Method for in house occult blood testing
US4521520A · kind A · utility
17Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1983 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Apr 7, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B10/0038
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.