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:
Jun. 21, 1988
Filed:
Dec. 16, 1985
Yosuke Okada, Tokyo, JP;
Sherwood Medical Company, St. Louis, MO (US);
Abstract
This invention provides an improvement in a method of surgically treating an esophageal varix utilizing an endoscope wherein air under pressure is directed to expand a patient's esophagus and wherein the varix is located, punctured and injected with a sclerosing material. The subject improvement involves directing a dual-lumen balloon tube through the patient's esophagus, the dual-lumen balloon tube including a primary suction lumen and a secondary inflation lumen. After the vatix is located, punctured and injected with sclerosing material, the balloon tube is partially withdrawn to position the balloon adjacent the varix and fluid under pressure is directed through the secondary lumen to inflate the balloon to thereby compress the varix to assist in stemming the flow of blood therefrom. Suction is then applied to the primary lumen to relieve pressure in the patient's stomach. This invention also provides an improved dual-lumen suction tube wherein the tube has a first portion constructed of a flexible but relatively hard plastic, and a second portion defining a distal end tube tip which is constructed of a relatively softer plastic than the first portion, such tube tip being mounted on a distal end of the first portion.