Diagnostic method for high sensitivity detection of component concentrations in human gas emission
US9285310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2015 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Feb 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for collecting gas samples emitted from skin and detecting concentrations of specified components therein. The system includes a collection chamber housing defining an interior space, the collection chamber housing having a gas inlet, a gas outlet, and an opening. The opening is configured for enclosing a skin portion from which to receive an emitted gas sample and sealing the interior space against the skin portion. An inert gas source is connected to the gas inlet, which is capable of allowing inert gas from the inert gas source to flow into the interior space. A gas cell is connected to the gas outlet, which is capable of allowing the inert gas and the gas sample to flow from the interior space into the gas cell. As a laser travels through the gas cell, power and optoacoustic signals are measured and used to determine a concentration of the specified component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.