American Bio Medica Corporation

Cd Diagnostics, Inc.

Martin Raymond Gould

Robert Bernstine

Yli Remo Vallejo, Jr

James W Stave

Robert Smalley

Jackie Gale

John Donovan

Michael Brown

Yli Remo Vallejo

John Leon Miamidian

Megan Carpenter

Marc Arnone

Various embodiments disclosed relate to a buffered aqueous solution. The buffered aqueous solution includes a buffer. The buffer includes a citrate component having a concentration in the solution in a range of from about 0.1 mM to about 600 mM. The buffer further includes a metal component having a concentration in the solution in a range of from about 0.01 mM to about 100 mM. The buffered aqueous solution has a pH in a range of from about 5 to about 9.

Aqueous citrate-buffered metal solutions

An extraction method and apparatus is provided for obtaining quick, safe and highly sensitive testing of a variety of body fluids including saliva, blood, urine or other fluids for drugs of abuse or other analytes. The apparatus includes a latchable extraction wand for obtaining body fluid samples from a subject which is adapted to maximize the portion of the body fluid sample that will go into a graduated bottle containing a buffer solution, and a testing device wherein the sample will be received and into which test strips can be inserted to determine levels of drugs of abuse or other analyte in the sample. In one of the methods of the invention, energy is imparted to the sample and buffer solution, such as by shaking, and this facilitates reduction of sample viscosity, such as by promoting the breakdown of mucins when the sample is saliva.

Extraction method and apparatus for high-sensitivity body fluid testing device

A method and device are provided for stimulating and increasing the production of saliva during immunoassay tests for drugs or other analytes wherein a scent or odor capable of stimulating saliva production is incorporated into a device for obtaining an oral sample from a test subject. The scent or odor may be impregnated into the oral sample collection device or may be part of an attachment to such a device, and the scent or odor is disposed in such a manner so as to maximize the exposure of the scent to the test subject and thus stimulate the production of saliva. The method and device of the invention are advantageous because the increased production of saliva will facilitate the testing of an oral sample for drugs or other analytes and will increase the likelihood of obtaining a complete and accurate result.

Method for stimulating saliva production during oral sample collection procedure

An assay device for testing of liquid samples for drugs of abuse has a transparent container for retaining a liquid sample. A backing member is within the container and is curved so that its front surface corresponds to the curvature of the container wall. Immunoassay test strips are on the front face of the backing and are visible through the container wall. Each test strip is enclosed in a transparent pocket which has a bottom opening through which the bottom portion of the test strip protrudes to contact the liquid sample within the container. The liquid then flows upwardly through the test strip to react with reagents within the test strip.

Assay device and process for the testing of fluid samples

A lateral flow immunoassay test device is provided that includes a housing with an elongated slot for holding a test sample collector; an elongated holder member for securing at least one immunoassay test strip therein; a first chamber for storing a first, pre-treatment reagent; and a second chamber for storing a second reagent. Methods of conducting lateral flow immunoassays are also provided. The device and methods of conducting lateral flow immunoassays as provided herein are advantageous in that they allow pre-treatment and pre-incubation of the test sample so that the sample flows onto the test strip more easily and provide for increases in the sensitivity of the assay.

Lateral flow immunoassay device and method

An extraction method and apparatus is provided for obtaining quick, safe and highly sensitive testing of any of a variety of body fluids including saliva, blood, urine or other fluids for drugs of abuse or other analytes. The apparatus includes a latchable extraction wand for obtaining body fluid samples from a subject which is adapted to maximize the portion of the body fluid sample that will go into a graduated bottle containing a buffer solution, and a testing device wherein the sample will be received and into which test strips can be inserted to determine levels of drugs of abuse or other analyte in the sample. In one of the methods of the invention, energy is imparted to the sample and buffer solution, such as by shaking, and this facilitates the reduction of sample viscosity, such as by promoting the breakdown of mucins when the sample is saliva.

Apparatus for high-sensitivity body fluid testing device

Assay device for the testing of fluid samples

In a lateral test flow immunoassay device, a saliva sample and a buffer solution are delivered into a mixing chamber to mix with a second reagent. The resulting test mixture is allowed to incubate for a pre-determined period of time and then selectively delivered to a test strip.

Saliva sample testing device

A lateral flow immunoassay test device that includes a housing with an elongated slot for holding a test sample collector; an elongated holder member for securing at least one immunoassay test strip therein; a first chamber for storing a first, pre-treatment reagent; and a second chamber for storing a second reagent. The pre-treatment reagent is contained within a rupturable enclosure. A piercing member is located within the housing that is used to rupture the enclosure in order to release the pre-treatment reagent so that the sample and pre-treatment reagent form a mixture. The second reagent may then be introduced to the mixture which is allowed to react with the second reagent for a period of time. The mixture and second reagent combination is then contacted with the immunoassay test strip.

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Mullica Hill, NJ, United States of America

Martin Raymond Gould