Abstract: Method of detecting urobilinogen in urine using a chemical detection means with an indicator that will produce a detectable quantitative response in the presence of, or lack of urobilinogen in urine on an automated analyzer.

Abstract: Detecting red blood cells in a patient's urine by placing an aliquot of the urine in an automated analyzer sampling cup. The urine is transferred to a cuvette mounted within the automated analyzer and one or more reagent compositions in an aqueous medium is injected into the cuvette. The reagent contains a buffer to adjust pH, chemicals to remove substances in the urine that interfere with colorimetric photometry, a compound to lyse the red blood cells in the urine, a substrate to react with the hemoglobin, a color indicator and a surfactant to improve fluid mechanics. The sample is read against a standard using a pre-programmed monochromatically specified wavelength to determine the presence or absence of blood cells in the patient's urine.

Abstract: A scuba diver's toxic gas detector, in particular carbon monoxide detector, for use with conventional diving equipment and/or dive equipment filling systems, having a body portion (34) and a detector portion (32). The body portion (34) includes a first opening (42) therethrough communication at opposite ends thereof with connections for a first hose (14) from an air tank and a second hose(16) from a buoyancy vest (12). The body portion (34) includes another opening (50) in fluid communication with the first opening in which is positioned a guide element (68). A movable stem element (75) is positioned within said guide element (68). A bore (64) extends between the second opening (50) and the detector portion (32). A button (80) is connected to the stem element (75) and is biased in one position by a spring (82).

Abstract: Tissue extraction tool includes a hollow cannula with a sharpened tip containing an aperture used to extract cylindrical core tissue samples of varying sizes from thin strips of tissue or paraffin embedded tissue. The tissue extraction tool contains a plunger with an optional spring for ejecting the cut tissue out of the sharpened tip of the device.

Abstract: A method that provides techniques for determination of urinary constituents (Blood (Red Blood Cells/Hemoglobin), Leukocytes, pH, Specific Gravity, Bacterial Reductase/Nitrite/Indole activity, Total Ketone Bodies, Protein, and Glucose) at low chemically significant levels with a carrier independent reagent system that can be placed on a high throughput autoanalyzers. Thus, giving the analyst the ability to run multiple urinary assays on a single sample of urine simultaneously with the ability to compare to reference standards on the same run. This system is designed to neutralize urinary interfering substances. This method is fast, efficient, an adaptable to many of the currently available discrete and continuous flow automated analyzers, effective at sample to reagent ratios of 1 to 13 or more. This method is applicable to samples with high turbidity, high ionic strength, high color content, wide pH extremes, and buffer strengths, among other interfering substances.

Abstract: A safety system shield which protects the head, facial, throat, and upper thorax regions of the body from exposure to biological, chemical, and physical matter that may take the form of solids, liquids, or aerosols, and includes a thin flexible shield which is curved, and transparent. It is shaped to rest on the anterior shoulder, and thorax region of the body, thereby allowing the head to look in any direction. This relieves the wearer's head of the weight of the shield while affording maximum protection. The safety shield system is ultra-light weight thus, reduces wearer's fatigue, and eliminates headaches, resulting in the enhancement of safety, and the reduction of accidents. The safety shield is flexible allowing it to conform to the size, and curvature of the wearer.

Abstract: A method of detecting gluteraldehyde adulterant in a urine sample. An aliquot of urine is inserted into an automatic chemical analyzer and a spectrophotometric absorbance reading is taken. Thereafter, the aliquot is mixed with a reagent mixture containing a carbonyl indicator and a second spectrophotometric absorbance reading is taken and compared to the first reading.