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US 10,646,406 B2Granted
Nasogastric tube
AssigneeEnvizion Medical Ltd.
InventorsAvinoam Nevler, Orit Shaked, Eyal Haytman
Life of this patent
Estimating the term…
Abstract
A nasogastric tube (10) including a main lumen (12) having one or more proximal connectors (14) for connecting to a source of substances or pressure, and one or more vacuum lumens (16) peripherally surrounding the main lumen (12), each vacuum lumen (16) including a vacuum sealing portion (24), which includes one or more suction ports (26) for sealingly drawing an inner wall of an esophagus thereagainst.
Claims12
A method for supplying substances or pressure to a stomach and/or duodenum of a patient, while sealing an esophagus against reflux, the method comprising:
- introducing a tube through the esophagus of the patient, said tube comprising:
- a main lumen having one or more proximal connectors connectable to a source of substances or pressure and a distal end configured to be positioned within the stomach and/or duodenum when in use, the distal end comprising an opening that during use allows access to the stomach and/or duodenum for the substances or pressure;
- and
- at least four vacuum lumens peripherally surrounding said main lumen, each of said vacuum lumens comprising a vacuum sealing portion;
- wherein a distance between said opening in the distal end and said vacuum sealing portions is such that when said distal end is positioned within the stomach and/or duodenum, each of said vacuum sealing portions is located within the esophagus, wherein each of said vacuum sealing portions comprises one or more suction ports;
- and
- applying vacuum to said one or more suction ports so as to circumferentially and sealingly draw an inner wall of the esophagus against the one or more suction ports, thereby disabling reflux.
4 more elements
Dependencies are inferred from the claim text.