Various embodiments of the present disclosure describe a diversion device that traps an initial flow of blood in a diversion chamber of the diversion device. The diversion chamber may be defined, in part, by a housing shell, a housing base, and a filter. The filter may be a porous material that allows air, but not blood, to flow through it. After the diversion chamber is filled, a subsequent flow of blood may be directed into a collection vessel through an internal conduit of the diversion device.

A point-of-care blood collection and dispensing device for use with a luer lock access device, the point-of-care collection and dispensing device including a distal engagement portion, wherein at least a part of the distal engagement portion is configured to engage a needle of the luer lock access device, and a sidewall portion, wherein at least part of the sidewall portion is formed of a flexible material capable of being compressed. The device also includes a fluid chamber configured to hold a blood sample, the fluid chamber bound at least partially by the distal engagement portion and the sidewall portion, as well as an opening, wherein the opening is sized and configured to dispense a small volume of the blood sample held within the fluid chamber when the sidewall portion is compressed.

Blood sample optimization systems and methods are described that reduce or eliminate contaminates in collected blood samples, which in turn reduces or eliminates false positive readings in blood cultures or other testing of collected blood samples. A blood sample optimization system can include a blood sequestration device located between a patient needle and a sample needle. The blood sequestration device can include a sequestration chamber for sequestering an initial, potentially contaminated aliquot of blood, and may further include a sampling channel that bypasses the sequestration chamber to convey likely uncontaminated blood between the patient needle and the sample needle after the initial aliquot of blood is sequestered in the sequestration chamber.

An air bubble removal cap includes: a main body portion that is formed in a tubular shape and defines a hollow portion inside, the hollow portion being configured to communicate with a collection tube that accommodates a body fluid from a living body; a connection portion that is located on a proximal side of the hollow portion and to which the collection tube is connectable; an exhaust portion that is located on a distal side of the hollow portion and is configured to discharge gas discharged from the collection tube; a filter that is disposed in the hollow portion and divides the exhaust portion and the connection portion; and a scattering prevention mechanism that covers a proximal side of the filter and prevents the body fluid from scattering to the filter.

Provided herein is a blood collection device having a tube having a proximal end, a distal end, and a sidewall therebetween defining an interior, the interior configured to receive a blood sample through one or more openings at the distal end of the tube when the distal end of the tube is positioned in a blood vessel and an obturator slidably disposed relative to the tube and received within the interior of the tube.

An integrated catheter is disclosed having a body defining a channel to direct a biological fluid therethrough, a connection port defined in the body, in which an extension tube is fluidly coupled to the connection port, a vented access port in fluid communication with the extension tube, the vented access port spaced apart from the connection port, an integrated catheter operatively connected to the body to direct a biological fluid into the body, and a distal access port defined in the body, the distal access port configured to be in fluid communication with a removable sample collection container. An initial biological fluid volume directed through the body is directed into the extension tube via the connection port and into the vented access port.

A catheter extension set is disclosed having a body defining a channel to direct a biological fluid therethrough, a connection port defined in the body, in which an extension tube is fluidly coupled to the connection port, a vented access port in fluid communication with the extension tube, the vented access port spaced apart from the connection port, a non-integrated catheter removably connectable with the body to direct a biological fluid into the body, and a distal access port defined in the body, the distal access port configured to be in fluid communication with a removable sample collection container. An initial biological fluid volume directed through the body is directed into the extension tube via the connection port and into the vented access port.

A microvolume 3-way stopcock for use in a blood sampling system. The stopcock includes a stopcock body having a cylindrical-shaped central chamber, an inlet fluid passage extending from the central chamber to a connector, a blood sample fluid passage extending from the central chamber to a connector, and a waste fluid passage extending from the central chamber to a connector. A rotatable flow control member having a T-shaped fluid passage is disposed within the central chamber. The rotatable flow control member provides adjustable fluid communication between the inlet, blood sample, and/or waste fluid passages. The stopcock is configured with a small dead space volume in the range from about 0.02 mL to 0.20 mL. A cannula may be connected to the inlet fluid passage. The combined dead space fluid volume of the stopcock and cannula may range from about 0.03 ml to 0.24 mL.

A blood sample collection system includes a blood access device having a fluid flow path and a diagnostic device configured to receive a sample of blood, where the diagnostic device is in fluid communication with the fluid flow path, and where the diagnostic device is configured to be detached from the blood access device.

A fluid control device includes an inlet configured to be placed directly or indirectly in fluid communication with a bodily fluid source and an outlet configured to be placed in fluid communication with a fluid collection device. The fluid control device has a first state in which a negative pressure differential produced from an external source such as the fluid collection device is applied to the fluid control device to draw an initial volume of bodily fluid from the bodily fluid source, through the inlet, and into a sequestration portion of the fluid control device. The fluid control device has a second state in which (1) the sequestration portion sequesters the initial volume, and (2) the negative pressure differential draws a subsequent volume of bodily fluid, being substantially free of contaminants, from the bodily fluid source, through the fluid control device, and into the fluid collection device.