Occult-blood detection

Details Occult-blood detection Occult-blood detection

1983-05-03

1986-03-25

Richman, Barry S.

Chemistry: analytical and immunological testing

Hemoglobin, myoglobin, or occult blood

128638, 128759, 422 56, 435 28, G01N 102, G01N 3352, G01N 3372

Patent

active

045783594

ABSTRACT:
A specimen-collection wipe 2 is suitable for use in testing for the presence of occult blood in fecal matter or other bodily substance. The wipe 2 includes a substrate 4 having a hand-contact surface 11 for manipulating the wipe 2 and an occult-blood detection-test surface 10 for collecting a specimen and supporting it during treatment with an occult-blood indicator fluid. The substrate 4 has a sufficiently low wet strength to permit the wipe 2 to be disposed of in a toilet and preferably has a sufficiently high resistance to seepage to permit the hand-contact surface 11 to remain dry for the duration of the test. The wipe 2 also includes an indicator-activity verification region 14 on which is dispersed a reagent capable of interacting with the occult-blood indicator fluid to provide an indication characteristic of the presence of occult blood.

REFERENCES:
patent: 3718431 (1973-02-01), Wild
patent: 4082886 (1978-04-01), Butterworth et al.
patent: 4175923 (1979-11-01), Friend
patent: 4259964 (1981-04-01), Levine
patent: 4273741 (1981-06-01), Levine
patent: 4333734 (1982-06-01), Fleisher
patent: 4365970 (1982-12-01), Lawrence et al.
patent: 4420353 (1983-12-01), Levine
Rider et al., Journal of the American Medical Association, vol. 56, pp. 31-33, (9/4/54).

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