The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2006
Filed:
Jan. 07, 2003
Alex Stenzler, Long Beach, CA (US);
Alex Stenzler, Long Beach, CA (US);
Sensormedics Corporation, Yorba Linda, CA (US);
Abstract
Disclosed is a method and device for performing forced expiratory maneuver in an infant to assess the infant's pulmonary function. Under this method, the infant's lungs are synchronously inflated to super-atmospheric levels synchronous with the infant's natural tidal inspiration for a plurality of consecutive respiratory cycles. The end-expiratory COlevels in the infant's respiration are measured during the test. When the end-expiratory COconcentration decreases from the baseline by a pre-defined amount, the infant lungs are rapidly inflated to substantially total lung volume and rapidly deflated to produce a maximum forced expiration. The pre-defined amount of change in COconcentration is usually determined by the testing clinician. Typical concentration drop in COlevels, for example, ranges between 4 and 8 mmHg. But the decrease may also be as little as 2 mmHg or as much as 15 mmHg, depending on the testing clinician. The decrease in the end-expiratory COlevel of the infant indicates that the infant's respiratory center is sufficiently modified to allow for the measurement.