Abstract: An apparatus and method of assembling a syringe pump for accurately dispensing a fluid from a syringe. The syringe pump has a frame having a valve assembly connectable to the syringe. A linear rail is disposed in and connected to the frame, and a travel block is disposed within the frame and slidably connected to the linear rail. A connector is connected to the travel block and connectable to the syringe. A power screw having a first end rotatably supported by bearings is disposed within the frame and has a free second end opposite the first end of the power screw wherein the travel block is threadably connected to the power screw. The power screw is rotatably driven to effectively drive the travel block and the connector linearly along the linear rail thereby dispensing the fluid from the syringe.

Abstract: A dual syringe fluid pump (100, 200, 300, 400) includes a motor (110, 210, 310, 410) with a rotatable shaft (112, 212, 312, 412), a first syringe (120a, 220a, 320a, 420a) with a first syringe plunger (122a, 222a, 322a, 422a) coupled to the rotatable shaft (112, 212, 312, 412), and a second syringe (120b, 220b, 320b, 420b) with a second syringe plunger (122b, 222b, 322b, 422b) coupled to the rotatable shaft (112, 212, 312, 412). The motor (110, 210, 310, 410) rotates the rotatable shaft (112, 212, 312, 412) to simultaneously move the first syringe plunger (122a, 222a, 322a, 422a) and the second syringe plunger (122b, 222b, 322b, 422b) and at least one of the syringes (120a,b, 220a,b, 320a,b, 420a,b) is adapted to convert the rotation of the rotatable shaft (112, 212, 312, 412) to a linear movement of at least one of the syringe plungers (122a,b, 222a,b, 322a,b, 422a,b).

Abstract: A fluid metering system having a syringe assembly attachable to a syringe dock is provided. The fluid metering system also comprises a plunger assembly with the syringe assembly that has a plunger configured to aspirate a fluid into the syringe assembly and/or dispense a fluid contained in the syringe assembly. A driving portion of a syringe drive with the fluid metering system is attachable to the plunger assembly, wherein the driving portion is configured to actuate dispensing and/or aspirating of the fluid. A slot with the syringe dock is configured to accept the syringe assembly, and an end cap with the syringe assembly slidingly engages the slot.

Abstract: A dual diaphragm valve (100) includes a valve bore (40) extending between a first seal face (55) and a second seal face (56). A first port (36) and a second port (38) are in fluidic communication with the valve bore (40) through the first seal face (55) and the second seal face (56). The dual diaphragm valve (100) further includes a first diaphragm (47) positioned substantially at the first seal face (55), a second diaphragm (49) positioned substantially at the second seal face (56), and a valve plunger (24) configured to move substantially reciprocally in the valve bore (40). The first diaphragm (47) seals the first seal face (55) when the valve plunger (24) moves toward the second seal face (56) and the second diaphragm (49) seals the second seal face (56) when the valve plunger (24) moves toward the first seal face (55).