Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-10-16
1997-07-29
Rimell, Sam
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
128760, A61M 3100
Patent
active
056517696
ABSTRACT:
A method for accurately and quickly positioning a double lumen gastroduodenal tube into predetermined locations utilizing an endoscopically placed guide wire to retrieve duodenal fluid uncontaminated by gastric fluid, with little or no discomfort to the patient, and minimal radiation exposure. Specifically, an endoscope is passed through a patent's esophagus and stomach into the duodenum such that its distal end is located at a predetermined location, such as the fourth portion of the duodenum. While the endoscope is held in place, a guide-wire is passed through its center instrument channel to position a distal end of the guide-wire adjacent to the distal end of the endoscope. The endoscope is then withdrawn from the patient, leaving the guide-wire. A double lumen gastroduodenal tube is then threaded over the guide-wire such that gastric ports are aligned with the stomach and duodenal ports are aligned with the fourth portion of the duodenum so that upon aspiration of the gastric ports, the gastric fluid is prevented from entering the duodenum and contaminating the duodenal fluid.
REFERENCES:
patent: 4905667 (1990-03-01), Foerster et al.
patent: 4949706 (1990-08-01), Thon
patent: 5334143 (1994-08-01), Carroll
patent: 5379779 (1995-01-01), Rowland et al.
"Chronic Pancreatitis" authored by Michael L. Steer, M.D., Irving Waxman, M.D., and Steven Freedman, M.D., dated Jun. 1, 1995 from the New England Journal of Medicine.
Freedman Steven
Waxman Irving
Rimell Sam
The Beth Israel Hospital Association
Wingood Pamela Y.
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