Abstract: A pipet provides for dispensing a fluid medium into an open-ended collection container including an improved dripless tip. The pipet includes a tip body with a cross shaped passage structure that spans the length of the tip body. This cross shaped passage structure is designed to contact the liquid medium that passes into the tip and onto the open distal end of the tip and prevent unwanted dripping therefrom.

Abstract: A pipet gun for drawing liquids into and dispensing liquids from a pipet which includes a variable flow valve assembly. The valve assembly includes a valve which is capable of accommodating a plurality of flow rates, and which is progressively adjustable during pipetting between a first air flow rate and a second air flow rate which is in excess of the first flow rate and which is non-progressively adjustable during pipetting to a third air flow rate which is substantially greater than the second air flow rate. The valve assembly further includes a threshold detector in the form of a spring detent, which provides an indication to the operator that the pipet gun is operating at the increased fluid rate, i.e., the “express mode” of operation.

Abstract: A method for forming a disposable non-latex tourniquet from a thermoplastic elastomer and an additive comprising slip and anti-block components.

Abstract: This invention relates to a closed system specimen collection container. The collection container is designed to collect, transport and transfer the liquid specimen into a non-evacuated tube through an integrated valve component. This device has no sharp needles and utilizes a blunt cannula component on a test tube. The operation of the device consists of the steps of collecting a specimen into the container and attaching a cap in permanent locking and leak resistant attachment. The cap may be a snap-on or threaded lock. The specimen may then be immediately transported to a laboratory in the container where the specimen can be transferred into a tube for analysis. Alternatively, the specimen may then be immediately transferred into a non-evacuated tube through the integrated valve by a passive means. This technique is accomplished by inserting the blunt cannula attached to the tube into the bottom of the container and interfacing with the integrated valve component.

Abstract: The present invention is an additive preparation for use in bodily fluid collection devices. The additive preparation has an additive, an organic acid and a metal carbonate compound. The preparation effervesces when in contact with a body fluid sample, thereby efficiently dispersing in a body fluid sample. The formulation is desirably tabulated to provide an effective, easily stored, and handled preparation. However, a binding or bulking agent may be added to the additive preparation formulation to provide binding and lubricating properties to the formulation. A binding agent enables granulating of the formulation without the forming of a pellet.

Abstract: The present invention is a collection container assembly comprising a container having a wall space between the inner and outer wall of said tube whereby the external dimensions of the container are substantially the same as a standard-sized blood collection tube but with a reduced internal volume.

Abstract: The present invention is a collection container assembly comprising a container having an inert plug inside the bottom end of the container and wherein the external dimensions of the container are substantially the same as a standard-sized blood collection tube but with a reduced internal volume.