Respiratory sampling device
December 26, 2010. 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 References 3924612 Automated pulmonary function testing apparatus Physiologic analyzer Pulmonary monitor Testing of the airways and pulmonary tract of a patient, particularly for sensitivity to aerosols Measuring conduit for flow rate and concentration of fluid Method and apparatus for the non-invasive determination of the minute volume of the heart Apparatus and method for monitoring respiratory gas CT blood flow mapping with xenon gas enhancement Incentive inhalation spirometer apparatus InventorAssigneeApplicationNo. 633979 filed on 12/26/1990US Classes:600/532, Qualitative or quantitative analysis of breath component73/23.2, GAS ANALYSIS73/23.3, Breath analysis73/861.04, Of selected fluid mixture component73/861.42, Using differential pressure73/861.65, Pitot600/538Measuring breath flow or lung capacityExaminersPrimary: Cohen, Lee S.Assistant: Pfaffle, Krista M. Attorney, Agent or FirmInternational ClassesA61B 005/08A61B 005/087 Foreign Application Priority Data1988-02-11 FIAbstractAn intubation tube contains both a sampling connector (2) for a gas analyzer and a spirometer (18). Spirometer (18) and sampling connector (2) are manufactured so that, in operation, they make up a single unit which is linked via outflow tubes 6 and 7 to pressure and/or flow measuring elements (12, 13) as well as via a sampling tube (9) to a gas analyzer (10). A microprocessor adjusts the flow rate in accordance with the composition of the gas as determined by the gas analyzer. | |
