
History of epidural needles and catheters
History of epidural needles and catheters from caudal access and loss of resistance to Tuohy, Curbelo and modern catheter design.

History of epidural needles and catheters from caudal access and loss of resistance to Tuohy, Curbelo and modern catheter design.

Alberto Gutiérrez (1892–1945), Argentine surgeon who described the epidural “hanging drop” sign (1933) and founded Argentina’s anaesthesia journal.