A medical catheter control valve includes a valve body defining a fluid channel and a single open-end hole extended across the fluid channel, and a click-on mechanism consisting of a plunger unit with a through hole and a spring member and mounted in the single open-end hole. When click the plunger unit, the plunger unit is shifted to keep the through hole in alignment with the fluid channel for allowing a fluid to pass through the fluid channel. When push back the plunger unit, the through hole is deviated from the fluid channel and the fluid channel is blocked. Thus, the medical catheter control valve can be conveniently controlled with one single hand.

Disclosed herein is a cell harvesting instrument suitable for concentrating cells from a source suspension of cells and/or washing said cells, the instrument comprising: a housing for accommodating mechanical elements including at least one fluid pump, at least one valve; and a processing kit removably insertable into the housing, said kit including a generally flat frame having or supporting plural sealed fluid paths arranged in a generally flat plane and such that fluids in the paths do not contact said mechanical elements, wherein at least portions of the fluid paths comprise flexible tubes, the outer surfaces of which are manipulateable by the or each fluid pump, to provide fluid flow in one or more of the paths and/or by the or each valve to restrict fluid flow in one or more of the paths. In an embodiment, the kit comprises also a fluid processing reservoir and a filter suitable for separating cells from fluid in said paths. A transfer mechanism for moving and weighing the fluid processing reservoir is disclosed also.

A pinch valve may use a spring force to close a collapsible tube at a pinch point, and may open with a cam mechanism, which may be controlled using an electric motor. The open and closed positions of the pinch valve may be stable without the use of continuing electrical energy, and electrical energy may be consumed during a change between positions. One arrangement may use multiple tubes in a circular arrangement with a cam that may operate one or more of the valves at a time. The cam mechanism may be driven by an electric motor.

A medical catheter control valve includes a valve body defining a fluid channel and a single open-end hole extended across the fluid channel, and a click-on mechanism consisting of a plunger unit with a through hole and a spring member and mounted in the single open-end hole. When click the plunger unit, the plunger unit is shifted to keep the through hole in alignment with the fluid channel for allowing a fluid to pass through the fluid channel. When push back the plunger unit, the through hole is deviated from the fluid channel and the fluid channel is blocked. Thus, the medical catheter control valve can be conveniently controlled with one single hand.

A fluid feeding apparatus includes: a first connection portion configured to be connected to a first container in which fluid is stored; a second connection portion configured to be connected to a second container in which fluid is stored; a first flow path that communicates with the first connection portion; a second flow path that communicates with the second connection portion; a resistance portion configured to generate a difference of conduit resistance to cause one of the first flow path and the second flow path to be higher in the conduit resistance than the other flow path; and a switching portion switching a level relationship of the conduit resistance between the first flow path and the second flow path.

A housing having a housing body (100) carries on the outside of one of the side walls (110) a bolt (500) aligned parallel to the lid guide grooves (120) and the lid (200) carries a sleeve (222) fixed to a tab (220) projecting over the upper edge of the corresponding side wall (110) of the housing body (100) and aligned coaxially with the bolt (500). The sleeve (222) engages around the bolt (500) to form an axially and rotationally movable sliding bearing.

A multi-tubing pinch valve assembly including a receiving space defined between a pinch protrusion and tubing contact body. The multi-tubing pinch valve assembly is moveable between a retracted state and an extended state. In the extended state, multiple tubes disposed in the receiving space are pinched, restricting flow therethrough. In the retracted state, multiple tubes are capable of being loaded into and/or out of the receiving space.

An apparatus comprising a conduit clamping device with a closing mechanism for closing and opening passage of fluid or air in a flexible conduit is disclosed. The apparatus comprises a movable arm or disk that is connected to a manipulation arm or a knob; a conduit in form of a tube, that is laid flat against an abutment or protrusion; and a guide structure that constrains the movable arm or disk between the guide structure and the tube and being designed such that movement of the arm or disk will control the compression of the tube.

A pressure control pinch valve for a flexible tube, includes a fixed support cooperating with one side of a flexible tube to be controlled, a dynamic pressure arranged on the opposite side to the fixed support and able to pinch the tube in order to control the pressure therein, the dynamic pressure being composed of a rotating roller that is mounted so as to rotate about an off-center axis with respect to the center of the roller and is provided with a peripheral contact surface exerting a force directly on the tube.

A multi-tubing pinch valve assembly including a receiving space defined between a pinch protrusion and tubing contact body. The multi-tubing pinch valve assembly is moveable between a retracted state and an extended state. In the extended state, multiple tubes disposed in the receiving space are pinched, restricting flow therethrough. In the retracted state, multiple tubes are capable of being loaded into and/or out of the receiving space.