| http://www.w3.org/ns/prov#value | - tively to a ventricular catheter and to a drainage catheter for said fluid, a valve member including a ball, mounted on a seat within said chamber at the opening of said inlet duct, a curved spring blade fitting closely against the side wall of said chamber and urging the ball against said seat, a magnetic moving member movable in rotation about a vertical axis under control from outside the valve
|
