Abstract: The invention provides novel compounds, reagents, systems, and methods for detecting a metabolite related to a NRTI in a biological sample and use thereof in monitoring adherence to pre-exposure prophylaxis or anti-retroviral treatment. Such reagents comprise NRTI derivatives, analogs, NRTI derivatives conjugates, along with antibodies directed to same, which are useful for antibody-based methods, such as a lateral flow immunoassay and other point of care devices.

Abstract: The invention provides novel compounds, reagents, systems, and methods for detecting a metabolite related to a NRTI in a biological sample, and use thereof in monitoring adherence to pre-exposure prophylaxis or anti-retroviral treatment. Such reagents comprise NRTI derivatives, analogs, NRTI derivatives conjugates, along with antibodies directed to same, which are useful for anti-body-based methods, such as a lateral flow immunoassay and other point of care devices.

Abstract: A method of preparing a cryo-surgical system for treatment includes accessing a container containing a refrigerant, a delivery tube having a first end configured to be in flow communication with the container and a second end opposite the first end. The system further includes a plurality of flexible finger portions disposed proximate the second end of the delivery tube opposite the first end. A porous applicator bud is disposed proximate the second end of the delivery tube. The porous applicator bud includes a body portion disposed between the plurality of flexible finger portions and a contact surface extending from the plurality of flexible finger portions. An adjustment ring disposed along the delivery tube adjacent to the plurality of flexible finger portions can be used to adjust the size of the contact surface of the porous applicator bud.

Abstract: A method of preparing a cryo-surgical system for treatment includes accessing a container containing a refrigerant, a delivery tube having a first end configured to be in flow communication with the container and a second end opposite the first end. The system further includes a plurality of flexible finger portions disposed proximate the second end of the delivery tube opposite the first end. A porous applicator bud is disposed proximate the second end of the delivery tube. The porous applicator bud includes a body portion disposed between the plurality of flexible finger portions and a contact surface extending from the plurality of flexible finger portions. An adjustment ring disposed along the delivery tube adjacent to the plurality of flexible finger portions can be used to adjust the size of the contact surface of the porous applicator bud.

Abstract: A cryo-surgical system may comprise a container containing a refrigerant, a delivery tube having a first end configured to be in flow communication with the container and a second end opposite the first end. The system may further include a plurality of flexible finger portions disposed proximate a second end of the delivery tube opposite the first end, an applicator bud having a body portion disposed within the plurality of flexible finger portions and a contact surface extending from the plurality of flexible finger portions. An adjustment ring may be disposed along the delivery tube adjacent to the plurality of flexible finger portions. The contact surface of the bud may be changeable by adjustment of the adjustment ring.

Abstract: A sample collection kit includes a sample collector, a polycarbonate container, and a preservative solution. The sample collector includes an absorbent pad with a collecting element that receives a sample of oral fluid. The absorbent pad also includes an interior portion that extends into a handle. The handle includes an upper casing and a lower casing. The collecting element can be treated with a surfactant to optimize recovery of analytes from the oral sample and/or their absorbance onto the absorbent pad. A polycarbonate container receives the absorbent pad or the sample collector and stores it for testing of analytes. A dextran sulfate preservative solution is included in the polycarbonate container that inhibits enzymatic activity on a collected sample.

Abstract: A sample collector and test device is disclosed. The sample collector and test device may be used together as a diagnostic tool for collecting and assay of analytes contained in a sample. A sample collector is also disclosed which may be used with existing sample containers and or test devices. The sample collector may indicate sample adequacy when a sufficient volume of sample has been collected for assay and may also include a sample retaining feature which retains a portion of expressed sample for confirmatory testing, if desirable. The sample collector may also include a mechanism for expressing sample in a sample collector and/or test device. A test device is also disclosed for retaining and assay of an expressed sample. The disclosed test device may be used with existing sample collectors. In a preferred embodiment, test device is used with a preferred sample collector.

Abstract: A method and a device for collection and assay of oral fluids are disclosed. The method places an assay device into an oral cavity, removes the device, and determines the presence or absence of an analyte. The assay device comprises an assay portion housing a lateral flow assay strip, a neck portion extending from the assay portion and forming a channel for fluid delivery to the assay strip; a collection strip in fluid communication with the lateral flow assay strip; and a blocking strip coupled between and in flow communication with the lateral flow assay strip and the collection strip. The channel is defined by a narrow part proximal to the assay portion and a part which receives oral fluid and has a substantially wider channel width. The collection strip has a first portion disposed within the channel and a second portion protruding outwardly from the neck opening.

Abstract: A method for rapid collection and assay of oral fluids is disclosed. The method comprising the steps of: (a) placing an assay device into an oral cavity, (b) removing said assay device from said oral cavity; and (c) determining the presence or absence of at least one analyte.

Abstract: A cryosurgery device for dispensing a liquid refrigerant from a container having a valve stem extending outwardly therefrom. The device includes an actuator adapted to seat on the valve stem of the container in order to depress the valve stem to release the refrigerant from the container. The actuator includes an inner passageway having opposed ends disposed therein, one of the ends of the passageway being in fluid communication with the valve stem. An applicator tube is mounted to the actuator at the other end of the inner passageway. A cap is disposed on the top of the container. The actuator is movably positioned on the cap and a shield is attached to the cap to completely receiving the applicator tube. Liquid refrigerant can only be dispensed when the actuator is positioned properly and the applicator tube is disposed within the shield means.

Abstract: A container is configured to provide sequential access to contents therein, and includes an upper portion and a lower portion connected to the upper portion by a hinged portion, the lower portion defining an interior space bearing a moveable tray and an opening through which the moveable tray may move, the moveable tray defining an interior volume configured to receive at least one device therewithin. The container also includes at least one device borne by the moveable tray, at least one cavity for receiving the at least one device disposed in the upper portion and at least one insert located between the upper and lower portions, the at least one insert comprising at least written indicia thereon.

Abstract: A sample collector and test device is disclosed. The sample collector and test device may be used together as a diagnostic tool for collecting and assay of analytes contained in a sample. A sample collector is also disclosed which may be used with existing sample containers and or test devices. The sample collector may indicate sample adequacy when a sufficient volume of sample has been collected for assay and may also include a sample retaining feature which retains a portion of expressed sample for confirmatory testing, if desirable. The sample collector may also include a mechanism for expressing sample in a sample collector and/or test device. A test device is also disclosed for retaining and assay of an expressed sample. The disclosed test device may be used with existing sample collectors. In a preferred embodiment, test device is used with a preferred sample collector.

Abstract: A sample collector and test device is disclosed. The sample collector and test device may be used together as a diagnostic tool for collecting and assay of analytes contained in a sample. A sample collector is also disclosed which may be used with existing sample containers and or test devices. The sample collector may indicate sample adequacy when a sufficient volume of sample has been collected for assay and may also include a sample retaining feature which retains a portion of expressed sample for confirmatory testing, if desirable. The sample collector may also include a mechanism for expressing sample in a sample collector and/or test device. A test device is also disclosed for retaining and assay of an expressed sample. The disclosed test device may be used with existing sample collectors. In a preferred embodiment, test device is used with a preferred sample collector.

Abstract: A lateral flow test strip for the analysis of a sample featuring numerous capture zones arranged in an array such that each capture zone is substantially equidistant from the sample containing area. The sample does not pass through another capture zone to reach any one of the other capture zones. The capture zones are preferably arranged in a linear array perpendicular to the flow of the sample through the lateral flow test strip. The lateral flow test strip allows for an increased number of simultaneous analyses of numerous analytes from one sample to occur on one lateral flow test strip.