Surgery – Truss – Pad
Patent
1993-03-05
1994-11-08
Cohen, Lee S.
Surgery
Truss
Pad
128725, 128730, 73 233, A61B 508
Patent
active
053617711
ABSTRACT:
Early detection of lung dysfunction, which in HIV positive patients usually indicates PCP pneumonia infection, is accomplished by a CO fractional uptake test which includes supplying air containing 0.1% CO into a gas reservoir or regulator from which it is drawn through a non-rebreather valve into a mouthpiece and inhaled into the lungs of a patient. Exhaled air is directed by the non-rebreather valve into a chamber coupled to a gas inlet of an infrared CO analyzer. An end tidal volume of gas last exhaled by the patient is drawn through the CO analyzer which measures the concentration of CO therein. The concentration of CO in the air from the gas reservoir also is measured. The fractional uptake of CO is computed as a function of the patient's breathing rate and the minute volume and compared with a stored baseline value for the patient to determine the presence of or extent of lung dysfunction.
REFERENCES:
patent: 3507146 (1970-04-01), Campbell et al.
patent: 3910261 (1975-10-01), Ragsdale et al.
patent: 4958075 (1990-09-01), Mace et al.
patent: 5022406 (1991-06-01), Tomlinson
patent: 5046491 (1991-09-01), Derrick
patent: 5111827 (1992-05-01), Rantala
patent: 5193551 (1993-03-01), Pilipski
patent: 5197481 (1993-03-01), Fisher
Hauck, Computer-aided Measuring System for Investigating the Uptake of Carbon Monoxide via the Respiration, 1979, Biomed Techn. 24(1979) pp. 82-88.
Berecz et al., Respiration Mass Spectrometer, Medicor News (Hungry) No. 1 (1976), pp. 9-12.
Craine Brian L.
Craine Eric R.
Cohen Lee S.
Green Brian M.
Western Research Company, Inc.
LandOfFree
Portable pulmonary function testing device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable pulmonary function testing device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable pulmonary function testing device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1774754