Fluid sample collecting and analyzing apparatus and method
US8540938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2012 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Sep 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A spongy swab (16) is mounted against the distal face (15) of a piston (14) at the end of a push-rod (12). Once humected with a sample fluid, the swab and piston assembly is inserted into a tubular body (30) like the plunger of a syringe. As the swab is pushed and squeezed against the distal end (20) of the body up to a trippable stop, part of the fluid is excreted into a chromatographic immunoassay testing device (21) through a first aperture (19) in a distal section of the body. The remainder of the sample is kept in a sealed chamber (7) between the piston and the end wall of the tubular body until it is excreted through a second aperture (23) for a secondary test by pushing the piston beyond the trippable stop. That preserves the sample within the spongy swab that has been used to collect it; thus preventing the adsorption of the analytes on the surfaces of the sealed chamber, and to provide a convenient and rapid way to extract the remainder of the specimen in a syringe-like manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.