Apparatus and methods for pre-treating swabs prior to collection of specimens to reduce false positive detections
US11401654B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 19, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jun 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for pre-treating swabs prior to collection of specimens to reduce false positive detections by immersing a swab in a liquid chemical pre-treating agent for a treatment period of time. Then the swab is removed and circulated in a rinse agent. The pre-treating agent may be an oxidizing agent, a reducing agent, a bleaching agent (e.g. sodium hypochlorite solution) or a fluorescence suppressing dye (such as Evans blue, Trypan blue, or black dye).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.