Potts-Smith Dressing Forceps — Paediatric Cardiac Pattern

Potts-Smith Dressing Forceps — Paediatric Cardiac Heritage

Willis John Potts, head of surgery at the Chicago Children’s Memorial Hospital from 1946 and the surgeon who in that same year performed the first descending-aorta-to-pulmonary-artery anastomosis (the Potts shunt) for cyanotic congenital heart disease, designed the dressing forceps that bears his joint name with Carl Holmes Smith for the delicate vascular work that paediatric cardiac surgery demanded. The Potts-Smith forceps is built lighter and finer than the general-surgery Adson — sized for the small-vessel anastomosis and the thin paediatric tissue planes that cannot tolerate routine surgical-grip force.

The paediatric vascular-surgery problem

An infant pulmonary-artery wall is approximately 0.3 mm thick — one-tenth the thickness of an adult femoral artery wall. Standard dressing forceps tear this tissue at routine grip pressure; a specialised lighter forceps is required. Potts’s solution was a forceps with a longer, slimmer jaw and a softer spring action that delivers controlled grip well below the standard Adson’s force. The same instrument geometry serves adult thoracic vascular surgery on similarly thin tissues (intrathoracic veins, pericardial structures).

The Potts shunt legacy

The descending-aorta-to-PA Potts shunt was the first reliable palliation for tetralogy of Fallot and saved thousands of children before total-correction surgery became routine in the 1960s. The forceps is one of several Potts instruments still in production for cardiac-surgery trays worldwide.