Patents Assigned to SmithKline Diagnostics
  • Patent number: 4645743
    Abstract: A method and device for collecting and testing fecal occult blood which permits multiple analyses of a single fecal sample. The device is a combination of a sampler for collecting the fecal matter and a test slide. The fecal sampler comprises a pocket-like wipe pad for obtaining direct anal stool smears. An insert is disposed in the pocket of the wipe pad. The slide has a profiled opening similar to the design of the wipe pad. This opening acts as a receptacle for the pad when the fecal smear is transferred to the guaiac specimen receiving sheet of the slide. When the slide is closed the insert can be removed from the wipe pad. This design permits an analysis to be done on the specimen receiving sheet of the slide together with a second confirmatory test for human hemoglobin on portions of the insert. The fecal material on the insert is physically removed from the guaiac specimen receiving sheet.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: February 24, 1987
    Assignee: SmithKline Diagnostics, Inc.
    Inventors: Josefina T. Baker, Joseph F. Pagano, Ronald J. Schoengold
  • Patent number: 4521520
    Abstract: A method for determining the presence of occult blood in the bowl of a toilet includes the steps of suspending from the seat of the toilet an absorbent test sheet carrying a test reagent, defecating onto said sheet, flipping said sheet over to deposit the fecal matter in the bowl water, applying a developing solution to said sheet and observing whether a portion of said sheet is dyed blue. Preferably the test sheet is an absorbent paper printed or impregnated with guaiac.
    Type: Grant
    Filed: April 7, 1983
    Date of Patent: June 4, 1985
    Assignee: SmithKline Diagnostics, Inc.
    Inventor: Stanley E. Jacke
  • Patent number: 4486536
    Abstract: A method and novel absorbent substrate for determining the presence of occult blood in gastric fluid. The substrate is acid treated and contains guaiac. The method includes the addition of the gastric fluid to the acid treated guaiac substrate which is developed with a buffered developing solution. Preferably the substrate is an acid treated sheet of absorbent paper and the developing solution is an aqueous buffered solution of hydrogen peroxide.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: December 4, 1984
    Assignee: Smithkline Diagnostics, Inc.
    Inventors: Josefina T. Baker, Paul J. Lawrence, Charles W. Townsley