Cozart Bioscience Limited

Concateno UK Limited

Christopher William Hand

Dene Baldwin

Robin James Spivey

Osborn Pierce Jones

Ahmed Mohammed Taki Jehanli

Ahmed Jehanli

An oral fluid collection and transfer device comprises a collection device () and a test cartridge (). The collection device includes a frame or chassis (), and an absorbing pad () for absorbing oral fluid and which is secured around part of the frame with part of the frame protruding from the pad. A collapsible cover () covers the absorbing means and has apertures () for the ingress of oral fluid into contact with the absorbing pad. A cap () covers the part of the frame protruding from the absorbing pad. The cap and the cover latch together to surround the frame and the absorbing pad. The device also includes a fluid adequacy indicator () in the form of an electrical circuit with an LED () which is completed when the absorbing means has absorbed a predetermined volume of oral fluid.

Oral fluid collection, transfer and transportation device and method

A screening device for performing an immunoassay test to detect the presence of a compound in a body fluid. The device includes a holder for removably receiving a membrane to which the fluid has been applied. Light is directed to the membrane. A photodetector measures the concentration of the light reflected back from the membrane. Specifically, the concentrations of reflected light from a control zone and a test zone are measured. Signals representative of the measured light concentrations are applied to a processor. If a specified concentration of predetermined light from a control zone on the membrane is detected, the processor considers the test to be successful. In the test is successful, the processor, based upon the measured concentration of reflected light from the test zone, generates data representative of the presence of the compound.

Screening arrangement for screening immunoassay tests and agglutination tests

The invention provides competitive immunoassay techniques for high sensitivity detection of delta-9-tetrahydro-cannabinol (; THC) employing a carrier conjugate of an intermediate in the biosynthesis of, more particularly 5-pentylresorcinol conjugated to a macromolecular carrier via its hydroxyl groups. By employing such a conjugate with anti-THC antibody in a lateral flow immunochromatography test device convenient on-site testing for low levels ofin liquid samples may be achieved. Such testing is particularly favoured for roadside testing forin oral fluid samples.

Delta-9-tetrahydrocannabinol detection method

A screening device for performing an immunoassay test to detect the presence of a compound in a body fluid. The device includes a holder for removably receiving a membrane to which the fluid has been applied. A light is directed to the membrane. A photodetector measures the concentration of the light reflected back from the membrane. Specifically, the concentrations of reflected light from a control zone and a test zone are measured. Signals representative of the measured light concentrations are applied to a processor. If a specified concentration of predetermined light from a control zone on the membrane is detected, the processor considers the test to be successful. In the test is successful, the processor, based upon the measured concentration of reflected light from the test zone, generates data representative of the presence of the compound.

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Abingdon, United Kingdom

Christopher William Hand