question is rather odd, since bloodless medicine actually predates the use of blood. Indeed, it was not until the early 20th century that transfusion technology had advanced to the point where it was routinely used.
लेकिन, पिछले बीस - तीस सालों में कुछ डॉक्टरों ने बिना - खून सर्जरी करने के तरीके को काफी मशहूर किया है ।