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.

A fluid sample optimization device for optimizing a fluid sample collected by a fluid collection device from a fluid source, where a first portion of the fluid sample potentially has contaminants. The device includes an inlet configured to connect with the fluid source, an outlet configured to connect with the fluid collection device, a sample path connected between the inlet and the outlet, and a contaminant containment reservoir connected between the inlet and the outlet. The contaminant containment reservoir has an air permeable fluid resistor proximate the outlet, and is arranged to receive the first portion of the fluid sample from the fluid source to displace air therein, such that upon receipt of the first portion of the fluid sample and containment of the contaminants in the contaminant containment reservoir, subsequent portions of the fluid sample are conveyed by the sample path from the inlet to the outlet when subsequent pressure differentials are applied between the inlet and the outlet. The fluid sample optimization device can further include a displaceable plug between the inlet and the sample path, that can be displaced by the subsequent pressure differentials to allow the subsequent portions of the fluid to be conveyed through the sample path.

A syringe assembly includes (i) a syringe with a cylindrical body, luer tip at a first end, finger grip at a second end and a cannula extending from the luer tip into the cylindrical body, and (ii) a plunger unit having an adapter portion, receiving cavity, finger grip and piston. A channel extends the length of the adapter portion to receive the cannula in one end and a variety of connectors, valves and/or syringes in a second end. The end of the channel accessible in the receiving cavity mates with or engages any number of commercially available valves, connectors and/or syringes while the luer tip similarly connects to any number of valves, catheters, connectors, etc., depending on the task being undertaken with the syringe assembly.

Fluid collection/injection device comprises a body having a front end, a back end, and a main hollow section arranged between the front and back ends and a needle hub securing section arranged on the front end and being structured and arranged to receive therein a needle member. The fluid collection/injection device is structured and arranged to utilize at least an operational mode, an operational mode, and a post-use mode. In the installation mode, the needle member is coupled to the body via the needle hub securing section. In the operational mode, fluid passes through the needle member and into or out of a receptacle inserted into the main hollow section.

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.

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.

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 blood collection device for medical use having a body with longitudinal flow channel and a needle retraction chamber, a slide assembly slidably engaging the body in a plane transverse to the flow channel through the body, a forwardly projecting nose, a device stabilization member with flexible wings projecting oppositely from a cylindrical hub attached to the nose, a rearwardly biased venipuncture needle projecting forwardly from the nose, and a tubular needle cap having proximal and distal ends, wherein the proximal end of the tubular needle cap is insertable between and is releasably held by the nose and the cylindrical hub. Cooperatively configured sets of ramps and stop surfaces limit lateral sliding movement of the body relative to the slide assembly.

A biological property testing device includes a base comprising a primary surface extending in a base plane, and a first lancet station supported by the base. A first test strip channel provided in the base can have a main channel portion extending generally parallel with the base plane, and an angled channel portion that forms an angle with the main channel portion between 5 degrees and 90 degrees. The first test strip channel can house a biological test strip oriented so that a meter connecting end of the biological test strip is adjacent to the main channel portion and a sample end of the biological test strip is adjacent to the angled channel portion.

An applicator for applying a microneedle patch to a skin of a subject, comprising a base having a skin-side end and a holder for holding the microneedle patch. Two or more contact parts are movable over the skin and away from each other to stretch the skin. The applicator further comprising an interface for an actuator. The actuator actuates a movement of the microneedle patch relative to the skin-side end to penetrate at least into the stratum corneum of the epidermis of the skin with the microneedle. A microneedle patch comprising a skin-adhesive surface for attaching the patch to the skin of a subject. The patch has one or more projecting microneedles. A stiffening body stiffens the patch in at least a parallel direction parallel to the skin-adhesive surface in a region of the skin-adhesive surface which includes the microneedle.