Centering interface

Abstract

A centering interface is arranged between a tubular element mounted in a device, specifically a receiving tube or quiver, for a suction rod of a dialysis machine, and a movable element preferably guided pivotally about an axis, specifically a front plate of the dialysis machine. Centering surfaces are mated between the tubular element mounted in the device and the movable element. When a preferably sealed joint of the interface is manufactured, the tubular element mounted in the device can be moved in the axial direction against the force of a biasing spring during the movement of the movable element and the accompanying approach of the centering surfaces, while its guiding support allows a movement that permits the centering surfaces to be brought into the joining position with centering surface axes aligned with each other free of constraint forces.

Dependencies are inferred from the claim text.