Abstract:
A method for converting a partial pressure of oxygen (pO2) value in blood at a measurement temperature to a corresponding value at a reference temperature (37 °C). A pO2 value is determined by measurements made in a partient's blood stream using a phosphorescent compound sensitive to oxygen concentration. The compound is illuminated with a short pulse of light, causing a phosphorescent emission having a rate of decay that varies as the function of the pO2 in the blood. A detector (34) produces an electrical signal corresponding to the intensity of the emission, and the signal is converted to a corresponding digital value for input to a microcomputer (12). Supplied to the microcomputer in digital form is a signal indicative of the temperature at the measurement site where the compound is disposed. The microcomputer determines phosphorescent decay rate and from that determines pO2 at the measurement site for measurement temperature.
Abstract:
A method for separating phytate and manganese from protein and dietary fiber involves treatment of an aqueous slurry of phytate-containing material at a low pH with insoluble alumina. In a batch treatment process the pH of the solution is increased, leaving phytate units attached to the alumina while freeing the protein and dietary fiber. In a column treatment process, the column containing alumina is rinsed, after the low pH treatment, with dilute acid and water to recover the protein and/or dietary fiber. This method may be employed either during the manufacture of protein and fiber isolates from flour or flakes, or for removing phytate from commercially available protein and fiber commodities. The spent alumina may be readily regenerated and reused. The method of separating manganese from rice protein using this same technology is also discussed.
Abstract:
A system accommodates the transfer or withdrawal of liquid from a bulk supply. The system includes a connector (50) connected to the supply container (20), a first conduit (56) extending from the first connector, a second connector (116) on the first conduit connected to a syringe (120), a second conduit (132) having an end connected with the first conduit and another end connected to a receptacle (140), a first check valve (102) in the first conduit prevents flow into the supply container, a second check valve (150) in the second conduit prevents flow out of the receptacle (140), and a flexible, open-mouthed barrier (80) penetrated by the conduits and sealed about the conduits. The barrier is bag-like and accommodates an arrangement permitting access to the first connector and container. The bag (80) can be arranged in extended orientations enclosing the first connector and container. The bag is sealable in the extended orientation to form a protection system around the supply container and receptacle.
Abstract:
A method and composition useful for the detection of anti-milk-protein IgE antibodies patient in body fluids. A composition of milk protein extract, casein and beta -lactoglobulin is useful for the detection of anti-milk-protein IgE antibodies. The furher addition of bovine gamma globulin to the composition improves the detection of such IgE antibodies. The method involves applying to a solid phase an amount of the composition in solution and drying. The solid phase is placed in contact with a patient test sample and the presence or amount of anti-milk-protein IgE antibodies is determined.
Abstract:
A device (10) for cleaning contact lenses has a soft tip applicator (20) affixed to a container (12) of lens cleaning solution and is used to apply the solution to the lenses. A cap (25) having threads (26) is adapted to engage threads (15) on the container (12). A dust cover (29) is detachably affixed to the cap (25).
Abstract:
This invention is directed to suck as quickly as possible an erythrocyte component as a highly viscous liquid when a blood plasma component and the erythrocyte component are pipetted from a blood sample in which the blood plasma component and the erythrocyte component are separated into upper and lower fractions by centrifugal separation. A nozzle portion (32) consists of a nozzle base (35) and a disposable chip (36) and is transferred vertically and horizontally by an XYZ robot (34). Pipetting of the blood plasma component in the blood sample place into a test tube (62) by the nozzle portion (32) is first carried out and after the inner wall of the disposable chip (36) is coated by the blood plasma, pipetting of the erythrocyte component is then carried out.
Abstract:
A stick-like holder (18) and packaging (16), including an overcap (20) and a sealed, light, moisture and tamper resistant foil pouch, for a hardened, medicated matrix (26) affixed to one end (24) of the holder (18) including detent means for releasably mounting the overcap on the matrix (26) end of the holder and with the holder having a flat, label receiving handle (28) at its other end and a circular flange (32) to prevent swallowing of the holder when placed in a patient's mouth to medicate or pre-medicate the patient, also includes a cylindrical rod like member (22), a handle, pressure sensitive mylar label (30), spaced annular rounded grooves (34), tubular body portion (36), closed end (38), open end (40), collar (42), a cylindrical wall portion (46), retaining bumps (48) and ribs (54).
Abstract:
The present invention provides an improved assay for detecting the presence of an antibody to an HCV antigen in a sample by contacting the sample with at least one polypeptide containing at least one epitope of an HCV antigen. Preferred assay formats include a confirmatory assay, a combination assay, a synthetic polypeptide-based assay, an immunodot assay and a competition assay.
Abstract:
Immunomodulatory macrocylic compounds having the formula (VII) and pharmaceutically acceptable salts, esters, amides and prodrugs thereof, wherein X is selected from one of the formulae (Ia), (Ib) and (Ic), as well as pharmaceutical compositions containing the same.
Abstract:
A volumetric pump (30) includes a motor (146) that rotatably drives a cam assembly (142), which actuates a plunger (48), causing it to compress a pumping portion (34b) of a flexible tubing (34). Compression of the tubing displaces fluid trapped within the pumping portion, causing it to flow past an outlet cracking valve (52). A proximal pressure sensor (44) and a distal pressure sensor (56) each produce signals indicative of the pressure within the proximal portion and distal portion of the flexible tubing, which are used to determine whether a proximal or distal occlusion of the flexible tubing has occurred. Both pressure sensors comprise strain gauges connected to flexures that apply a spring-biased force against the proximal and distal portions of the flexible tubing. These sensors thereby respond to the cross-sectional size (diameter) of the tubing, as affected by fluid pressure therein. Proximal and distal pressures are thus monitored without violating the integrity of the flexible tubing.