Device and method for measuring a spirogram
May 21, 2018. 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 3889672 3924612 Automated pulmonary function testing apparatus Flowmeter for providing synchronized flow data and respiratory gas samples to a medical mass spectrometer Apparatus for testing pulmonary functions Pulmonary function tester Pulmonary function tester Cardiopulmonary performance analyzer having dynamic transit time compensation Boxless measurement of thoracic gas volume Device and a method for measuring the resistance of the respiratory tract Patent #: 5868681 InventorsApplicationNo. 082498 filed on 05/21/1998US Classes:600/538, Measuring breath flow or lung capacity73/23.3, Breath analysis73/31.04, Pressure600/531, Measuring metabolic rate by breath test600/532Qualitative or quantitative analysis of breath componentExaminersPrimary: Hindenburg, MaxAssistant: Natnithithadha, Navin Attorney, Agent or FirmInternational ClassA61B 005/08AbstractA device and method for measuring critical portions of an individual's forced expiratory efforts. The device includes a series of preset negative pressure sensors attached to a sensor port located in a breathing tube of predetermined dimension. A patient blows through the breathing tube triggering the various sensors depending on the airflow rate. The time each of the sensors are activated is recorded. The recorded information can be used to determine various diagnostic parameters.Other References
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