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:
Jul. 29, 1997
Filed:
Oct. 16, 1995
Irving Waxman, Newton, MA (US);
Steven Freedman, Brighton, MA (US);
The Beth Israel Hospital Association, Boston, MA (US);
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 The endoscope is then withdrawn from the patient, leaving the guide-wire.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.