Abstract: A remote control sub-system for use in controlling a fluid circuit wherein the fluid circuit includes at least one tubing segment which is operatively engaged with a flow control device such as a pump so that the pump is operable to force fluid to flow in and through the tubing segment. The remote control sub-system has a remote control device with a switching member operatively connected thereto; the remote control device being disjoined from the flow control device yet being disposed in operative communication therewith such that activation of the switching member is effective to turn on or off the flow control device to start or stop the flow of fluid through the tubing segment.

Abstract: A remote control sub-system for use in controlling a fluid circuit wherein the fluid circuit includes at least one tubing segment which is operatively engaged with a flow control device such as a pump so that the pump is operable to force fluid to flow in and through the tubing segment. The remote control sub-system has a remote control device with a switching member operatively connected thereto; the remote control device being disjoined from the flow control device yet being disposed in operative communication therewith such that activation of the switching member is effective to turn on or off the flow control device to start or stop the flow of fluid through the tubing segment.

Abstract: A blood treatment apparatus having a circuit for circulating blood outside the body and designed to be connected to a patient via a single needle, including a blood treatment device such as a heamodialyzer, pumps for causing blood to flow through the circuit, a first blood expansion chamber located in the circuit upstream of the blood treatment device for temporarily storing a volume of blood to be treated, a second blood expansion chamber located downstream of the blood treatment device for temporarily storing a volume of treated blood, first and second pressure regulators, connected to the first and second blood expansion chambers, for adjusting pressure in the blood expansion chambers, and a controller for interacting with the regulators to maintain a substantially constant pressure in each of the first and second chambers during a treatment session.