A fluid injection device having a body contacting an injection site (SI); fluid reservoirs (210); an injection needle (120) that injects the contents of the reservoir(s) (210); and a respective priming needle (125) associated with each reservoir (210) for penetrating into the reservoir (210) before dispensing the fluid. Each reservoir (210) includes a tube (145) connected at one end to a priming needle (125), and at the other end to the injection needle. The device includes a reservoir selector for selecting one or more reservoirs (210), the contents of which are dispensed during the next actuation. The selector has a rotary member (132, 135) with a cam (1320, 1350) to co-operate with the tubes (145) so as to open or close the flow of fluid through each tube (145).

An improved intravenous infusion set (10) to administer delivery of intravenous fluid to a patient, said intravenous infusion set (10) comprising: a drip chamber (12), a flexible infusion line (30) of sufficient length for fluid delivery to the patient and connected the drip chamber (12); a roller clamp (34) arranged movably along the length of the flexible infusion line (30), an air vent (18) with a cap arranged at the distal end (54) of the drip chamber (12) for management of air in the infusion system, said drip chamber (12) has a spike (14) on a distal end (54) and an infusion fluid outlet (20) at a proximal end (52) of the drip chamber (12), a fluid flow regulating member (36) sealed within the drip chamber (12) over said infusion fluid outlet (20) and wherein said infusion fluid outlet (20) configured to house a flow path adapter (22) which facilitates in administering continuous air free delivery of intravenous fluid to patients under gravitational pull.

Flow stop assemblies are described herein. A flow stop assembly configured to control flow through a tubing includes a flow stop base and a pincher. The flow stop base includes a base wall, at least one pincher guard, a tubing guide, a pincher recess, a pincher protrusion, and a base extension. The pincher is movable relative to the base extension and is configured to move between a flow position and an occlusion position, wherein in the flow position the pincher surface is spaced apart from the pincher protrusion and in the occlusion position, the pincher surface is disposed adjacent to the pincher protrusion and is configured to obstruct flow through the tubing.

The present invention provides a semiautomatic syringe with improved safety including: a main body; a receptacle which is installed at one side of the main body, receives therein a set amount of infusion solution, and has a set pressure; an infusion solution tube which extends by a set length while penetrating the main body, connects with the receptacle, and provides a passageway for moving the infusion solution; a protective cover which is installed at the other side of the main body, connects with the infusion solution tube, extends by a set length, and has a hollow portion; an injection needle which is provided in the protective cover and has an injection hole formed to discharge the infusion solution, which moves through the infusion solution tube, to the outside; and a flow rate adjusting member which is installed in the main body and adjusts a movement amount of the infusion solution by opening and closing the passageway of the infusion solution tube, in which the injection needle is provided in a state of being inserted into the hollow portion of the protective cover, and a part of the injection needle protrudes to the outside of the protective cover by a change in pressure in the receptacle when the passageway of the infusion solution tube is opened, thereby achieving a more convenient, economic, and safe usage.

A dual lumen IV administration set includes a first lumen having an inner diameter of a first value. A second lumen is paired with the first lumen, and the second lumen has an inner diameter of a second value that is greater than the first value. A flow merger merges flow output from a distal end of the first lumen and flow output from a distal end of the second lumen to form a single flow output in an exit lumen. An injection port intersects the first lumen, thereby providing injection access to flow therethrough, prior to merging with the flow output of the second lumen.

A clamp arrangement for retaining a flexible tube (18) during operation of a roller pump (10) for pumping fluid, the clamp arrangement comprising a pair of rotatable bobbins (24A, 24B, 26A, 26B) mounted adjacent to each other. Each bobbin (24A, 24B, 26A, 26B) has a tapered groove (30), formed partially around a cylindrical surface of the bobbin (24A, 24B, 26A, 26B), and counter rotation of the bobbins (24A, 24B, 26A, 26B) clamps the tube 18 between the bobbins (24A, 24B, 26A, 26B) in the tapered grooves (30). The clamp arrangement allows tubes of different shapes and diameters to be securely held without overly deforming the tube.

The present invention relates to a medicinal fluid flow rate control apparatus and a medicinal fluid injector including the medicinal fluid flow control apparatus. The medicinal fluid flow rate control apparatus includes: an operation knob being able to be turned; a plurality of medicinal fluid delivery lines each having an elastically deformable tube and arranged such that the tubes are arranged at different heights at a side from the operation knob; a tube support member supporting the tubes; a medicinal fluid converger converging medicinal fluids from the medicinal fluid delivery lines into one stream; and a pipe switch selectively pressing or releasing the tubes to open or block all of the medicinal fluid delivery lines or block some of the medicinal fluid delivery lines, depending on a rotational angle of the operation knob.

The present invention provides a semiautomatic syringe with improved safety including: a main body; a receptacle which is installed at one side of the main body, receives therein a set amount of infusion solution, and has a set pressure; an infusion solution tube which extends by a set length while penetrating the main body, connects with the receptacle, and provides a passageway for moving the infusion solution; a protective cover which is installed at the other side of the main body, connects with the infusion solution tube, extends by a set length, and has a hollow portion; an injection needle which is provided in the protective cover and has an injection hole formed to discharge the infusion solution, which moves through the infusion solution tube, to the outside; and a flow rate adjusting member which is installed in the main body and adjusts a movement amount of the infusion solution by opening and closing the passageway of the infusion solution tube, in which the injection needle is provided in a state of being inserted into the hollow portion of the protective cover, and a part of the injection needle protrudes to the outside of the protective cover by a change in pressure in the receptacle when the passageway of the infusion solution tube is opened, thereby achieving a more convenient, economic, and safe usage.

A clamp for controlling fluid flow through a flexible tube has an electrically powered signal generator which can indicate the state of the clamp (closed or open) and thus indicate the state of fluid flow. Momentary switches controlling the signal generator provide versatility to the clamp. Visual, auditory and haptic signals are generated by the signal generator in response to a particular state of the clamp.

A pump for treating a patient is disclosed that includes a spring-biased plunger biased toward actuation against a tube; a cam shaft configured to actuate the spring-based plunger; a lever actuatable between a closed position and an open position; a shaft coupled to the lever, the shaft having a central axis centrally along the length of the shaft, the shaft coupled to the lever to rotate around the central axis in accordance with actuation of the lever; and a lift cam pivotally coupled to the shaft, wherein the lift cam pivots around a lift cam axis, the lift cam axis of the lift cam is parallel to the central axis of the shaft, and the lift cam engages with the spring-based plunger to lift the spring-biased plunger off of the cam shaft as the shaft rotates in accordance with actuating the lever to the open position.