A pump comprises a body portion defining a hollow interior cavity, an inlet port, and an outlet port, and a plunger portion. A distal end of a first outlet hose is coupled to the outlet port, and a proximal end of the first outlet hose is coupled to an inlet port of a diverter valve. A first output assembly is coupled a first outlet port of the diverter valve, and a proximal end of the second outlet hose is coupled to a second outlet port of the diverter valve. A distal end of the second outlet hose is coupled to a second output assembly. A cover assembly is coupled to the diverter valve and configurable between a first position and a second position. In the first position, the cover assembly prevents access to the first output assembly. In the second position, the cover assembly allows access to the first output assembly.

A clamping device includes at least one clamp-in unit for clamping in at least one flexible-tube delivery element of a delivery device, wherein, for a delivery of a medium, a drive force is exertable on said flexible-tube delivery element by a drive unit of the delivery device, when the flexible-tube delivery element is arranged in the clamp-in unit, the clamp-in unit is configured to clamp the flexible-tube delivery element so that it is curved as a whole, and includes at least one clamping element, which includes a convex abutment element realizing an abutment surface for the flexible-tube delivery element, wherein the clamp-in unit includes at least the clamping element, which has at least one angled clamping surface, and which includes at least one adhesive element that is arranged on the clamping surface of the clamping element.

A longitudinal stretching based wave pumping system and corresponding methods are described. A stretchable tube is configured to hold a fluid. An actuator is coupled to the tube. The actuator is configured to longitudinally stretch and release the stretchable tube to create waves on the stretchable tube and within the fluid that propagate and reflect at one or more reflection sites along the stretchable tube to create wave pumping, which drives the fluid and generates net flow in a flow direction.

A longitudinal stretching based wave pumping system and corresponding methods are described. A stretchable tube is configured to hold a fluid. An actuator is coupled to the tube. The actuator is configured to longitudinally stretch and release the stretchable tube to create waves on the stretchable tube and within the fluid that propagate and reflect at one or more reflection sites along the stretchable tube to create wave pumping, which drives the fluid and generates net flow in a flow direction.

A vacuum pump includes a hollow container that has a vacuum port and internal chamber walls. The vacuum port opens to an exterior of the container and the chamber walls define chambers that are in fluid communication with the vacuum port. There are flexible bladders disposed in the chambers. The flexible bladders include vents that open through the container to the exterior. A plunger in the container includes arms that extend into the chambers such that each of the flexible bladders is situated between one of the arms and one of the chamber walls. The plunger is moveable between a home position and an upstroke position to compress and deflate the flexible bladders via the vents and thereby change the volume of the flexible bladders. The change in the volume draws a vacuum through the vacuum port.

An inflation needle includes a first end for insertion into an inflatable object, a second end for connection to a pump and an elongated member having a conduit for air therethrough and connecting the first end and the second end, where at least a portion of the elongated member includes a flexible portion. The flexible portion may include a flexible bellows.

An inflation needle includes a first end for insertion into an inflatable object, a second end for connection to a pump and an elongated member having a conduit for air therethrough and connecting the first end and the second end, where at least a portion of the elongated member includes a flexible portion. The flexible portion may include a flexible bellows.

Provided are a flow passage module which can achieve complete liquid substitution in a circulating flow passage with a simple structure, and a cell culture apparatus using said flow passage module. A flow passage module comprises: a flexible branching section which is provided with a first branching flow passage connected with an inflow passage for a fluid, a second branching flow passage connected with an outflow passage, a third branching flow passage connected with an entry-side end part of a circulating flow passage, and a fourth branching flow passage connected with an exit-side end part of the circulating flow passage, and which enables the branching flow passages to be communicated with each other; and a communication state switching part which has opening/closing members for closing and opening the desired branching flow passage from among the plurality of branching flow passages.

Provided are a flow passage module which can achieve complete liquid substitution in a circulating flow passage with a simple structure, and a cell culture apparatus using said flow passage module. A flow passage module comprises: a flexible branching section which is provided with a first branching flow passage connected with an inflow passage for a fluid, a second branching flow passage connected with an outflow passage, a third branching flow passage connected with an entry-side end part of a circulating flow passage, and a fourth branching flow passage connected with an exit-side end part of the circulating flow passage, and which enables the branching flow passages to be communicated with each other; and a communication state switching part which has opening/closing members for closing and opening the desired branching flow passage from among the plurality of branching flow passages.

A pump includes a conduit defining an inner volume and formed from a flexible material, the conduit movable between an expanded state and a relaxed state. A coil is disposed within the conduit and includes an outer diameter that is approximately equal to an inner diameter of the conduit, the coil substantially maintaining its outer diameter when the conduit is moved between the relaxed state and the expanded state. A manifold is in fluid communication with the inner volume and is operable to permit fluid to enter the inner volume in a first mode and expel fluid from the inner volume in a second mode.