Instrument for the detection of neisseria gonorrhoeae and the like
US3954564A · kind A · utility
Inventor
Key dates
| Filing date | Mar 25, 1975 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Mar 25, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2010/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable instrument for Neisseria gonorrhoeae making use of an oxidase reagent impregnated in a dry pledget that is activated by being wetted at the time of the test comprising a flexible transparent tube surrounding a frangible ampul containing a wetting fluid to activate the reagent and the pledget, both held in a reaction chamber within the tube by a restriction in the tube and a swab held separated from the pledget by the restriction until a test specimen has been collected thereon. After the specimen has been collected, the swab is reinserted in the tube, forced past the restriction and into contact with the pledget. The frangible ampul is broken by squeezing the flexible tube, and the instrument may be sealed with a cap as the test proceeds. Within a time period of from 30 to 120 seconds, the test is completed and the results may be noted by observing whether or not there has been a change of color of the pledget, which can be observed through the transparent wall of the tube, whereupon the sealed instrument may then be safely disposed of.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.