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:
Oct. 23, 2001
Filed:
Feb. 17, 2000
Mohy G. Morris, Little Rock, AR (US);
Other;
Abstract
A method of measuring residual lung volume (RV) in infants by washout of nitrogen or other inert gas, using a compression jacket for rapid thoracoabdominal compression (RTC). RTC is performed from a raised lung volume (V,) to an airway opening pressure. The jacket pressure (P,) (range 65-92 cm H,O) which generates the highest forced expiratory volume is used during the RV maneuver. The infant is manually hyperventilated to briefly inhibit the respiratory drive. RTC is initiated during the last passive expiration. By measuring the volume of nitrogen expired after end-forced expiratory switching of the inspired gas from a breathable mixture containing an inert gas to 100% oxygen while RTC is maintained during the post-expiratory pause, RV is calculated.