A check valve includes an upper housing having an inlet of the check valve, a lower housing axially coupled to the upper housing and having an outlet of the check valve, a valve portion cooperatively formed by the upper and lower housings, a passageway extending between the inlet and outlet, a first filter included in the upper housing to limit passage of undesirable matter in fluid flowing through the check valve, a second filter included in the lower housing to limit passage of undesirable matter in fluid flowing through the check valve, each of the first filter and the second filter including a plurality of vertical structures disposed in the valve portion and extending axially and radially in the valve portion, and a valve member positioned in the valve portion to selectively permit fluid to flow through the check valve.

A method of manufacturing a check valve may include forming an upper housing as cylindrical body with (i) an internal surface including an upstream internal surface and a downstream internal surface having a projection and (ii) an external surface, forming a T-shaped filter member and mounting the T-shaped filter member in the internal surface of the upper housing. The method may further include forming a lower housing with a support portion at a central portion thereof, mounting a flexible valve member on the support portion, and coupling the upper housing with T-shaped filter member mounted therein onto the lower housing with flexible valve member mounted therein such that the T-shaped filter member is disposed upstream of the flexible valve member.

Bulbs for use with an IV set are described herein. A bulb includes a bulb body and a filter. The bulb body defines an inlet, an outlet, and a bulb volume in fluid communication with the inlet and the outlet. The filter is in fluid communication with the bulb volume. The filter captures particulate from a flow from the inlet to the outlet. The bulb body is deformable to compress the bulb volume and direct back flow from the bulb volume through the filter, agitating particulate captured in the filter, unclogging the filter and allowing for more flow.

Drip chamber assemblies are described herein. A drip chamber assembly includes a drip chamber and a filter. The drip chamber includes a chamber body defining a chamber volume. The filter is disposed within the chamber volume. The filter includes a folded filter media, which defines an inlet portion of the chamber volume and an outlet portion of the chamber volume. The folded filter media permits inlet flow from the inlet portion of the chamber volume to the outlet portion of the chamber volume. The folded filter media captures particulate from the inlet flow.

In-line filter devices are described herein. An in-line filter device includes an inlet portion, an outlet portion, a first filter housing, a first flow path, and a first filter media. The first filter housing defining a first filter volume. The first flow path is defined between the inlet portion and the first filter volume to provide fluid communication between the inlet portion and the first filter volume. The second flow path is defined between the first filter volume and the outlet portion to provide fluid communication between the first filter volume and the outlet portion. The first filter media is disposed within the first filter volume, wherein the first filter media permits flow from the first flow path to the second flow path and captures particulate from the flow.

A drug delivery system includes a delivery container including a container body adapted to accommodate a drug therein, a supply line, and a flow rate monitor. The delivery container further includes inlet and outlet ports and is constructed from a resilient material that exerts an urging force on the drug to expel the drug from the outlet port. The supply line is operably coupled to the outlet port to deliver the drug to a user. The flow rate monitor is operably coupled to at least one of the delivery container or the supply line and includes a digital controller, a fluid valve operably coupled to the digital controller, and a translating syringe in fluid communication with the fluid valve and operably coupled to the digital controller. The fluid valve, the translating piston, and the digital controller cooperate to regulate a flow rate of the drug.

An external medical device includes a first cartridge bay with a first cartridge port, a second cartridge bay with a second cartridge port, a fluid outlet in fluid communication with the first cartridge port, a fluid pump configured to deliver a therapeutic fluid from a fluid cartridge engaged with the first cartridge port through the fluid outlet in response to fluid outlet control signals, a fluid inlet in fluid communication with the second cartridge port, and a fluid control structure in fluid communication with the fluid inlet to control fluid flow through the fluid inlet.

A method of manufacturing a check valve may include forming an upper housing as cylindrical body with (i) an internal surface including an upstream internal surface and a downstream internal surface having a projection and (ii) an external surface, forming a T-shaped filter member and mounting the T-shaped filter member in the internal surface of the upper housing. The method may further include forming a lower housing with a support portion at a central portion thereof, mounting a flexible valve member on the support portion, and coupling the upper housing with T-shaped filter member mounted therein onto the lower housing with flexible valve member mounted therein such that the T-shaped filter member is disposed upstream of the flexible valve member.

The present invention discloses a sterile PRP separation kit that has compartmentalized container having a cover that allows for a stage-specific exposure of sterile components of the sterile PRP separation kit housed within stage-specific compartments to a non-sterile environment commensurate with a specific stage of operation of a separation process of PRP. The sterile PRP separation kit includes a PRP tube with segregated portals for injection of blood into the PRP tube, aspiration of PRP from the PRP tube, and for maintaining an interior pressure of the PRP tube at equilibrium with ambient pressure during both injection and aspiration.

A check valve may include an upper housing defining an inlet, a lower housing defining an outlet, and a cavity interposed between and defined by the upper and lower housings for fluidly connecting the inlet and the outlet. The check valve may further include a flexible valve member mounted in the cavity to selectively permit fluid flow in a first direction, and prevent fluid backflow in a second direction opposite to the first direction. A filter member may be mounted in the upper housing, upstream of the flexible valve member. The filter member may have an elongated portion configured to maximize surface area thereof exposed to the fluid flow, and restrict passage of undesirable matter in fluid flowing through the check valve.