Hemofilters for in vivo filtration of blood are disclosed. The hemofilters disclosed herein provide an optimal flow of blood through the filtration channels while maintaining a pressure gradient across the filtration channel walls to enhance filtration and minimize turbulence and stagnation of blood in the hemofilter.

Modular intravenous (IV) assemblies are provided. The modular IV assembly includes a drip chamber having a body and an inlet connector, a base housing coupled directly to a base portion of the drip chamber, the base housing having an inlet port in fluid connection with the drip chamber and a flow path cavity in fluid connection with the inlet port and a flow control assembly coupled directly to a first portion of the base housing. Any of a filter assembly, an anti-run dry member, a check valve and an air vent assembly may be included in the modular IV assembly. IV sets and methods of use are also provided.

Modular intravenous (IV) assemblies are provided. The modular IV assembly includes a drip chamber having a body and an inlet connector, a base housing coupled directly to a base portion of the drip chamber, the base housing having an inlet port in fluid connection with the drip chamber and a flow path cavity in fluid connection with the inlet port and a flow control assembly coupled directly to a first portion of the base housing. Any of a filter assembly, an anti-run dry member, a check valve and an air vent assembly may be included in the modular IV assembly. IV sets and methods of use are also provided.

A flow selector having features for controlling the flow rate of a fluid over a continuous range of flow rates is provided. In particular, a flow selector including a flow rate selection mechanism is provided, where the flow rate selection mechanism provides more precise control of the fluid flow rate. A flow selector comprising a needle valve for controlling the flow rate of a fluid over a continuous range of flow rates also is provided.

Systems and method for improving fluid flow during medication delivery procedures, such as infusions or pooling, are provided. A spike is punctured though a seal in a container. A liquid substance is drained from said container through a pathway in the spike. The spike includes a channel which permit sliding movement of a snorkel for elevation above the liquid substance to permit air to enter the container from outside without foaming the liquid substance.

Systems and method for improving fluid flow during medication delivery procedures, such as infusions or pooling, are provided. A spike is punctured though a seal in a container. A liquid substance is drained from said container through a pathway in the spike. The spike includes a channel which permit sliding movement of a snorkel for elevation above the liquid substance to permit air to enter the container from outside without foaming the liquid substance.

The disclosure provides improved vent filters useful in single-use in-line transfusion systems. In a first aspect, the disclosure provides filter comprising (i) a layer comprising a fluoropolymer membrane and (ii) a layer comprising at least two air-permeable thermoplastic polymeric layers, the air-permeable thermoplastic polymeric layers comprised of a first polymeric layer and a second polymeric layer, wherein the first polymeric layer is in bonded contact with the fluoropolymer membrane, possesses a melting point of about 95° C. to about 180° C., and wherein the second polymeric layer is in bonded contact with the first polymeric layer and has a melting point of about 220° C. to about 265° C. These filters exhibit excellent bonding strength between the various layers while preserving a considerable amount of the original fluoropolymer membrane air flux.

The disclosure provides improved vent filters useful in single-use in-line transfusion systems. In a first aspect, the disclosure provides filter comprising (i) a layer comprising a fluoropolymer membrane and (ii) a layer comprising at least two air-permeable thermoplastic polymeric layers, the air-permeable thermoplastic polymeric layers comprised of a first polymeric layer and a second polymeric layer, wherein the first polymeric layer is in bonded contact with the fluoropolymer membrane, possesses a melting point of about 95° C. to about 180° C., and wherein the second polymeric layer is in bonded contact with the first polymeric layer and has a melting point of about 220° C. to about 265° C. These filters exhibit excellent bonding strength between the various layers while preserving a considerable amount of the original fluoropolymer membrane air flux.

The cover for a drug delivery tube device according to a disclosed embodiment is configured to define an insertion space having an opening formed on a lower side thereof so that the drug delivery tube device having a capillary flow path configured to allow a drug solution to flow therethrough is capable of being inserted into the opening. The cover includes a cover body extending along a circumference of the insertion space around a center axis perpendicular to an upper-lower direction.

A device for coupling to a fluid connector of an IV administration set to resist contamination of the fluid connector and IV administration set and permit priming of the IV administration set. The device including a cover body having a cavity for receiving the fluid connector, a priming passage for priming fluid from the IV administration set through the fluid connector, and a coupling tab extending from the cover body, the coupling tab permitting the cover body to be coupled to a length of an IV line or other portion of the IV administration set to resist contamination and permit priming of the IV administration set.