A mixer valve (1) comprises a body (5) extending in a first direction between a front end and a rear end. The body (5) defines a volume (5a); a thermostatic cartridge (15) is received in the volume (5a), and a diaphragm valve (21) is received in the volume (5a) between the thermostatic cartridge (15) and the rear end of the body (5). The diaphragm valve (21) is operable in response to actuation of a push operated control member (23) to control flow of water from the mixer valve (1).

The invention relates to a system for treating blood, which includes a single cassette capable of carrying out the various CRRT treatments.

A method of controlling flow through a flexible tube includes providing a pinch clamp mechanism including a pinching element and a pinching surface configured to apply a force on the flexible tube when the flexible tube is positioned between the pinching element and the pinching surface. The method also includes displacing the pinching element relative to the pinching surface with a mechanical drive unit and biasing the pinching element toward the pinching surface with a spring.

A valve device which improves the operability of a valve for opening and closing a flow path. The valve device includes a valve, an actuator, an actuator support member, an operating portion, and a threaded member wherein the valve is able to open and close a fluid path in a valve body having a fluid inflow passage and a fluid outflow. The actuator displaces the valve between an open position and a closed position. The actuator support member operatively supports the actuator so that the actuator is able to be driven. The operating portion drives the actuator. The threaded member is threadedly engaged with the actuator.

A fixed lever and pin assembly may include a lever body having a front end, a back end, and an arm connecting the front end and the back end. The front end of the lever body may be operatively coupled to a control element of a regulator. The arm may be adapted to operatively couple to an actuator of a regulator. A pin may be fixed to the front end of the lever body and may be disposed through the front end in a direction perpendicular to first and second parallel sides of the lever body. The fixed lever and pin assembly may be an integrated piece and the pin may prevent the lever body from moving independently from the pin.

A lever assembly for a flow regulator includes a damper to reduce unwanted movement of the lever in an opening and closing direction. The damper includes one or more resilient spring members that squeeze the lever with an amount of force sufficient to reduce unwanted pivoting of the lever without preventing the lever from pivoting in response to control movements of an actuator adapted to actuate the lever.