Breath test for helicobacter pylori
Patent 5848975 Issued on December 15, 1998. Estimated Expiration Date: 
September 29, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 29, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethods for the diagnosis of gastrointestinal disorders Noninvasive diagnosis of gastritis and duodenitis Simple examination method of infection with Helicobacter pylori and device therefor Patent #: 5719052 InventorAssigneeApplicationNo. 939861 filed on 09/29/1997US Classes:600/532, Qualitative or quantitative analysis of breath component128/898, Methods600/300, DIAGNOSTIC TESTING600/543Breath collectionExaminersPrimary: Lacyk, John P.Assistant: Kearney, Rosiland Attorney, Agent or FirmForeign Patent References
International ClassA61B 005/08AbstractTo optimize the 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 14 CO2 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 14 C-urea, and when breath CO2 was captured in liquid traps containing 80 or 800 mM KOH. | |
