Noninvasive diagnosis of gastritis and duodenitis

Details Noninvasive diagnosis of gastritis and duodenitis Noninvasive diagnosis of gastritis and duodenitis

1989-05-01

1990-08-14

Green, Randall L.

Surgery

Truss

Pad

128730, 128898, A61O 508

Patent

active

049478613

ABSTRACT:
A patient to be treated for the presence of Campylobacter pylori in the stomach and/or duodenum ingests a quantity of urea and after about 10 minutes exhales into breath collection apparatus to provide a breath sample of alveolar air, collected during the last part of the exhalation. Immediately upon issuing from the patient the expired breath is passed in contact with a preferably solid-state body of alkaline hygroscopic material, e.g. sodium hydroxide, that substantially removes water vapor from the breath but is inert to ammonia in the presence of water. The breath sample, thus dehydrated, is delivered to a sensor which signals the presence of ammonia in it, to indicate presence of C. pylori in the stomach.

REFERENCES:
patent: 2795223 (1957-06-01), Stampe
patent: 3303840 (1967-02-01), Etzlinger
patent: 3426745 (1969-02-01), Farr
patent: 3544273 (1970-12-01), McConnaughey
patent: 3734692 (1973-05-01), Lucker et al.
patent: 3777571 (1973-12-01), Jaeger
patent: 3858573 (1975-01-01), Ryan et al.
patent: 4579826 (1986-04-01), Bolton et al.
patent: 4646786 (1987-03-01), Williams
patent: 4821737 (1989-04-01), Nelson
Coelho et al., "Campylobacter pylori in Esophagus, Antrum, and Duodenum", Digestive Diseases and Sciences, vol. 34, No. 3 (Mar. '89), p. 445.
Bartlett "Campylobacter pylori, Fact or Fancy", GAstroenterology, vol. 94, No. 1 (Jan., '88), p. 229.
Evans et al., "A Sensitive and Specific Serologic Test for Detection of Campylobacter pylori Infection", Gastroenterology, Apr., 1989, p. 1004.
Graham et al., "Campylobacter Pylori Detected Noninvasively by the 13C-Urea Breath Test", The Lancet, May 23, 1987, p. 1174.
"C-Urea Breath Analysis, A Non-Invasive Test for Campylobacter Pylori in the Stomach", The Lancet, Jun. 13, 1987, p. 1367.

Affiliated with

Also associated with

Rating

Noninvasive diagnosis of gastritis and duodenitis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Noninvasive diagnosis of gastritis and duodenitis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noninvasive diagnosis of gastritis and duodenitis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-455283