Breath test for helicobacter pylori
US5848975A · kind A · utility
31Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0836
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To optimize the .sup.14 C-urea breath test for Helicobacter pylori (a) a collection method for alveolar breath samples, (b) varying the post-dosage breath collection time and (c) varying the concentrations of KOH in the liquid trap employed for the capture of .sup.14 CO.sub.2 are employed. Collection of alveolar breath samples in bags was convenient for user and patient. The test provided optimal sensitivity and specificity for the detection of H. pylori infection when breath collections were performed 10 min after dosage with .sup.14 C-urea, and when breath CO.sub.2 was captured in liquid traps containing 80 or 800 mM KOH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.